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LogTape","\u002Fcompare\u002Flogtape","9.compare\u002F3.logtape",{"title":605,"path":606,"stem":607,"icon":577},"evlog vs Winston: formats and request events","\u002Fcompare\u002Fwinston","9.compare\u002F4.winston",{"title":609,"path":610,"stem":611,"icon":577},"evlog vs Consola: reporters and request context","\u002Fcompare\u002Fconsola","9.compare\u002F5.consola",{"id":613,"title":25,"body":614,"description":3440,"extension":3441,"links":3442,"meta":3446,"navigation":3447,"path":26,"seo":3448,"stem":27,"__hash__":3449},"docs\u002F1.start\u002F4.quick-start.md",{"type":615,"value":616,"toc":3425},"minimark",[617,626,667,710,715,718,929,932,953,961,965,975,1240,1259,1275,1348,1362,1366,1373,1702,1712,1717,1780,1784,1787,1792,1798,1988,1991,2038,2042,2047,2175,2188,2192,2198,2447,2451,2553,2557,2562,2924,2928,2934,3325,3331,3335,3338,3361,3376,3379,3383,3421],[618,619,620,621,625],"p",{},"This guide covers the core APIs you'll use most often with evlog. Prefer to learn by running a complete server? Follow ",[622,623,624],"a",{"href":451},"Structured Logging in Node.js",", then return here for the API overview.",[627,628,630,631,635,636,640,641,644,645,648,649,652,653,656,657,640,660,644,663,666],"callout",{"color":629,"icon":443},"info","In Nuxt, evlog ",[632,633,634],"strong",{},"auto-imports"," ",[637,638,639],"code",{},"useLogger",", ",[637,642,643],{},"log",", and ",[637,646,647],{},"parseError",". ",[637,650,651],{},"createError"," is imported from ",[637,654,655],{},"evlog",": the auto-imported one is Nuxt's own, and it drops ",[637,658,659],{},"why",[637,661,662],{},"fix",[637,664,665],{},"link",".",[668,669,672,675,697],"prompt",{":actions":670,"description":671,"icon":28},"[\"copy\",\"cursor\",\"claude\"]","Get evlog running in 2 minutes",[618,673,674],{},"Get evlog running in my project in under 2 minutes.",[676,677,678,682,685,688,691,694],"ul",{},[679,680,681],"li",{},"Install evlog: pnpm add evlog",[679,683,684],{},"Detect my framework and wire up the matching integration",[679,686,687],{},"Set evlog.env.service to my app name",[679,689,690],{},"Add a single useLogger(event) call in a route handler with log.set({ ... })",[679,692,693],{},"Throw one createError({ message, status, why, fix }) for an invalid input case",[679,695,696],{},"Trigger the route locally and confirm a single wide event prints to the terminal",[618,698,699,700,705,706],{},"Docs: ",[622,701,702],{"href":702,"rel":703},"https:\u002F\u002Fwww.evlog.dev\u002Fstart\u002Fquick-start",[704],"nofollow","\nFrameworks: ",[622,707,708],{"href":708,"rel":709},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fframeworks\u002Foverview",[704],[711,712,714],"h2",{"id":713},"log-simple-logging","log (Simple Logging)",[618,716,717],{},"The simplest way to use evlog. Fire-and-forget structured logs, anywhere in your code:",[719,720,721,881],"code-group",{},[722,723,729],"pre",{"className":724,"code":725,"filename":726,"language":727,"meta":728,"style":728},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { log } from 'evlog'\n\nlog.info('auth', 'User logged in')\nlog.error({ action: 'payment', error: 'card_declined' })\nlog.warn('cache', 'Cache miss')\n","Server","typescript","",[637,730,731,763,770,804,851],{"__ignoreMap":728},[732,733,736,740,744,748,751,754,757,760],"span",{"class":734,"line":735},"line",1,[732,737,739],{"class":738},"s7zQu","import",[732,741,743],{"class":742},"sMK4o"," {",[732,745,747],{"class":746},"sTEyZ"," log",[732,749,750],{"class":742}," }",[732,752,753],{"class":738}," from",[732,755,756],{"class":742}," '",[732,758,655],{"class":759},"sfazB",[732,761,762],{"class":742},"'\n",[732,764,766],{"class":734,"line":765},2,[732,767,769],{"emptyLinePlaceholder":768},true,"\n",[732,771,773,775,777,780,783,786,789,791,794,796,799,801],{"class":734,"line":772},3,[732,774,643],{"class":746},[732,776,666],{"class":742},[732,778,629],{"class":779},"s2Zo4",[732,781,782],{"class":746},"(",[732,784,785],{"class":742},"'",[732,787,788],{"class":759},"auth",[732,790,785],{"class":742},[732,792,793],{"class":742},",",[732,795,756],{"class":742},[732,797,798],{"class":759},"User logged in",[732,800,785],{"class":742},[732,802,803],{"class":746},")\n",[732,805,807,809,811,814,816,819,823,826,828,831,833,835,838,840,842,845,847,849],{"class":734,"line":806},4,[732,808,643],{"class":746},[732,810,666],{"class":742},[732,812,813],{"class":779},"error",[732,815,782],{"class":746},[732,817,818],{"class":742},"{",[732,820,822],{"class":821},"swJcz"," action",[732,824,825],{"class":742},":",[732,827,756],{"class":742},[732,829,830],{"class":759},"payment",[732,832,785],{"class":742},[732,834,793],{"class":742},[732,836,837],{"class":821}," error",[732,839,825],{"class":742},[732,841,756],{"class":742},[732,843,844],{"class":759},"card_declined",[732,846,785],{"class":742},[732,848,750],{"class":742},[732,850,803],{"class":746},[732,852,854,856,858,861,863,865,868,870,872,874,877,879],{"class":734,"line":853},5,[732,855,643],{"class":746},[732,857,666],{"class":742},[732,859,860],{"class":779},"warn",[732,862,782],{"class":746},[732,864,785],{"class":742},[732,866,867],{"class":759},"cache",[732,869,785],{"class":742},[732,871,793],{"class":742},[732,873,756],{"class":742},[732,875,876],{"class":759},"Cache miss",[732,878,785],{"class":742},[732,880,803],{"class":746},[722,882,887],{"className":883,"code":884,"filename":885,"language":886,"meta":728,"style":728},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","10:23:45.612 [auth] User logged in\n10:23:45.613 ERROR [my-app] action=payment error=card_declined\n10:23:45.614 [cache] Cache miss\n","Output","bash",[637,888,889,898,921],{"__ignoreMap":728},[732,890,891,895],{"class":734,"line":735},[732,892,894],{"class":893},"sBMFI","10:23:45.612",[732,896,897],{"class":746}," [auth] User logged in\n",[732,899,900,903,906,909,912,914,916,918],{"class":734,"line":765},[732,901,902],{"class":893},"10:23:45.613",[732,904,905],{"class":759}," ERROR",[732,907,908],{"class":746}," [my-app] action",[732,910,911],{"class":742},"=",[732,913,830],{"class":759},[732,915,837],{"class":746},[732,917,911],{"class":742},[732,919,920],{"class":759},"card_declined\n",[732,922,923,926],{"class":734,"line":772},[732,924,925],{"class":893},"10:23:45.614",[732,927,928],{"class":746}," [cache] Cache miss\n",[618,930,931],{},"Two call styles:",[676,933,934,944],{},[679,935,936,939,940,943],{},[632,937,938],{},"Tagged",": ",[637,941,942],{},"log.info('tag', 'message')"," for quick, readable console output",[679,945,946,939,949,952],{},[632,947,948],{},"Structured",[637,950,951],{},"log.info({ key: value })"," for rich events that flow through the drain pipeline",[627,954,957,958,960],{"color":955,"icon":956},"neutral","i-lucide-arrow-right","See the full ",[622,959,46],{"href":47}," guide for all patterns and drain integration.",[711,962,964],{"id":963},"createlogger-wide-events","createLogger (Wide Events)",[618,966,967,968,971,972,825],{},"When you need to ",[632,969,970],{},"accumulate context"," across multiple steps of an operation, whether a script, background job, queue worker, or workflow, use ",[637,973,974],{},"createLogger",[719,976,977,1183],{},[722,978,981],{"className":724,"code":979,"filename":980,"language":727,"meta":728,"style":728},"import { initLogger, createLogger } from 'evlog'\n\ninitLogger({ env: { service: 'sync-worker' } })\n\nconst log = createLogger({ jobId: job.id, queue: 'emails' })\n\nlog.set({ batch: { size: 50 } })\nlog.set({ batch: { processed: 50 } })\nlog.emit()\n","scripts\u002Fsync-job.ts",[637,982,983,1007,1011,1045,1049,1097,1102,1138,1170],{"__ignoreMap":728},[732,984,985,987,989,992,994,997,999,1001,1003,1005],{"class":734,"line":735},[732,986,739],{"class":738},[732,988,743],{"class":742},[732,990,991],{"class":746}," initLogger",[732,993,793],{"class":742},[732,995,996],{"class":746}," createLogger",[732,998,750],{"class":742},[732,1000,753],{"class":738},[732,1002,756],{"class":742},[732,1004,655],{"class":759},[732,1006,762],{"class":742},[732,1008,1009],{"class":734,"line":765},[732,1010,769],{"emptyLinePlaceholder":768},[732,1012,1013,1016,1018,1020,1023,1025,1027,1030,1032,1034,1037,1039,1041,1043],{"class":734,"line":772},[732,1014,1015],{"class":779},"initLogger",[732,1017,782],{"class":746},[732,1019,818],{"class":742},[732,1021,1022],{"class":821}," env",[732,1024,825],{"class":742},[732,1026,743],{"class":742},[732,1028,1029],{"class":821}," service",[732,1031,825],{"class":742},[732,1033,756],{"class":742},[732,1035,1036],{"class":759},"sync-worker",[732,1038,785],{"class":742},[732,1040,750],{"class":742},[732,1042,750],{"class":742},[732,1044,803],{"class":746},[732,1046,1047],{"class":734,"line":806},[732,1048,769],{"emptyLinePlaceholder":768},[732,1050,1051,1055,1058,1060,1062,1064,1066,1069,1071,1074,1076,1079,1081,1084,1086,1088,1091,1093,1095],{"class":734,"line":853},[732,1052,1054],{"class":1053},"spNyl","const",[732,1056,1057],{"class":746}," log ",[732,1059,911],{"class":742},[732,1061,996],{"class":779},[732,1063,782],{"class":746},[732,1065,818],{"class":742},[732,1067,1068],{"class":821}," jobId",[732,1070,825],{"class":742},[732,1072,1073],{"class":746}," job",[732,1075,666],{"class":742},[732,1077,1078],{"class":746},"id",[732,1080,793],{"class":742},[732,1082,1083],{"class":821}," queue",[732,1085,825],{"class":742},[732,1087,756],{"class":742},[732,1089,1090],{"class":759},"emails",[732,1092,785],{"class":742},[732,1094,750],{"class":742},[732,1096,803],{"class":746},[732,1098,1100],{"class":734,"line":1099},6,[732,1101,769],{"emptyLinePlaceholder":768},[732,1103,1105,1107,1109,1112,1114,1116,1119,1121,1123,1126,1128,1132,1134,1136],{"class":734,"line":1104},7,[732,1106,643],{"class":746},[732,1108,666],{"class":742},[732,1110,1111],{"class":779},"set",[732,1113,782],{"class":746},[732,1115,818],{"class":742},[732,1117,1118],{"class":821}," batch",[732,1120,825],{"class":742},[732,1122,743],{"class":742},[732,1124,1125],{"class":821}," size",[732,1127,825],{"class":742},[732,1129,1131],{"class":1130},"sbssI"," 50",[732,1133,750],{"class":742},[732,1135,750],{"class":742},[732,1137,803],{"class":746},[732,1139,1141,1143,1145,1147,1149,1151,1153,1155,1157,1160,1162,1164,1166,1168],{"class":734,"line":1140},8,[732,1142,643],{"class":746},[732,1144,666],{"class":742},[732,1146,1111],{"class":779},[732,1148,782],{"class":746},[732,1150,818],{"class":742},[732,1152,1118],{"class":821},[732,1154,825],{"class":742},[732,1156,743],{"class":742},[732,1158,1159],{"class":821}," processed",[732,1161,825],{"class":742},[732,1163,1131],{"class":1130},[732,1165,750],{"class":742},[732,1167,750],{"class":742},[732,1169,803],{"class":746},[732,1171,1173,1175,1177,1180],{"class":734,"line":1172},9,[732,1174,643],{"class":746},[732,1176,666],{"class":742},[732,1178,1179],{"class":779},"emit",[732,1181,1182],{"class":746},"()\n",[722,1184,1187],{"className":883,"code":1185,"filename":1186,"language":886,"meta":728,"style":728},"10:23:45.612 INFO [sync-worker] in 1204ms\n  ├─ jobId: job_abc123\n  ├─ queue: emails\n  └─ batch: size=50 processed=50\n","Output (Pretty)",[637,1188,1189,1199,1210,1220],{"__ignoreMap":728},[732,1190,1191,1193,1196],{"class":734,"line":735},[732,1192,894],{"class":893},[732,1194,1195],{"class":759}," INFO",[732,1197,1198],{"class":746}," [sync-worker] in 1204ms\n",[732,1200,1201,1204,1207],{"class":734,"line":765},[732,1202,1203],{"class":893},"  ├─",[732,1205,1206],{"class":759}," jobId:",[732,1208,1209],{"class":759}," job_abc123\n",[732,1211,1212,1214,1217],{"class":734,"line":772},[732,1213,1203],{"class":893},[732,1215,1216],{"class":759}," queue:",[732,1218,1219],{"class":759}," emails\n",[732,1221,1222,1225,1228,1231,1234,1237],{"class":734,"line":806},[732,1223,1224],{"class":893},"  └─",[732,1226,1227],{"class":759}," batch:",[732,1229,1230],{"class":759}," size=",[732,1232,1233],{"class":1130},"50",[732,1235,1236],{"class":759}," processed=",[732,1238,1239],{"class":1130},"50\n",[618,1241,1242,1245,1246,640,1248,640,1250,640,1252,640,1254,644,1256,666],{},[637,1243,1244],{},"createLogger()"," accepts any initial context as a plain object. It returns a logger with ",[637,1247,1111],{},[637,1249,813],{},[637,1251,629],{},[637,1253,860],{},[637,1255,1179],{},[637,1257,1258],{},"getContext",[618,1260,1261,1262,1265,1266,640,1269,644,1272,825],{},"For HTTP request contexts specifically, use ",[637,1263,1264],{},"createRequestLogger()"," which pre-populates ",[637,1267,1268],{},"method",[637,1270,1271],{},"path",[637,1273,1274],{},"requestId",[722,1276,1279],{"className":724,"code":1277,"filename":1278,"language":727,"meta":728,"style":728},"import { createRequestLogger } from 'evlog'\n\nconst log = createRequestLogger({ method: 'POST', path: '\u002Fapi\u002Fcheckout' })\n","src\u002Fworker.ts",[637,1280,1281,1300,1304],{"__ignoreMap":728},[732,1282,1283,1285,1287,1290,1292,1294,1296,1298],{"class":734,"line":735},[732,1284,739],{"class":738},[732,1286,743],{"class":742},[732,1288,1289],{"class":746}," createRequestLogger",[732,1291,750],{"class":742},[732,1293,753],{"class":738},[732,1295,756],{"class":742},[732,1297,655],{"class":759},[732,1299,762],{"class":742},[732,1301,1302],{"class":734,"line":765},[732,1303,769],{"emptyLinePlaceholder":768},[732,1305,1306,1308,1310,1312,1314,1316,1318,1321,1323,1325,1328,1330,1332,1335,1337,1339,1342,1344,1346],{"class":734,"line":772},[732,1307,1054],{"class":1053},[732,1309,1057],{"class":746},[732,1311,911],{"class":742},[732,1313,1289],{"class":779},[732,1315,782],{"class":746},[732,1317,818],{"class":742},[732,1319,1320],{"class":821}," method",[732,1322,825],{"class":742},[732,1324,756],{"class":742},[732,1326,1327],{"class":759},"POST",[732,1329,785],{"class":742},[732,1331,793],{"class":742},[732,1333,1334],{"class":821}," path",[732,1336,825],{"class":742},[732,1338,756],{"class":742},[732,1340,1341],{"class":759},"\u002Fapi\u002Fcheckout",[732,1343,785],{"class":742},[732,1345,750],{"class":742},[732,1347,803],{"class":746},[627,1349,1350,1351,1353,1354,1357,1358,1361],{"color":629,"icon":13},"With ",[637,1352,974],{}," and ",[637,1355,1356],{},"createRequestLogger",", you must call ",[637,1359,1360],{},"log.emit()"," manually. In framework integrations, this happens automatically.",[711,1363,1365],{"id":1364},"uselogger-retrieve-the-request-logger","useLogger (Retrieve the Request Logger)",[618,1367,1368,1369,1372],{},"When using a framework integration (Nuxt, Hono, Express, etc.), the middleware automatically creates a wide event logger on request start and emits it on response end. ",[637,1370,1371],{},"useLogger(event)"," retrieves that logger from the request context:",[719,1374,1375,1643],{},[722,1376,1379],{"className":724,"code":1377,"filename":1378,"language":727,"meta":728,"style":728},"import { useLogger } from 'evlog'\n\nexport default defineEventHandler(async (event) => {\n  const log = useLogger(event)\n\n  log.set({ user: { id: 1, plan: 'pro' } })\n  log.set({ cart: { items: 3, total: 9999 } })\n\n  const order = await processCheckout()\n  log.set({ orderId: order.id })\n\n  return { success: true, orderId: order.id }\n})\n","server\u002Fapi\u002Fcheckout.post.ts",[637,1380,1381,1400,1404,1436,1454,1458,1506,1549,1553,1570,1598,1603,1635],{"__ignoreMap":728},[732,1382,1383,1385,1387,1390,1392,1394,1396,1398],{"class":734,"line":735},[732,1384,739],{"class":738},[732,1386,743],{"class":742},[732,1388,1389],{"class":746}," useLogger",[732,1391,750],{"class":742},[732,1393,753],{"class":738},[732,1395,756],{"class":742},[732,1397,655],{"class":759},[732,1399,762],{"class":742},[732,1401,1402],{"class":734,"line":765},[732,1403,769],{"emptyLinePlaceholder":768},[732,1405,1406,1409,1412,1415,1417,1420,1423,1427,1430,1433],{"class":734,"line":772},[732,1407,1408],{"class":738},"export",[732,1410,1411],{"class":738}," default",[732,1413,1414],{"class":779}," defineEventHandler",[732,1416,782],{"class":746},[732,1418,1419],{"class":1053},"async",[732,1421,1422],{"class":742}," (",[732,1424,1426],{"class":1425},"sHdIc","event",[732,1428,1429],{"class":742},")",[732,1431,1432],{"class":1053}," =>",[732,1434,1435],{"class":742}," {\n",[732,1437,1438,1441,1443,1446,1448,1450,1452],{"class":734,"line":806},[732,1439,1440],{"class":1053},"  const",[732,1442,747],{"class":746},[732,1444,1445],{"class":742}," =",[732,1447,1389],{"class":779},[732,1449,782],{"class":821},[732,1451,1426],{"class":746},[732,1453,803],{"class":821},[732,1455,1456],{"class":734,"line":853},[732,1457,769],{"emptyLinePlaceholder":768},[732,1459,1460,1463,1465,1467,1469,1471,1474,1476,1478,1481,1483,1486,1488,1491,1493,1495,1498,1500,1502,1504],{"class":734,"line":1099},[732,1461,1462],{"class":746},"  log",[732,1464,666],{"class":742},[732,1466,1111],{"class":779},[732,1468,782],{"class":821},[732,1470,818],{"class":742},[732,1472,1473],{"class":821}," user",[732,1475,825],{"class":742},[732,1477,743],{"class":742},[732,1479,1480],{"class":821}," id",[732,1482,825],{"class":742},[732,1484,1485],{"class":1130}," 1",[732,1487,793],{"class":742},[732,1489,1490],{"class":821}," plan",[732,1492,825],{"class":742},[732,1494,756],{"class":742},[732,1496,1497],{"class":759},"pro",[732,1499,785],{"class":742},[732,1501,750],{"class":742},[732,1503,750],{"class":742},[732,1505,803],{"class":821},[732,1507,1508,1510,1512,1514,1516,1518,1521,1523,1525,1528,1530,1533,1535,1538,1540,1543,1545,1547],{"class":734,"line":1104},[732,1509,1462],{"class":746},[732,1511,666],{"class":742},[732,1513,1111],{"class":779},[732,1515,782],{"class":821},[732,1517,818],{"class":742},[732,1519,1520],{"class":821}," cart",[732,1522,825],{"class":742},[732,1524,743],{"class":742},[732,1526,1527],{"class":821}," items",[732,1529,825],{"class":742},[732,1531,1532],{"class":1130}," 3",[732,1534,793],{"class":742},[732,1536,1537],{"class":821}," total",[732,1539,825],{"class":742},[732,1541,1542],{"class":1130}," 9999",[732,1544,750],{"class":742},[732,1546,750],{"class":742},[732,1548,803],{"class":821},[732,1550,1551],{"class":734,"line":1140},[732,1552,769],{"emptyLinePlaceholder":768},[732,1554,1555,1557,1560,1562,1565,1568],{"class":734,"line":1172},[732,1556,1440],{"class":1053},[732,1558,1559],{"class":746}," order",[732,1561,1445],{"class":742},[732,1563,1564],{"class":738}," await",[732,1566,1567],{"class":779}," processCheckout",[732,1569,1182],{"class":821},[732,1571,1573,1575,1577,1579,1581,1583,1586,1588,1590,1592,1594,1596],{"class":734,"line":1572},10,[732,1574,1462],{"class":746},[732,1576,666],{"class":742},[732,1578,1111],{"class":779},[732,1580,782],{"class":821},[732,1582,818],{"class":742},[732,1584,1585],{"class":821}," orderId",[732,1587,825],{"class":742},[732,1589,1559],{"class":746},[732,1591,666],{"class":742},[732,1593,1078],{"class":746},[732,1595,750],{"class":742},[732,1597,803],{"class":821},[732,1599,1601],{"class":734,"line":1600},11,[732,1602,769],{"emptyLinePlaceholder":768},[732,1604,1606,1609,1611,1614,1616,1620,1622,1624,1626,1628,1630,1632],{"class":734,"line":1605},12,[732,1607,1608],{"class":738},"  return",[732,1610,743],{"class":742},[732,1612,1613],{"class":821}," success",[732,1615,825],{"class":742},[732,1617,1619],{"class":1618},"sfNiH"," true",[732,1621,793],{"class":742},[732,1623,1585],{"class":821},[732,1625,825],{"class":742},[732,1627,1559],{"class":746},[732,1629,666],{"class":742},[732,1631,1078],{"class":746},[732,1633,1634],{"class":742}," }\n",[732,1636,1638,1641],{"class":734,"line":1637},13,[732,1639,1640],{"class":742},"}",[732,1642,803],{"class":746},[722,1644,1646],{"className":883,"code":1645,"filename":1186,"language":886,"meta":728,"style":728},"10:23:45.612 INFO [my-app] POST \u002Fapi\u002Fcheckout 200 in 234ms\n  ├─ user: id=1 plan=pro\n  ├─ cart: items=3 total=9999\n  └─ orderId: ord_abc123\n",[637,1647,1648,1657,1673,1692],{"__ignoreMap":728},[732,1649,1650,1652,1654],{"class":734,"line":735},[732,1651,894],{"class":893},[732,1653,1195],{"class":759},[732,1655,1656],{"class":746}," [my-app] POST \u002Fapi\u002Fcheckout 200 in 234ms\n",[732,1658,1659,1661,1664,1667,1670],{"class":734,"line":765},[732,1660,1203],{"class":893},[732,1662,1663],{"class":759}," user:",[732,1665,1666],{"class":759}," id=",[732,1668,1669],{"class":1130},"1",[732,1671,1672],{"class":759}," plan=pro\n",[732,1674,1675,1677,1680,1683,1686,1689],{"class":734,"line":772},[732,1676,1203],{"class":893},[732,1678,1679],{"class":759}," cart:",[732,1681,1682],{"class":759}," items=",[732,1684,1685],{"class":1130},"3",[732,1687,1688],{"class":759}," total=",[732,1690,1691],{"class":1130},"9999\n",[732,1693,1694,1696,1699],{"class":734,"line":806},[732,1695,1224],{"class":893},[732,1697,1698],{"class":759}," orderId:",[732,1700,1701],{"class":759}," ord_abc123\n",[627,1703,1706,1708,1709,666],{"color":1704,"icon":1705},"success","i-lucide-check",[637,1707,639],{}," doesn't create a logger, the framework middleware already did that. It just retrieves it from the event context so you can add data with ",[637,1710,1711],{},"set()",[1713,1714,1716],"h3",{"id":1715},"when-to-use-what","When to use what",[1718,1719,1720,1743],"table",{},[1721,1722,1723],"thead",{},[1724,1725,1726,1732,1739],"tr",{},[1727,1728,1729,1730],"th",{},"Use ",[637,1731,643],{},[1727,1733,1729,1734,1736,1737],{},[637,1735,1244],{}," \u002F ",[637,1738,1264],{},[1727,1740,1729,1741],{},[637,1742,1371],{},[1744,1745,1746,1758,1769],"tbody",{},[1724,1747,1748,1752,1755],{},[1749,1750,1751],"td",{},"Quick one-off events",[1749,1753,1754],{},"Scripts, jobs, workers, queues, HTTP without a framework",[1749,1756,1757],{},"API routes with a framework integration",[1724,1759,1760,1763,1766],{},[1749,1761,1762],{},"No context accumulation needed",[1749,1764,1765],{},"Accumulate context over an operation",[1749,1767,1768],{},"Retrieve the request-scoped logger",[1724,1770,1771,1774,1777],{},[1749,1772,1773],{},"Client-side logging",[1749,1775,1776],{},"Wide events (one log per operation)",[1749,1778,1779],{},"Access the auto-managed wide event",[1713,1781,1783],{"id":1782},"service-identification","Service Identification",[618,1785,1786],{},"In multi-service architectures, differentiate which service a log belongs to using either route-based configuration or explicit service names.",[1788,1789,1791],"h4",{"id":1790},"route-based-configuration","Route-Based Configuration",[618,1793,1794,1795,825],{},"Configure service names per route pattern in your ",[637,1796,1797],{},"nuxt.config.ts",[722,1799,1801],{"className":724,"code":1800,"filename":1797,"language":727,"meta":728,"style":728},"export default defineNuxtConfig({\n  modules: ['evlog\u002Fnuxt'],\n\n  evlog: {\n    env: {\n      service: 'default-service',\n    },\n    routes: {\n      '\u002Fapi\u002Fauth\u002F**': { service: 'auth-service' },\n      '\u002Fapi\u002Fpayment\u002F**': { service: 'payment-service' },\n      '\u002Fapi\u002Fbooking\u002F**': { service: 'booking-service' },\n    },\n  },\n})\n",[637,1802,1803,1817,1840,1844,1853,1862,1878,1883,1892,1920,1946,1972,1976,1981],{"__ignoreMap":728},[732,1804,1805,1807,1809,1812,1814],{"class":734,"line":735},[732,1806,1408],{"class":738},[732,1808,1411],{"class":738},[732,1810,1811],{"class":779}," defineNuxtConfig",[732,1813,782],{"class":746},[732,1815,1816],{"class":742},"{\n",[732,1818,1819,1822,1824,1827,1829,1832,1834,1837],{"class":734,"line":765},[732,1820,1821],{"class":821},"  modules",[732,1823,825],{"class":742},[732,1825,1826],{"class":746}," [",[732,1828,785],{"class":742},[732,1830,1831],{"class":759},"evlog\u002Fnuxt",[732,1833,785],{"class":742},[732,1835,1836],{"class":746},"]",[732,1838,1839],{"class":742},",\n",[732,1841,1842],{"class":734,"line":772},[732,1843,769],{"emptyLinePlaceholder":768},[732,1845,1846,1849,1851],{"class":734,"line":806},[732,1847,1848],{"class":821},"  evlog",[732,1850,825],{"class":742},[732,1852,1435],{"class":742},[732,1854,1855,1858,1860],{"class":734,"line":853},[732,1856,1857],{"class":821},"    env",[732,1859,825],{"class":742},[732,1861,1435],{"class":742},[732,1863,1864,1867,1869,1871,1874,1876],{"class":734,"line":1099},[732,1865,1866],{"class":821},"      service",[732,1868,825],{"class":742},[732,1870,756],{"class":742},[732,1872,1873],{"class":759},"default-service",[732,1875,785],{"class":742},[732,1877,1839],{"class":742},[732,1879,1880],{"class":734,"line":1104},[732,1881,1882],{"class":742},"    },\n",[732,1884,1885,1888,1890],{"class":734,"line":1140},[732,1886,1887],{"class":821},"    routes",[732,1889,825],{"class":742},[732,1891,1435],{"class":742},[732,1893,1894,1897,1900,1902,1904,1906,1908,1910,1912,1915,1917],{"class":734,"line":1172},[732,1895,1896],{"class":742},"      '",[732,1898,1899],{"class":821},"\u002Fapi\u002Fauth\u002F**",[732,1901,785],{"class":742},[732,1903,825],{"class":742},[732,1905,743],{"class":742},[732,1907,1029],{"class":821},[732,1909,825],{"class":742},[732,1911,756],{"class":742},[732,1913,1914],{"class":759},"auth-service",[732,1916,785],{"class":742},[732,1918,1919],{"class":742}," },\n",[732,1921,1922,1924,1927,1929,1931,1933,1935,1937,1939,1942,1944],{"class":734,"line":1572},[732,1923,1896],{"class":742},[732,1925,1926],{"class":821},"\u002Fapi\u002Fpayment\u002F**",[732,1928,785],{"class":742},[732,1930,825],{"class":742},[732,1932,743],{"class":742},[732,1934,1029],{"class":821},[732,1936,825],{"class":742},[732,1938,756],{"class":742},[732,1940,1941],{"class":759},"payment-service",[732,1943,785],{"class":742},[732,1945,1919],{"class":742},[732,1947,1948,1950,1953,1955,1957,1959,1961,1963,1965,1968,1970],{"class":734,"line":1600},[732,1949,1896],{"class":742},[732,1951,1952],{"class":821},"\u002Fapi\u002Fbooking\u002F**",[732,1954,785],{"class":742},[732,1956,825],{"class":742},[732,1958,743],{"class":742},[732,1960,1029],{"class":821},[732,1962,825],{"class":742},[732,1964,756],{"class":742},[732,1966,1967],{"class":759},"booking-service",[732,1969,785],{"class":742},[732,1971,1919],{"class":742},[732,1973,1974],{"class":734,"line":1605},[732,1975,1882],{"class":742},[732,1977,1978],{"class":734,"line":1637},[732,1979,1980],{"class":742},"  },\n",[732,1982,1984,1986],{"class":734,"line":1983},14,[732,1985,1640],{"class":742},[732,1987,803],{"class":746},[618,1989,1990],{},"Logs from routes matching these patterns will automatically include the configured service name:",[722,1992,1994],{"className":883,"code":1993,"filename":885,"language":886,"meta":728,"style":728},"21:57:10.442 INFO [auth-service] POST \u002Fapi\u002Fauth\u002Flogin 200 in 1ms\n  ├─ requestId: 88ced16a-bef2-4483-86cb-2b4fb677ea52\n  ├─ user: id=user_123 email=demo@example.com\n  └─ action: login\n",[637,1995,1996,2006,2016,2028],{"__ignoreMap":728},[732,1997,1998,2001,2003],{"class":734,"line":735},[732,1999,2000],{"class":893},"21:57:10.442",[732,2002,1195],{"class":759},[732,2004,2005],{"class":746}," [auth-service] POST \u002Fapi\u002Fauth\u002Flogin 200 in 1ms\n",[732,2007,2008,2010,2013],{"class":734,"line":765},[732,2009,1203],{"class":893},[732,2011,2012],{"class":759}," requestId:",[732,2014,2015],{"class":759}," 88ced16a-bef2-4483-86cb-2b4fb677ea52\n",[732,2017,2018,2020,2022,2025],{"class":734,"line":772},[732,2019,1203],{"class":893},[732,2021,1663],{"class":759},[732,2023,2024],{"class":759}," id=user_123",[732,2026,2027],{"class":759}," email=demo@example.com\n",[732,2029,2030,2032,2035],{"class":734,"line":806},[732,2031,1224],{"class":893},[732,2033,2034],{"class":759}," action:",[732,2036,2037],{"class":759}," login\n",[1788,2039,2041],{"id":2040},"explicit-service-parameter","Explicit Service Parameter",[618,2043,2044,2045,825],{},"Override the service name for specific routes using the second parameter of ",[637,2046,639],{},[722,2048,2051],{"className":724,"code":2049,"filename":2050,"language":727,"meta":728,"style":728},"import { useLogger } from 'evlog'\n\nexport default defineEventHandler((event) => {\n  const log = useLogger(event, 'legacy-service')\n\n  log.set({ action: 'process_legacy_request' })\n\n  return { success: true }\n})\n","server\u002Fapi\u002Flegacy\u002Fprocess.post.ts",[637,2052,2053,2071,2075,2095,2120,2124,2151,2155,2169],{"__ignoreMap":728},[732,2054,2055,2057,2059,2061,2063,2065,2067,2069],{"class":734,"line":735},[732,2056,739],{"class":738},[732,2058,743],{"class":742},[732,2060,1389],{"class":746},[732,2062,750],{"class":742},[732,2064,753],{"class":738},[732,2066,756],{"class":742},[732,2068,655],{"class":759},[732,2070,762],{"class":742},[732,2072,2073],{"class":734,"line":765},[732,2074,769],{"emptyLinePlaceholder":768},[732,2076,2077,2079,2081,2083,2085,2087,2089,2091,2093],{"class":734,"line":772},[732,2078,1408],{"class":738},[732,2080,1411],{"class":738},[732,2082,1414],{"class":779},[732,2084,782],{"class":746},[732,2086,782],{"class":742},[732,2088,1426],{"class":1425},[732,2090,1429],{"class":742},[732,2092,1432],{"class":1053},[732,2094,1435],{"class":742},[732,2096,2097,2099,2101,2103,2105,2107,2109,2111,2113,2116,2118],{"class":734,"line":806},[732,2098,1440],{"class":1053},[732,2100,747],{"class":746},[732,2102,1445],{"class":742},[732,2104,1389],{"class":779},[732,2106,782],{"class":821},[732,2108,1426],{"class":746},[732,2110,793],{"class":742},[732,2112,756],{"class":742},[732,2114,2115],{"class":759},"legacy-service",[732,2117,785],{"class":742},[732,2119,803],{"class":821},[732,2121,2122],{"class":734,"line":853},[732,2123,769],{"emptyLinePlaceholder":768},[732,2125,2126,2128,2130,2132,2134,2136,2138,2140,2142,2145,2147,2149],{"class":734,"line":1099},[732,2127,1462],{"class":746},[732,2129,666],{"class":742},[732,2131,1111],{"class":779},[732,2133,782],{"class":821},[732,2135,818],{"class":742},[732,2137,822],{"class":821},[732,2139,825],{"class":742},[732,2141,756],{"class":742},[732,2143,2144],{"class":759},"process_legacy_request",[732,2146,785],{"class":742},[732,2148,750],{"class":742},[732,2150,803],{"class":821},[732,2152,2153],{"class":734,"line":1104},[732,2154,769],{"emptyLinePlaceholder":768},[732,2156,2157,2159,2161,2163,2165,2167],{"class":734,"line":1140},[732,2158,1608],{"class":738},[732,2160,743],{"class":742},[732,2162,1613],{"class":821},[732,2164,825],{"class":742},[732,2166,1619],{"class":1618},[732,2168,1634],{"class":742},[732,2170,2171,2173],{"class":734,"line":1172},[732,2172,1640],{"class":742},[732,2174,803],{"class":746},[627,2176,2177,2180,2181,2183,2184,2187],{"color":629,"icon":13},[632,2178,2179],{},"Priority order:"," Explicit ",[637,2182,639],{}," parameter > Route configuration > ",[637,2185,2186],{},"env.service"," > Auto-detected from environment",[711,2189,2191],{"id":2190},"createerror-structured-errors","createError (Structured Errors)",[618,2193,1729,2194,2197],{},[637,2195,2196],{},"createError()"," to throw errors with actionable context:",[719,2199,2200,2321],{},[722,2201,2203],{"className":724,"code":2202,"filename":1378,"language":727,"meta":728,"style":728},"import { createError } from 'evlog'\n\nthrow createError({\n  message: 'Payment failed',\n  status: 402,\n  why: 'Card declined by issuer',\n  fix: 'Try a different payment method',\n  link: 'https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined',\n})\n",[637,2204,2205,2224,2228,2239,2255,2267,2283,2299,2315],{"__ignoreMap":728},[732,2206,2207,2209,2211,2214,2216,2218,2220,2222],{"class":734,"line":735},[732,2208,739],{"class":738},[732,2210,743],{"class":742},[732,2212,2213],{"class":746}," createError",[732,2215,750],{"class":742},[732,2217,753],{"class":738},[732,2219,756],{"class":742},[732,2221,655],{"class":759},[732,2223,762],{"class":742},[732,2225,2226],{"class":734,"line":765},[732,2227,769],{"emptyLinePlaceholder":768},[732,2229,2230,2233,2235,2237],{"class":734,"line":772},[732,2231,2232],{"class":738},"throw",[732,2234,2213],{"class":779},[732,2236,782],{"class":746},[732,2238,1816],{"class":742},[732,2240,2241,2244,2246,2248,2251,2253],{"class":734,"line":806},[732,2242,2243],{"class":821},"  message",[732,2245,825],{"class":742},[732,2247,756],{"class":742},[732,2249,2250],{"class":759},"Payment failed",[732,2252,785],{"class":742},[732,2254,1839],{"class":742},[732,2256,2257,2260,2262,2265],{"class":734,"line":853},[732,2258,2259],{"class":821},"  status",[732,2261,825],{"class":742},[732,2263,2264],{"class":1130}," 402",[732,2266,1839],{"class":742},[732,2268,2269,2272,2274,2276,2279,2281],{"class":734,"line":1099},[732,2270,2271],{"class":821},"  why",[732,2273,825],{"class":742},[732,2275,756],{"class":742},[732,2277,2278],{"class":759},"Card declined by issuer",[732,2280,785],{"class":742},[732,2282,1839],{"class":742},[732,2284,2285,2288,2290,2292,2295,2297],{"class":734,"line":1104},[732,2286,2287],{"class":821},"  fix",[732,2289,825],{"class":742},[732,2291,756],{"class":742},[732,2293,2294],{"class":759},"Try a different payment method",[732,2296,785],{"class":742},[732,2298,1839],{"class":742},[732,2300,2301,2304,2306,2308,2311,2313],{"class":734,"line":1140},[732,2302,2303],{"class":821},"  link",[732,2305,825],{"class":742},[732,2307,756],{"class":742},[732,2309,2310],{"class":759},"https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined",[732,2312,785],{"class":742},[732,2314,1839],{"class":742},[732,2316,2317,2319],{"class":734,"line":1172},[732,2318,1640],{"class":742},[732,2320,803],{"class":746},[722,2322,2327],{"className":2323,"code":2324,"filename":2325,"language":2326,"meta":728,"style":728},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"statusCode\": 402,\n  \"message\": \"Payment failed\",\n  \"data\": {\n    \"why\": \"Card declined by issuer\",\n    \"fix\": \"Try a different payment method\",\n    \"link\": \"https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined\"\n  }\n}\n","Response","json",[637,2328,2329,2333,2350,2370,2383,2402,2420,2437,2442],{"__ignoreMap":728},[732,2330,2331],{"class":734,"line":735},[732,2332,1816],{"class":742},[732,2334,2335,2338,2341,2344,2346,2348],{"class":734,"line":765},[732,2336,2337],{"class":742},"  \"",[732,2339,2340],{"class":1053},"statusCode",[732,2342,2343],{"class":742},"\"",[732,2345,825],{"class":742},[732,2347,2264],{"class":1130},[732,2349,1839],{"class":742},[732,2351,2352,2354,2357,2359,2361,2364,2366,2368],{"class":734,"line":772},[732,2353,2337],{"class":742},[732,2355,2356],{"class":1053},"message",[732,2358,2343],{"class":742},[732,2360,825],{"class":742},[732,2362,2363],{"class":742}," \"",[732,2365,2250],{"class":759},[732,2367,2343],{"class":742},[732,2369,1839],{"class":742},[732,2371,2372,2374,2377,2379,2381],{"class":734,"line":806},[732,2373,2337],{"class":742},[732,2375,2376],{"class":1053},"data",[732,2378,2343],{"class":742},[732,2380,825],{"class":742},[732,2382,1435],{"class":742},[732,2384,2385,2388,2390,2392,2394,2396,2398,2400],{"class":734,"line":853},[732,2386,2387],{"class":742},"    \"",[732,2389,659],{"class":893},[732,2391,2343],{"class":742},[732,2393,825],{"class":742},[732,2395,2363],{"class":742},[732,2397,2278],{"class":759},[732,2399,2343],{"class":742},[732,2401,1839],{"class":742},[732,2403,2404,2406,2408,2410,2412,2414,2416,2418],{"class":734,"line":1099},[732,2405,2387],{"class":742},[732,2407,662],{"class":893},[732,2409,2343],{"class":742},[732,2411,825],{"class":742},[732,2413,2363],{"class":742},[732,2415,2294],{"class":759},[732,2417,2343],{"class":742},[732,2419,1839],{"class":742},[732,2421,2422,2424,2426,2428,2430,2432,2434],{"class":734,"line":1104},[732,2423,2387],{"class":742},[732,2425,665],{"class":893},[732,2427,2343],{"class":742},[732,2429,825],{"class":742},[732,2431,2363],{"class":742},[732,2433,2310],{"class":759},[732,2435,2436],{"class":742},"\"\n",[732,2438,2439],{"class":734,"line":1140},[732,2440,2441],{"class":742},"  }\n",[732,2443,2444],{"class":734,"line":1172},[732,2445,2446],{"class":742},"}\n",[1713,2448,2450],{"id":2449},"error-fields","Error Fields",[1718,2452,2453,2466],{},[1721,2454,2455],{},[1724,2456,2457,2460,2463],{},[1727,2458,2459],{},"Field",[1727,2461,2462],{},"Required",[1727,2464,2465],{},"Description",[1744,2467,2468,2480,2493,2504,2515,2526,2538],{},[1724,2469,2470,2474,2477],{},[1749,2471,2472],{},[637,2473,2356],{},[1749,2475,2476],{},"Yes",[1749,2478,2479],{},"What happened (user-facing)",[1724,2481,2482,2487,2490],{},[1749,2483,2484],{},[637,2485,2486],{},"status",[1749,2488,2489],{},"No",[1749,2491,2492],{},"HTTP status code (default: 500)",[1724,2494,2495,2499,2501],{},[1749,2496,2497],{},[637,2498,659],{},[1749,2500,2489],{},[1749,2502,2503],{},"Technical reason (for debugging)",[1724,2505,2506,2510,2512],{},[1749,2507,2508],{},[637,2509,662],{},[1749,2511,2489],{},[1749,2513,2514],{},"Actionable solution",[1724,2516,2517,2521,2523],{},[1749,2518,2519],{},[637,2520,665],{},[1749,2522,2489],{},[1749,2524,2525],{},"Documentation URL for more info",[1724,2527,2528,2533,2535],{},[1749,2529,2530],{},[637,2531,2532],{},"cause",[1749,2534,2489],{},[1749,2536,2537],{},"Original error (if wrapping)",[1724,2539,2540,2545,2547],{},[1749,2541,2542],{},[637,2543,2544],{},"internal",[1749,2546,2489],{},[1749,2548,2549,2550],{},"Backend-only fields for logs and wide events — never included in HTTP JSON or ",[637,2551,2552],{},"parseError()",[1713,2554,2556],{"id":2555},"frontend-integration","Frontend Integration",[618,2558,1729,2559,2561],{},[637,2560,2552],{}," to extract all error fields on the client:",[722,2563,2566],{"className":724,"code":2564,"filename":2565,"language":727,"meta":728,"style":728},"import { parseError } from 'evlog'\n\nexport async function checkout(cart: Cart) {\n  try {\n    await $fetch('\u002Fapi\u002Fcheckout', { method: 'POST', body: cart })\n  } catch (err) {\n    const error = parseError(err)\n\n    toast.add({\n      title: error.message,\n      description: error.why,\n      color: 'error',\n      actions: error.link\n        ? [{ label: 'Learn more', onClick: () => window.open(error.link) }]\n        : undefined,\n    })\n\n    if (error.fix) {\n      console.info(`Fix: ${error.fix}`)\n    }\n  }\n}\n","composables\u002FuseCheckout.ts",[637,2567,2568,2587,2591,2618,2625,2668,2686,2703,2707,2721,2736,2751,2766,2780,2836,2845,2853,2858,2876,2908,2914,2919],{"__ignoreMap":728},[732,2569,2570,2572,2574,2577,2579,2581,2583,2585],{"class":734,"line":735},[732,2571,739],{"class":738},[732,2573,743],{"class":742},[732,2575,2576],{"class":746}," parseError",[732,2578,750],{"class":742},[732,2580,753],{"class":738},[732,2582,756],{"class":742},[732,2584,655],{"class":759},[732,2586,762],{"class":742},[732,2588,2589],{"class":734,"line":765},[732,2590,769],{"emptyLinePlaceholder":768},[732,2592,2593,2595,2598,2601,2604,2606,2609,2611,2614,2616],{"class":734,"line":772},[732,2594,1408],{"class":738},[732,2596,2597],{"class":1053}," async",[732,2599,2600],{"class":1053}," function",[732,2602,2603],{"class":779}," checkout",[732,2605,782],{"class":742},[732,2607,2608],{"class":1425},"cart",[732,2610,825],{"class":742},[732,2612,2613],{"class":893}," Cart",[732,2615,1429],{"class":742},[732,2617,1435],{"class":742},[732,2619,2620,2623],{"class":734,"line":806},[732,2621,2622],{"class":738},"  try",[732,2624,1435],{"class":742},[732,2626,2627,2630,2633,2635,2637,2639,2641,2643,2645,2647,2649,2651,2653,2655,2657,2660,2662,2664,2666],{"class":734,"line":853},[732,2628,2629],{"class":738},"    await",[732,2631,2632],{"class":779}," $fetch",[732,2634,782],{"class":821},[732,2636,785],{"class":742},[732,2638,1341],{"class":759},[732,2640,785],{"class":742},[732,2642,793],{"class":742},[732,2644,743],{"class":742},[732,2646,1320],{"class":821},[732,2648,825],{"class":742},[732,2650,756],{"class":742},[732,2652,1327],{"class":759},[732,2654,785],{"class":742},[732,2656,793],{"class":742},[732,2658,2659],{"class":821}," body",[732,2661,825],{"class":742},[732,2663,1520],{"class":746},[732,2665,750],{"class":742},[732,2667,803],{"class":821},[732,2669,2670,2673,2676,2678,2681,2684],{"class":734,"line":1099},[732,2671,2672],{"class":742},"  }",[732,2674,2675],{"class":738}," catch",[732,2677,1422],{"class":821},[732,2679,2680],{"class":746},"err",[732,2682,2683],{"class":821},") ",[732,2685,1816],{"class":742},[732,2687,2688,2691,2693,2695,2697,2699,2701],{"class":734,"line":1104},[732,2689,2690],{"class":1053},"    const",[732,2692,837],{"class":746},[732,2694,1445],{"class":742},[732,2696,2576],{"class":779},[732,2698,782],{"class":821},[732,2700,2680],{"class":746},[732,2702,803],{"class":821},[732,2704,2705],{"class":734,"line":1140},[732,2706,769],{"emptyLinePlaceholder":768},[732,2708,2709,2712,2714,2717,2719],{"class":734,"line":1172},[732,2710,2711],{"class":746},"    toast",[732,2713,666],{"class":742},[732,2715,2716],{"class":779},"add",[732,2718,782],{"class":821},[732,2720,1816],{"class":742},[732,2722,2723,2726,2728,2730,2732,2734],{"class":734,"line":1572},[732,2724,2725],{"class":821},"      title",[732,2727,825],{"class":742},[732,2729,837],{"class":746},[732,2731,666],{"class":742},[732,2733,2356],{"class":746},[732,2735,1839],{"class":742},[732,2737,2738,2741,2743,2745,2747,2749],{"class":734,"line":1600},[732,2739,2740],{"class":821},"      description",[732,2742,825],{"class":742},[732,2744,837],{"class":746},[732,2746,666],{"class":742},[732,2748,659],{"class":746},[732,2750,1839],{"class":742},[732,2752,2753,2756,2758,2760,2762,2764],{"class":734,"line":1605},[732,2754,2755],{"class":821},"      color",[732,2757,825],{"class":742},[732,2759,756],{"class":742},[732,2761,813],{"class":759},[732,2763,785],{"class":742},[732,2765,1839],{"class":742},[732,2767,2768,2771,2773,2775,2777],{"class":734,"line":1637},[732,2769,2770],{"class":821},"      actions",[732,2772,825],{"class":742},[732,2774,837],{"class":746},[732,2776,666],{"class":742},[732,2778,2779],{"class":746},"link\n",[732,2781,2782,2785,2787,2789,2792,2794,2796,2799,2801,2803,2806,2808,2811,2813,2816,2818,2821,2823,2825,2827,2829,2831,2833],{"class":734,"line":1983},[732,2783,2784],{"class":742},"        ?",[732,2786,1826],{"class":821},[732,2788,818],{"class":742},[732,2790,2791],{"class":821}," label",[732,2793,825],{"class":742},[732,2795,756],{"class":742},[732,2797,2798],{"class":759},"Learn more",[732,2800,785],{"class":742},[732,2802,793],{"class":742},[732,2804,2805],{"class":779}," onClick",[732,2807,825],{"class":742},[732,2809,2810],{"class":742}," ()",[732,2812,1432],{"class":1053},[732,2814,2815],{"class":746}," window",[732,2817,666],{"class":742},[732,2819,2820],{"class":779},"open",[732,2822,782],{"class":821},[732,2824,813],{"class":746},[732,2826,666],{"class":742},[732,2828,665],{"class":746},[732,2830,2683],{"class":821},[732,2832,1640],{"class":742},[732,2834,2835],{"class":821},"]\n",[732,2837,2839,2842],{"class":734,"line":2838},15,[732,2840,2841],{"class":742},"        :",[732,2843,2844],{"class":742}," undefined,\n",[732,2846,2848,2851],{"class":734,"line":2847},16,[732,2849,2850],{"class":742},"    }",[732,2852,803],{"class":821},[732,2854,2856],{"class":734,"line":2855},17,[732,2857,769],{"emptyLinePlaceholder":768},[732,2859,2861,2864,2866,2868,2870,2872,2874],{"class":734,"line":2860},18,[732,2862,2863],{"class":738},"    if",[732,2865,1422],{"class":821},[732,2867,813],{"class":746},[732,2869,666],{"class":742},[732,2871,662],{"class":746},[732,2873,2683],{"class":821},[732,2875,1816],{"class":742},[732,2877,2879,2882,2884,2886,2888,2891,2894,2897,2899,2901,2903,2906],{"class":734,"line":2878},19,[732,2880,2881],{"class":746},"      console",[732,2883,666],{"class":742},[732,2885,629],{"class":779},[732,2887,782],{"class":821},[732,2889,2890],{"class":742},"`",[732,2892,2893],{"class":759},"Fix: ",[732,2895,2896],{"class":742},"${",[732,2898,813],{"class":746},[732,2900,666],{"class":742},[732,2902,662],{"class":746},[732,2904,2905],{"class":742},"}`",[732,2907,803],{"class":821},[732,2909,2911],{"class":734,"line":2910},20,[732,2912,2913],{"class":742},"    }\n",[732,2915,2917],{"class":734,"line":2916},21,[732,2918,2441],{"class":742},[732,2920,2922],{"class":734,"line":2921},22,[732,2923,2446],{"class":742},[711,2925,2927],{"id":2926},"log-client-side","log (Client-Side)",[618,2929,2930,2931,2933],{},"The same ",[637,2932,643],{}," API works on the client side, outputting to the browser console:",[719,2935,2936,3164],{},[722,2937,2942],{"className":2938,"code":2939,"filename":2940,"language":2941,"meta":728,"style":728},"language-vue shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","\u003Cscript setup lang=\"ts\">\nasync function handleCheckout() {\n  log.info('checkout', 'User initiated checkout')\n\n  try {\n    await $fetch('\u002Fapi\u002Fcheckout', { method: 'POST' })\n    log.info({ action: 'checkout', status: 'success' })\n  } catch (err) {\n    log.error({ action: 'checkout', error: 'failed' })\n  }\n}\n\u003C\u002Fscript>\n","components\u002FCheckoutButton.vue","vue",[637,2943,2944,2970,2984,3012,3016,3022,3054,3094,3108,3147,3151,3155],{"__ignoreMap":728},[732,2945,2946,2949,2952,2955,2958,2960,2962,2965,2967],{"class":734,"line":735},[732,2947,2948],{"class":742},"\u003C",[732,2950,2951],{"class":821},"script",[732,2953,2954],{"class":1053}," setup",[732,2956,2957],{"class":1053}," lang",[732,2959,911],{"class":742},[732,2961,2343],{"class":742},[732,2963,2964],{"class":759},"ts",[732,2966,2343],{"class":742},[732,2968,2969],{"class":742},">\n",[732,2971,2972,2974,2976,2979,2982],{"class":734,"line":765},[732,2973,1419],{"class":1053},[732,2975,2600],{"class":1053},[732,2977,2978],{"class":779}," handleCheckout",[732,2980,2981],{"class":742},"()",[732,2983,1435],{"class":742},[732,2985,2986,2988,2990,2992,2994,2996,2999,3001,3003,3005,3008,3010],{"class":734,"line":772},[732,2987,1462],{"class":746},[732,2989,666],{"class":742},[732,2991,629],{"class":779},[732,2993,782],{"class":821},[732,2995,785],{"class":742},[732,2997,2998],{"class":759},"checkout",[732,3000,785],{"class":742},[732,3002,793],{"class":742},[732,3004,756],{"class":742},[732,3006,3007],{"class":759},"User initiated 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log",[732,3060,666],{"class":742},[732,3062,629],{"class":779},[732,3064,782],{"class":821},[732,3066,818],{"class":742},[732,3068,822],{"class":821},[732,3070,825],{"class":742},[732,3072,756],{"class":742},[732,3074,2998],{"class":759},[732,3076,785],{"class":742},[732,3078,793],{"class":742},[732,3080,3081],{"class":821}," 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Everything else on this page is available when you want it, and nothing breaks while you do not.",[618,3339,3340,3343,3344,3347,3348,3351,3352,3354,3355,3357,3358,3360],{},[637,3341,3342],{},"log.info()"," behaves like ",[637,3345,3346],{},"console.log",", so the first commit is a find-and-replace that changes no behaviour. From there, the two that pay for themselves are ",[637,3349,3350],{},"log.set()",", which adds a field to the event already in flight, and ",[637,3353,2196],{},", which attaches a ",[637,3356,659],{}," and a ",[637,3359,662],{}," to a failure instead of a bare stack.",[618,3362,3363,3364,3366,3367,3369,3370,3375],{},"Migrate one handler at a time. A route still calling ",[637,3365,3346],{}," next to a route using ",[637,3368,3350],{}," is a normal intermediate state, not a broken one: they write to the same place and neither knows about the other. 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Score coverage and find entry points that are still dark (",[637,3393,3394],{},"npx @evlog\u002Fcli map",[679,3396,3397,3400],{},[622,3398,3399],{"href":42},"Logging Overview",": Understand all three logging modes",[679,3402,3403,3405],{},[622,3404,51],{"href":52},": Learn how to design effective wide events",[679,3407,3408,3410],{},[622,3409,76],{"href":77},": Add compile-time type safety to your wide events",[679,3412,3413,3415],{},[622,3414,56],{"href":57},": Master error handling with evlog",[679,3417,3418,3420],{},[622,3419,570],{"href":571},": Security guidelines and production tips",[3422,3423,3424],"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 .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}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 .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}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 pre.shiki code .sfNiH, html code.shiki .sfNiH{--shiki-light:#FF5370;--shiki-default:#FF9CAC;--shiki-dark:#FF9CAC}",{"title":728,"searchDepth":765,"depth":765,"links":3426},[3427,3428,3429,3433,3437,3438,3439],{"id":713,"depth":765,"text":714},{"id":963,"depth":765,"text":964},{"id":1364,"depth":765,"text":1365,"children":3430},[3431,3432],{"id":1715,"depth":772,"text":1716},{"id":1782,"depth":772,"text":1783},{"id":2190,"depth":765,"text":2191,"children":3434},[3435,3436],{"id":2449,"depth":772,"text":2450},{"id":2555,"depth":772,"text":2556},{"id":2926,"depth":765,"text":2927},{"id":3333,"depth":765,"text":3334},{"id":3381,"depth":765,"text":3382},"Get up and running with evlog in minutes. 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