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Initialize and create loggers",[599,671,676],{"className":672,"code":673,"filename":674,"language":675,"meta":605,"style":605},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import type { DrainContext } from 'evlog'\nimport { initLogger, log, createLogger } from 'evlog'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createDrainPipeline } from 'evlog\u002Fpipeline'\n\nconst pipeline = createDrainPipeline\u003CDrainContext>({ batch: { size: 10 } })\nconst drain = pipeline(createAxiomDrain())\n\ninitLogger({\n  env: { service: 'my-script', environment: 'production' },\n  drain,\n})\n\n\u002F\u002F Every log is automatically drained\nlog.info({ action: 'sync_started' })\n\nconst syncLog = createLogger({ jobId: 'sync-001', source: 'postgres', target: 's3' })\nsyncLog.set({ recordsSynced: 150 })\nsyncLog.emit() \u002F\u002F drained automatically\n\n\u002F\u002F Flush remaining events before exit\nawait drain.flush()\n","scripts\u002Fsync-job.ts","typescript",[521,677,678,710,741,762,783,790,846,867,872,883,923,932,940,945,952,984,989,1049,1076,1092,1097,1103],{"__ignoreMap":605},[609,679,680,684,687,691,695,698,701,704,707],{"class":611,"line":612},[609,681,683],{"class":682},"s7zQu","import",[609,685,686],{"class":682}," type",[609,688,690],{"class":689},"sMK4o"," {",[609,692,694],{"class":693},"sTEyZ"," DrainContext",[609,696,697],{"class":689}," }",[609,699,700],{"class":682}," from",[609,702,703],{"class":689}," '",[609,705,706],{"class":618},"evlog",[609,708,709],{"class":689},"'\n",[609,711,713,715,717,720,723,726,728,731,733,735,737,739],{"class":611,"line":712},2,[609,714,683],{"class":682},[609,716,690],{"class":689},[609,718,719],{"class":693}," initLogger",[609,721,722],{"class":689},",",[609,724,725],{"class":693}," log",[609,727,722],{"class":689},[609,729,730],{"class":693}," createLogger",[609,732,697],{"class":689},[609,734,700],{"class":682},[609,736,703],{"class":689},[609,738,706],{"class":618},[609,740,709],{"class":689},[609,742,744,746,748,751,753,755,757,760],{"class":611,"line":743},3,[609,745,683],{"class":682},[609,747,690],{"class":689},[609,749,750],{"class":693}," createAxiomDrain",[609,752,697],{"class":689},[609,754,700],{"class":682},[609,756,703],{"class":689},[609,758,759],{"class":618},"evlog\u002Faxiom",[609,761,709],{"class":689},[609,763,765,767,769,772,774,776,778,781],{"class":611,"line":764},4,[609,766,683],{"class":682},[609,768,690],{"class":689},[609,770,771],{"class":693}," createDrainPipeline",[609,773,697],{"class":689},[609,775,700],{"class":682},[609,777,703],{"class":689},[609,779,780],{"class":618},"evlog\u002Fpipeline",[609,782,709],{"class":689},[609,784,786],{"class":611,"line":785},5,[609,787,789],{"emptyLinePlaceholder":788},true,"\n",[609,791,793,797,800,803,806,809,812,815,818,821,825,828,830,833,835,839,841,843],{"class":611,"line":792},6,[609,794,796],{"class":795},"spNyl","const",[609,798,799],{"class":693}," pipeline ",[609,801,802],{"class":689},"=",[609,804,771],{"class":805},"s2Zo4",[609,807,808],{"class":689},"\u003C",[609,810,811],{"class":615},"DrainContext",[609,813,814],{"class":689},">",[609,816,817],{"class":693},"(",[609,819,820],{"class":689},"{",[609,822,824],{"class":823},"swJcz"," batch",[609,826,827],{"class":689},":",[609,829,690],{"class":689},[609,831,832],{"class":823}," size",[609,834,827],{"class":689},[609,836,838],{"class":837},"sbssI"," 10",[609,840,697],{"class":689},[609,842,697],{"class":689},[609,844,845],{"class":693},")\n",[609,847,849,851,854,856,859,861,864],{"class":611,"line":848},7,[609,850,796],{"class":795},[609,852,853],{"class":693}," drain ",[609,855,802],{"class":689},[609,857,858],{"class":805}," pipeline",[609,860,817],{"class":693},[609,862,863],{"class":805},"createAxiomDrain",[609,865,866],{"class":693},"())\n",[609,868,870],{"class":611,"line":869},8,[609,871,789],{"emptyLinePlaceholder":788},[609,873,875,878,880],{"class":611,"line":874},9,[609,876,877],{"class":805},"initLogger",[609,879,817],{"class":693},[609,881,882],{"class":689},"{\n",[609,884,886,889,891,893,896,898,900,903,906,908,911,913,915,918,920],{"class":611,"line":885},10,[609,887,888],{"class":823},"  env",[609,890,827],{"class":689},[609,892,690],{"class":689},[609,894,895],{"class":823}," service",[609,897,827],{"class":689},[609,899,703],{"class":689},[609,901,902],{"class":618},"my-script",[609,904,905],{"class":689},"'",[609,907,722],{"class":689},[609,909,910],{"class":823}," environment",[609,912,827],{"class":689},[609,914,703],{"class":689},[609,916,917],{"class":618},"production",[609,919,905],{"class":689},[609,921,922],{"class":689}," },\n",[609,924,926,929],{"class":611,"line":925},11,[609,927,928],{"class":693},"  drain",[609,930,931],{"class":689},",\n",[609,933,935,938],{"class":611,"line":934},12,[609,936,937],{"class":689},"}",[609,939,845],{"class":693},[609,941,943],{"class":611,"line":942},13,[609,944,789],{"emptyLinePlaceholder":788},[609,946,948],{"class":611,"line":947},14,[609,949,951],{"class":950},"sHwdD","\u002F\u002F Every log is automatically drained\n",[609,953,955,958,961,964,966,968,971,973,975,978,980,982],{"class":611,"line":954},15,[609,956,957],{"class":693},"log",[609,959,960],{"class":689},".",[609,962,963],{"class":805},"info",[609,965,817],{"class":693},[609,967,820],{"class":689},[609,969,970],{"class":823}," action",[609,972,827],{"class":689},[609,974,703],{"class":689},[609,976,977],{"class":618},"sync_started",[609,979,905],{"class":689},[609,981,697],{"class":689},[609,983,845],{"class":693},[609,985,987],{"class":611,"line":986},16,[609,988,789],{"emptyLinePlaceholder":788},[609,990,992,994,997,999,1001,1003,1005,1008,1010,1012,1015,1017,1019,1022,1024,1026,1029,1031,1033,1036,1038,1040,1043,1045,1047],{"class":611,"line":991},17,[609,993,796],{"class":795},[609,995,996],{"class":693}," syncLog ",[609,998,802],{"class":689},[609,1000,730],{"class":805},[609,1002,817],{"class":693},[609,1004,820],{"class":689},[609,1006,1007],{"class":823}," jobId",[609,1009,827],{"class":689},[609,1011,703],{"class":689},[609,1013,1014],{"class":618},"sync-001",[609,1016,905],{"class":689},[609,1018,722],{"class":689},[609,1020,1021],{"class":823}," source",[609,1023,827],{"class":689},[609,1025,703],{"class":689},[609,1027,1028],{"class":618},"postgres",[609,1030,905],{"class":689},[609,1032,722],{"class":689},[609,1034,1035],{"class":823}," target",[609,1037,827],{"class":689},[609,1039,703],{"class":689},[609,1041,1042],{"class":618},"s3",[609,1044,905],{"class":689},[609,1046,697],{"class":689},[609,1048,845],{"class":693},[609,1050,1052,1055,1057,1060,1062,1064,1067,1069,1072,1074],{"class":611,"line":1051},18,[609,1053,1054],{"class":693},"syncLog",[609,1056,960],{"class":689},[609,1058,1059],{"class":805},"set",[609,1061,817],{"class":693},[609,1063,820],{"class":689},[609,1065,1066],{"class":823}," recordsSynced",[609,1068,827],{"class":689},[609,1070,1071],{"class":837}," 150",[609,1073,697],{"class":689},[609,1075,845],{"class":693},[609,1077,1079,1081,1083,1086,1089],{"class":611,"line":1078},19,[609,1080,1054],{"class":693},[609,1082,960],{"class":689},[609,1084,1085],{"class":805},"emit",[609,1087,1088],{"class":693},"() ",[609,1090,1091],{"class":950},"\u002F\u002F drained automatically\n",[609,1093,1095],{"class":611,"line":1094},20,[609,1096,789],{"emptyLinePlaceholder":788},[609,1098,1100],{"class":611,"line":1099},21,[609,1101,1102],{"class":950},"\u002F\u002F Flush remaining events before exit\n",[609,1104,1106,1109,1112,1114,1117],{"class":611,"line":1105},22,[609,1107,1108],{"class":682},"await",[609,1110,1111],{"class":693}," drain",[609,1113,960],{"class":689},[609,1115,1116],{"class":805},"flush",[609,1118,1119],{"class":693},"()\n",[530,1121,1122,1123,1126],{"color":963,"icon":13},"Always call ",[521,1124,1125],{},"drain.flush()"," before the process exits to ensure all buffered events are sent.",[530,1128,1129,1133,1134,1140,1141,1144,1145,1148],{"color":963,"icon":496},[1130,1131,1132],"strong",{},"Using vite-node?"," The ",[536,1135,1136,1139],{"href":494},[521,1137,1138],{},"evlog\u002Fvite"," plugin"," replaces the ",[521,1142,1143],{},"initLogger()"," call with compile-time auto-initialization, strips ",[521,1146,1147],{},"log.debug()"," from production builds, and injects source locations.",[587,1150,1152],{"id":1151},"createlogger-vs-createrequestlogger","createLogger vs createRequestLogger",[517,1154,1155],{},"evlog provides two manual logger constructors:",[517,1157,1158,1163],{},[1130,1159,1160],{},[521,1161,1162],{},"createLogger(context)"," - For non-HTTP contexts (scripts, CLI, queues):",[599,1165,1168],{"className":672,"code":1166,"filename":1167,"language":675,"meta":605,"style":605},"import { createLogger } from 'evlog'\n\nconst log = createLogger({ jobId: 'migrate-001', source: 'postgres' })\nlog.set({ recordsProcessed: 500 })\nlog.emit()\n","scripts\u002Fjob.ts",[521,1169,1170,1188,1192,1234,1258],{"__ignoreMap":605},[609,1171,1172,1174,1176,1178,1180,1182,1184,1186],{"class":611,"line":612},[609,1173,683],{"class":682},[609,1175,690],{"class":689},[609,1177,730],{"class":693},[609,1179,697],{"class":689},[609,1181,700],{"class":682},[609,1183,703],{"class":689},[609,1185,706],{"class":618},[609,1187,709],{"class":689},[609,1189,1190],{"class":611,"line":712},[609,1191,789],{"emptyLinePlaceholder":788},[609,1193,1194,1196,1199,1201,1203,1205,1207,1209,1211,1213,1216,1218,1220,1222,1224,1226,1228,1230,1232],{"class":611,"line":743},[609,1195,796],{"class":795},[609,1197,1198],{"class":693}," log ",[609,1200,802],{"class":689},[609,1202,730],{"class":805},[609,1204,817],{"class":693},[609,1206,820],{"class":689},[609,1208,1007],{"class":823},[609,1210,827],{"class":689},[609,1212,703],{"class":689},[609,1214,1215],{"class":618},"migrate-001",[609,1217,905],{"class":689},[609,1219,722],{"class":689},[609,1221,1021],{"class":823},[609,1223,827],{"class":689},[609,1225,703],{"class":689},[609,1227,1028],{"class":618},[609,1229,905],{"class":689},[609,1231,697],{"class":689},[609,1233,845],{"class":693},[609,1235,1236,1238,1240,1242,1244,1246,1249,1251,1254,1256],{"class":611,"line":764},[609,1237,957],{"class":693},[609,1239,960],{"class":689},[609,1241,1059],{"class":805},[609,1243,817],{"class":693},[609,1245,820],{"class":689},[609,1247,1248],{"class":823}," recordsProcessed",[609,1250,827],{"class":689},[609,1252,1253],{"class":837}," 500",[609,1255,697],{"class":689},[609,1257,845],{"class":693},[609,1259,1260,1262,1264,1266],{"class":611,"line":785},[609,1261,957],{"class":693},[609,1263,960],{"class":689},[609,1265,1085],{"class":805},[609,1267,1119],{"class":693},[517,1269,1270,1275],{},[1130,1271,1272],{},[521,1273,1274],{},"createRequestLogger(requestMeta)"," - For HTTP-like contexts where you want method\u002Fpath\u002Fstatus tracking:",[599,1277,1280],{"className":672,"code":1278,"filename":1279,"language":675,"meta":605,"style":605},"import { createRequestLogger } from 'evlog'\n\nconst log = createRequestLogger({\n  method: 'POST',\n  path: '\u002Fwebhook\u002Fstripe',\n})\nlog.set({ event: 'invoice.paid', customerId: 'cus_123' })\nlog.emit()\n","scripts\u002Fwebhook-handler.ts",[521,1281,1282,1301,1305,1319,1335,1351,1357,1399],{"__ignoreMap":605},[609,1283,1284,1286,1288,1291,1293,1295,1297,1299],{"class":611,"line":612},[609,1285,683],{"class":682},[609,1287,690],{"class":689},[609,1289,1290],{"class":693}," createRequestLogger",[609,1292,697],{"class":689},[609,1294,700],{"class":682},[609,1296,703],{"class":689},[609,1298,706],{"class":618},[609,1300,709],{"class":689},[609,1302,1303],{"class":611,"line":712},[609,1304,789],{"emptyLinePlaceholder":788},[609,1306,1307,1309,1311,1313,1315,1317],{"class":611,"line":743},[609,1308,796],{"class":795},[609,1310,1198],{"class":693},[609,1312,802],{"class":689},[609,1314,1290],{"class":805},[609,1316,817],{"class":693},[609,1318,882],{"class":689},[609,1320,1321,1324,1326,1328,1331,1333],{"class":611,"line":764},[609,1322,1323],{"class":823},"  method",[609,1325,827],{"class":689},[609,1327,703],{"class":689},[609,1329,1330],{"class":618},"POST",[609,1332,905],{"class":689},[609,1334,931],{"class":689},[609,1336,1337,1340,1342,1344,1347,1349],{"class":611,"line":785},[609,1338,1339],{"class":823},"  path",[609,1341,827],{"class":689},[609,1343,703],{"class":689},[609,1345,1346],{"class":618},"\u002Fwebhook\u002Fstripe",[609,1348,905],{"class":689},[609,1350,931],{"class":689},[609,1352,1353,1355],{"class":611,"line":792},[609,1354,937],{"class":689},[609,1356,845],{"class":693},[609,1358,1359,1361,1363,1365,1367,1369,1372,1374,1376,1379,1381,1383,1386,1388,1390,1393,1395,1397],{"class":611,"line":848},[609,1360,957],{"class":693},[609,1362,960],{"class":689},[609,1364,1059],{"class":805},[609,1366,817],{"class":693},[609,1368,820],{"class":689},[609,1370,1371],{"class":823}," event",[609,1373,827],{"class":689},[609,1375,703],{"class":689},[609,1377,1378],{"class":618},"invoice.paid",[609,1380,905],{"class":689},[609,1382,722],{"class":689},[609,1384,1385],{"class":823}," customerId",[609,1387,827],{"class":689},[609,1389,703],{"class":689},[609,1391,1392],{"class":618},"cus_123",[609,1394,905],{"class":689},[609,1396,697],{"class":689},[609,1398,845],{"class":693},[609,1400,1401,1403,1405,1407],{"class":611,"line":869},[609,1402,957],{"class":693},[609,1404,960],{"class":689},[609,1406,1085],{"class":805},[609,1408,1119],{"class":693},[517,1410,1411,1412,1415],{},"Both require manual ",[521,1413,1414],{},"log.emit()"," calls since there is no automatic lifecycle to hook into.",[587,1417,46],{"id":1418},"wide-events",[517,1420,1421],{},"Build up context progressively, then emit:",[599,1423,1426],{"className":672,"code":1424,"filename":1425,"language":675,"meta":605,"style":605},"import { initLogger, createLogger } from 'evlog'\n\ninitLogger({\n  env: { service: 'migrate' },\n})\n\nconst log = createLogger({ task: 'user-migration' })\n\nconst users = await db.query('SELECT * FROM legacy_users')\nlog.set({ found: users.length })\n\nlet migrated = 0\nfor (const user of users) {\n  await newDb.upsert({ id: user.id, email: user.email, plan: user.plan })\n  migrated++\n}\n\nlog.set({ migrated, status: 'complete' })\nlog.emit()\n","scripts\u002Fmigrate-users.ts",[521,1427,1428,1450,1454,1462,1483,1489,1493,1523,1527,1558,1587,1591,1604,1624,1686,1694,1699,1703,1736],{"__ignoreMap":605},[609,1429,1430,1432,1434,1436,1438,1440,1442,1444,1446,1448],{"class":611,"line":612},[609,1431,683],{"class":682},[609,1433,690],{"class":689},[609,1435,719],{"class":693},[609,1437,722],{"class":689},[609,1439,730],{"class":693},[609,1441,697],{"class":689},[609,1443,700],{"class":682},[609,1445,703],{"class":689},[609,1447,706],{"class":618},[609,1449,709],{"class":689},[609,1451,1452],{"class":611,"line":712},[609,1453,789],{"emptyLinePlaceholder":788},[609,1455,1456,1458,1460],{"class":611,"line":743},[609,1457,877],{"class":805},[609,1459,817],{"class":693},[609,1461,882],{"class":689},[609,1463,1464,1466,1468,1470,1472,1474,1476,1479,1481],{"class":611,"line":764},[609,1465,888],{"class":823},[609,1467,827],{"class":689},[609,1469,690],{"class":689},[609,1471,895],{"class":823},[609,1473,827],{"class":689},[609,1475,703],{"class":689},[609,1477,1478],{"class":618},"migrate",[609,1480,905],{"class":689},[609,1482,922],{"class":689},[609,1484,1485,1487],{"class":611,"line":785},[609,1486,937],{"class":689},[609,1488,845],{"class":693},[609,1490,1491],{"class":611,"line":792},[609,1492,789],{"emptyLinePlaceholder":788},[609,1494,1495,1497,1499,1501,1503,1505,1507,1510,1512,1514,1517,1519,1521],{"class":611,"line":848},[609,1496,796],{"class":795},[609,1498,1198],{"class":693},[609,1500,802],{"class":689},[609,1502,730],{"class":805},[609,1504,817],{"class":693},[609,1506,820],{"class":689},[609,1508,1509],{"class":823}," 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const result = await externalApi.sync()\n  if (!result.ok) {\n    throw createError({\n      message: 'Sync failed',\n      why: `API returned ${result.status}`,\n      fix: 'Check the API status page and retry',\n    })\n  }\n} catch (error) {\n  log.error(error instanceof Error ? error : new Error(String(error)))\n  log.emit()\n\n  const { message, why, fix } = parseError(error)\n  console.error(`${message}\\nWhy: ${why}\\nFix: ${fix}`)\n  process.exit(1)\n}\n",[521,1819,1820,1844,1848,1856,1879,1902,1913,1929,1957,1973,1980,1985,1997,2043,2053,2057,2088,2134,2151],{"__ignoreMap":605},[609,1821,1822,1824,1826,1829,1831,1834,1836,1838,1840,1842],{"class":611,"line":612},[609,1823,683],{"class":682},[609,1825,690],{"class":689},[609,1827,1828],{"class":693}," createError",[609,1830,722],{"class":689},[609,1832,1833],{"class":693}," 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if",[609,1885,538],{"class":823},[609,1887,1888],{"class":689},"!",[609,1890,1891],{"class":693},"result",[609,1893,960],{"class":689},[609,1895,1896],{"class":693},"ok",[609,1898,1899],{"class":823},") ",[609,1901,882],{"class":689},[609,1903,1904,1907,1909,1911],{"class":611,"line":792},[609,1905,1906],{"class":682},"    throw",[609,1908,1828],{"class":805},[609,1910,817],{"class":823},[609,1912,882],{"class":689},[609,1914,1915,1918,1920,1922,1925,1927],{"class":611,"line":848},[609,1916,1917],{"class":823},"      message",[609,1919,827],{"class":689},[609,1921,703],{"class":689},[609,1923,1924],{"class":618},"Sync failed",[609,1926,905],{"class":689},[609,1928,931],{"class":689},[609,1930,1931,1934,1936,1939,1942,1945,1947,1949,1952,1955],{"class":611,"line":869},[609,1932,1933],{"class":823},"      why",[609,1935,827],{"class":689},[609,1937,1938],{"class":689}," `",[609,1940,1941],{"class":618},"API returned 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fix",[609,2077,697],{"class":689},[609,2079,1866],{"class":689},[609,2081,1833],{"class":805},[609,2083,817],{"class":823},[609,2085,2006],{"class":693},[609,2087,845],{"class":823},[609,2089,2090,2093,2095,2097,2099,2102,2105,2107,2110,2113,2115,2118,2120,2122,2125,2127,2130,2132],{"class":611,"line":991},[609,2091,2092],{"class":693},"  console",[609,2094,960],{"class":689},[609,2096,2006],{"class":805},[609,2098,817],{"class":823},[609,2100,2101],{"class":689},"`${",[609,2103,2104],{"class":693},"message",[609,2106,937],{"class":689},[609,2108,2109],{"class":693},"\\n",[609,2111,2112],{"class":618},"Why: ",[609,2114,1944],{"class":689},[609,2116,2117],{"class":693},"why",[609,2119,937],{"class":689},[609,2121,2109],{"class":693},[609,2123,2124],{"class":618},"Fix: 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'evlog'\nimport { initLogger } from 'evlog'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createDrainPipeline } from 'evlog\u002Fpipeline'\n\nconst pipeline = createDrainPipeline\u003CDrainContext>({\n  batch: { size: 50, intervalMs: 5000 },\n  retry: { maxAttempts: 3 },\n})\nconst drain = pipeline(createAxiomDrain())\n\ninitLogger({\n  env: { service: 'my-script' },\n  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