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context","\u002Fcompare\u002Fconsola","8.compare\u002F5.consola",{"id":608,"title":300,"body":609,"description":3171,"extension":3172,"links":3173,"meta":3174,"navigation":3175,"path":301,"seo":3176,"stem":302,"__hash__":3177},"docs\u002F4.integrate\u002Fframeworks\u002F12.cloudflare-workers.md",{"type":610,"value":611,"toc":3156},"minimark",[612,621,639,686,690,695,766,770,1010,1033,1064,1067,1072,1480,1484,1496,1664,1704,1707,1710,2135,2200,2204,2210,2749,2752,2763,2767,2773,3056,3063,3067,3070,3099,3103,3117,3121,3152],[613,614,615,616,620],"p",{},"The ",[617,618,619],"code",{},"evlog\u002Fworkers"," adapter instruments Cloudflare Workers and Durable Objects with request-scoped loggers carrying Cloudflare-specific context.",[613,622,623,624,630,631,634,635,638],{},"Use ",[625,626,627],"strong",{},[617,628,629],{},"withEvlog"," to get the same middleware pipeline as every other framework integration: route filtering, redaction, enrich, tail sampling, plugins, drains, and automatic emit. Reach for ",[617,632,633],{},"defineWorkerFetch"," or ",[617,636,637],{},"createWorkersLogger"," when you'd rather own the emit yourself.",[640,641,644,647,672],"prompt",{":actions":642,"description":643,"icon":303},"[\"copy\",\"cursor\",\"claude\"]","Set up evlog in my Cloudflare Worker",[613,645,646],{},"Set up evlog in my Cloudflare Worker.",[648,649,650,654,657,660,666,669],"ul",{},[651,652,653],"li",{},"Install evlog: pnpm add evlog",[651,655,656],{},"Import initWorkersLogger and withEvlog from 'evlog\u002Fworkers'",[651,658,659],{},"Call initWorkersLogger({ env: { service: 'my-worker' } }) at the top level",[651,661,662,663,665],{},"Wrap the fetch handler with ",[625,664,629],{}," (recommended). It emits the wide event for you and accepts include\u002Fexclude, routes, redact, enrich, keep, plugins and drain",[651,667,668],{},"Use log.set() to accumulate context throughout the request",[651,670,671],{},"Only use defineWorkerFetch or createWorkersLogger if you want to call log.emit() yourself",[613,673,674,675,681,682],{},"Docs: ",[676,677,678],"a",{"href":678,"rel":679},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fframeworks\u002Fcloudflare-workers",[680],"nofollow","\nAdapters: ",[676,683,684],{"href":684,"rel":685},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fadapters\u002Foverview",[680],[687,688,25],"h2",{"id":689},"quick-start",[691,692,694],"h3",{"id":693},"_1-install","1. Install",[696,697,698,723,737,751],"code-group",{},[699,700,706],"pre",{"className":701,"code":702,"filename":703,"language":704,"meta":705,"style":705},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add evlog\n","pnpm","bash","",[617,707,708],{"__ignoreMap":705},[709,710,713,716,720],"span",{"class":711,"line":712},"line",1,[709,714,703],{"class":715},"sBMFI",[709,717,719],{"class":718},"sfazB"," add",[709,721,722],{"class":718}," evlog\n",[699,724,727],{"className":701,"code":725,"filename":726,"language":704,"meta":705,"style":705},"bun add evlog\n","bun",[617,728,729],{"__ignoreMap":705},[709,730,731,733,735],{"class":711,"line":712},[709,732,726],{"class":715},[709,734,719],{"class":718},[709,736,722],{"class":718},[699,738,741],{"className":701,"code":739,"filename":740,"language":704,"meta":705,"style":705},"yarn add evlog\n","yarn",[617,742,743],{"__ignoreMap":705},[709,744,745,747,749],{"class":711,"line":712},[709,746,740],{"class":715},[709,748,719],{"class":718},[709,750,722],{"class":718},[699,752,755],{"className":701,"code":753,"filename":754,"language":704,"meta":705,"style":705},"npm install evlog\n","npm",[617,756,757],{"__ignoreMap":705},[709,758,759,761,764],{"class":711,"line":712},[709,760,754],{"class":715},[709,762,763],{"class":718}," install",[709,765,722],{"class":718},[691,767,769],{"id":768},"_2-wrap-your-fetch-handler","2. Wrap your fetch handler",[699,771,776],{"className":772,"code":773,"filename":774,"language":775,"meta":705,"style":705},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { initWorkersLogger, withEvlog } from 'evlog\u002Fworkers'\n\ninitWorkersLogger({\n  env: { service: 'my-worker' },\n})\n\nexport default withEvlog(async (request, _env, _ctx, log) => {\n  log.set({ action: 'handle_request' })\n\n  \u002F\u002F ... your handler logic\n\n  return Response.json({ ok: true })\n})\n","src\u002Fworker.ts","typescript",[617,777,778,812,819,832,860,869,874,922,955,960,967,972,1003],{"__ignoreMap":705},[709,779,780,784,788,792,795,798,801,804,807,809],{"class":711,"line":712},[709,781,783],{"class":782},"s7zQu","import",[709,785,787],{"class":786},"sMK4o"," {",[709,789,791],{"class":790},"sTEyZ"," initWorkersLogger",[709,793,794],{"class":786},",",[709,796,797],{"class":790}," withEvlog",[709,799,800],{"class":786}," }",[709,802,803],{"class":782}," from",[709,805,806],{"class":786}," '",[709,808,619],{"class":718},[709,810,811],{"class":786},"'\n",[709,813,815],{"class":711,"line":814},2,[709,816,818],{"emptyLinePlaceholder":817},true,"\n",[709,820,822,826,829],{"class":711,"line":821},3,[709,823,825],{"class":824},"s2Zo4","initWorkersLogger",[709,827,828],{"class":790},"(",[709,830,831],{"class":786},"{\n",[709,833,835,839,842,844,847,849,851,854,857],{"class":711,"line":834},4,[709,836,838],{"class":837},"swJcz","  env",[709,840,841],{"class":786},":",[709,843,787],{"class":786},[709,845,846],{"class":837}," service",[709,848,841],{"class":786},[709,850,806],{"class":786},[709,852,853],{"class":718},"my-worker",[709,855,856],{"class":786},"'",[709,858,859],{"class":786}," },\n",[709,861,863,866],{"class":711,"line":862},5,[709,864,865],{"class":786},"}",[709,867,868],{"class":790},")\n",[709,870,872],{"class":711,"line":871},6,[709,873,818],{"emptyLinePlaceholder":817},[709,875,877,880,883,885,887,891,894,898,900,903,905,908,910,913,916,919],{"class":711,"line":876},7,[709,878,879],{"class":782},"export",[709,881,882],{"class":782}," default",[709,884,797],{"class":824},[709,886,828],{"class":790},[709,888,890],{"class":889},"spNyl","async",[709,892,893],{"class":786}," (",[709,895,897],{"class":896},"sHdIc","request",[709,899,794],{"class":786},[709,901,902],{"class":896}," _env",[709,904,794],{"class":786},[709,906,907],{"class":896}," _ctx",[709,909,794],{"class":786},[709,911,912],{"class":896}," log",[709,914,915],{"class":786},")",[709,917,918],{"class":889}," =>",[709,920,921],{"class":786}," {\n",[709,923,925,928,931,934,936,939,942,944,946,949,951,953],{"class":711,"line":924},8,[709,926,927],{"class":790},"  log",[709,929,930],{"class":786},".",[709,932,933],{"class":824},"set",[709,935,828],{"class":837},[709,937,938],{"class":786},"{",[709,940,941],{"class":837}," action",[709,943,841],{"class":786},[709,945,806],{"class":786},[709,947,948],{"class":718},"handle_request",[709,950,856],{"class":786},[709,952,800],{"class":786},[709,954,868],{"class":837},[709,956,958],{"class":711,"line":957},9,[709,959,818],{"emptyLinePlaceholder":817},[709,961,963],{"class":711,"line":962},10,[709,964,966],{"class":965},"sHwdD","  \u002F\u002F ... your handler logic\n",[709,968,970],{"class":711,"line":969},11,[709,971,818],{"emptyLinePlaceholder":817},[709,973,975,978,981,983,986,988,990,993,995,999,1001],{"class":711,"line":974},12,[709,976,977],{"class":782},"  return",[709,979,980],{"class":790}," Response",[709,982,930],{"class":786},[709,984,985],{"class":824},"json",[709,987,828],{"class":837},[709,989,938],{"class":786},[709,991,992],{"class":837}," ok",[709,994,841],{"class":786},[709,996,998],{"class":997},"sfNiH"," true",[709,1000,800],{"class":786},[709,1002,868],{"class":837},[709,1004,1006,1008],{"class":711,"line":1005},13,[709,1007,865],{"class":786},[709,1009,868],{"class":790},[613,1011,1012,1014,1015,1018,1019,1022,1023,1028,1029,1032],{},[617,1013,629],{}," emits one wide event per request when the handler returns, with no manual ",[617,1016,1017],{},"log.emit()",". It reads ",[617,1020,1021],{},"ExecutionContext"," off the third argument, so async ",[625,1024,1025],{},[617,1026,1027],{},"drain"," calls (PostHog, Axiom, …) are registered with ",[617,1030,1031],{},"waitUntil"," and stay alive after the response is returned. Streaming responses defer the emit until the body completes.",[613,1034,1035,1038,1039,1042,1043,1046,1047,1050,1051,1050,1054,1050,1056,1059,1060,1063],{},[617,1036,1037],{},"requestId"," comes from ",[617,1040,1041],{},"x-request-id"," when the caller sends one, falling back to ",[617,1044,1045],{},"cf-ray",". ",[617,1048,1049],{},"method",", ",[617,1052,1053],{},"path",[617,1055,1045],{},[617,1057,1058],{},"traceparent"," and the safe subset of ",[617,1061,1062],{},"request.cf"," are captured automatically.",[691,1065,351],{"id":1066},"options",[613,1068,1069,1071],{},[617,1070,629],{}," accepts the same options as every other framework integration:",[699,1073,1075],{"className":772,"code":1074,"filename":774,"language":775,"meta":705,"style":705},"import { initWorkersLogger, withEvlog } from 'evlog\u002Fworkers'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\ninitWorkersLogger({ env: { service: 'my-worker' } })\n\nexport default withEvlog(\n  async (request, env, ctx, log) => {\n    log.set({ route: 'checkout' })\n    return Response.json({ ok: true })\n  },\n  {\n    drain: createAxiomDrain(),\n    exclude: ['\u002Fhealth'],\n    routes: { '\u002Fapi\u002F**': { service: 'api' } },\n    redact: true,\n    enrich: (ctx) => {\n      ctx.event.colo = ctx.event.colo ?? 'unknown'\n    },\n    keep: (ctx) => {\n      if (ctx.duration > 1000) ctx.shouldKeep = true\n    },\n  },\n)\n",[617,1076,1077,1099,1119,1123,1154,1158,1169,1197,1226,1251,1256,1261,1276,1298,1334,1346,1365,1404,1410,1428,1465,1470,1475],{"__ignoreMap":705},[709,1078,1079,1081,1083,1085,1087,1089,1091,1093,1095,1097],{"class":711,"line":712},[709,1080,783],{"class":782},[709,1082,787],{"class":786},[709,1084,791],{"class":790},[709,1086,794],{"class":786},[709,1088,797],{"class":790},[709,1090,800],{"class":786},[709,1092,803],{"class":782},[709,1094,806],{"class":786},[709,1096,619],{"class":718},[709,1098,811],{"class":786},[709,1100,1101,1103,1105,1108,1110,1112,1114,1117],{"class":711,"line":814},[709,1102,783],{"class":782},[709,1104,787],{"class":786},[709,1106,1107],{"class":790}," createAxiomDrain",[709,1109,800],{"class":786},[709,1111,803],{"class":782},[709,1113,806],{"class":786},[709,1115,1116],{"class":718},"evlog\u002Faxiom",[709,1118,811],{"class":786},[709,1120,1121],{"class":711,"line":821},[709,1122,818],{"emptyLinePlaceholder":817},[709,1124,1125,1127,1129,1131,1134,1136,1138,1140,1142,1144,1146,1148,1150,1152],{"class":711,"line":834},[709,1126,825],{"class":824},[709,1128,828],{"class":790},[709,1130,938],{"class":786},[709,1132,1133],{"class":837}," env",[709,1135,841],{"class":786},[709,1137,787],{"class":786},[709,1139,846],{"class":837},[709,1141,841],{"class":786},[709,1143,806],{"class":786},[709,1145,853],{"class":718},[709,1147,856],{"class":786},[709,1149,800],{"class":786},[709,1151,800],{"class":786},[709,1153,868],{"class":790},[709,1155,1156],{"class":711,"line":862},[709,1157,818],{"emptyLinePlaceholder":817},[709,1159,1160,1162,1164,1166],{"class":711,"line":871},[709,1161,879],{"class":782},[709,1163,882],{"class":782},[709,1165,797],{"class":824},[709,1167,1168],{"class":790},"(\n",[709,1170,1171,1174,1176,1178,1180,1182,1184,1187,1189,1191,1193,1195],{"class":711,"line":876},[709,1172,1173],{"class":889},"  async",[709,1175,893],{"class":786},[709,1177,897],{"class":896},[709,1179,794],{"class":786},[709,1181,1133],{"class":896},[709,1183,794],{"class":786},[709,1185,1186],{"class":896}," 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return",[709,1232,980],{"class":790},[709,1234,930],{"class":786},[709,1236,985],{"class":824},[709,1238,828],{"class":837},[709,1240,938],{"class":786},[709,1242,992],{"class":837},[709,1244,841],{"class":786},[709,1246,998],{"class":997},[709,1248,800],{"class":786},[709,1250,868],{"class":837},[709,1252,1253],{"class":711,"line":962},[709,1254,1255],{"class":786},"  },\n",[709,1257,1258],{"class":711,"line":969},[709,1259,1260],{"class":786},"  {\n",[709,1262,1263,1266,1268,1270,1273],{"class":711,"line":974},[709,1264,1265],{"class":837},"    drain",[709,1267,841],{"class":786},[709,1269,1107],{"class":824},[709,1271,1272],{"class":790},"()",[709,1274,1275],{"class":786},",\n",[709,1277,1278,1281,1283,1286,1288,1291,1293,1296],{"class":711,"line":1005},[709,1279,1280],{"class":837},"    exclude",[709,1282,841],{"class":786},[709,1284,1285],{"class":790}," [",[709,1287,856],{"class":786},[709,1289,1290],{"class":718},"\u002Fhealth",[709,1292,856],{"class":786},[709,1294,1295],{"class":790},"]",[709,1297,1275],{"class":786},[709,1299,1301,1304,1306,1308,1310,1313,1315,1317,1319,1321,1323,1325,1328,1330,1332],{"class":711,"line":1300},14,[709,1302,1303],{"class":837},"    routes",[709,1305,841],{"class":786},[709,1307,787],{"class":786},[709,1309,806],{"class":786},[709,1311,1312],{"class":837},"\u002Fapi\u002F**",[709,1314,856],{"class":786},[709,1316,841],{"class":786},[709,1318,787],{"class":786},[709,1320,846],{"class":837},[709,1322,841],{"class":786},[709,1324,806],{"class":786},[709,1326,1327],{"class":718},"api",[709,1329,856],{"class":786},[709,1331,800],{"class":786},[709,1333,859],{"class":786},[709,1335,1337,1340,1342,1344],{"class":711,"line":1336},15,[709,1338,1339],{"class":837},"    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??",[709,1398,806],{"class":786},[709,1400,1401],{"class":718},"unknown",[709,1403,811],{"class":786},[709,1405,1407],{"class":711,"line":1406},18,[709,1408,1409],{"class":786},"    },\n",[709,1411,1413,1416,1418,1420,1422,1424,1426],{"class":711,"line":1412},19,[709,1414,1415],{"class":824},"    keep",[709,1417,841],{"class":786},[709,1419,893],{"class":786},[709,1421,1358],{"class":896},[709,1423,915],{"class":786},[709,1425,918],{"class":889},[709,1427,921],{"class":786},[709,1429,1431,1434,1436,1438,1440,1443,1446,1450,1453,1455,1457,1460,1462],{"class":711,"line":1430},20,[709,1432,1433],{"class":782},"      if",[709,1435,893],{"class":837},[709,1437,1358],{"class":790},[709,1439,930],{"class":786},[709,1441,1442],{"class":790},"duration",[709,1444,1445],{"class":786}," >",[709,1447,1449],{"class":1448},"sbssI"," 1000",[709,1451,1452],{"class":837},") ",[709,1454,1358],{"class":790},[709,1456,930],{"class":786},[709,1458,1459],{"class":790},"shouldKeep",[709,1461,1383],{"class":786},[709,1463,1464],{"class":997}," true\n",[709,1466,1468],{"class":711,"line":1467},21,[709,1469,1409],{"class":786},[709,1471,1473],{"class":711,"line":1472},22,[709,1474,1255],{"class":786},[709,1476,1478],{"class":711,"line":1477},23,[709,1479,868],{"class":790},[691,1481,1483],{"id":1482},"emitting-manually","Emitting manually",[613,1485,1486,1487,1489,1490,1492,1493,1495],{},"Prefer to own the emit? ",[617,1488,633],{}," wires ",[617,1491,1021],{}," for you but leaves ",[617,1494,1017],{}," to you:",[699,1497,1499],{"className":772,"code":1498,"filename":774,"language":775,"meta":705,"style":705},"import { defineWorkerFetch, initWorkersLogger } from 'evlog\u002Fworkers'\n\ninitWorkersLogger({ env: { service: 'my-worker' } })\n\nexport default defineWorkerFetch(async (request, _env, _ctx, log) => {\n  log.set({ action: 'handle_request' })\n  log.emit()\n  return Response.json({ ok: true })\n})\n",[617,1500,1501,1524,1528,1558,1562,1596,1622,1634,1658],{"__ignoreMap":705},[709,1502,1503,1505,1507,1510,1512,1514,1516,1518,1520,1522],{"class":711,"line":712},[709,1504,783],{"class":782},[709,1506,787],{"class":786},[709,1508,1509],{"class":790}," defineWorkerFetch",[709,1511,794],{"class":786},[709,1513,791],{"class":790},[709,1515,800],{"class":786},[709,1517,803],{"class":782},[709,1519,806],{"class":786},[709,1521,619],{"class":718},[709,1523,811],{"class":786},[709,1525,1526],{"class":711,"line":814},[709,1527,818],{"emptyLinePlaceholder":817},[709,1529,1530,1532,1534,1536,1538,1540,1542,1544,1546,1548,1550,1552,1554,1556],{"class":711,"line":821},[709,1531,825],{"class":824},[709,1533,828],{"class":790},[709,1535,938],{"class":786},[709,1537,1133],{"class":837},[709,1539,841],{"class":786},[709,1541,787],{"class":786},[709,1543,846],{"class":837},[709,1545,841],{"class":786},[709,1547,806],{"class":786},[709,1549,853],{"class":718},[709,1551,856],{"class":786},[709,1553,800],{"class":786},[709,1555,800],{"class":786},[709,1557,868],{"class":790},[709,1559,1560],{"class":711,"line":834},[709,1561,818],{"emptyLinePlaceholder":817},[709,1563,1564,1566,1568,1570,1572,1574,1576,1578,1580,1582,1584,1586,1588,1590,1592,1594],{"class":711,"line":862},[709,1565,879],{"class":782},[709,1567,882],{"class":782},[709,1569,1509],{"class":824},[709,1571,828],{"class":790},[709,1573,890],{"class":889},[709,1575,893],{"class":786},[709,1577,897],{"class":896},[709,1579,794],{"class":786},[709,1581,902],{"class":896},[709,1583,794],{"class":786},[709,1585,907],{"class":896},[709,1587,794],{"class":786},[709,1589,912],{"class":896},[709,1591,915],{"class":786},[709,1593,918],{"class":889},[709,1595,921],{"class":786},[709,1597,1598,1600,1602,1604,1606,1608,1610,1612,1614,1616,1618,1620],{"class":711,"line":871},[709,1599,927],{"class":790},[709,1601,930],{"class":786},[709,1603,933],{"class":824},[709,1605,828],{"class":837},[709,1607,938],{"class":786},[709,1609,941],{"class":837},[709,1611,841],{"class":786},[709,1613,806],{"class":786},[709,1615,948],{"class":718},[709,1617,856],{"class":786},[709,1619,800],{"class":786},[709,1621,868],{"class":837},[709,1623,1624,1626,1628,1631],{"class":711,"line":876},[709,1625,927],{"class":790},[709,1627,930],{"class":786},[709,1629,1630],{"class":824},"emit",[709,1632,1633],{"class":837},"()\n",[709,1635,1636,1638,1640,1642,1644,1646,1648,1650,1652,1654,1656],{"class":711,"line":924},[709,1637,977],{"class":782},[709,1639,980],{"class":790},[709,1641,930],{"class":786},[709,1643,985],{"class":824},[709,1645,828],{"class":837},[709,1647,938],{"class":786},[709,1649,992],{"class":837},[709,1651,841],{"class":786},[709,1653,998],{"class":997},[709,1655,800],{"class":786},[709,1657,868],{"class":837},[709,1659,1660,1662],{"class":711,"line":957},[709,1661,865],{"class":786},[709,1663,868],{"class":790},[1665,1666,1668,1670,1671,1673,1674,1677,1678,1050,1681,1050,1684,1050,1687,1050,1690,1670,1693,1696,1697,1700,1701,1703],"callout",{"color":1667,"icon":13},"info",[617,1669,633],{}," and ",[617,1672,637],{}," are the low-level path: they create the logger and leave the lifecycle to you, so ",[617,1675,1676],{},"include"," \u002F ",[617,1679,1680],{},"exclude",[617,1682,1683],{},"routes",[617,1685,1686],{},"redact",[617,1688,1689],{},"enrich",[617,1691,1692],{},"keep",[617,1694,1695],{},"plugins"," do ",[625,1698,1699],{},"not"," apply. Use ",[617,1702,629],{}," to get them.",[687,1705,51],{"id":1706},"wide-events",[613,1708,1709],{},"Build up context progressively, then emit at the end:",[699,1711,1713],{"className":772,"code":1712,"filename":774,"language":775,"meta":705,"style":705},"import { defineWorkerFetch, initWorkersLogger } from 'evlog\u002Fworkers'\n\ninitWorkersLogger({\n  env: { service: 'my-worker' },\n})\n\nexport default defineWorkerFetch(async (request, env, _ctx, log) => {\n  const url = new URL(request.url)\n\n  log.set({ route: url.pathname })\n\n  const user = await env.DB.prepare('SELECT * FROM users WHERE id = ?').bind(url.searchParams.get('userId')).first()\n  log.set({ user: { id: user.id, plan: user.plan } })\n\n  const orders = await env.DB.prepare('SELECT COUNT(*) as count FROM orders WHERE user_id = ?').bind(user.id).first()\n  log.set({ orders: { count: orders.count } })\n\n  log.emit()\n  return Response.json({ user, orders })\n})\n",[617,1714,1715,1737,1741,1749,1769,1775,1779,1813,1840,1844,1871,1875,1948,1998,2002,2055,2091,2095,2105,2129],{"__ignoreMap":705},[709,1716,1717,1719,1721,1723,1725,1727,1729,1731,1733,1735],{"class":711,"line":712},[709,1718,783],{"class":782},[709,1720,787],{"class":786},[709,1722,1509],{"class":790},[709,1724,794],{"class":786},[709,1726,791],{"class":790},[709,1728,800],{"class":786},[709,1730,803],{"class":782},[709,1732,806],{"class":786},[709,1734,619],{"class":718},[709,1736,811],{"class":786},[709,1738,1739],{"class":711,"line":814},[709,1740,818],{"emptyLinePlaceholder":817},[709,1742,1743,1745,1747],{"class":711,"line":821},[709,1744,825],{"class":824},[709,1746,828],{"class":790},[709,1748,831],{"class":786},[709,1750,1751,1753,1755,1757,1759,1761,1763,1765,1767],{"class":711,"line":834},[709,1752,838],{"class":837},[709,1754,841],{"class":786},[709,1756,787],{"class":786},[709,1758,846],{"class":837},[709,1760,841],{"class":786},[709,1762,806],{"class":786},[709,1764,853],{"class":718},[709,1766,856],{"class":786},[709,1768,859],{"class":786},[709,1770,1771,1773],{"class":711,"line":862},[709,1772,865],{"class":786},[709,1774,868],{"class":790},[709,1776,1777],{"class":711,"line":871},[709,1778,818],{"emptyLinePlaceholder":817},[709,1780,1781,1783,1785,1787,1789,1791,1793,1795,1797,1799,1801,1803,1805,1807,1809,1811],{"class":711,"line":876},[709,1782,879],{"class":782},[709,1784,882],{"class":782},[709,1786,1509],{"class":824},[709,1788,828],{"class":790},[709,1790,890],{"class":889},[709,1792,893],{"class":786},[709,1794,897],{"class":896},[709,1796,794],{"class":786},[709,1798,1133],{"class":896},[709,1800,794],{"class":786},[709,1802,907],{"class":896},[709,1804,794],{"class":786},[709,1806,912],{"class":896},[709,1808,915],{"class":786},[709,1810,918],{"class":889},[709,1812,921],{"class":786},[709,1814,1815,1818,1821,1823,1826,1829,1831,1833,1835,1838],{"class":711,"line":924},[709,1816,1817],{"class":889},"  const",[709,1819,1820],{"class":790}," url",[709,1822,1383],{"class":786},[709,1824,1825],{"class":786}," new",[709,1827,1828],{"class":824}," URL",[709,1830,828],{"class":837},[709,1832,897],{"class":790},[709,1834,930],{"class":786},[709,1836,1837],{"class":790},"url",[709,1839,868],{"class":837},[709,1841,1842],{"class":711,"line":957},[709,1843,818],{"emptyLinePlaceholder":817},[709,1845,1846,1848,1850,1852,1854,1856,1858,1860,1862,1864,1867,1869],{"class":711,"line":962},[709,1847,927],{"class":790},[709,1849,930],{"class":786},[709,1851,933],{"class":824},[709,1853,828],{"class":837},[709,1855,938],{"class":786},[709,1857,1212],{"class":837},[709,1859,841],{"class":786},[709,1861,1820],{"class":790},[709,1863,930],{"class":786},[709,1865,1866],{"class":790},"pathname",[709,1868,800],{"class":786},[709,1870,868],{"class":837},[709,1872,1873],{"class":711,"line":969},[709,1874,818],{"emptyLinePlaceholder":817},[709,1876,1877,1879,1882,1884,1887,1889,1891,1894,1896,1899,1901,1903,1906,1908,1910,1912,1915,1917,1919,1921,1924,1926,1929,1931,1933,1936,1938,1941,1943,1946],{"class":711,"line":974},[709,1878,1817],{"class":889},[709,1880,1881],{"class":790}," user",[709,1883,1383],{"class":786},[709,1885,1886],{"class":782}," await",[709,1888,1133],{"class":790},[709,1890,930],{"class":786},[709,1892,1893],{"class":790},"DB",[709,1895,930],{"class":786},[709,1897,1898],{"class":824},"prepare",[709,1900,828],{"class":837},[709,1902,856],{"class":786},[709,1904,1905],{"class":718},"SELECT * FROM users WHERE id = ?",[709,1907,856],{"class":786},[709,1909,915],{"class":837},[709,1911,930],{"class":786},[709,1913,1914],{"class":824},"bind",[709,1916,828],{"class":837},[709,1918,1837],{"class":790},[709,1920,930],{"class":786},[709,1922,1923],{"class":790},"searchParams",[709,1925,930],{"class":786},[709,1927,1928],{"class":824},"get",[709,1930,828],{"class":837},[709,1932,856],{"class":786},[709,1934,1935],{"class":718},"userId",[709,1937,856],{"class":786},[709,1939,1940],{"class":837},"))",[709,1942,930],{"class":786},[709,1944,1945],{"class":824},"first",[709,1947,1633],{"class":837},[709,1949,1950,1952,1954,1956,1958,1960,1962,1964,1966,1969,1971,1973,1975,1978,1980,1983,1985,1987,1989,1992,1994,1996],{"class":711,"line":1005},[709,1951,927],{"class":790},[709,1953,930],{"class":786},[709,1955,933],{"class":824},[709,1957,828],{"class":837},[709,1959,938],{"class":786},[709,1961,1881],{"class":837},[709,1963,841],{"class":786},[709,1965,787],{"class":786},[709,1967,1968],{"class":837}," id",[709,1970,841],{"class":786},[709,1972,1881],{"class":790},[709,1974,930],{"class":786},[709,1976,1977],{"class":790},"id",[709,1979,794],{"class":786},[709,1981,1982],{"class":837}," plan",[709,1984,841],{"class":786},[709,1986,1881],{"class":790},[709,1988,930],{"class":786},[709,1990,1991],{"class":790},"plan",[709,1993,800],{"class":786},[709,1995,800],{"class":786},[709,1997,868],{"class":837},[709,1999,2000],{"class":711,"line":1300},[709,2001,818],{"emptyLinePlaceholder":817},[709,2003,2004,2006,2009,2011,2013,2015,2017,2019,2021,2023,2025,2027,2030,2032,2034,2036,2038,2040,2043,2045,2047,2049,2051,2053],{"class":711,"line":1336},[709,2005,1817],{"class":889},[709,2007,2008],{"class":790}," orders",[709,2010,1383],{"class":786},[709,2012,1886],{"class":782},[709,2014,1133],{"class":790},[709,2016,930],{"class":786},[709,2018,1893],{"class":790},[709,2020,930],{"class":786},[709,2022,1898],{"class":824},[709,2024,828],{"class":837},[709,2026,856],{"class":786},[709,2028,2029],{"class":718},"SELECT COUNT(*) as count FROM orders WHERE user_id = ?",[709,2031,856],{"class":786},[709,2033,915],{"class":837},[709,2035,930],{"class":786},[709,2037,1914],{"class":824},[709,2039,828],{"class":837},[709,2041,2042],{"class":790},"user",[709,2044,930],{"class":786},[709,2046,1977],{"class":790},[709,2048,915],{"class":837},[709,2050,930],{"class":786},[709,2052,1945],{"class":824},[709,2054,1633],{"class":837},[709,2056,2057,2059,2061,2063,2065,2067,2069,2071,2073,2076,2078,2080,2082,2085,2087,2089],{"class":711,"line":1348},[709,2058,927],{"class":790},[709,2060,930],{"class":786},[709,2062,933],{"class":824},[709,2064,828],{"class":837},[709,2066,938],{"class":786},[709,2068,2008],{"class":837},[709,2070,841],{"class":786},[709,2072,787],{"class":786},[709,2074,2075],{"class":837}," count",[709,2077,841],{"class":786},[709,2079,2008],{"class":790},[709,2081,930],{"class":786},[709,2083,2084],{"class":790},"count",[709,2086,800],{"class":786},[709,2088,800],{"class":786},[709,2090,868],{"class":837},[709,2092,2093],{"class":711,"line":1367},[709,2094,818],{"emptyLinePlaceholder":817},[709,2096,2097,2099,2101,2103],{"class":711,"line":1406},[709,2098,927],{"class":790},[709,2100,930],{"class":786},[709,2102,1630],{"class":824},[709,2104,1633],{"class":837},[709,2106,2107,2109,2111,2113,2115,2117,2119,2121,2123,2125,2127],{"class":711,"line":1412},[709,2108,977],{"class":782},[709,2110,980],{"class":790},[709,2112,930],{"class":786},[709,2114,985],{"class":824},[709,2116,828],{"class":837},[709,2118,938],{"class":786},[709,2120,1881],{"class":790},[709,2122,794],{"class":786},[709,2124,2008],{"class":790},[709,2126,800],{"class":786},[709,2128,868],{"class":837},[709,2130,2131,2133],{"class":711,"line":1430},[709,2132,865],{"class":786},[709,2134,868],{"class":790},[699,2136,2139],{"className":701,"code":2137,"filename":2138,"language":704,"meta":705,"style":705},"14:58:15 INFO [my-worker] GET \u002Fapi\u002Fusers 200 in 12ms\n  ├─ orders: count=5\n  ├─ user: id=usr_123 plan=pro\n  ├─ route: \u002Fapi\u002Fusers\n  └─ requestId: 4a8ff3a8-...\n","Terminal output",[617,2140,2141,2152,2166,2179,2189],{"__ignoreMap":705},[709,2142,2143,2146,2149],{"class":711,"line":712},[709,2144,2145],{"class":715},"14:58:15",[709,2147,2148],{"class":718}," INFO",[709,2150,2151],{"class":790}," [my-worker] GET \u002Fapi\u002Fusers 200 in 12ms\n",[709,2153,2154,2157,2160,2163],{"class":711,"line":814},[709,2155,2156],{"class":715},"  ├─",[709,2158,2159],{"class":718}," orders:",[709,2161,2162],{"class":718}," count=",[709,2164,2165],{"class":1448},"5\n",[709,2167,2168,2170,2173,2176],{"class":711,"line":821},[709,2169,2156],{"class":715},[709,2171,2172],{"class":718}," user:",[709,2174,2175],{"class":718}," id=usr_123",[709,2177,2178],{"class":718}," plan=pro\n",[709,2180,2181,2183,2186],{"class":711,"line":834},[709,2182,2156],{"class":715},[709,2184,2185],{"class":718}," route:",[709,2187,2188],{"class":718}," \u002Fapi\u002Fusers\n",[709,2190,2191,2194,2197],{"class":711,"line":862},[709,2192,2193],{"class":715},"  └─",[709,2195,2196],{"class":718}," requestId:",[709,2198,2199],{"class":718}," 4a8ff3a8-...\n",[687,2201,2203],{"id":2202},"error-handling","Error Handling",[613,2205,623,2206,2209],{},[617,2207,2208],{},"createError"," for structured errors and handle them with try\u002Fcatch:",[2211,2212,2213],"code-collapse",{},[699,2214,2216],{"className":772,"code":2215,"filename":774,"language":775,"meta":705,"style":705},"import { createError, parseError } from 'evlog'\nimport { defineWorkerFetch, initWorkersLogger } from 'evlog\u002Fworkers'\n\ninitWorkersLogger({ env: { service: 'my-worker' } })\n\nexport default defineWorkerFetch(async (request, env, _ctx, log) => {\n  try {\n    const body = await request.json()\n    log.set({ payment: { amount: body.amount } })\n\n    if (body.amount \u003C= 0) {\n      throw createError({\n        status: 400,\n        message: 'Invalid payment amount',\n        why: 'The amount must be a positive number',\n        fix: 'Pass a positive integer in cents',\n      })\n    }\n\n    log.emit()\n    return Response.json({ success: true })\n  } catch (error) {\n    log.error(error instanceof Error ? error : new Error(String(error)))\n    log.emit()\n\n    const parsed = parseError(error)\n    return Response.json({\n      message: parsed.message,\n      why: parsed.why,\n      fix: parsed.fix,\n    }, { status: parsed.status })\n  }\n})\n",[617,2217,2218,2243,2265,2269,2299,2303,2337,2344,2365,2402,2406,2430,2441,2453,2469,2485,2501,2508,2513,2517,2527,2552,2569,2612,2623,2628,2646,2661,2678,2695,2712,2736,2742],{"__ignoreMap":705},[709,2219,2220,2222,2224,2227,2229,2232,2234,2236,2238,2241],{"class":711,"line":712},[709,2221,783],{"class":782},[709,2223,787],{"class":786},[709,2225,2226],{"class":790}," createError",[709,2228,794],{"class":786},[709,2230,2231],{"class":790}," parseError",[709,2233,800],{"class":786},[709,2235,803],{"class":782},[709,2237,806],{"class":786},[709,2239,2240],{"class":718},"evlog",[709,2242,811],{"class":786},[709,2244,2245,2247,2249,2251,2253,2255,2257,2259,2261,2263],{"class":711,"line":814},[709,2246,783],{"class":782},[709,2248,787],{"class":786},[709,2250,1509],{"class":790},[709,2252,794],{"class":786},[709,2254,791],{"class":790},[709,2256,800],{"class":786},[709,2258,803],{"class":782},[709,2260,806],{"class":786},[709,2262,619],{"class":718},[709,2264,811],{"class":786},[709,2266,2267],{"class":711,"line":821},[709,2268,818],{"emptyLinePlaceholder":817},[709,2270,2271,2273,2275,2277,2279,2281,2283,2285,2287,2289,2291,2293,2295,2297],{"class":711,"line":834},[709,2272,825],{"class":824},[709,2274,828],{"class":790},[709,2276,938],{"class":786},[709,2278,1133],{"class":837},[709,2280,841],{"class":786},[709,2282,787],{"class":786},[709,2284,846],{"class":837},[709,2286,841],{"class":786},[709,2288,806],{"class":786},[709,2290,853],{"class":718},[709,2292,856],{"class":786},[709,2294,800],{"class":786},[709,2296,800],{"class":786},[709,2298,868],{"class":790},[709,2300,2301],{"class":711,"line":862},[709,2302,818],{"emptyLinePlaceholder":817},[709,2304,2305,2307,2309,2311,2313,2315,2317,2319,2321,2323,2325,2327,2329,2331,2333,2335],{"class":711,"line":871},[709,2306,879],{"class":782},[709,2308,882],{"class":782},[709,2310,1509],{"class":824},[709,2312,828],{"class":790},[709,2314,890],{"class":889},[709,2316,893],{"class":786},[709,2318,897],{"class":896},[709,2320,794],{"class":786},[709,2322,1133],{"class":896},[709,2324,794],{"class":786},[709,2326,907],{"class":896},[709,2328,794],{"class":786},[709,2330,912],{"class":896},[709,2332,915],{"class":786},[709,2334,918],{"class":889},[709,2336,921],{"class":786},[709,2338,2339,2342],{"class":711,"line":876},[709,2340,2341],{"class":782},"  try",[709,2343,921],{"class":786},[709,2345,2346,2349,2352,2354,2356,2359,2361,2363],{"class":711,"line":924},[709,2347,2348],{"class":889},"    const",[709,2350,2351],{"class":790}," body",[709,2353,1383],{"class":786},[709,2355,1886],{"class":782},[709,2357,2358],{"class":790}," request",[709,2360,930],{"class":786},[709,2362,985],{"class":824},[709,2364,1633],{"class":837},[709,2366,2367,2369,2371,2373,2375,2377,2380,2382,2384,2387,2389,2391,2393,2396,2398,2400],{"class":711,"line":957},[709,2368,1201],{"class":790},[709,2370,930],{"class":786},[709,2372,933],{"class":824},[709,2374,828],{"class":837},[709,2376,938],{"class":786},[709,2378,2379],{"class":837}," payment",[709,2381,841],{"class":786},[709,2383,787],{"class":786},[709,2385,2386],{"class":837}," amount",[709,2388,841],{"class":786},[709,2390,2351],{"class":790},[709,2392,930],{"class":786},[709,2394,2395],{"class":790},"amount",[709,2397,800],{"class":786},[709,2399,800],{"class":786},[709,2401,868],{"class":837},[709,2403,2404],{"class":711,"line":962},[709,2405,818],{"emptyLinePlaceholder":817},[709,2407,2408,2411,2413,2416,2418,2420,2423,2426,2428],{"class":711,"line":969},[709,2409,2410],{"class":782},"    if",[709,2412,893],{"class":837},[709,2414,2415],{"class":790},"body",[709,2417,930],{"class":786},[709,2419,2395],{"class":790},[709,2421,2422],{"class":786}," \u003C=",[709,2424,2425],{"class":1448}," 0",[709,2427,1452],{"class":837},[709,2429,831],{"class":786},[709,2431,2432,2435,2437,2439],{"class":711,"line":974},[709,2433,2434],{"class":782},"      throw",[709,2436,2226],{"class":824},[709,2438,828],{"class":837},[709,2440,831],{"class":786},[709,2442,2443,2446,2448,2451],{"class":711,"line":1005},[709,2444,2445],{"class":837},"        status",[709,2447,841],{"class":786},[709,2449,2450],{"class":1448}," 400",[709,2452,1275],{"class":786},[709,2454,2455,2458,2460,2462,2465,2467],{"class":711,"line":1300},[709,2456,2457],{"class":837},"        message",[709,2459,841],{"class":786},[709,2461,806],{"class":786},[709,2463,2464],{"class":718},"Invalid payment amount",[709,2466,856],{"class":786},[709,2468,1275],{"class":786},[709,2470,2471,2474,2476,2478,2481,2483],{"class":711,"line":1336},[709,2472,2473],{"class":837},"        why",[709,2475,841],{"class":786},[709,2477,806],{"class":786},[709,2479,2480],{"class":718},"The amount must be a positive number",[709,2482,856],{"class":786},[709,2484,1275],{"class":786},[709,2486,2487,2490,2492,2494,2497,2499],{"class":711,"line":1348},[709,2488,2489],{"class":837},"        fix",[709,2491,841],{"class":786},[709,2493,806],{"class":786},[709,2495,2496],{"class":718},"Pass a positive integer in cents",[709,2498,856],{"class":786},[709,2500,1275],{"class":786},[709,2502,2503,2506],{"class":711,"line":1367},[709,2504,2505],{"class":786},"      }",[709,2507,868],{"class":837},[709,2509,2510],{"class":711,"line":1406},[709,2511,2512],{"class":786},"    }\n",[709,2514,2515],{"class":711,"line":1412},[709,2516,818],{"emptyLinePlaceholder":817},[709,2518,2519,2521,2523,2525],{"class":711,"line":1430},[709,2520,1201],{"class":790},[709,2522,930],{"class":786},[709,2524,1630],{"class":824},[709,2526,1633],{"class":837},[709,2528,2529,2531,2533,2535,2537,2539,2541,2544,2546,2548,2550],{"class":711,"line":1467},[709,2530,1230],{"class":782},[709,2532,980],{"class":790},[709,2534,930],{"class":786},[709,2536,985],{"class":824},[709,2538,828],{"class":837},[709,2540,938],{"class":786},[709,2542,2543],{"class":837}," success",[709,2545,841],{"class":786},[709,2547,998],{"class":997},[709,2549,800],{"class":786},[709,2551,868],{"class":837},[709,2553,2554,2557,2560,2562,2565,2567],{"class":711,"line":1472},[709,2555,2556],{"class":786},"  }",[709,2558,2559],{"class":782}," catch",[709,2561,893],{"class":837},[709,2563,2564],{"class":790},"error",[709,2566,1452],{"class":837},[709,2568,831],{"class":786},[709,2570,2571,2573,2575,2577,2579,2581,2584,2587,2590,2593,2596,2598,2600,2602,2605,2607,2609],{"class":711,"line":1477},[709,2572,1201],{"class":790},[709,2574,930],{"class":786},[709,2576,2564],{"class":824},[709,2578,828],{"class":837},[709,2580,2564],{"class":790},[709,2582,2583],{"class":786}," instanceof",[709,2585,2586],{"class":715}," Error",[709,2588,2589],{"class":786}," ?",[709,2591,2592],{"class":790}," error",[709,2594,2595],{"class":786}," :",[709,2597,1825],{"class":786},[709,2599,2586],{"class":824},[709,2601,828],{"class":837},[709,2603,2604],{"class":824},"String",[709,2606,828],{"class":837},[709,2608,2564],{"class":790},[709,2610,2611],{"class":837},")))\n",[709,2613,2615,2617,2619,2621],{"class":711,"line":2614},24,[709,2616,1201],{"class":790},[709,2618,930],{"class":786},[709,2620,1630],{"class":824},[709,2622,1633],{"class":837},[709,2624,2626],{"class":711,"line":2625},25,[709,2627,818],{"emptyLinePlaceholder":817},[709,2629,2631,2633,2636,2638,2640,2642,2644],{"class":711,"line":2630},26,[709,2632,2348],{"class":889},[709,2634,2635],{"class":790}," 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}\n",[709,2743,2745,2747],{"class":711,"line":2744},33,[709,2746,865],{"class":786},[709,2748,868],{"class":790},[687,2750,552],{"id":2751},"configuration",[613,2753,2754,2755,2758,2759,2762],{},"See the ",[676,2756,2757],{"href":553},"Configuration reference"," for all available options (",[617,2760,2761],{},"initLogger",", middleware options, sampling, silent mode, etc.).",[687,2764,2766],{"id":2765},"drain-enrichers","Drain & Enrichers",[613,2768,2769,2770,2772],{},"Configure drain and enrichers via ",[617,2771,825],{}," options:",[699,2774,2776],{"className":772,"code":2775,"filename":774,"language":775,"meta":705,"style":705},"import { initWorkersLogger, createWorkersLogger } from 'evlog\u002Fworkers'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createUserAgentEnricher } from 'evlog\u002Fenrichers'\nimport { createDrainPipeline } from 'evlog\u002Fpipeline'\nimport type { DrainContext } from 'evlog'\n\nconst pipeline = createDrainPipeline\u003CDrainContext>({\n  batch: { size: 50, intervalMs: 5000 },\n})\nconst drain = pipeline(createAxiomDrain())\nconst userAgent = createUserAgentEnricher()\n\ninitWorkersLogger({\n  env: { service: 'my-worker' },\n  drain,\n  enrich: (ctx) => {\n    userAgent(ctx)\n  },\n})\n",[617,2777,2778,2801,2819,2839,2859,2881,2885,2911,2940,2946,2966,2979,2983,2991,3011,3018,3035,3046,3050],{"__ignoreMap":705},[709,2779,2780,2782,2784,2786,2788,2791,2793,2795,2797,2799],{"class":711,"line":712},[709,2781,783],{"class":782},[709,2783,787],{"class":786},[709,2785,791],{"class":790},[709,2787,794],{"class":786},[709,2789,2790],{"class":790}," 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