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Drains",{"type":611,"value":612,"toc":4468},"minimark",[613,627,630,681,688,809,816,829,1496,1519,1524,1527,2002,2006,2011,2052,2082,2086,2093,3262,3270,3274,3286,3642,3648,3654,3840,3864,3868,3878,4138,4155,4159,4164,4270,4274,4279,4320,4329,4333,4338,4380,4386,4390,4393,4401,4415,4427,4431,4464],[614,615,616,617,621,622,626],"p",{},"A ",[618,619,620],"strong",{},"drain"," is the terminal step of evlog's pipeline: a function that receives wide events and ships them somewhere: an HTTP API, a message queue, a database, a webhook, a local file. evlog ships built-in drains for popular providers (",[623,624,625],"a",{"href":158},"Adapters overview","). When you need a destination that isn't covered, you write your own.",[614,628,629],{},"Two factories cover every case:",[631,632,633,646],"table",{},[634,635,636],"thead",{},[637,638,639,643],"tr",{},[640,641,642],"th",{},"You have…",[640,644,645],{},"Use",[647,648,649,668],"tbody",{},[637,650,651,660],{},[652,653,654,655,659],"td",{},"An HTTP backend (REST, JSON ingest, vendor ",[656,657,658],"code",{},"\u002Fv1\u002Flogs"," endpoint)",[652,661,662],{},[623,663,665],{"href":664},"#definehttpdrain-the-http-recipe",[656,666,667],{},"defineHttpDrain",[637,669,670,673],{},[652,671,672],{},"A non-HTTP transport (gRPC, WebSocket, vendor SDK, queue, raw socket)",[652,674,675],{},[623,676,678],{"href":677},"#definedrain-non-http-transports",[656,679,680],{},"defineDrain",[614,682,683,684,687],{},"Both come from ",[656,685,686],{},"evlog\u002Ftoolkit"," and are the exact factories every built-in adapter uses.",[689,690,694,697,796],"prompt",{":actions":691,"description":692,"icon":693},"[\"copy\",\"cursor\",\"claude\"]","Build a custom evlog drain","i-lucide-code-2",[614,695,696],{},"Build a custom evlog drain that ships wide events to a backend without a built-in adapter.",[698,699,700,715,726,741,759,774,779,789],"ul",{},[701,702,703,704,707,708,710,711,714],"li",{},"For HTTP backends, use ",[656,705,706],{},"defineHttpDrain({ name, resolve, encode })"," from ",[656,709,686],{},", and never call ",[656,712,713],{},"fetch"," directly",[701,716,717,718,721,722,725],{},"For non-HTTP transports (queue, DB, native SDK, raw socket), use ",[656,719,720],{},"defineDrain({ name, send })"," and implement ",[656,723,724],{},"send(events)"," myself",[701,727,728,729,732,733,736,737,740],{},"Resolve config lazily inside ",[656,730,731],{},"resolve()"," via ",[656,734,735],{},"resolveAdapterConfig(namespace, fields, overrides)"," so users get the standard precedence (overrides → ",[656,738,739],{},"runtimeConfig.evlog.\u003Cns>"," → env)",[701,742,743,744,747,748,751,752,755,756],{},"Use the standardized field names: ",[656,745,746],{},"apiKey"," for bearer secrets, ",[656,749,750],{},"endpoint"," for the base URL, ",[656,753,754],{},"serviceName",", ",[656,757,758],{},"timeout",[701,760,761,762,765,766,769,770,773],{},"Encode batched events into the destination's wire format inside ",[656,763,764],{},"encode(events, config)",", return ",[656,767,768],{},"{ url, headers, body }"," (or ",[656,771,772],{},"null"," to opt out of the batch)",[701,775,776,778],{},[656,777,667],{}," handles retries, timeouts, error isolation, batching, and identity headers. Don't reimplement them",[701,780,781,782,785,786,788],{},"Wire the drain via ",[656,783,784],{},"defineEvlog({ drain: createMyDrain() })"," or my framework's middleware ",[656,787,620],{}," option",[701,790,791,792,795],{},"For production, wrap the result in ",[656,793,794],{},"createDrainPipeline"," for batching + retries",[614,797,798,799,804,805],{},"Docs: ",[623,800,801],{"href":801,"rel":802},"https:\u002F\u002Fwww.evlog.dev\u002Fextend\u002Fcustom-drains",[803],"nofollow","\nPipeline: ",[623,806,807],{"href":807,"rel":808},"https:\u002F\u002Fwww.evlog.dev\u002Fextend\u002Fdrain-pipeline",[803],[810,811,813,815],"h2",{"id":812},"definehttpdrain-the-http-recipe",[656,814,667],{}," (the HTTP recipe)",[614,817,818,819,821,822,824,825,828],{},"The recipe every built-in adapter follows. Two pure functions: ",[656,820,731],{}," returns the config (or ",[656,823,772],{}," to skip), ",[656,826,827],{},"encode()"," returns the HTTP request payload.",[830,831,832],"code-collapse",{},[833,834,840],"pre",{"className":835,"code":836,"filename":837,"language":838,"meta":839,"style":839},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import {\n  defineHttpDrain,\n  resolveAdapterConfig,\n  type ConfigField,\n} from 'evlog\u002Ftoolkit'\n\ninterface MyServiceConfig {\n  apiKey: string\n  endpoint?: string\n  timeout?: number\n}\n\nconst FIELDS: ConfigField\u003CMyServiceConfig>[] = [\n  { key: 'apiKey', env: ['MYSERVICE_API_KEY'] },\n  { key: 'endpoint', env: ['MYSERVICE_ENDPOINT'] },\n  { key: 'timeout' },\n]\n\nexport function createMyServiceDrain(overrides?: Partial\u003CMyServiceConfig>) {\n  return defineHttpDrain\u003CMyServiceConfig>({\n    name: 'myservice',\n    resolve: async () => {\n      const cfg = await resolveAdapterConfig\u003CMyServiceConfig>('myservice', FIELDS, overrides)\n      if (!cfg.apiKey) {\n        console.error('[evlog\u002Fmyservice] Missing apiKey')\n        return null\n      }\n      return cfg as MyServiceConfig\n    },\n    encode: (events, cfg) => ({\n      url: `${cfg.endpoint ?? 'https:\u002F\u002Fapi.myservice.com'}\u002Fv1\u002Fingest`,\n      headers: {\n        'Content-Type': 'application\u002Fjson',\n        Authorization: `Bearer ${cfg.apiKey}`,\n      },\n      body: JSON.stringify(events),\n    }),\n  })\n}\n","lib\u002Fmy-drain.ts","typescript","",[656,841,842,855,865,873,884,902,909,922,935,946,957,963,968,999,1041,1075,1093,1099,1104,1138,1158,1175,1194,1238,1263,1285,1294,1300,1314,1320,1346,1383,1393,1415,1443,1449,1473,1483,1491],{"__ignoreMap":839},[843,844,847,851],"span",{"class":845,"line":846},"line",1,[843,848,850],{"class":849},"s7zQu","import",[843,852,854],{"class":853},"sMK4o"," {\n",[843,856,858,862],{"class":845,"line":857},2,[843,859,861],{"class":860},"sTEyZ","  defineHttpDrain",[843,863,864],{"class":853},",\n",[843,866,868,871],{"class":845,"line":867},3,[843,869,870],{"class":860},"  resolveAdapterConfig",[843,872,864],{"class":853},[843,874,876,879,882],{"class":845,"line":875},4,[843,877,878],{"class":849},"  type",[843,880,881],{"class":860}," ConfigField",[843,883,864],{"class":853},[843,885,887,890,893,896,899],{"class":845,"line":886},5,[843,888,889],{"class":853},"}",[843,891,892],{"class":849}," from",[843,894,895],{"class":853}," '",[843,897,686],{"class":898},"sfazB",[843,900,901],{"class":853},"'\n",[843,903,905],{"class":845,"line":904},6,[843,906,908],{"emptyLinePlaceholder":907},true,"\n",[843,910,912,916,920],{"class":845,"line":911},7,[843,913,915],{"class":914},"spNyl","interface",[843,917,919],{"class":918},"sBMFI"," MyServiceConfig",[843,921,854],{"class":853},[843,923,925,929,932],{"class":845,"line":924},8,[843,926,928],{"class":927},"swJcz","  apiKey",[843,930,931],{"class":853},":",[843,933,934],{"class":918}," string\n",[843,936,938,941,944],{"class":845,"line":937},9,[843,939,940],{"class":927},"  endpoint",[843,942,943],{"class":853},"?:",[843,945,934],{"class":918},[843,947,949,952,954],{"class":845,"line":948},10,[843,950,951],{"class":927},"  timeout",[843,953,943],{"class":853},[843,955,956],{"class":918}," number\n",[843,958,960],{"class":845,"line":959},11,[843,961,962],{"class":853},"}\n",[843,964,966],{"class":845,"line":965},12,[843,967,908],{"emptyLinePlaceholder":907},[843,969,971,974,977,979,981,984,987,990,993,996],{"class":845,"line":970},13,[843,972,973],{"class":914},"const",[843,975,976],{"class":860}," FIELDS",[843,978,931],{"class":853},[843,980,881],{"class":918},[843,982,983],{"class":853},"\u003C",[843,985,986],{"class":918},"MyServiceConfig",[843,988,989],{"class":853},">",[843,991,992],{"class":860},"[] ",[843,994,995],{"class":853},"=",[843,997,998],{"class":860}," [\n",[843,1000,1002,1005,1008,1010,1012,1014,1017,1020,1023,1025,1028,1030,1033,1035,1038],{"class":845,"line":1001},14,[843,1003,1004],{"class":853},"  {",[843,1006,1007],{"class":927}," key",[843,1009,931],{"class":853},[843,1011,895],{"class":853},[843,1013,746],{"class":898},[843,1015,1016],{"class":853},"'",[843,1018,1019],{"class":853},",",[843,1021,1022],{"class":927}," env",[843,1024,931],{"class":853},[843,1026,1027],{"class":860}," [",[843,1029,1016],{"class":853},[843,1031,1032],{"class":898},"MYSERVICE_API_KEY",[843,1034,1016],{"class":853},[843,1036,1037],{"class":860},"] ",[843,1039,1040],{"class":853},"},\n",[843,1042,1044,1046,1048,1050,1052,1054,1056,1058,1060,1062,1064,1066,1069,1071,1073],{"class":845,"line":1043},15,[843,1045,1004],{"class":853},[843,1047,1007],{"class":927},[843,1049,931],{"class":853},[843,1051,895],{"class":853},[843,1053,750],{"class":898},[843,1055,1016],{"class":853},[843,1057,1019],{"class":853},[843,1059,1022],{"class":927},[843,1061,931],{"class":853},[843,1063,1027],{"class":860},[843,1065,1016],{"class":853},[843,1067,1068],{"class":898},"MYSERVICE_ENDPOINT",[843,1070,1016],{"class":853},[843,1072,1037],{"class":860},[843,1074,1040],{"class":853},[843,1076,1078,1080,1082,1084,1086,1088,1090],{"class":845,"line":1077},16,[843,1079,1004],{"class":853},[843,1081,1007],{"class":927},[843,1083,931],{"class":853},[843,1085,895],{"class":853},[843,1087,758],{"class":898},[843,1089,1016],{"class":853},[843,1091,1092],{"class":853}," },\n",[843,1094,1096],{"class":845,"line":1095},17,[843,1097,1098],{"class":860},"]\n",[843,1100,1102],{"class":845,"line":1101},18,[843,1103,908],{"emptyLinePlaceholder":907},[843,1105,1107,1110,1113,1117,1120,1124,1126,1129,1131,1133,1136],{"class":845,"line":1106},19,[843,1108,1109],{"class":849},"export",[843,1111,1112],{"class":914}," function",[843,1114,1116],{"class":1115},"s2Zo4"," createMyServiceDrain",[843,1118,1119],{"class":853},"(",[843,1121,1123],{"class":1122},"sHdIc","overrides",[843,1125,943],{"class":853},[843,1127,1128],{"class":918}," Partial",[843,1130,983],{"class":853},[843,1132,986],{"class":918},[843,1134,1135],{"class":853},">)",[843,1137,854],{"class":853},[843,1139,1141,1144,1147,1149,1151,1153,1155],{"class":845,"line":1140},20,[843,1142,1143],{"class":849},"  return",[843,1145,1146],{"class":1115}," defineHttpDrain",[843,1148,983],{"class":853},[843,1150,986],{"class":918},[843,1152,989],{"class":853},[843,1154,1119],{"class":927},[843,1156,1157],{"class":853},"{\n",[843,1159,1161,1164,1166,1168,1171,1173],{"class":845,"line":1160},21,[843,1162,1163],{"class":927},"    name",[843,1165,931],{"class":853},[843,1167,895],{"class":853},[843,1169,1170],{"class":898},"myservice",[843,1172,1016],{"class":853},[843,1174,864],{"class":853},[843,1176,1178,1181,1183,1186,1189,1192],{"class":845,"line":1177},22,[843,1179,1180],{"class":1115},"    resolve",[843,1182,931],{"class":853},[843,1184,1185],{"class":914}," async",[843,1187,1188],{"class":853}," ()",[843,1190,1191],{"class":914}," =>",[843,1193,854],{"class":853},[843,1195,1197,1200,1203,1206,1209,1212,1214,1216,1218,1220,1222,1224,1226,1228,1230,1232,1235],{"class":845,"line":1196},23,[843,1198,1199],{"class":914},"      const",[843,1201,1202],{"class":860}," cfg",[843,1204,1205],{"class":853}," =",[843,1207,1208],{"class":849}," 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console",[843,1270,1255],{"class":853},[843,1272,1273],{"class":1115},"error",[843,1275,1119],{"class":927},[843,1277,1016],{"class":853},[843,1279,1280],{"class":898},"[evlog\u002Fmyservice] Missing apiKey",[843,1282,1016],{"class":853},[843,1284,1237],{"class":927},[843,1286,1288,1291],{"class":845,"line":1287},26,[843,1289,1290],{"class":849},"        return",[843,1292,1293],{"class":853}," null\n",[843,1295,1297],{"class":845,"line":1296},27,[843,1298,1299],{"class":853},"      }\n",[843,1301,1303,1306,1308,1311],{"class":845,"line":1302},28,[843,1304,1305],{"class":849},"      return",[843,1307,1202],{"class":860},[843,1309,1310],{"class":849}," as",[843,1312,1313],{"class":918}," MyServiceConfig\n",[843,1315,1317],{"class":845,"line":1316},29,[843,1318,1319],{"class":853},"    },\n",[843,1321,1323,1326,1328,1330,1333,1335,1337,1340,1342,1344],{"class":845,"line":1322},30,[843,1324,1325],{"class":1115},"    encode",[843,1327,931],{"class":853},[843,1329,1246],{"class":853},[843,1331,1332],{"class":1122},"events",[843,1334,1019],{"class":853},[843,1336,1202],{"class":1122},[843,1338,1339],{"class":853},")",[843,1341,1191],{"class":914},[843,1343,1246],{"class":927},[843,1345,1157],{"class":853},[843,1347,1349,1352,1354,1357,1359,1361,1364,1367,1369,1372,1375,1378,1381],{"class":845,"line":1348},31,[843,1350,1351],{"class":927},"      url",[843,1353,931],{"class":853},[843,1355,1356],{"class":853}," `${",[843,1358,1252],{"class":860},[843,1360,1255],{"class":853},[843,1362,1363],{"class":860},"endpoint ",[843,1365,1366],{"class":853},"??",[843,1368,895],{"class":853},[843,1370,1371],{"class":898},"https:\u002F\u002Fapi.myservice.com",[843,1373,1374],{"class":853},"'}",[843,1376,1377],{"class":898},"\u002Fv1\u002Fingest",[843,1379,1380],{"class":853},"`",[843,1382,864],{"class":853},[843,1384,1386,1389,1391],{"class":845,"line":1385},32,[843,1387,1388],{"class":927},"      headers",[843,1390,931],{"class":853},[843,1392,854],{"class":853},[843,1394,1396,1399,1402,1404,1406,1408,1411,1413],{"class":845,"line":1395},33,[843,1397,1398],{"class":853},"        '",[843,1400,1401],{"class":927},"Content-Type",[843,1403,1016],{"class":853},[843,1405,931],{"class":853},[843,1407,895],{"class":853},[843,1409,1410],{"class":898},"application\u002Fjson",[843,1412,1016],{"class":853},[843,1414,864],{"class":853},[843,1416,1418,1421,1423,1426,1429,1432,1434,1436,1438,1441],{"class":845,"line":1417},34,[843,1419,1420],{"class":927},"        Authorization",[843,1422,931],{"class":853},[843,1424,1425],{"class":853}," `",[843,1427,1428],{"class":898},"Bearer ",[843,1430,1431],{"class":853},"${",[843,1433,1252],{"class":860},[843,1435,1255],{"class":853},[843,1437,746],{"class":860},[843,1439,1440],{"class":853},"}`",[843,1442,864],{"class":853},[843,1444,1446],{"class":845,"line":1445},35,[843,1447,1448],{"class":853},"      },\n",[843,1450,1452,1455,1457,1460,1462,1465,1467,1469,1471],{"class":845,"line":1451},36,[843,1453,1454],{"class":927},"      body",[843,1456,931],{"class":853},[843,1458,1459],{"class":860}," JSON",[843,1461,1255],{"class":853},[843,1463,1464],{"class":1115},"stringify",[843,1466,1119],{"class":927},[843,1468,1332],{"class":860},[843,1470,1339],{"class":927},[843,1472,864],{"class":853},[843,1474,1476,1479,1481],{"class":845,"line":1475},37,[843,1477,1478],{"class":853},"    }",[843,1480,1339],{"class":927},[843,1482,864],{"class":853},[843,1484,1486,1489],{"class":845,"line":1485},38,[843,1487,1488],{"class":853},"  }",[843,1490,1237],{"class":927},[843,1492,1494],{"class":845,"line":1493},39,[843,1495,962],{"class":853},[614,1497,1498,1499,1501,1502,1505,1506,1509,1510,1514,1515,1518],{},"That's it. ",[656,1500,667],{}," handles retries (default 2), timeouts (default 5000ms), error isolation, and the identity headers (",[656,1503,1504],{},"User-Agent: evlog\u002F\u003Cversion>"," + ",[656,1507,1508],{},"X-Evlog-Source: \u003Cname>","). Your app pipeline keeps running even if your destination is down, and when you wrap the drain in ",[623,1511,1512],{"href":540},[656,1513,794],{},", the pipeline takes over retries through the drain's ",[656,1516,1517],{},"raw"," variant.",[1520,1521,1523],"h3",{"id":1522},"a-5-minute-example-internal-loki-drain","A 5-minute example: internal Loki drain",[614,1525,1526],{},"A complete working drain in 25 lines, with no external config helper:",[833,1528,1533],{"className":1529,"code":1530,"filename":1531,"language":1532,"meta":839,"style":839},"language-ts shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { defineHttpDrain } from 'evlog\u002Ftoolkit'\n\nexport function createLokiDrain(overrides?: { url?: string, token?: string }) {\n  return defineHttpDrain\u003C{ url: string, token: string }>({\n    name: 'loki',\n    resolve: () => ({\n      url: overrides?.url ?? process.env.LOKI_URL!,\n      token: overrides?.token ?? process.env.LOKI_TOKEN!,\n    }),\n    encode: (events, config) => ({\n      url: `${config.url}\u002Floki\u002Fapi\u002Fv1\u002Fpush`,\n      headers: {\n        'Content-Type': 'application\u002Fjson',\n        Authorization: `Bearer ${config.token}`,\n      },\n      body: JSON.stringify({\n        streams: events.map(e => ({\n          stream: { service: e.service, level: e.level },\n          values: [[String(Date.parse(e.timestamp) * 1e6), JSON.stringify(e)]],\n        })),\n      }),\n    }),\n  })\n}\n","lib\u002Floki-drain.ts","ts",[656,1534,1535,1555,1559,1598,1628,1643,1657,1690,1719,1727,1750,1774,1782,1800,1822,1826,1842,1867,1905,1965,1975,1984,1992,1998],{"__ignoreMap":839},[843,1536,1537,1539,1542,1544,1547,1549,1551,1553],{"class":845,"line":846},[843,1538,850],{"class":849},[843,1540,1541],{"class":853}," {",[843,1543,1146],{"class":860},[843,1545,1546],{"class":853}," }",[843,1548,892],{"class":849},[843,1550,895],{"class":853},[843,1552,686],{"class":898},[843,1554,901],{"class":853},[843,1556,1557],{"class":845,"line":857},[843,1558,908],{"emptyLinePlaceholder":907},[843,1560,1561,1563,1565,1568,1570,1572,1574,1576,1579,1581,1584,1586,1589,1591,1593,1596],{"class":845,"line":867},[843,1562,1109],{"class":849},[843,1564,1112],{"class":914},[843,1566,1567],{"class":1115}," createLokiDrain",[843,1569,1119],{"class":853},[843,1571,1123],{"class":1122},[843,1573,943],{"class":853},[843,1575,1541],{"class":853},[843,1577,1578],{"class":927}," url",[843,1580,943],{"class":853},[843,1582,1583],{"class":918}," string",[843,1585,1019],{"class":853},[843,1587,1588],{"class":927}," token",[843,1590,943],{"class":853},[843,1592,1583],{"class":918},[843,1594,1595],{"class":853}," })",[843,1597,854],{"class":853},[843,1599,1600,1602,1604,1607,1609,1611,1613,1615,1617,1619,1621,1624,1626],{"class":845,"line":875},[843,1601,1143],{"class":849},[843,1603,1146],{"class":1115},[843,1605,1606],{"class":853},"\u003C{",[843,1608,1578],{"class":927},[843,1610,931],{"class":853},[843,1612,1583],{"class":918},[843,1614,1019],{"class":853},[843,1616,1588],{"class":927},[843,1618,931],{"class":853},[843,1620,1583],{"class":918},[843,1622,1623],{"class":853}," }>",[843,1625,1119],{"class":927},[843,1627,1157],{"class":853},[843,1629,1630,1632,1634,1636,1639,1641],{"class":845,"line":886},[843,1631,1163],{"class":927},[843,1633,931],{"class":853},[843,1635,895],{"class":853},[843,1637,1638],{"class":898},"loki",[843,1640,1016],{"class":853},[843,1642,864],{"class":853},[843,1644,1645,1647,1649,1651,1653,1655],{"class":845,"line":904},[843,1646,1180],{"class":1115},[843,1648,931],{"class":853},[843,1650,1188],{"class":853},[843,1652,1191],{"class":914},[843,1654,1246],{"class":927},[843,1656,1157],{"class":853},[843,1658,1659,1661,1663,1665,1668,1671,1674,1677,1679,1682,1684,1687],{"class":845,"line":911},[843,1660,1351],{"class":927},[843,1662,931],{"class":853},[843,1664,1234],{"class":860},[843,1666,1667],{"class":853},"?.",[843,1669,1670],{"class":860},"url",[843,1672,1673],{"class":853}," ??",[843,1675,1676],{"class":860}," process",[843,1678,1255],{"class":853},[843,1680,1681],{"class":860},"env",[843,1683,1255],{"class":853},[843,1685,1686],{"class":860},"LOKI_URL",[843,1688,1689],{"class":853},"!,\n",[843,1691,1692,1695,1697,1699,1701,1704,1706,1708,1710,1712,1714,1717],{"class":845,"line":924},[843,1693,1694],{"class":927},"      token",[843,1696,931],{"class":853},[843,1698,1234],{"class":860},[843,1700,1667],{"class":853},[843,1702,1703],{"class":860},"token",[843,1705,1673],{"class":853},[843,1707,1676],{"class":860},[843,1709,1255],{"class":853},[843,1711,1681],{"class":860},[843,1713,1255],{"class":853},[843,1715,1716],{"class":860},"LOKI_TOKEN",[843,1718,1689],{"class":853},[843,1720,1721,1723,1725],{"class":845,"line":937},[843,1722,1478],{"class":853},[843,1724,1339],{"class":927},[843,1726,864],{"class":853},[843,1728,1729,1731,1733,1735,1737,1739,1742,1744,1746,1748],{"class":845,"line":948},[843,1730,1325],{"class":1115},[843,1732,931],{"class":853},[843,1734,1246],{"class":853},[843,1736,1332],{"class":1122},[843,1738,1019],{"class":853},[843,1740,1741],{"class":1122}," 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1e6",[843,1947,1339],{"class":927},[843,1949,1019],{"class":853},[843,1951,1459],{"class":860},[843,1953,1255],{"class":853},[843,1955,1464],{"class":1115},[843,1957,1119],{"class":927},[843,1959,1860],{"class":860},[843,1961,1962],{"class":927},")]]",[843,1964,864],{"class":853},[843,1966,1967,1970,1973],{"class":845,"line":1140},[843,1968,1969],{"class":853},"        }",[843,1971,1972],{"class":927},"))",[843,1974,864],{"class":853},[843,1976,1977,1980,1982],{"class":845,"line":1160},[843,1978,1979],{"class":853},"      }",[843,1981,1339],{"class":927},[843,1983,864],{"class":853},[843,1985,1986,1988,1990],{"class":845,"line":1177},[843,1987,1478],{"class":853},[843,1989,1339],{"class":927},[843,1991,864],{"class":853},[843,1993,1994,1996],{"class":845,"line":1196},[843,1995,1488],{"class":853},[843,1997,1237],{"class":927},[843,1999,2000],{"class":845,"line":1240},[843,2001,962],{"class":853},[810,2003,2005],{"id":2004},"know-which-config-wins","Know which config wins",[614,2007,2008,2010],{},[656,2009,735],{}," walks the standard chain so users get the same configuration UX as built-in adapters:",[2012,2013,2014,2020,2026,2032],"ol",{},[701,2015,2016,2017,2019],{},"Explicit ",[656,2018,1123],{}," passed to your factory",[701,2021,2022,2025],{},[656,2023,2024],{},"runtimeConfig.evlog.\u003Cnamespace>"," (Nuxt\u002FNitro)",[701,2027,2028,2031],{},[656,2029,2030],{},"runtimeConfig.\u003Cnamespace>"," (legacy Nuxt\u002FNitro)",[701,2033,2034,2037,2038,2041,2042,2045,2046,2048,2049,1339],{},[656,2035,2036],{},"\u003CNS>_\u003CFIELD>"," env vars (list ",[656,2039,2040],{},"NUXT_\u003CNS>_\u003CFIELD>"," in ",[656,2043,2044],{},"ConfigField.env"," for silent Nuxt compat; show only ",[656,2047,2036],{}," in error messages via ",[656,2050,2051],{},"formatPublicEnvKeys",[614,2053,2054,2055,755,2057,755,2059,755,2061,2063,2064,2066,2067,2069,2070,2073,2074,2077,2078,2081],{},"Field names should follow the project conventions: ",[656,2056,746],{},[656,2058,750],{},[656,2060,754],{},[656,2062,758],{},". If you're renaming an existing field (e.g. ",[656,2065,1703],{}," → ",[656,2068,746],{},"), keep both as ",[656,2071,2072],{},"ConfigField"," entries for one major version. See ",[656,2075,2076],{},"axiom.ts"," and ",[656,2079,2080],{},"better-stack.ts"," for the deprecation pattern.",[810,2083,2085],{"id":2084},"wire-the-drain-into-your-framework","Wire the drain into your framework",[614,2087,2088,2089,2092],{},"Once ",[656,2090,2091],{},"createMyServiceDrain()"," returns the drain, wire it like any other:",[2094,2095,2096,2203,2318,2440,2528,2640,2740,2819,2893,2930,3004,3036,3121,3195],"framework-tabs",{},[833,2097,2100],{"className":835,"code":2098,"filename":245,"language":838,"meta":2099,"style":839},"import { createMyServiceDrain } from '~\u002Fserver\u002Futils\u002Fmy-drain'\n\nconst drain = createMyServiceDrain()\n\nexport default defineNitroPlugin((nitroApp) => {\n  nitroApp.hooks.hook('evlog:drain', drain)\n})\n","server\u002Fplugins\u002Fevlog-drain.ts",[656,2101,2102,2121,2125,2139,2143,2166,2197],{"__ignoreMap":839},[843,2103,2104,2106,2108,2110,2112,2114,2116,2119],{"class":845,"line":846},[843,2105,850],{"class":849},[843,2107,1541],{"class":853},[843,2109,1116],{"class":860},[843,2111,1546],{"class":853},[843,2113,892],{"class":849},[843,2115,895],{"class":853},[843,2117,2118],{"class":898},"~\u002Fserver\u002Futils\u002Fmy-drain",[843,2120,901],{"class":853},[843,2122,2123],{"class":845,"line":857},[843,2124,908],{"emptyLinePlaceholder":907},[843,2126,2127,2129,2132,2134,2136],{"class":845,"line":867},[843,2128,973],{"class":914},[843,2130,2131],{"class":860}," drain ",[843,2133,995],{"class":853},[843,2135,1116],{"class":1115},[843,2137,2138],{"class":860},"()\n",[843,2140,2141],{"class":845,"line":875},[843,2142,908],{"emptyLinePlaceholder":907},[843,2144,2145,2147,2150,2153,2155,2157,2160,2162,2164],{"class":845,"line":886},[843,2146,1109],{"class":849},[843,2148,2149],{"class":849}," default",[843,2151,2152],{"class":1115}," defineNitroPlugin",[843,2154,1119],{"class":860},[843,2156,1119],{"class":853},[843,2158,2159],{"class":1122},"nitroApp",[843,2161,1339],{"class":853},[843,2163,1191],{"class":914},[843,2165,854],{"class":853},[843,2167,2168,2171,2173,2176,2178,2181,2183,2185,2188,2190,2192,2195],{"class":845,"line":904},[843,2169,2170],{"class":860},"  nitroApp",[843,2172,1255],{"class":853},[843,2174,2175],{"class":860},"hooks",[843,2177,1255],{"class":853},[843,2179,2180],{"class":1115},"hook",[843,2182,1119],{"class":927},[843,2184,1016],{"class":853},[843,2186,2187],{"class":898},"evlog:drain",[843,2189,1016],{"class":853},[843,2191,1019],{"class":853},[843,2193,2194],{"class":860}," drain",[843,2196,1237],{"class":927},[843,2198,2199,2201],{"class":845,"line":911},[843,2200,889],{"class":853},[843,2202,1237],{"class":860},[833,2204,2206],{"className":835,"code":2205,"filename":260,"language":838,"meta":2099,"style":839},"import { definePlugin } from 'nitro'\nimport { createMyServiceDrain } from '~\u002Fserver\u002Futils\u002Fmy-drain'\n\nconst drain = createMyServiceDrain()\n\nexport default definePlugin((nitroApp) => {\n  nitroApp.hooks.hook('evlog:drain', drain)\n})\n",[656,2207,2208,2228,2246,2250,2262,2266,2286,2312],{"__ignoreMap":839},[843,2209,2210,2212,2214,2217,2219,2221,2223,2226],{"class":845,"line":846},[843,2211,850],{"class":849},[843,2213,1541],{"class":853},[843,2215,2216],{"class":860}," definePlugin",[843,2218,1546],{"class":853},[843,2220,892],{"class":849},[843,2222,895],{"class":853},[843,2224,2225],{"class":898},"nitro",[843,2227,901],{"class":853},[843,2229,2230,2232,2234,2236,2238,2240,2242,2244],{"class":845,"line":857},[843,2231,850],{"class":849},[843,2233,1541],{"class":853},[843,2235,1116],{"class":860},[843,2237,1546],{"class":853},[843,2239,892],{"class":849},[843,2241,895],{"class":853},[843,2243,2118],{"class":898},[843,2245,901],{"class":853},[843,2247,2248],{"class":845,"line":867},[843,2249,908],{"emptyLinePlaceholder":907},[843,2251,2252,2254,2256,2258,2260],{"class":845,"line":875},[843,2253,973],{"class":914},[843,2255,2131],{"class":860},[843,2257,995],{"class":853},[843,2259,1116],{"class":1115},[843,2261,2138],{"class":860},[843,2263,2264],{"class":845,"line":886},[843,2265,908],{"emptyLinePlaceholder":907},[843,2267,2268,2270,2272,2274,2276,2278,2280,2282,2284],{"class":845,"line":904},[843,2269,1109],{"class":849},[843,2271,2149],{"class":849},[843,2273,2216],{"class":1115},[843,2275,1119],{"class":860},[843,2277,1119],{"class":853},[843,2279,2159],{"class":1122},[843,2281,1339],{"class":853},[843,2283,1191],{"class":914},[843,2285,854],{"class":853},[843,2287,2288,2290,2292,2294,2296,2298,2300,2302,2304,2306,2308,2310],{"class":845,"line":911},[843,2289,2170],{"class":860},[843,2291,1255],{"class":853},[843,2293,2175],{"class":860},[843,2295,1255],{"class":853},[843,2297,2180],{"class":1115},[843,2299,1119],{"class":927},[843,2301,1016],{"class":853},[843,2303,2187],{"class":898},[843,2305,1016],{"class":853},[843,2307,1019],{"class":853},[843,2309,2194],{"class":860},[843,2311,1237],{"class":927},[843,2313,2314,2316],{"class":845,"line":924},[843,2315,889],{"class":853},[843,2317,1237],{"class":860},[833,2319,2322],{"className":835,"code":2320,"filename":250,"language":838,"meta":2321,"style":839},"import { createEvlog } from 'evlog\u002Fnext'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\nexport const { withEvlog, useLogger, log, createError } = createEvlog({\n  service: 'my-app',\n  drain: createMyServiceDrain(),\n})\n","lib\u002Fevlog.ts",[656,2323,2324,2344,2363,2367,2404,2420,2434],{"__ignoreMap":839},[843,2325,2326,2328,2330,2333,2335,2337,2339,2342],{"class":845,"line":846},[843,2327,850],{"class":849},[843,2329,1541],{"class":853},[843,2331,2332],{"class":860}," createEvlog",[843,2334,1546],{"class":853},[843,2336,892],{"class":849},[843,2338,895],{"class":853},[843,2340,2341],{"class":898},"evlog\u002Fnext",[843,2343,901],{"class":853},[843,2345,2346,2348,2350,2352,2354,2356,2358,2361],{"class":845,"line":857},[843,2347,850],{"class":849},[843,2349,1541],{"class":853},[843,2351,1116],{"class":860},[843,2353,1546],{"class":853},[843,2355,892],{"class":849},[843,2357,895],{"class":853},[843,2359,2360],{"class":898},".\u002Fmy-drain",[843,2362,901],{"class":853},[843,2364,2365],{"class":845,"line":867},[843,2366,908],{"emptyLinePlaceholder":907},[843,2368,2369,2371,2374,2376,2379,2381,2384,2386,2389,2391,2394,2396,2398,2400,2402],{"class":845,"line":875},[843,2370,1109],{"class":849},[843,2372,2373],{"class":914}," const",[843,2375,1541],{"class":853},[843,2377,2378],{"class":860}," withEvlog",[843,2380,1019],{"class":853},[843,2382,2383],{"class":860}," useLogger",[843,2385,1019],{"class":853},[843,2387,2388],{"class":860}," log",[843,2390,1019],{"class":853},[843,2392,2393],{"class":860}," createError ",[843,2395,889],{"class":853},[843,2397,1205],{"class":853},[843,2399,2332],{"class":1115},[843,2401,1119],{"class":860},[843,2403,1157],{"class":853},[843,2405,2406,2409,2411,2413,2416,2418],{"class":845,"line":886},[843,2407,2408],{"class":927},"  service",[843,2410,931],{"class":853},[843,2412,895],{"class":853},[843,2414,2415],{"class":898},"my-app",[843,2417,1016],{"class":853},[843,2419,864],{"class":853},[843,2421,2422,2425,2427,2429,2432],{"class":845,"line":904},[843,2423,2424],{"class":927},"  drain",[843,2426,931],{"class":853},[843,2428,1116],{"class":1115},[843,2430,2431],{"class":860},"()",[843,2433,864],{"class":853},[843,2435,2436,2438],{"class":845,"line":911},[843,2437,889],{"class":853},[843,2439,1237],{"class":860},[833,2441,2444],{"className":835,"code":2442,"filename":255,"language":838,"meta":2443,"style":839},"import { createEvlogHooks } from 'evlog\u002Fsveltekit'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\nexport const { handle, handleError } = createEvlogHooks({ drain: createMyServiceDrain() })\n","src\u002Fhooks.server.ts",[656,2445,2446,2466,2484,2488],{"__ignoreMap":839},[843,2447,2448,2450,2452,2455,2457,2459,2461,2464],{"class":845,"line":846},[843,2449,850],{"class":849},[843,2451,1541],{"class":853},[843,2453,2454],{"class":860}," createEvlogHooks",[843,2456,1546],{"class":853},[843,2458,892],{"class":849},[843,2460,895],{"class":853},[843,2462,2463],{"class":898},"evlog\u002Fsveltekit",[843,2465,901],{"class":853},[843,2467,2468,2470,2472,2474,2476,2478,2480,2482],{"class":845,"line":857},[843,2469,850],{"class":849},[843,2471,1541],{"class":853},[843,2473,1116],{"class":860},[843,2475,1546],{"class":853},[843,2477,892],{"class":849},[843,2479,895],{"class":853},[843,2481,2360],{"class":898},[843,2483,901],{"class":853},[843,2485,2486],{"class":845,"line":867},[843,2487,908],{"emptyLinePlaceholder":907},[843,2489,2490,2492,2494,2496,2499,2501,2504,2506,2508,2510,2512,2515,2517,2519,2521,2524,2526],{"class":845,"line":875},[843,2491,1109],{"class":849},[843,2493,2373],{"class":914},[843,2495,1541],{"class":853},[843,2497,2498],{"class":860}," handle",[843,2500,1019],{"class":853},[843,2502,2503],{"class":860}," handleError ",[843,2505,889],{"class":853},[843,2507,1205],{"class":853},[843,2509,2454],{"class":1115},[843,2511,1119],{"class":860},[843,2513,2514],{"class":853},"{",[843,2516,2194],{"class":927},[843,2518,931],{"class":853},[843,2520,1116],{"class":1115},[843,2522,2523],{"class":860},"() ",[843,2525,889],{"class":853},[843,2527,1237],{"class":860},[833,2529,2530],{"className":835,"code":2205,"filename":265,"language":838,"meta":2099,"style":839},[656,2531,2532,2550,2568,2572,2584,2588,2608,2634],{"__ignoreMap":839},[843,2533,2534,2536,2538,2540,2542,2544,2546,2548],{"class":845,"line":846},[843,2535,850],{"class":849},[843,2537,1541],{"class":853},[843,2539,2216],{"class":860},[843,2541,1546],{"class":853},[843,2543,892],{"class":849},[843,2545,895],{"class":853},[843,2547,2225],{"class":898},[843,2549,901],{"class":853},[843,2551,2552,2554,2556,2558,2560,2562,2564,2566],{"class":845,"line":857},[843,2553,850],{"class":849},[843,2555,1541],{"class":853},[843,2557,1116],{"class":860},[843,2559,1546],{"class":853},[843,2561,892],{"class":849},[843,2563,895],{"class":853},[843,2565,2118],{"class":898},[843,2567,901],{"class":853},[843,2569,2570],{"class":845,"line":867},[843,2571,908],{"emptyLinePlaceholder":907},[843,2573,2574,2576,2578,2580,2582],{"class":845,"line":875},[843,2575,973],{"class":914},[843,2577,2131],{"class":860},[843,2579,995],{"class":853},[843,2581,1116],{"class":1115},[843,2583,2138],{"class":860},[843,2585,2586],{"class":845,"line":886},[843,2587,908],{"emptyLinePlaceholder":907},[843,2589,2590,2592,2594,2596,2598,2600,2602,2604,2606],{"class":845,"line":904},[843,2591,1109],{"class":849},[843,2593,2149],{"class":849},[843,2595,2216],{"class":1115},[843,2597,1119],{"class":860},[843,2599,1119],{"class":853},[843,2601,2159],{"class":1122},[843,2603,1339],{"class":853},[843,2605,1191],{"class":914},[843,2607,854],{"class":853},[843,2609,2610,2612,2614,2616,2618,2620,2622,2624,2626,2628,2630,2632],{"class":845,"line":911},[843,2611,2170],{"class":860},[843,2613,1255],{"class":853},[843,2615,2175],{"class":860},[843,2617,1255],{"class":853},[843,2619,2180],{"class":1115},[843,2621,1119],{"class":927},[843,2623,1016],{"class":853},[843,2625,2187],{"class":898},[843,2627,1016],{"class":853},[843,2629,1019],{"class":853},[843,2631,2194],{"class":860},[843,2633,1237],{"class":927},[843,2635,2636,2638],{"class":845,"line":924},[843,2637,889],{"class":853},[843,2639,1237],{"class":860},[833,2641,2644],{"className":835,"code":2642,"filename":295,"language":838,"meta":2643,"style":839},"import { evlog } from 'evlog\u002Freact-router'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\nexport const middleware: Route.MiddlewareFunction[] = [\n  evlog({ drain: createMyServiceDrain() }),\n]\n","app\u002Froot.tsx",[656,2645,2646,2666,2684,2688,2713,2736],{"__ignoreMap":839},[843,2647,2648,2650,2652,2655,2657,2659,2661,2664],{"class":845,"line":846},[843,2649,850],{"class":849},[843,2651,1541],{"class":853},[843,2653,2654],{"class":860}," evlog",[843,2656,1546],{"class":853},[843,2658,892],{"class":849},[843,2660,895],{"class":853},[843,2662,2663],{"class":898},"evlog\u002Freact-router",[843,2665,901],{"class":853},[843,2667,2668,2670,2672,2674,2676,2678,2680,2682],{"class":845,"line":857},[843,2669,850],{"class":849},[843,2671,1541],{"class":853},[843,2673,1116],{"class":860},[843,2675,1546],{"class":853},[843,2677,892],{"class":849},[843,2679,895],{"class":853},[843,2681,2360],{"class":898},[843,2683,901],{"class":853},[843,2685,2686],{"class":845,"line":867},[843,2687,908],{"emptyLinePlaceholder":907},[843,2689,2690,2692,2694,2697,2699,2702,2704,2707,2709,2711],{"class":845,"line":875},[843,2691,1109],{"class":849},[843,2693,2373],{"class":914},[843,2695,2696],{"class":860}," middleware",[843,2698,931],{"class":853},[843,2700,2701],{"class":918}," Route",[843,2703,1255],{"class":853},[843,2705,2706],{"class":918},"MiddlewareFunction",[843,2708,992],{"class":860},[843,2710,995],{"class":853},[843,2712,998],{"class":860},[843,2714,2715,2718,2720,2722,2724,2726,2728,2730,2732,2734],{"class":845,"line":886},[843,2716,2717],{"class":1115},"  evlog",[843,2719,1119],{"class":860},[843,2721,2514],{"class":853},[843,2723,2194],{"class":927},[843,2725,931],{"class":853},[843,2727,1116],{"class":1115},[843,2729,2523],{"class":860},[843,2731,889],{"class":853},[843,2733,1339],{"class":860},[843,2735,864],{"class":853},[843,2737,2738],{"class":845,"line":904},[843,2739,1098],{"class":860},[833,2741,2744],{"className":835,"code":2742,"filename":280,"language":838,"meta":2743,"style":839},"import { evlog } from 'evlog\u002Fhono'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\napp.use(evlog({ drain: createMyServiceDrain() }))\n","src\u002Findex.ts",[656,2745,2746,2765,2783,2787],{"__ignoreMap":839},[843,2747,2748,2750,2752,2754,2756,2758,2760,2763],{"class":845,"line":846},[843,2749,850],{"class":849},[843,2751,1541],{"class":853},[843,2753,2654],{"class":860},[843,2755,1546],{"class":853},[843,2757,892],{"class":849},[843,2759,895],{"class":853},[843,2761,2762],{"class":898},"evlog\u002Fhono",[843,2764,901],{"class":853},[843,2766,2767,2769,2771,2773,2775,2777,2779,2781],{"class":845,"line":857},[843,2768,850],{"class":849},[843,2770,1541],{"class":853},[843,2772,1116],{"class":860},[843,2774,1546],{"class":853},[843,2776,892],{"class":849},[843,2778,895],{"class":853},[843,2780,2360],{"class":898},[843,2782,901],{"class":853},[843,2784,2785],{"class":845,"line":867},[843,2786,908],{"emptyLinePlaceholder":907},[843,2788,2789,2792,2794,2797,2799,2802,2804,2806,2808,2810,2812,2814,2816],{"class":845,"line":875},[843,2790,2791],{"class":860},"app",[843,2793,1255],{"class":853},[843,2795,2796],{"class":1115},"use",[843,2798,1119],{"class":860},[843,2800,2801],{"class":1115},"evlog",[843,2803,1119],{"class":860},[843,2805,2514],{"class":853},[843,2807,2194],{"class":927},[843,2809,931],{"class":853},[843,2811,1116],{"class":1115},[843,2813,2523],{"class":860},[843,2815,889],{"class":853},[843,2817,2818],{"class":860},"))\n",[833,2820,2822],{"className":835,"code":2821,"filename":275,"language":838,"meta":2743,"style":839},"import { evlog } from 'evlog\u002Fexpress'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\napp.use(evlog({ drain: createMyServiceDrain() }))\n",[656,2823,2824,2843,2861,2865],{"__ignoreMap":839},[843,2825,2826,2828,2830,2832,2834,2836,2838,2841],{"class":845,"line":846},[843,2827,850],{"class":849},[843,2829,1541],{"class":853},[843,2831,2654],{"class":860},[843,2833,1546],{"class":853},[843,2835,892],{"class":849},[843,2837,895],{"class":853},[843,2839,2840],{"class":898},"evlog\u002Fexpress",[843,2842,901],{"class":853},[843,2844,2845,2847,2849,2851,2853,2855,2857,2859],{"class":845,"line":857},[843,2846,850],{"class":849},[843,2848,1541],{"class":853},[843,2850,1116],{"class":860},[843,2852,1546],{"class":853},[843,2854,892],{"class":849},[843,2856,895],{"class":853},[843,2858,2360],{"class":898},[843,2860,901],{"class":853},[843,2862,2863],{"class":845,"line":867},[843,2864,908],{"emptyLinePlaceholder":907},[843,2866,2867,2869,2871,2873,2875,2877,2879,2881,2883,2885,2887,2889,2891],{"class":845,"line":875},[843,2868,2791],{"class":860},[843,2870,1255],{"class":853},[843,2872,2796],{"class":1115},[843,2874,1119],{"class":860},[843,2876,2801],{"class":1115},[843,2878,1119],{"class":860},[843,2880,2514],{"class":853},[843,2882,2194],{"class":927},[843,2884,931],{"class":853},[843,2886,1116],{"class":1115},[843,2888,2523],{"class":860},[843,2890,889],{"class":853},[843,2892,2818],{"class":860},[833,2894,2896],{"className":835,"code":2895,"filename":285,"language":838,"meta":2743,"style":839},"await app.register(evlog, { drain: createMyServiceDrain() })\n",[656,2897,2898],{"__ignoreMap":839},[843,2899,2900,2903,2906,2908,2911,2914,2916,2918,2920,2922,2924,2926,2928],{"class":845,"line":846},[843,2901,2902],{"class":849},"await",[843,2904,2905],{"class":860}," app",[843,2907,1255],{"class":853},[843,2909,2910],{"class":1115},"register",[843,2912,2913],{"class":860},"(evlog",[843,2915,1019],{"class":853},[843,2917,1541],{"class":853},[843,2919,2194],{"class":927},[843,2921,931],{"class":853},[843,2923,1116],{"class":1115},[843,2925,2523],{"class":860},[843,2927,889],{"class":853},[843,2929,1237],{"class":860},[833,2931,2933],{"className":835,"code":2932,"filename":290,"language":838,"meta":2743,"style":839},"import { evlog } from 'evlog\u002Felysia'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\napp.use(evlog({ drain: createMyServiceDrain() }))\n",[656,2934,2935,2954,2972,2976],{"__ignoreMap":839},[843,2936,2937,2939,2941,2943,2945,2947,2949,2952],{"class":845,"line":846},[843,2938,850],{"class":849},[843,2940,1541],{"class":853},[843,2942,2654],{"class":860},[843,2944,1546],{"class":853},[843,2946,892],{"class":849},[843,2948,895],{"class":853},[843,2950,2951],{"class":898},"evlog\u002Felysia",[843,2953,901],{"class":853},[843,2955,2956,2958,2960,2962,2964,2966,2968,2970],{"class":845,"line":857},[843,2957,850],{"class":849},[843,2959,1541],{"class":853},[843,2961,1116],{"class":860},[843,2963,1546],{"class":853},[843,2965,892],{"class":849},[843,2967,895],{"class":853},[843,2969,2360],{"class":898},[843,2971,901],{"class":853},[843,2973,2974],{"class":845,"line":867},[843,2975,908],{"emptyLinePlaceholder":907},[843,2977,2978,2980,2982,2984,2986,2988,2990,2992,2994,2996,2998,3000,3002],{"class":845,"line":875},[843,2979,2791],{"class":860},[843,2981,1255],{"class":853},[843,2983,2796],{"class":1115},[843,2985,1119],{"class":860},[843,2987,2801],{"class":1115},[843,2989,1119],{"class":860},[843,2991,2514],{"class":853},[843,2993,2194],{"class":927},[843,2995,931],{"class":853},[843,2997,1116],{"class":1115},[843,2999,2523],{"class":860},[843,3001,889],{"class":853},[843,3003,2818],{"class":860},[833,3005,3008],{"className":835,"code":3006,"filename":270,"language":838,"meta":3007,"style":839},"EvlogModule.forRoot({ drain: createMyServiceDrain() })\n","src\u002Fapp.module.ts",[656,3009,3010],{"__ignoreMap":839},[843,3011,3012,3015,3017,3020,3022,3024,3026,3028,3030,3032,3034],{"class":845,"line":846},[843,3013,3014],{"class":860},"EvlogModule",[843,3016,1255],{"class":853},[843,3018,3019],{"class":1115},"forRoot",[843,3021,1119],{"class":860},[843,3023,2514],{"class":853},[843,3025,2194],{"class":927},[843,3027,931],{"class":853},[843,3029,1116],{"class":1115},[843,3031,2523],{"class":860},[843,3033,889],{"class":853},[843,3035,1237],{"class":860},[833,3037,3040],{"className":835,"code":3038,"filename":314,"language":838,"meta":3039,"style":839},"import { withEvlog } from 'evlog\u002Forpc'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\nconst handler = withEvlog(new RPCHandler(router), { drain: createMyServiceDrain() })\n","server\u002Forpc.ts",[656,3041,3042,3061,3079,3083],{"__ignoreMap":839},[843,3043,3044,3046,3048,3050,3052,3054,3056,3059],{"class":845,"line":846},[843,3045,850],{"class":849},[843,3047,1541],{"class":853},[843,3049,2378],{"class":860},[843,3051,1546],{"class":853},[843,3053,892],{"class":849},[843,3055,895],{"class":853},[843,3057,3058],{"class":898},"evlog\u002Forpc",[843,3060,901],{"class":853},[843,3062,3063,3065,3067,3069,3071,3073,3075,3077],{"class":845,"line":857},[843,3064,850],{"class":849},[843,3066,1541],{"class":853},[843,3068,1116],{"class":860},[843,3070,1546],{"class":853},[843,3072,892],{"class":849},[843,3074,895],{"class":853},[843,3076,2360],{"class":898},[843,3078,901],{"class":853},[843,3080,3081],{"class":845,"line":867},[843,3082,908],{"emptyLinePlaceholder":907},[843,3084,3085,3087,3090,3092,3094,3096,3099,3102,3105,3107,3109,3111,3113,3115,3117,3119],{"class":845,"line":875},[843,3086,973],{"class":914},[843,3088,3089],{"class":860}," handler ",[843,3091,995],{"class":853},[843,3093,2378],{"class":1115},[843,3095,1119],{"class":860},[843,3097,3098],{"class":853},"new",[843,3100,3101],{"class":1115}," RPCHandler",[843,3103,3104],{"class":860},"(router)",[843,3106,1019],{"class":853},[843,3108,1541],{"class":853},[843,3110,2194],{"class":927},[843,3112,931],{"class":853},[843,3114,1116],{"class":1115},[843,3116,2523],{"class":860},[843,3118,889],{"class":853},[843,3120,1237],{"class":860},[833,3122,3125],{"className":835,"code":3123,"filename":300,"language":838,"meta":3124,"style":839},"import { withEvlog } from 'evlog\u002Fworkers'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\nexport default withEvlog(handler, { drain: createMyServiceDrain() })\n","src\u002Fworker.ts",[656,3126,3127,3146,3164,3168],{"__ignoreMap":839},[843,3128,3129,3131,3133,3135,3137,3139,3141,3144],{"class":845,"line":846},[843,3130,850],{"class":849},[843,3132,1541],{"class":853},[843,3134,2378],{"class":860},[843,3136,1546],{"class":853},[843,3138,892],{"class":849},[843,3140,895],{"class":853},[843,3142,3143],{"class":898},"evlog\u002Fworkers",[843,3145,901],{"class":853},[843,3147,3148,3150,3152,3154,3156,3158,3160,3162],{"class":845,"line":857},[843,3149,850],{"class":849},[843,3151,1541],{"class":853},[843,3153,1116],{"class":860},[843,3155,1546],{"class":853},[843,3157,892],{"class":849},[843,3159,895],{"class":853},[843,3161,2360],{"class":898},[843,3163,901],{"class":853},[843,3165,3166],{"class":845,"line":867},[843,3167,908],{"emptyLinePlaceholder":907},[843,3169,3170,3172,3174,3176,3179,3181,3183,3185,3187,3189,3191,3193],{"class":845,"line":875},[843,3171,1109],{"class":849},[843,3173,2149],{"class":849},[843,3175,2378],{"class":1115},[843,3177,3178],{"class":860},"(handler",[843,3180,1019],{"class":853},[843,3182,1541],{"class":853},[843,3184,2194],{"class":927},[843,3186,931],{"class":853},[843,3188,1116],{"class":1115},[843,3190,2523],{"class":860},[843,3192,889],{"class":853},[843,3194,1237],{"class":860},[833,3196,3198],{"className":835,"code":3197,"filename":305,"language":838,"meta":839,"style":839},"import { initLogger } from 'evlog'\nimport { createMyServiceDrain } from '.\u002Fmy-drain'\n\ninitLogger({ drain: createMyServiceDrain() })\n",[656,3199,3200,3219,3237,3241],{"__ignoreMap":839},[843,3201,3202,3204,3206,3209,3211,3213,3215,3217],{"class":845,"line":846},[843,3203,850],{"class":849},[843,3205,1541],{"class":853},[843,3207,3208],{"class":860}," initLogger",[843,3210,1546],{"class":853},[843,3212,892],{"class":849},[843,3214,895],{"class":853},[843,3216,2801],{"class":898},[843,3218,901],{"class":853},[843,3220,3221,3223,3225,3227,3229,3231,3233,3235],{"class":845,"line":857},[843,3222,850],{"class":849},[843,3224,1541],{"class":853},[843,3226,1116],{"class":860},[843,3228,1546],{"class":853},[843,3230,892],{"class":849},[843,3232,895],{"class":853},[843,3234,2360],{"class":898},[843,3236,901],{"class":853},[843,3238,3239],{"class":845,"line":867},[843,3240,908],{"emptyLinePlaceholder":907},[843,3242,3243,3246,3248,3250,3252,3254,3256,3258,3260],{"class":845,"line":875},[843,3244,3245],{"class":1115},"initLogger",[843,3247,1119],{"class":860},[843,3249,2514],{"class":853},[843,3251,2194],{"class":927},[843,3253,931],{"class":853},[843,3255,1116],{"class":1115},[843,3257,2523],{"class":860},[843,3259,889],{"class":853},[843,3261,1237],{"class":860},[614,3263,3264,3265,3269],{},"For production, wrap it once in ",[623,3266,3267],{"href":540},[656,3268,794],{}," so events are batched and retried.",[810,3271,3273],{"id":3272},"filter-or-transform-before-sending","Filter or transform before sending",[614,3275,3276,3278,3279,3282,3283,3285],{},[656,3277,827],{}," receives the full batch of ",[656,3280,3281],{},"WideEvent[]"," plus the resolved config. Filter or transform inline, and returning ",[656,3284,772],{}," is a clean opt-out for that batch:",[833,3287,3289],{"className":835,"code":3288,"language":838,"meta":839,"style":839},"encode: (events, cfg) => {\n  const filtered = events.filter(e => e.level === 'error' && e.path !== '\u002Fhealth')\n  if (filtered.length === 0) return null\n\n  const payload = filtered.map(e => ({\n    ts: new Date(e.timestamp).getTime(),\n    severity: e.level.toUpperCase(),\n    attributes: { method: e.method, path: e.path, status: e.status, durationMs: e.durationMs },\n  }))\n\n  return {\n    url: `${cfg.endpoint}\u002Fv1\u002Fpush`,\n    headers: { 'Content-Type': 'application\u002Fjson' },\n    body: JSON.stringify(payload),\n  }\n}\n",[656,3290,3291,3312,3372,3399,3403,3428,3460,3482,3546,3552,3556,3562,3586,3611,3633,3638],{"__ignoreMap":839},[843,3292,3293,3296,3298,3300,3302,3304,3306,3308,3310],{"class":845,"line":846},[843,3294,3295],{"class":918},"encode",[843,3297,931],{"class":853},[843,3299,1246],{"class":853},[843,3301,1332],{"class":1122},[843,3303,1019],{"class":853},[843,3305,1202],{"class":1122},[843,3307,1339],{"class":853},[843,3309,1191],{"class":914},[843,3311,854],{"class":853},[843,3313,3314,3317,3320,3322,3324,3326,3329,3331,3333,3335,3337,3339,3341,3344,3346,3348,3350,3353,3355,3357,3360,3363,3365,3368,3370],{"class":845,"line":857},[843,3315,3316],{"class":914},"  const",[843,3318,3319],{"class":860}," filtered",[843,3321,1205],{"class":853},[843,3323,1851],{"class":860},[843,3325,1255],{"class":853},[843,3327,3328],{"class":1115},"filter",[843,3330,1119],{"class":927},[843,3332,1860],{"class":1122},[843,3334,1191],{"class":914},[843,3336,1883],{"class":860},[843,3338,1255],{"class":853},[843,3340,1902],{"class":860},[843,3342,3343],{"class":853}," ===",[843,3345,895],{"class":853},[843,3347,1273],{"class":898},[843,3349,1016],{"class":853},[843,3351,3352],{"class":853}," &&",[843,3354,1883],{"class":860},[843,3356,1255],{"class":853},[843,3358,3359],{"class":860},"path",[843,3361,3362],{"class":853}," !==",[843,3364,895],{"class":853},[843,3366,3367],{"class":898},"\u002Fhealth",[843,3369,1016],{"class":853},[843,3371,1237],{"class":927},[843,3373,3374,3377,3379,3382,3384,3387,3389,3392,3394,3397],{"class":845,"line":867},[843,3375,3376],{"class":849},"  if",[843,3378,1246],{"class":927},[843,3380,3381],{"class":860},"filtered",[843,3383,1255],{"class":853},[843,3385,3386],{"class":860},"length",[843,3388,3343],{"class":853},[843,3390,3391],{"class":1944}," 0",[843,3393,1260],{"class":927},[843,3395,3396],{"class":849},"return",[843,3398,1293],{"class":853},[843,3400,3401],{"class":845,"line":875},[843,3402,908],{"emptyLinePlaceholder":907},[843,3404,3405,3407,3410,3412,3414,3416,3418,3420,3422,3424,3426],{"class":845,"line":886},[843,3406,3316],{"class":914},[843,3408,3409],{"class":860}," payload",[843,3411,1205],{"class":853},[843,3413,3319],{"class":860},[843,3415,1255],{"class":853},[843,3417,104],{"class":1115},[843,3419,1119],{"class":927},[843,3421,1860],{"class":1122},[843,3423,1191],{"class":914},[843,3425,1246],{"class":927},[843,3427,1157],{"class":853},[843,3429,3430,3433,3435,3438,3441,3443,3445,3447,3449,3451,3453,3456,3458],{"class":845,"line":904},[843,3431,3432],{"class":927},"    ts",[843,3434,931],{"class":853},[843,3436,3437],{"class":853}," new",[843,3439,3440],{"class":1115}," Date",[843,3442,1119],{"class":927},[843,3444,1860],{"class":860},[843,3446,1255],{"class":853},[843,3448,1936],{"class":860},[843,3450,1339],{"class":927},[843,3452,1255],{"class":853},[843,3454,3455],{"class":1115},"getTime",[843,3457,2431],{"class":927},[843,3459,864],{"class":853},[843,3461,3462,3465,3467,3469,3471,3473,3475,3478,3480],{"class":845,"line":911},[843,3463,3464],{"class":927},"    severity",[843,3466,931],{"class":853},[843,3468,1883],{"class":860},[843,3470,1255],{"class":853},[843,3472,1902],{"class":860},[843,3474,1255],{"class":853},[843,3476,3477],{"class":1115},"toUpperCase",[843,3479,2431],{"class":927},[843,3481,864],{"class":853},[843,3483,3484,3487,3489,3491,3494,3496,3498,3500,3503,3505,3508,3510,3512,3514,3516,3518,3521,3523,3525,3527,3530,3532,3535,3537,3539,3541,3544],{"class":845,"line":924},[843,3485,3486],{"class":927},"    attributes",[843,3488,931],{"class":853},[843,3490,1541],{"class":853},[843,3492,3493],{"class":927}," method",[843,3495,931],{"class":853},[843,3497,1883],{"class":860},[843,3499,1255],{"class":853},[843,3501,3502],{"class":860},"method",[843,3504,1019],{"class":853},[843,3506,3507],{"class":927}," path",[843,3509,931],{"class":853},[843,3511,1883],{"class":860},[843,3513,1255],{"class":853},[843,3515,3359],{"class":860},[843,3517,1019],{"class":853},[843,3519,3520],{"class":927}," status",[843,3522,931],{"class":853},[843,3524,1883],{"class":860},[843,3526,1255],{"class":853},[843,3528,3529],{"class":860},"status",[843,3531,1019],{"class":853},[843,3533,3534],{"class":927}," durationMs",[843,3536,931],{"class":853},[843,3538,1883],{"class":860},[843,3540,1255],{"class":853},[843,3542,3543],{"class":860},"durationMs",[843,3545,1092],{"class":853},[843,3547,3548,3550],{"class":845,"line":937},[843,3549,1488],{"class":853},[843,3551,2818],{"class":927},[843,3553,3554],{"class":845,"line":948},[843,3555,908],{"emptyLinePlaceholder":907},[843,3557,3558,3560],{"class":845,"line":959},[843,3559,1143],{"class":849},[843,3561,854],{"class":853},[843,3563,3564,3567,3569,3571,3573,3575,3577,3579,3582,3584],{"class":845,"line":965},[843,3565,3566],{"class":927},"    url",[843,3568,931],{"class":853},[843,3570,1356],{"class":853},[843,3572,1252],{"class":860},[843,3574,1255],{"class":853},[843,3576,750],{"class":860},[843,3578,889],{"class":853},[843,3580,3581],{"class":898},"\u002Fv1\u002Fpush",[843,3583,1380],{"class":853},[843,3585,864],{"class":853},[843,3587,3588,3591,3593,3595,3597,3599,3601,3603,3605,3607,3609],{"class":845,"line":970},[843,3589,3590],{"class":927},"    headers",[843,3592,931],{"class":853},[843,3594,1541],{"class":853},[843,3596,895],{"class":853},[843,3598,1401],{"class":927},[843,3600,1016],{"class":853},[843,3602,931],{"class":853},[843,3604,895],{"class":853},[843,3606,1410],{"class":898},[843,3608,1016],{"class":853},[843,3610,1092],{"class":853},[843,3612,3613,3616,3618,3620,3622,3624,3626,3629,3631],{"class":845,"line":1001},[843,3614,3615],{"class":927},"    body",[843,3617,931],{"class":853},[843,3619,1459],{"class":860},[843,3621,1255],{"class":853},[843,3623,1464],{"class":1115},[843,3625,1119],{"class":927},[843,3627,3628],{"class":860},"payload",[843,3630,1339],{"class":927},[843,3632,864],{"class":853},[843,3634,3635],{"class":845,"line":1043},[843,3636,3637],{"class":853},"  }\n",[843,3639,3640],{"class":845,"line":1077},[843,3641,962],{"class":853},[810,3643,3645,3647],{"id":3644},"definedrain-non-http-transports",[656,3646,680],{}," (non-HTTP transports)",[614,3649,3650,3651,3653],{},"If your destination requires gRPC, a vendor SDK, a queue client, a WebSocket, or a raw socket, drop one level lower with ",[656,3652,680],{},". You own the transport; the toolkit still gives you config resolution, error isolation, and a consistent shape.",[833,3655,3657],{"className":835,"code":3656,"language":838,"meta":839,"style":839},"import { defineDrain } from 'evlog\u002Ftoolkit'\n\nexport const createCustomTransportDrain = () =>\n  defineDrain\u003C{ apiKey: string }>({\n    name: 'custom',\n    resolve: async () => ({ apiKey: process.env.MY_KEY! }),\n    send: async (events, cfg) => {\n      await myVendorSdk.publish(events, { token: cfg.apiKey })\n    },\n  })\n",[656,3658,3659,3678,3682,3698,3718,3733,3772,3795,3830,3834],{"__ignoreMap":839},[843,3660,3661,3663,3665,3668,3670,3672,3674,3676],{"class":845,"line":846},[843,3662,850],{"class":849},[843,3664,1541],{"class":853},[843,3666,3667],{"class":860}," defineDrain",[843,3669,1546],{"class":853},[843,3671,892],{"class":849},[843,3673,895],{"class":853},[843,3675,686],{"class":898},[843,3677,901],{"class":853},[843,3679,3680],{"class":845,"line":857},[843,3681,908],{"emptyLinePlaceholder":907},[843,3683,3684,3686,3688,3691,3693,3695],{"class":845,"line":867},[843,3685,1109],{"class":849},[843,3687,2373],{"class":914},[843,3689,3690],{"class":860}," createCustomTransportDrain ",[843,3692,995],{"class":853},[843,3694,1188],{"class":853},[843,3696,3697],{"class":914}," =>\n",[843,3699,3700,3703,3705,3708,3710,3712,3714,3716],{"class":845,"line":875},[843,3701,3702],{"class":1115},"  defineDrain",[843,3704,1606],{"class":853},[843,3706,3707],{"class":927}," apiKey",[843,3709,931],{"class":853},[843,3711,1583],{"class":918},[843,3713,1623],{"class":853},[843,3715,1119],{"class":860},[843,3717,1157],{"class":853},[843,3719,3720,3722,3724,3726,3729,3731],{"class":845,"line":886},[843,3721,1163],{"class":927},[843,3723,931],{"class":853},[843,3725,895],{"class":853},[843,3727,3728],{"class":898},"custom",[843,3730,1016],{"class":853},[843,3732,864],{"class":853},[843,3734,3735,3737,3739,3741,3743,3745,3747,3749,3751,3753,3755,3757,3759,3761,3764,3766,3768,3770],{"class":845,"line":904},[843,3736,1180],{"class":1115},[843,3738,931],{"class":853},[843,3740,1185],{"class":914},[843,3742,1188],{"class":853},[843,3744,1191],{"class":914},[843,3746,1246],{"class":860},[843,3748,2514],{"class":853},[843,3750,3707],{"class":927},[843,3752,931],{"class":853},[843,3754,1676],{"class":860},[843,3756,1255],{"class":853},[843,3758,1681],{"class":860},[843,3760,1255],{"class":853},[843,3762,3763],{"class":860},"MY_KEY",[843,3765,1249],{"class":853},[843,3767,1546],{"class":853},[843,3769,1339],{"class":860},[843,3771,864],{"class":853},[843,3773,3774,3777,3779,3781,3783,3785,3787,3789,3791,3793],{"class":845,"line":911},[843,3775,3776],{"class":1115},"    send",[843,3778,931],{"class":853},[843,3780,1185],{"class":914},[843,3782,1246],{"class":853},[843,3784,1332],{"class":1122},[843,3786,1019],{"class":853},[843,3788,1202],{"class":1122},[843,3790,1339],{"class":853},[843,3792,1191],{"class":914},[843,3794,854],{"class":853},[843,3796,3797,3800,3803,3805,3808,3810,3812,3814,3816,3818,3820,3822,3824,3826,3828],{"class":845,"line":924},[843,3798,3799],{"class":849},"      await",[843,3801,3802],{"class":860}," myVendorSdk",[843,3804,1255],{"class":853},[843,3806,3807],{"class":1115},"publish",[843,3809,1119],{"class":927},[843,3811,1332],{"class":860},[843,3813,1019],{"class":853},[843,3815,1541],{"class":853},[843,3817,1588],{"class":927},[843,3819,931],{"class":853},[843,3821,1202],{"class":860},[843,3823,1255],{"class":853},[843,3825,746],{"class":860},[843,3827,1546],{"class":853},[843,3829,1237],{"class":927},[843,3831,3832],{"class":845,"line":937},[843,3833,1319],{"class":853},[843,3835,3836,3838],{"class":845,"line":948},[843,3837,1488],{"class":853},[843,3839,1237],{"class":860},[614,3841,3842,3843,3846,3847,3849,3850,3852,3853,3856,3857,3860,3861,3863],{},"Let ",[656,3844,3845],{},"send"," throw on failure. ",[656,3848,680],{}," handles the isolation: a direct call swallows the error and logs it with your drain's name, while the ",[656,3851,1517],{}," variant on the returned function rejects, which is how ",[623,3854,3855],{"href":540},"the pipeline","'s retry and ",[656,3858,3859],{},"onDropped"," observe failures. A ",[656,3862,3845],{}," that swallows its own errors makes your drain unretryable.",[810,3865,3867],{"id":3866},"what-a-draincontext-carries","What a DrainContext carries",[614,3869,3870,3871,3873,3874,3877],{},"When evlog calls your drain through ",[656,3872,2187],{},", it passes a ",[656,3875,3876],{},"DrainContext"," per event:",[833,3879,3882],{"className":835,"code":3880,"filename":3881,"language":838,"meta":839,"style":839},"interface DrainContext {\n  \u002F** The complete wide event with all accumulated context *\u002F\n  event: WideEvent\n\n  \u002F** Request metadata *\u002F\n  request?: {\n    method: string\n    path: string\n    requestId: string\n  }\n\n  \u002F** Safe HTTP headers (sensitive headers filtered) *\u002F\n  headers?: Record\u003Cstring, string>\n}\n\ninterface WideEvent {\n  timestamp: string\n  level: 'debug' | 'info' | 'warn' | 'error'\n  service: string\n  environment?: string\n  version?: string\n  region?: string\n  commitHash?: string\n  requestId?: string\n  \u002F\u002F ... plus all fields added via log.set()\n  [key: string]: unknown\n}\n","types.ts",[656,3883,3884,3893,3899,3909,3913,3918,3927,3936,3945,3954,3958,3962,3967,3989,3993,3997,4006,4015,4056,4064,4073,4082,4091,4100,4109,4114,4134],{"__ignoreMap":839},[843,3885,3886,3888,3891],{"class":845,"line":846},[843,3887,915],{"class":914},[843,3889,3890],{"class":918}," DrainContext",[843,3892,854],{"class":853},[843,3894,3895],{"class":845,"line":857},[843,3896,3898],{"class":3897},"sHwdD","  \u002F** The complete wide event with all accumulated context *\u002F\n",[843,3900,3901,3904,3906],{"class":845,"line":867},[843,3902,3903],{"class":927},"  event",[843,3905,931],{"class":853},[843,3907,3908],{"class":918}," WideEvent\n",[843,3910,3911],{"class":845,"line":875},[843,3912,908],{"emptyLinePlaceholder":907},[843,3914,3915],{"class":845,"line":886},[843,3916,3917],{"class":3897},"  \u002F** Request metadata *\u002F\n",[843,3919,3920,3923,3925],{"class":845,"line":904},[843,3921,3922],{"class":927},"  request",[843,3924,943],{"class":853},[843,3926,854],{"class":853},[843,3928,3929,3932,3934],{"class":845,"line":911},[843,3930,3931],{"class":927},"    method",[843,3933,931],{"class":853},[843,3935,934],{"class":918},[843,3937,3938,3941,3943],{"class":845,"line":924},[843,3939,3940],{"class":927},"    path",[843,3942,931],{"class":853},[843,3944,934],{"class":918},[843,3946,3947,3950,3952],{"class":845,"line":937},[843,3948,3949],{"class":927},"    requestId",[843,3951,931],{"class":853},[843,3953,934],{"class":918},[843,3955,3956],{"class":845,"line":948},[843,3957,3637],{"class":853},[843,3959,3960],{"class":845,"line":959},[843,3961,908],{"emptyLinePlaceholder":907},[843,3963,3964],{"class":845,"line":965},[843,3965,3966],{"class":3897},"  \u002F** Safe HTTP headers (sensitive headers filtered) *\u002F\n",[843,3968,3969,3972,3974,3977,3979,3982,3984,3986],{"class":845,"line":970},[843,3970,3971],{"class":927},"  headers",[843,3973,943],{"class":853},[843,3975,3976],{"class":918}," Record",[843,3978,983],{"class":853},[843,3980,3981],{"class":918},"string",[843,3983,1019],{"class":853},[843,3985,1583],{"class":918},[843,3987,3988],{"class":853},">\n",[843,3990,3991],{"class":845,"line":1001},[843,3992,962],{"class":853},[843,3994,3995],{"class":845,"line":1043},[843,3996,908],{"emptyLinePlaceholder":907},[843,3998,3999,4001,4004],{"class":845,"line":1077},[843,4000,915],{"class":914},[843,4002,4003],{"class":918}," WideEvent",[843,4005,854],{"class":853},[843,4007,4008,4011,4013],{"class":845,"line":1095},[843,4009,4010],{"class":927},"  timestamp",[843,4012,931],{"class":853},[843,4014,934],{"class":918},[843,4016,4017,4020,4022,4024,4027,4029,4032,4034,4037,4039,4041,4043,4046,4048,4050,4052,4054],{"class":845,"line":1101},[843,4018,4019],{"class":927},"  level",[843,4021,931],{"class":853},[843,4023,895],{"class":853},[843,4025,4026],{"class":898},"debug",[843,4028,1016],{"class":853},[843,4030,4031],{"class":853}," |",[843,4033,895],{"class":853},[843,4035,4036],{"class":898},"info",[843,4038,1016],{"class":853},[843,4040,4031],{"class":853},[843,4042,895],{"class":853},[843,4044,4045],{"class":898},"warn",[843,4047,1016],{"class":853},[843,4049,4031],{"class":853},[843,4051,895],{"class":853},[843,4053,1273],{"class":898},[843,4055,901],{"class":853},[843,4057,4058,4060,4062],{"class":845,"line":1106},[843,4059,2408],{"class":927},[843,4061,931],{"class":853},[843,4063,934],{"class":918},[843,4065,4066,4069,4071],{"class":845,"line":1140},[843,4067,4068],{"class":927},"  environment",[843,4070,943],{"class":853},[843,4072,934],{"class":918},[843,4074,4075,4078,4080],{"class":845,"line":1160},[843,4076,4077],{"class":927},"  version",[843,4079,943],{"class":853},[843,4081,934],{"class":918},[843,4083,4084,4087,4089],{"class":845,"line":1177},[843,4085,4086],{"class":927},"  region",[843,4088,943],{"class":853},[843,4090,934],{"class":918},[843,4092,4093,4096,4098],{"class":845,"line":1196},[843,4094,4095],{"class":927},"  commitHash",[843,4097,943],{"class":853},[843,4099,934],{"class":918},[843,4101,4102,4105,4107],{"class":845,"line":1240},[843,4103,4104],{"class":927},"  requestId",[843,4106,943],{"class":853},[843,4108,934],{"class":918},[843,4110,4111],{"class":845,"line":1265},[843,4112,4113],{"class":3897},"  \u002F\u002F ... plus all fields added via log.set()\n",[843,4115,4116,4119,4122,4124,4126,4129,4131],{"class":845,"line":1287},[843,4117,4118],{"class":860},"  [",[843,4120,4121],{"class":1122},"key",[843,4123,931],{"class":853},[843,4125,1583],{"class":918},[843,4127,4128],{"class":860},"]",[843,4130,931],{"class":853},[843,4132,4133],{"class":918}," unknown\n",[843,4135,4136],{"class":845,"line":1296},[843,4137,962],{"class":853},[614,4139,4140,4141,4143,4144,4147,4148,4150,4151,4154],{},"In the batched form your ",[656,4142,827],{}," \u002F ",[656,4145,4146],{},"send()"," receives, you get ",[656,4149,3281],{}," directly (the toolkit unwraps ",[656,4152,4153],{},"event"," from each context).",[810,4156,4158],{"id":4157},"reach-for-a-toolkit-helper","Reach for a toolkit helper",[614,4160,4161,4163],{},[656,4162,686],{}," exposes the same helpers every built-in adapter uses. The ones relevant to drains:",[631,4165,4166,4176],{},[634,4167,4168],{},[637,4169,4170,4173],{},[640,4171,4172],{},"Export",[640,4174,4175],{},"Purpose",[647,4177,4178,4188,4198,4210,4220,4233,4243,4257],{},[637,4179,4180,4185],{},[652,4181,4182],{},[656,4183,4184],{},"defineHttpDrain(spec)",[652,4186,4187],{},"The HTTP recipe — auto retries, timeouts, identity headers, error isolation",[637,4189,4190,4195],{},[652,4191,4192],{},[656,4193,4194],{},"defineDrain(spec)",[652,4196,4197],{},"Same contract for non-HTTP transports",[637,4199,4200,4205],{},[652,4201,4202],{},[656,4203,4204],{},"resolveAdapterConfig(ns, fields, overrides)",[652,4206,4207,4208,740],{},"Standard config priority chain (overrides → ",[656,4209,739],{},[637,4211,4212,4217],{},[652,4213,4214],{},[656,4215,4216],{},"httpPost(opts)",[652,4218,4219],{},"The retried POST helper used by every built-in HTTP adapter — handles timeout, retries, redacted error messages",[637,4221,4222,4227],{},[652,4223,4224],{},[656,4225,4226],{},"composeDrains(drains)",[652,4228,4229,4230,1339],{},"Combine multiple drains into one (errors isolated, runs concurrently with ",[656,4231,4232],{},"Promise.allSettled",[637,4234,4235,4240],{},[652,4236,4237],{},[656,4238,4239],{},"toTypedAttributeValue(value)",[652,4241,4242],{},"Convert any value to the typed attribute shape used by Axiom \u002F Sentry",[637,4244,4245,4250],{},[652,4246,4247],{},[656,4248,4249],{},"toOtlpAttributeValue(value)",[652,4251,4252,4253,4256],{},"Convert any value to the OTLP ",[656,4254,4255],{},"AnyValue"," shape (used by OTLP \u002F HyperDX \u002F PostHog logs)",[637,4258,4259,4267],{},[652,4260,4261,755,4264],{},[656,4262,4263],{},"OTEL_SEVERITY_NUMBER",[656,4265,4266],{},"OTEL_SEVERITY_TEXT",[652,4268,4269],{},"OTEL log severity tables",[810,4271,4273],{"id":4272},"identify-your-traffic-to-the-receiver","Identify your traffic to the receiver",[614,4275,4276,4278],{},[656,4277,667],{}," automatically tags every request with two headers so receivers can identify the traffic:",[631,4280,4281,4291],{},[634,4282,4283],{},[637,4284,4285,4288],{},[640,4286,4287],{},"Header",[640,4289,4290],{},"Value",[647,4292,4293,4306],{},[637,4294,4295,4300],{},[652,4296,4297],{},[656,4298,4299],{},"User-Agent",[652,4301,4302,4305],{},[656,4303,4304],{},"evlog\u002F\u003Cversion>"," (Node \u002F server runtimes only — browsers strip this header)",[637,4307,4308,4313],{},[652,4309,4310],{},[656,4311,4312],{},"X-Evlog-Source",[652,4314,4315,4316,4319],{},"The drain ",[656,4317,4318],{},"name"," you provided",[614,4321,4322,4323,4326,4327,1255],{},"If you build a drain on top of ",[656,4324,4325],{},"httpPost"," directly, you can override or suppress them. See ",[623,4328,529],{"href":530},[810,4330,4332],{"id":4331},"errors-are-already-handled-for-you","Errors are already handled for you",[614,4334,4335,4337],{},[656,4336,667],{}," enforces every best practice automatically:",[2012,4339,4340,4350,4360,4368],{},[701,4341,4342,4345,4346,4349],{},[618,4343,4344],{},"Never throws",": failures are caught and logged with the ",[656,4347,4348],{},"[evlog\u002F\u003Cname>]"," prefix.",[701,4351,4352,4355,4356,4359],{},[618,4353,4354],{},"Retries",": defaults to 2 attempts on transient errors (configurable via ",[656,4357,4358],{},"retries",").",[701,4361,4362,4365,4366,4359],{},[618,4363,4364],{},"Timeouts",": defaults to 5000ms (configurable via ",[656,4367,758],{},[701,4369,4370,4373,4374,4376,4377,4379],{},[618,4371,4372],{},"Graceful degradation",": ",[656,4375,731],{}," returning ",[656,4378,772],{}," makes the drain a no-op.",[614,4381,4382,4383,4385],{},"If you fall back to ",[656,4384,680],{},", follow the same rules manually.",[810,4387,4389],{"id":4388},"publish-it-as-a-community-package","Publish it as a community package",[614,4391,4392],{},"Recommended structure for a community drain:",[833,4394,4399],{"className":4395,"code":4397,"language":4398,"meta":839},[4396],"language-text","my-evlog-drain\u002F\n├─ src\u002F\n│  ├─ drain.ts        # createMyDrain via defineHttpDrain\n│  └─ index.ts        # re-exports\n├─ test\u002F              # vitest, mock fetch\n├─ package.json       # peerDependency: \"evlog\"\n└─ README.md\n","text",[656,4400,4397],{"__ignoreMap":839},[614,4402,4403,4404,4406,4407,4410,4411,4414],{},"Add ",[656,4405,2801],{}," as a ",[656,4408,4409],{},"peerDependency"," (not a ",[656,4412,4413],{},"dependency","), so your package will not pull in a copy of evlog at install time.",[4416,4417,4420,4421,4426],"callout",{"color":4418,"icon":4419},"neutral","i-lucide-heart","Built something great? ",[623,4422,4425],{"href":4423,"rel":4424},"https:\u002F\u002Fgithub.com\u002Fevloghq\u002Fevlog\u002Fpulls",[803],"Open a PR"," to add a row to the Adapters table. The community will thank you.",[810,4428,4430],{"id":4429},"next-steps","Next steps",[698,4432,4433,4439,4447,4453,4459],{},[701,4434,4435,4438],{},[623,4436,4437],{"href":540},"Drain Pipeline",": wrap your drain in batch + retry + fanout for production",[701,4440,4441,4444,4445],{},[623,4442,4443],{"href":158},"Adapters Overview",": see how the built-in adapters use ",[656,4446,667],{},[701,4448,4449,4452],{},[623,4450,4451],{"href":522},"Custom Enrichers",": same toolkit shape for derived event fields",[701,4454,4455,4458],{},[623,4456,4457],{"href":500},"Custom Framework Integration",": same toolkit shape for HTTP frameworks",[701,4460,4461,4463],{},[623,4462,565],{"href":566},": security and production tips",[4465,4466,4467],"style",{},"html pre.shiki code .s7zQu, html code.shiki .s7zQu{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .sHdIc, html code.shiki .sHdIc{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#EEFFFF;--shiki-default-font-style:italic;--shiki-dark:#BABED8;--shiki-dark-font-style:italic}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}html pre.shiki code .sHwdD, html code.shiki .sHwdD{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}",{"title":839,"searchDepth":857,"depth":857,"links":4469},[4470,4474,4475,4476,4477,4479,4480,4481,4482,4483,4484],{"id":812,"depth":857,"text":4471,"children":4472},"defineHttpDrain (the HTTP recipe)",[4473],{"id":1522,"depth":867,"text":1523},{"id":2004,"depth":857,"text":2005},{"id":2084,"depth":857,"text":2085},{"id":3272,"depth":857,"text":3273},{"id":3644,"depth":857,"text":4478},"defineDrain (non-HTTP transports)",{"id":3866,"depth":857,"text":3867},{"id":4157,"depth":857,"text":4158},{"id":4272,"depth":857,"text":4273},{"id":4331,"depth":857,"text":4332},{"id":4388,"depth":857,"text":4389},{"id":4429,"depth":857,"text":4430},"Build a drain for any backend without a built-in adapter. Config resolution, retries, timeouts, and identity headers are handled for you.","md",[4488,4490,4492],{"label":4437,"icon":542,"to":540,"color":4418,"variant":4489},"subtle",{"label":4443,"icon":4491,"to":158,"color":4418,"variant":4489},"i-custom-plug",{"label":565,"icon":393,"to":566,"color":4418,"variant":4489},{},{"title":534,"icon":537},{"title":609,"description":4485},"xLyeGKOCxsUnIonmrSvEKRLoo6yXM_TTULXpuUJVXyg",[4498,4500],{"title":529,"path":530,"stem":531,"description":4499,"icon":532,"children":-1},"Every drain request carries User-Agent and X-Evlog-Source so receivers can triage the traffic. Override or suppress them when you need to.",{"title":539,"path":540,"stem":541,"description":4501,"icon":542,"children":-1},"The pipeline wraps every drain: it batches events, retries on failure, fans out to several destinations, and ships browser logs.",1791240220704]