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When ",[451,784,785],{},"false",", all operations become no-ops",[744,788,789,794,799,802],{},[765,790,791],{},[451,792,793],{},"env",[765,795,796],{},[451,797,798],{},"Partial\u003CEnvironmentContext>",[765,800,801],{},"Auto-detected",[765,803,804],{},"Environment context overrides (see below)",[744,806,807,812,816,821],{},[765,808,809],{},[451,810,811],{},"pretty",[765,813,814],{},[451,815,774],{},[765,817,818,820],{},[451,819,779],{}," in dev",[765,822,823,824],{},"Pretty print with tree formatting. Auto-detected based on ",[451,825,826],{},"NODE_ENV",[744,828,829,834,838,842],{},[765,830,831],{},[451,832,833],{},"silent",[765,835,836],{},[451,837,774],{},[765,839,840],{},[451,841,785],{},[765,843,844],{},"Suppress console output. Events are still built, sampled, and passed to drains",[744,846,847,852,856,860],{},[765,848,849],{},[451,850,851],{},"stringify",[765,853,854],{},[451,855,774],{},[765,857,858],{},[451,859,779],{},[765,861,862,863,865,866,868],{},"Emit JSON strings when ",[451,864,811],{}," is disabled. Set to ",[451,867,785],{}," for Cloudflare Workers",[744,870,871,876,881,886],{},[765,872,873],{},[451,874,875],{},"minLevel",[765,877,878],{},[451,879,880],{},"'debug' | 'info' | 'warn' | 'error'",[765,882,883],{},[451,884,885],{},"'debug'",[765,887,888,889,892,893,896],{},"Minimum severity for the global ",[451,890,891],{},"log"," API only (not ",[451,894,895],{},"createLogger"," \u002F request wide events). Order: debug \u003C info \u003C warn \u003C error",[744,898,899,904,909,914],{},[765,900,901],{},[451,902,903],{},"sampling",[765,905,906],{},[451,907,908],{},"SamplingConfig",[765,910,911],{},[451,912,913],{},"undefined",[765,915,916,917],{},"Head and tail sampling configuration. See ",[918,919,175],"a",{"href":176},[744,921,922,927,932,937],{},[765,923,924],{},[451,925,926],{},"redact",[765,928,929],{},[451,930,931],{},"boolean | RedactConfig",[765,933,934,936],{},[451,935,779],{}," in production",[765,938,939,940,942,943],{},"Enabled by default in production. ",[451,941,785],{}," to disable. Object for fine-grained control. See ",[918,944,197],{"href":198},[744,946,947,952,957,961],{},[765,948,949],{},[451,950,951],{},"drain",[765,953,954],{},[451,955,956],{},"(ctx: DrainContext) => void",[765,958,959],{},[451,960,913],{},[765,962,963],{},"Drain callback for sending events to external services",[965,966,968,970],"h3",{"id":967},"minlevel-vs-sampling",[451,969,875],{}," vs sampling",[972,973,974,1012],"ul",{},[975,976,977,981,982,985,986,989,990,993,994,997,998,1001,1002,1007,1008,1011],"li",{},[437,978,979],{},[451,980,875],{}," is a ",[437,983,984],{},"hard threshold"," on the simple ",[451,987,988],{},"log.*"," API: levels below the threshold are never emitted. It does ",[437,991,992],{},"not"," apply to wide events from ",[451,995,996],{},"useLogger"," \u002F ",[451,999,1000],{},"createLogger().emit()"," — use ",[437,1003,1004],{},[451,1005,1006],{},"sampling.rates"," (and tail ",[451,1009,1010],{},"keep",") for request volume.",[975,1013,1014,1017,1018,1020,1021,1024,1025,1027],{},[437,1015,1016],{},"Head sampling"," (",[451,1019,1006],{},") is ",[437,1022,1023],{},"probabilistic"," on what is already allowed by ",[451,1026,875],{}," for simple logs.",[433,1029,1030,1031,997,1034,1037,1038,1040,1041,1043],{},"Evaluation order for ",[451,1032,1033],{},"log.info",[451,1035,1036],{},"log.debug"," \u002F etc.: ",[451,1039,769],{}," → ",[451,1042,875],{}," → head sampling → output.",[965,1045,1047],{"id":1046},"environment-context","Environment Context",[433,1049,1050,1051,1053,1054,1057],{},"The ",[451,1052,793],{}," option controls the fields included in every log event. Most values are auto-detected from environment variables and ",[451,1055,1056],{},"package.json",".",[738,1059,1060,1074],{},[741,1061,1062],{},[744,1063,1064,1067,1069,1071],{},[747,1065,1066],{},"Field",[747,1068,752],{},[747,1070,755],{},[747,1072,1073],{},"Auto-detected from",[760,1075,1076,1102,1122,1145,1171],{},[744,1077,1078,1083,1088,1093],{},[765,1079,1080],{},[451,1081,1082],{},"service",[765,1084,1085],{},[451,1086,1087],{},"string",[765,1089,1090],{},[451,1091,1092],{},"'app'",[765,1094,1095,1098,1099,1101],{},[451,1096,1097],{},"SERVICE_NAME",", ",[451,1100,1056],{}," name",[744,1103,1104,1109,1113,1118],{},[765,1105,1106],{},[451,1107,1108],{},"environment",[765,1110,1111],{},[451,1112,1087],{},[765,1114,1115],{},[451,1116,1117],{},"'development'",[765,1119,1120],{},[451,1121,826],{},[744,1123,1124,1129,1133,1137],{},[765,1125,1126],{},[451,1127,1128],{},"version",[765,1130,1131],{},[451,1132,1087],{},[765,1134,1135],{},[451,1136,913],{},[765,1138,1139,1098,1142,1144],{},[451,1140,1141],{},"APP_VERSION",[451,1143,1056],{}," version",[744,1146,1147,1152,1156,1160],{},[765,1148,1149],{},[451,1150,1151],{},"commitHash",[765,1153,1154],{},[451,1155,1087],{},[765,1157,1158],{},[451,1159,913],{},[765,1161,1162,1098,1165,1098,1168],{},[451,1163,1164],{},"COMMIT_SHA",[451,1166,1167],{},"GIT_COMMIT",[451,1169,1170],{},"VERCEL_GIT_COMMIT_SHA",[744,1172,1173,1178,1182,1186],{},[765,1174,1175],{},[451,1176,1177],{},"region",[765,1179,1180],{},[451,1181,1087],{},[765,1183,1184],{},[451,1185,913],{},[765,1187,1188,1098,1191,1098,1194],{},[451,1189,1190],{},"FLY_REGION",[451,1192,1193],{},"AWS_REGION",[451,1195,1196],{},"VERCEL_REGION",[965,1198,1200],{"id":1199},"silent-mode","Silent Mode",[433,1202,1203,1204,1206],{},"Use ",[451,1205,833],{}," when your deployment platform captures stdout as its primary log ingestion (GCP Cloud Run, AWS Lambda, Fly.io, Railway, etc.) and you want a drain adapter to control the output format.",[463,1208,1210],{"className":465,"code":1209,"filename":467,"language":468,"meta":469,"style":469},"import { initLogger } from 'evlog'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\ninitLogger({\n  silent: process.env.NODE_ENV === 'production',\n  drain: createAxiomDrain(),\n})\n",[451,1211,1212,1230,1248,1252,1260,1289,1301],{"__ignoreMap":469},[473,1213,1214,1216,1218,1220,1222,1224,1226,1228],{"class":475,"line":476},[473,1215,480],{"class":479},[473,1217,484],{"class":483},[473,1219,488],{"class":487},[473,1221,491],{"class":483},[473,1223,494],{"class":479},[473,1225,497],{"class":483},[473,1227,501],{"class":500},[473,1229,504],{"class":483},[473,1231,1232,1234,1236,1238,1240,1242,1244,1246],{"class":475,"line":507},[473,1233,480],{"class":479},[473,1235,484],{"class":483},[473,1237,514],{"class":487},[473,1239,491],{"class":483},[473,1241,494],{"class":479},[473,1243,497],{"class":483},[473,1245,523],{"class":500},[473,1247,504],{"class":483},[473,1249,1250],{"class":475,"line":528},[473,1251,532],{"emptyLinePlaceholder":531},[473,1253,1254,1256,1258],{"class":475,"line":535},[473,1255,453],{"class":538},[473,1257,541],{"class":487},[473,1259,544],{"class":483},[473,1261,1262,1264,1266,1269,1271,1273,1275,1278,1281,1283,1285,1287],{"class":475,"line":547},[473,1263,621],{"class":550},[473,1265,554],{"class":483},[473,1267,1268],{"class":487}," process",[473,1270,1057],{"class":483},[473,1272,793],{"class":487},[473,1274,1057],{"class":483},[473,1276,1277],{"class":487},"NODE_ENV ",[473,1279,1280],{"class":483},"===",[473,1282,497],{"class":483},[473,1284,597],{"class":500},[473,1286,584],{"class":483},[473,1288,561],{"class":483},[473,1290,1291,1293,1295,1297,1299],{"class":475,"line":564},[473,1292,718],{"class":550},[473,1294,554],{"class":483},[473,1296,514],{"class":538},[473,1298,725],{"class":487},[473,1300,561],{"class":483},[473,1302,1303,1305],{"class":475,"line":605},[473,1304,733],{"class":483},[473,1306,736],{"class":487},[1308,1309,1312,1313,1315],"callout",{"color":1310,"icon":1311},"warning","i-lucide-alert-triangle","If ",[451,1314,833],{}," is enabled without a drain, events are built and sampled but never output anywhere. evlog will warn you about this at startup.",[446,1317,1319],{"id":1318},"middleware-options","Middleware Options",[433,1321,1322],{},"These options are passed to the framework middleware\u002Fplugin. They control per-request behavior: which routes to log, how to drain and enrich events, and custom tail sampling logic.",[1324,1325,1326,1626,1820,1917],"code-group",{},[463,1327,1329],{"className":465,"code":1328,"filename":216,"language":468,"meta":469,"style":469},"\u002F\u002F lib\u002Fevlog.ts\nimport { createEvlog } from 'evlog\u002Fnext'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\nexport const { withEvlog, useLogger, log, createError } = createEvlog({\n  service: 'my-app',\n  include: ['\u002Fapi\u002F**'],\n  exclude: ['\u002Fapi\u002Fhealth'],\n  routes: { '\u002Fapi\u002Fauth\u002F**': { service: 'auth' } },\n  drain: createAxiomDrain(),\n  enrich: (ctx) => { ctx.event.region = process.env.FLY_REGION },\n  keep: (ctx) => { if (ctx.duration > 2000) ctx.shouldKeep = true },\n})\n",[451,1330,1331,1337,1357,1375,1379,1419,1435,1456,1476,1511,1523,1569,1620],{"__ignoreMap":469},[473,1332,1333],{"class":475,"line":476},[473,1334,1336],{"class":1335},"sHwdD","\u002F\u002F lib\u002Fevlog.ts\n",[473,1338,1339,1341,1343,1346,1348,1350,1352,1355],{"class":475,"line":507},[473,1340,480],{"class":479},[473,1342,484],{"class":483},[473,1344,1345],{"class":487}," createEvlog",[473,1347,491],{"class":483},[473,1349,494],{"class":479},[473,1351,497],{"class":483},[473,1353,1354],{"class":500},"evlog\u002Fnext",[473,1356,504],{"class":483},[473,1358,1359,1361,1363,1365,1367,1369,1371,1373],{"class":475,"line":528},[473,1360,480],{"class":479},[473,1362,484],{"class":483},[473,1364,514],{"class":487},[473,1366,491],{"class":483},[473,1368,494],{"class":479},[473,1370,497],{"class":483},[473,1372,523],{"class":500},[473,1374,504],{"class":483},[473,1376,1377],{"class":475,"line":535},[473,1378,532],{"emptyLinePlaceholder":531},[473,1380,1381,1384,1388,1390,1393,1395,1398,1400,1403,1405,1408,1410,1413,1415,1417],{"class":475,"line":547},[473,1382,1383],{"class":479},"export",[473,1385,1387],{"class":1386},"spNyl"," const",[473,1389,484],{"class":483},[473,1391,1392],{"class":487}," withEvlog",[473,1394,587],{"class":483},[473,1396,1397],{"class":487}," useLogger",[473,1399,587],{"class":483},[473,1401,1402],{"class":487}," log",[473,1404,587],{"class":483},[473,1406,1407],{"class":487}," createError ",[473,1409,733],{"class":483},[473,1411,1412],{"class":483}," =",[473,1414,1345],{"class":538},[473,1416,541],{"class":487},[473,1418,544],{"class":483},[473,1420,1421,1424,1426,1428,1431,1433],{"class":475,"line":564},[473,1422,1423],{"class":550},"  service",[473,1425,554],{"class":483},[473,1427,497],{"class":483},[473,1429,1430],{"class":500},"my-app",[473,1432,584],{"class":483},[473,1434,561],{"class":483},[473,1436,1437,1440,1442,1444,1446,1449,1451,1454],{"class":475,"line":605},[473,1438,1439],{"class":550},"  include",[473,1441,554],{"class":483},[473,1443,693],{"class":487},[473,1445,584],{"class":483},[473,1447,1448],{"class":500},"\u002Fapi\u002F**",[473,1450,584],{"class":483},[473,1452,1453],{"class":487},"]",[473,1455,561],{"class":483},[473,1457,1458,1461,1463,1465,1467,1470,1472,1474],{"class":475,"line":618},[473,1459,1460],{"class":550},"  exclude",[473,1462,554],{"class":483},[473,1464,693],{"class":487},[473,1466,584],{"class":483},[473,1468,1469],{"class":500},"\u002Fapi\u002Fhealth",[473,1471,584],{"class":483},[473,1473,1453],{"class":487},[473,1475,561],{"class":483},[473,1477,1478,1481,1483,1485,1487,1490,1492,1494,1496,1498,1500,1502,1505,1507,1509],{"class":475,"line":630},[473,1479,1480],{"class":550},"  routes",[473,1482,554],{"class":483},[473,1484,484],{"class":483},[473,1486,497],{"class":483},[473,1488,1489],{"class":550},"\u002Fapi\u002Fauth\u002F**",[473,1491,584],{"class":483},[473,1493,554],{"class":483},[473,1495,484],{"class":483},[473,1497,574],{"class":550},[473,1499,554],{"class":483},[473,1501,497],{"class":483},[473,1503,1504],{"class":500},"auth",[473,1506,584],{"class":483},[473,1508,491],{"class":483},[473,1510,602],{"class":483},[473,1512,1513,1515,1517,1519,1521],{"class":475,"line":642},[473,1514,718],{"class":550},[473,1516,554],{"class":483},[473,1518,514],{"class":538},[473,1520,725],{"class":487},[473,1522,561],{"class":483},[473,1524,1525,1528,1530,1532,1536,1538,1541,1543,1546,1548,1551,1553,1555,1557,1559,1561,1563,1565,1567],{"class":475,"line":659},[473,1526,1527],{"class":538},"  enrich",[473,1529,554],{"class":483},[473,1531,1017],{"class":483},[473,1533,1535],{"class":1534},"sHdIc","ctx",[473,1537,454],{"class":483},[473,1539,1540],{"class":1386}," =>",[473,1542,484],{"class":483},[473,1544,1545],{"class":487}," ctx",[473,1547,1057],{"class":483},[473,1549,1550],{"class":487},"event",[473,1552,1057],{"class":483},[473,1554,1177],{"class":487},[473,1556,1412],{"class":483},[473,1558,1268],{"class":487},[473,1560,1057],{"class":483},[473,1562,793],{"class":487},[473,1564,1057],{"class":483},[473,1566,1190],{"class":487},[473,1568,602],{"class":483},[473,1570,1571,1574,1576,1578,1580,1582,1584,1586,1589,1591,1593,1595,1598,1601,1604,1607,1609,1611,1614,1616,1618],{"class":475,"line":715},[473,1572,1573],{"class":538},"  keep",[473,1575,554],{"class":483},[473,1577,1017],{"class":483},[473,1579,1535],{"class":1534},[473,1581,454],{"class":483},[473,1583,1540],{"class":1386},[473,1585,484],{"class":483},[473,1587,1588],{"class":479}," if",[473,1590,1017],{"class":550},[473,1592,1535],{"class":487},[473,1594,1057],{"class":483},[473,1596,1597],{"class":487},"duration",[473,1599,1600],{"class":483}," >",[473,1602,1603],{"class":681}," 2000",[473,1605,1606],{"class":550},") ",[473,1608,1535],{"class":487},[473,1610,1057],{"class":483},[473,1612,1613],{"class":487},"shouldKeep",[473,1615,1412],{"class":483},[473,1617,558],{"class":557},[473,1619,602],{"class":483},[473,1621,1622,1624],{"class":475,"line":730},[473,1623,733],{"class":483},[473,1625,736],{"class":487},[463,1627,1629],{"className":465,"code":1628,"filename":246,"language":468,"meta":469,"style":469},"app.use(evlog({\n  include: ['\u002Fapi\u002F**'],\n  exclude: ['\u002Fapi\u002Fhealth'],\n  routes: { '\u002Fapi\u002Fauth\u002F**': { service: 'auth' } },\n  drain: createAxiomDrain(),\n  enrich: (ctx) => { ctx.event.region = process.env.FLY_REGION },\n  keep: (ctx) => { if (ctx.duration > 2000) ctx.shouldKeep = true },\n}))\n",[451,1630,1631,1649,1667,1685,1717,1729,1769,1813],{"__ignoreMap":469},[473,1632,1633,1636,1638,1641,1643,1645,1647],{"class":475,"line":476},[473,1634,1635],{"class":487},"app",[473,1637,1057],{"class":483},[473,1639,1640],{"class":538},"use",[473,1642,541],{"class":487},[473,1644,501],{"class":538},[473,1646,541],{"class":487},[473,1648,544],{"class":483},[473,1650,1651,1653,1655,1657,1659,1661,1663,1665],{"class":475,"line":507},[473,1652,1439],{"class":550},[473,1654,554],{"class":483},[473,1656,693],{"class":487},[473,1658,584],{"class":483},[473,1660,1448],{"class":500},[473,1662,584],{"class":483},[473,1664,1453],{"class":487},[473,1666,561],{"class":483},[473,1668,1669,1671,1673,1675,1677,1679,1681,1683],{"class":475,"line":528},[473,1670,1460],{"class":550},[473,1672,554],{"class":483},[473,1674,693],{"class":487},[473,1676,584],{"class":483},[473,1678,1469],{"class":500},[473,1680,584],{"class":483},[473,1682,1453],{"class":487},[473,1684,561],{"class":483},[473,1686,1687,1689,1691,1693,1695,1697,1699,1701,1703,1705,1707,1709,1711,1713,1715],{"class":475,"line":535},[473,1688,1480],{"class":550},[473,1690,554],{"class":483},[473,1692,484],{"class":483},[473,1694,497],{"class":483},[473,1696,1489],{"class":550},[473,1698,584],{"class":483},[473,1700,554],{"class":483},[473,1702,484],{"class":483},[473,1704,574],{"class":550},[473,1706,554],{"class":483},[473,1708,497],{"class":483},[473,1710,1504],{"class":500},[473,1712,584],{"class":483},[473,1714,491],{"class":483},[473,1716,602],{"class":483},[473,1718,1719,1721,1723,1725,1727],{"class":475,"line":547},[473,1720,718],{"class":550},[473,1722,554],{"class":483},[473,1724,514],{"class":538},[473,1726,725],{"class":487},[473,1728,561],{"class":483},[473,1730,1731,1733,1735,1737,1739,1741,1743,1745,1747,1749,1751,1753,1755,1757,1759,1761,1763,1765,1767],{"class":475,"line":564},[473,1732,1527],{"class":538},[473,1734,554],{"class":483},[473,1736,1017],{"class":483},[473,1738,1535],{"class":1534},[473,1740,454],{"class":483},[473,1742,1540],{"class":1386},[473,1744,484],{"class":483},[473,1746,1545],{"class":487},[473,1748,1057],{"class":483},[473,1750,1550],{"class":487},[473,1752,1057],{"class":483},[473,1754,1177],{"class":487},[473,1756,1412],{"class":483},[473,1758,1268],{"class":487},[473,1760,1057],{"class":483},[473,1762,793],{"class":487},[473,1764,1057],{"class":483},[473,1766,1190],{"class":487},[473,1768,602],{"class":483},[473,1770,1771,1773,1775,1777,1779,1781,1783,1785,1787,1789,1791,1793,1795,1797,1799,1801,1803,1805,1807,1809,1811],{"class":475,"line":605},[473,1772,1573],{"class":538},[473,1774,554],{"class":483},[473,1776,1017],{"class":483},[473,1778,1535],{"class":1534},[473,1780,454],{"class":483},[473,1782,1540],{"class":1386},[473,1784,484],{"class":483},[473,1786,1588],{"class":479},[473,1788,1017],{"class":550},[473,1790,1535],{"class":487},[473,1792,1057],{"class":483},[473,1794,1597],{"class":487},[473,1796,1600],{"class":483},[473,1798,1603],{"class":681},[473,1800,1606],{"class":550},[473,1802,1535],{"class":487},[473,1804,1057],{"class":483},[473,1806,1613],{"class":487},[473,1808,1412],{"class":483},[473,1810,558],{"class":557},[473,1812,602],{"class":483},[473,1814,1815,1817],{"class":475,"line":618},[473,1816,733],{"class":483},[473,1818,1819],{"class":487},"))\n",[463,1821,1823],{"className":465,"code":1822,"filename":241,"language":468,"meta":469,"style":469},"app.use(evlog({\n  include: ['\u002Fapi\u002F**'],\n  drain: createAxiomDrain(),\n  enrich: (ctx) => { ctx.event.region = process.env.FLY_REGION },\n}))\n",[451,1824,1825,1841,1859,1871,1911],{"__ignoreMap":469},[473,1826,1827,1829,1831,1833,1835,1837,1839],{"class":475,"line":476},[473,1828,1635],{"class":487},[473,1830,1057],{"class":483},[473,1832,1640],{"class":538},[473,1834,541],{"class":487},[473,1836,501],{"class":538},[473,1838,541],{"class":487},[473,1840,544],{"class":483},[473,1842,1843,1845,1847,1849,1851,1853,1855,1857],{"class":475,"line":507},[473,1844,1439],{"class":550},[473,1846,554],{"class":483},[473,1848,693],{"class":487},[473,1850,584],{"class":483},[473,1852,1448],{"class":500},[473,1854,584],{"class":483},[473,1856,1453],{"class":487},[473,1858,561],{"class":483},[473,1860,1861,1863,1865,1867,1869],{"class":475,"line":528},[473,1862,718],{"class":550},[473,1864,554],{"class":483},[473,1866,514],{"class":538},[473,1868,725],{"class":487},[473,1870,561],{"class":483},[473,1872,1873,1875,1877,1879,1881,1883,1885,1887,1889,1891,1893,1895,1897,1899,1901,1903,1905,1907,1909],{"class":475,"line":535},[473,1874,1527],{"class":538},[473,1876,554],{"class":483},[473,1878,1017],{"class":483},[473,1880,1535],{"class":1534},[473,1882,454],{"class":483},[473,1884,1540],{"class":1386},[473,1886,484],{"class":483},[473,1888,1545],{"class":487},[473,1890,1057],{"class":483},[473,1892,1550],{"class":487},[473,1894,1057],{"class":483},[473,1896,1177],{"class":487},[473,1898,1412],{"class":483},[473,1900,1268],{"class":487},[473,1902,1057],{"class":483},[473,1904,793],{"class":487},[473,1906,1057],{"class":483},[473,1908,1190],{"class":487},[473,1910,602],{"class":483},[473,1912,1913,1915],{"class":475,"line":547},[473,1914,733],{"class":483},[473,1916,1819],{"class":487},[463,1918,1920],{"className":465,"code":1919,"filename":251,"language":468,"meta":469,"style":469},"await app.register(evlog, {\n  include: ['\u002Fapi\u002F**'],\n  drain: createAxiomDrain(),\n})\n",[451,1921,1922,1943,1961,1973],{"__ignoreMap":469},[473,1923,1924,1927,1930,1932,1935,1938,1940],{"class":475,"line":476},[473,1925,1926],{"class":479},"await",[473,1928,1929],{"class":487}," app",[473,1931,1057],{"class":483},[473,1933,1934],{"class":538},"register",[473,1936,1937],{"class":487},"(evlog",[473,1939,587],{"class":483},[473,1941,1942],{"class":483}," {\n",[473,1944,1945,1947,1949,1951,1953,1955,1957,1959],{"class":475,"line":507},[473,1946,1439],{"class":550},[473,1948,554],{"class":483},[473,1950,693],{"class":487},[473,1952,584],{"class":483},[473,1954,1448],{"class":500},[473,1956,584],{"class":483},[473,1958,1453],{"class":487},[473,1960,561],{"class":483},[473,1962,1963,1965,1967,1969,1971],{"class":475,"line":528},[473,1964,718],{"class":550},[473,1966,554],{"class":483},[473,1968,514],{"class":538},[473,1970,725],{"class":487},[473,1972,561],{"class":483},[473,1974,1975,1977],{"class":475,"line":535},[473,1976,733],{"class":483},[473,1978,736],{"class":487},[738,1980,1981,1993],{},[741,1982,1983],{},[744,1984,1985,1987,1989,1991],{},[747,1986,749],{},[747,1988,752],{},[747,1990,755],{},[747,1992,758],{},[760,1994,1995,2014,2032,2051,2068,2087],{},[744,1996,1997,2002,2007,2011],{},[765,1998,1999],{},[451,2000,2001],{},"include",[765,2003,2004],{},[451,2005,2006],{},"string[]",[765,2008,2009],{},[451,2010,913],{},[765,2012,2013],{},"Route glob patterns to log. If not set, all routes are logged",[744,2015,2016,2021,2025,2029],{},[765,2017,2018],{},[451,2019,2020],{},"exclude",[765,2022,2023],{},[451,2024,2006],{},[765,2026,2027],{},[451,2028,913],{},[765,2030,2031],{},"Route patterns to exclude. Exclusions take precedence over inclusions",[744,2033,2034,2039,2044,2048],{},[765,2035,2036],{},[451,2037,2038],{},"routes",[765,2040,2041],{},[451,2042,2043],{},"Record\u003Cstring, { service: string }>",[765,2045,2046],{},[451,2047,913],{},[765,2049,2050],{},"Route-specific service name overrides",[744,2052,2053,2057,2061,2065],{},[765,2054,2055],{},[451,2056,951],{},[765,2058,2059],{},[451,2060,956],{},[765,2062,2063],{},[451,2064,913],{},[765,2066,2067],{},"Drain callback called with every emitted event",[744,2069,2070,2075,2080,2084],{},[765,2071,2072],{},[451,2073,2074],{},"enrich",[765,2076,2077],{},[451,2078,2079],{},"(ctx: EnrichContext) => void",[765,2081,2082],{},[451,2083,913],{},[765,2085,2086],{},"Enrich callback called after emit, before drain",[744,2088,2089,2093,2098,2102],{},[765,2090,2091],{},[451,2092,1010],{},[765,2094,2095],{},[451,2096,2097],{},"(ctx: TailSamplingContext) => void",[765,2099,2100],{},[451,2101,913],{},[765,2103,2104],{},"Custom tail sampling callback",[1308,2106,2107,2110,2111,1098,2114,1098,2117,2120,2121,2123,2124,2126],{"color":652,"icon":13},[437,2108,2109],{},"Nuxt and Nitro"," use module config and Nitro hooks (",[451,2112,2113],{},"evlog:drain",[451,2115,2116],{},"evlog:enrich",[451,2118,2119],{},"evlog:emit:keep",") instead of middleware options. See the ",[918,2122,211],{"href":212}," and ",[918,2125,226],{"href":227}," pages.",[965,2128,2130],{"id":2129},"middleware-drain-vs-global-drain","Middleware drain vs global drain",[433,2132,2133,2134,2136,2137,2139],{},"When a middleware ",[451,2135,951],{}," is set, it takes precedence over the global drain from ",[451,2138,460],{},". If no middleware drain is set, the global drain is used as fallback, with the benefit of receiving the full enriched event with request context (method, path, headers).",[463,2141,2143],{"className":465,"code":2142,"filename":467,"language":468,"meta":469,"style":469},"import { initLogger } from 'evlog'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\ninitLogger({\n  env: { service: 'my-api' },\n  drain: createAxiomDrain(), \u002F\u002F fallback: used by singleton log API AND middleware (if no middleware drain)\n})\n\napp.use(evlog({\n  \u002F\u002F no drain here - falls back to globalDrain from initLogger, with full request context\n}))\n",[451,2144,2145,2163,2181,2185,2193,2213,2228,2234,2238,2254,2259],{"__ignoreMap":469},[473,2146,2147,2149,2151,2153,2155,2157,2159,2161],{"class":475,"line":476},[473,2148,480],{"class":479},[473,2150,484],{"class":483},[473,2152,488],{"class":487},[473,2154,491],{"class":483},[473,2156,494],{"class":479},[473,2158,497],{"class":483},[473,2160,501],{"class":500},[473,2162,504],{"class":483},[473,2164,2165,2167,2169,2171,2173,2175,2177,2179],{"class":475,"line":507},[473,2166,480],{"class":479},[473,2168,484],{"class":483},[473,2170,514],{"class":487},[473,2172,491],{"class":483},[473,2174,494],{"class":479},[473,2176,497],{"class":483},[473,2178,523],{"class":500},[473,2180,504],{"class":483},[473,2182,2183],{"class":475,"line":528},[473,2184,532],{"emptyLinePlaceholder":531},[473,2186,2187,2189,2191],{"class":475,"line":535},[473,2188,453],{"class":538},[473,2190,541],{"class":487},[473,2192,544],{"class":483},[473,2194,2195,2197,2199,2201,2203,2205,2207,2209,2211],{"class":475,"line":547},[473,2196,567],{"class":550},[473,2198,554],{"class":483},[473,2200,484],{"class":483},[473,2202,574],{"class":550},[473,2204,554],{"class":483},[473,2206,497],{"class":483},[473,2208,581],{"class":500},[473,2210,584],{"class":483},[473,2212,602],{"class":483},[473,2214,2215,2217,2219,2221,2223,2225],{"class":475,"line":564},[473,2216,718],{"class":550},[473,2218,554],{"class":483},[473,2220,514],{"class":538},[473,2222,725],{"class":487},[473,2224,587],{"class":483},[473,2226,2227],{"class":1335}," \u002F\u002F fallback: used by singleton log API AND middleware (if no middleware drain)\n",[473,2229,2230,2232],{"class":475,"line":605},[473,2231,733],{"class":483},[473,2233,736],{"class":487},[473,2235,2236],{"class":475,"line":618},[473,2237,532],{"emptyLinePlaceholder":531},[473,2239,2240,2242,2244,2246,2248,2250,2252],{"class":475,"line":630},[473,2241,1635],{"class":487},[473,2243,1057],{"class":483},[473,2245,1640],{"class":538},[473,2247,541],{"class":487},[473,2249,501],{"class":538},[473,2251,541],{"class":487},[473,2253,544],{"class":483},[473,2255,2256],{"class":475,"line":642},[473,2257,2258],{"class":1335},"  \u002F\u002F no drain here - falls back to globalDrain from initLogger, with full request context\n",[473,2260,2261,2263],{"class":475,"line":659},[473,2262,733],{"class":483},[473,2264,1819],{"class":487},[446,2266,2268],{"id":2267},"framework-specific-options","Framework-Specific Options",[433,2270,2271],{},"Some frameworks have additional options beyond the shared config:",[965,2273,211],{"id":2274},"nuxt",[433,2276,2277,2278,2281,2282,2284],{},"The Nuxt module accepts all global options and middleware options in ",[451,2279,2280],{},"nuxt.config.ts"," under the ",[451,2283,501],{}," key, plus:",[738,2286,2287,2299],{},[741,2288,2289],{},[744,2290,2291,2293,2295,2297],{},[747,2292,749],{},[747,2294,752],{},[747,2296,755],{},[747,2298,758],{},[760,2300,2301,2319,2337,2356],{},[744,2302,2303,2308,2312,2316],{},[765,2304,2305],{},[451,2306,2307],{},"console",[765,2309,2310],{},[451,2311,774],{},[765,2313,2314],{},[451,2315,779],{},[765,2317,2318],{},"Enable\u002Fdisable browser console output (client-side only)",[744,2320,2321,2326,2330,2334],{},[765,2322,2323],{},[451,2324,2325],{},"transport.enabled",[765,2327,2328],{},[451,2329,774],{},[765,2331,2332],{},[451,2333,785],{},[765,2335,2336],{},"Send client logs to the server via API endpoint",[744,2338,2339,2344,2348,2353],{},[765,2340,2341],{},[451,2342,2343],{},"transport.endpoint",[765,2345,2346],{},[451,2347,1087],{},[765,2349,2350],{},[451,2351,2352],{},"'\u002Fapi\u002F_evlog\u002Fingest'",[765,2354,2355],{},"Custom transport endpoint",[744,2357,2358,2363,2368,2373],{},[765,2359,2360],{},[451,2361,2362],{},"transport.credentials",[765,2364,2365],{},[451,2366,2367],{},"RequestCredentials",[765,2369,2370],{},[451,2371,2372],{},"'same-origin'",[765,2374,2375,2376,2379],{},"Fetch credentials mode (",[451,2377,2378],{},"'include'"," for cross-origin endpoints)",[433,2381,2382,2383,1057],{},"See the full ",[918,2384,2386],{"href":2385},"\u002Fframeworks\u002Fnuxt#configuration","Nuxt configuration",[965,2388,226],{"id":2389},"nitro",[433,2391,2392,2393,1098,2395,1098,2397,1098,2399,1098,2401,1098,2403,1098,2405,2407,2408,2410,2411,2414],{},"The Nitro module accepts ",[451,2394,769],{},[451,2396,793],{},[451,2398,811],{},[451,2400,833],{},[451,2402,903],{},[451,2404,2001],{},[451,2406,2020],{},", and ",[451,2409,2038],{}," in ",[451,2412,2413],{},"nitro.config.ts",". Drain and enrichment are done via Nitro hooks.",[433,2416,2417,2418,1057],{},"See ",[918,2419,2421],{"href":2420},"\u002Fframeworks\u002Fnitro#drain--enrichers","Nitro drain & enrichers",[2423,2424,2425],"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 pre.shiki code .sfNiH, html code.shiki .sfNiH{--shiki-light:#FF5370;--shiki-default:#FF9CAC;--shiki-dark:#FF9CAC}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}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 .sHwdD, html code.shiki .sHwdD{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}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}",{"title":469,"searchDepth":507,"depth":507,"links":2427},[2428,2435,2438],{"id":448,"depth":507,"text":2429,"children":2430},"Global Options (initLogger)",[2431,2433,2434],{"id":967,"depth":528,"text":2432},"minLevel vs sampling",{"id":1046,"depth":528,"text":1047},{"id":1199,"depth":528,"text":1200},{"id":1318,"depth":507,"text":1319,"children":2436},[2437],{"id":2129,"depth":528,"text":2130},{"id":2267,"depth":507,"text":2268,"children":2439},[2440,2441],{"id":2274,"depth":528,"text":211},{"id":2389,"depth":528,"text":226},"Complete reference for all evlog configuration options including global logger settings, middleware options, environment context, and framework-specific overrides.","md",[2445,2448],{"label":175,"icon":178,"to":176,"color":2446,"variant":2447},"neutral","subtle",{"label":2449,"icon":93,"to":330,"color":2446,"variant":2447},"Drain Adapters",{},{"icon":173},{"title":170,"description":2442},"zQJYXD22Tmkw_b4qCh8Ma2ztDhtu7OXPvcD-6PqFTws",[2455,2457],{"title":165,"path":166,"stem":167,"description":2456,"icon":168,"children":-1},"Understand the full lifecycle of an evlog event, from creation to drain. Covers all three modes (simple logging, wide events, request logging), sampling, enrichment, and delivery.",{"title":175,"path":176,"stem":177,"description":2458,"icon":178,"children":-1},"Control log volume with two-tier sampling. Head sampling drops noise by level, tail sampling rescues critical events based on outcome. Never miss errors, slow requests, or critical paths.",1778349277384]