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Install",[600,601,602,630,646,662],"code-group",{},[603,604,610],"pre",{"className":605,"code":606,"filename":607,"language":608,"meta":609,"style":609},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add evlog express\n","pnpm","bash","",[535,611,612],{"__ignoreMap":609},[613,614,617,620,624,627],"span",{"class":615,"line":616},"line",1,[613,618,607],{"class":619},"sBMFI",[613,621,623],{"class":622},"sfazB"," add",[613,625,626],{"class":622}," evlog",[613,628,629],{"class":622}," express\n",[603,631,634],{"className":605,"code":632,"filename":633,"language":608,"meta":609,"style":609},"bun add evlog express\n","bun",[535,635,636],{"__ignoreMap":609},[613,637,638,640,642,644],{"class":615,"line":616},[613,639,633],{"class":619},[613,641,623],{"class":622},[613,643,626],{"class":622},[613,645,629],{"class":622},[603,647,650],{"className":605,"code":648,"filename":649,"language":608,"meta":609,"style":609},"yarn add evlog express\n","yarn",[535,651,652],{"__ignoreMap":609},[613,653,654,656,658,660],{"class":615,"line":616},[613,655,649],{"class":619},[613,657,623],{"class":622},[613,659,626],{"class":622},[613,661,629],{"class":622},[603,663,666],{"className":605,"code":664,"filename":665,"language":608,"meta":609,"style":609},"npm install evlog express\n","npm",[535,667,668],{"__ignoreMap":609},[613,669,670,672,675,677],{"class":615,"line":616},[613,671,665],{"class":619},[613,673,674],{"class":622}," install",[613,676,626],{"class":622},[613,678,629],{"class":622},[595,680,682],{"id":681},"_2-initialize-and-register-the-middleware","2. Initialize and register the middleware",[603,684,689],{"className":685,"code":686,"filename":687,"language":688,"meta":609,"style":609},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import express from 'express'\nimport { initLogger } from 'evlog'\nimport { evlog } from 'evlog\u002Fexpress'\n\ninitLogger({\n  env: { service: 'my-api' },\n})\n\nconst app = express()\n\napp.use(evlog())\n\napp.get('\u002Fhealth', (req, res) => {\n  req.log.set({ route: 'health' })\n  res.json({ ok: true })\n})\n\napp.listen(3000)\n","src\u002Findex.ts","typescript",[535,690,691,714,738,757,764,777,805,814,819,838,843,862,867,910,947,975,982,987],{"__ignoreMap":609},[613,692,693,697,701,704,708,711],{"class":615,"line":616},[613,694,696],{"class":695},"s7zQu","import",[613,698,700],{"class":699},"sTEyZ"," express ",[613,702,703],{"class":695},"from",[613,705,707],{"class":706},"sMK4o"," '",[613,709,710],{"class":622},"express",[613,712,713],{"class":706},"'\n",[613,715,717,719,722,725,728,731,733,736],{"class":615,"line":716},2,[613,718,696],{"class":695},[613,720,721],{"class":706}," {",[613,723,724],{"class":699}," initLogger",[613,726,727],{"class":706}," }",[613,729,730],{"class":695}," from",[613,732,707],{"class":706},[613,734,735],{"class":622},"evlog",[613,737,713],{"class":706},[613,739,741,743,745,747,749,751,753,755],{"class":615,"line":740},3,[613,742,696],{"class":695},[613,744,721],{"class":706},[613,746,626],{"class":699},[613,748,727],{"class":706},[613,750,730],{"class":695},[613,752,707],{"class":706},[613,754,537],{"class":622},[613,756,713],{"class":706},[613,758,760],{"class":615,"line":759},4,[613,761,763],{"emptyLinePlaceholder":762},true,"\n",[613,765,767,771,774],{"class":615,"line":766},5,[613,768,770],{"class":769},"s2Zo4","initLogger",[613,772,773],{"class":699},"(",[613,775,776],{"class":706},"{\n",[613,778,780,784,787,789,792,794,796,799,802],{"class":615,"line":779},6,[613,781,783],{"class":782},"swJcz","  env",[613,785,786],{"class":706},":",[613,788,721],{"class":706},[613,790,791],{"class":782}," service",[613,793,786],{"class":706},[613,795,707],{"class":706},[613,797,798],{"class":622},"my-api",[613,800,801],{"class":706},"'",[613,803,804],{"class":706}," },\n",[613,806,808,811],{"class":615,"line":807},7,[613,809,810],{"class":706},"}",[613,812,813],{"class":699},")\n",[613,815,817],{"class":615,"line":816},8,[613,818,763],{"emptyLinePlaceholder":762},[613,820,822,826,829,832,835],{"class":615,"line":821},9,[613,823,825],{"class":824},"spNyl","const",[613,827,828],{"class":699}," app ",[613,830,831],{"class":706},"=",[613,833,834],{"class":769}," 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res",[613,902,903],{"class":706},")",[613,905,906],{"class":824}," =>",[613,908,909],{"class":706}," {\n",[613,911,913,916,918,921,923,926,928,931,934,936,938,941,943,945],{"class":615,"line":912},14,[613,914,915],{"class":699},"  req",[613,917,851],{"class":706},[613,919,920],{"class":699},"log",[613,922,851],{"class":706},[613,924,925],{"class":769},"set",[613,927,773],{"class":782},[613,929,930],{"class":706},"{",[613,932,933],{"class":782}," route",[613,935,786],{"class":706},[613,937,707],{"class":706},[613,939,940],{"class":622},"health",[613,942,801],{"class":706},[613,944,727],{"class":706},[613,946,813],{"class":782},[613,948,950,953,955,958,960,962,965,967,971,973],{"class":615,"line":949},15,[613,951,952],{"class":699},"  res",[613,954,851],{"class":706},[613,956,957],{"class":769},"json",[613,959,773],{"class":782},[613,961,930],{"class":706},[613,963,964],{"class":782}," ok",[613,966,786],{"class":706},[613,968,970],{"class":969},"sfNiH"," true",[613,972,727],{"class":706},[613,974,813],{"class":782},[613,976,978,980],{"class":615,"line":977},16,[613,979,810],{"class":706},[613,981,813],{"class":699},[613,983,985],{"class":615,"line":984},17,[613,986,763],{"emptyLinePlaceholder":762},[613,988,990,992,994,997,999,1003],{"class":615,"line":989},18,[613,991,848],{"class":699},[613,993,851],{"class":706},[613,995,996],{"class":769},"listen",[613,998,773],{"class":699},[613,1000,1002],{"class":1001},"sbssI","3000",[613,1004,813],{"class":699},[1006,1007,1009,1013,1014,1020,1021,1024,1025,1028],"callout",{"color":1008,"icon":511},"info",[1010,1011,1012],"strong",{},"Using Vite?"," The ",[580,1015,1016,1019],{"href":509},[535,1017,1018],{},"evlog\u002Fvite"," plugin"," replaces the ",[535,1022,1023],{},"initLogger()"," call with compile-time auto-initialization, strips ",[535,1026,1027],{},"log.debug()"," from production builds, and injects source locations.",[531,1030,1031,1032,1034],{},"The logger is available on ",[535,1033,541],{}," with full TypeScript support via module augmentation, so no extra type annotations are needed.",[591,1036,46],{"id":1037},"wide-events",[531,1039,1040],{},"Build up context progressively through your handler. One request = one wide event:",[603,1042,1044],{"className":685,"code":1043,"filename":687,"language":688,"meta":609,"style":609},"app.get('\u002Fusers\u002F:id', async (req, res) => {\n  const userId = req.params.id\n\n  req.log.set({ user: { id: userId } })\n\n  const user = await db.findUser(userId)\n  req.log.set({ user: { name: user.name, plan: user.plan } })\n\n  const orders = await db.findOrders(userId)\n  req.log.set({ orders: { count: orders.length, totalRevenue: sum(orders) } })\n\n  res.json({ user, orders })\n})\n",[535,1045,1046,1082,1106,1110,1146,1150,1176,1230,1234,1258,1316,1320,1342],{"__ignoreMap":609},[613,1047,1048,1050,1052,1054,1056,1058,1061,1063,1065,1068,1070,1072,1074,1076,1078,1080],{"class":615,"line":616},[613,1049,848],{"class":699},[613,1051,851],{"class":706},[613,1053,876],{"class":769},[613,1055,773],{"class":699},[613,1057,801],{"class":706},[613,1059,1060],{"class":622},"\u002Fusers\u002F:id",[613,1062,801],{"class":706},[613,1064,888],{"class":706},[613,1066,1067],{"class":824}," async",[613,1069,891],{"class":706},[613,1071,895],{"class":894},[613,1073,888],{"class":706},[613,1075,900],{"class":894},[613,1077,903],{"class":706},[613,1079,906],{"class":824},[613,1081,909],{"class":706},[613,1083,1084,1087,1090,1093,1096,1098,1101,1103],{"class":615,"line":716},[613,1085,1086],{"class":824},"  const",[613,1088,1089],{"class":699}," userId",[613,1091,1092],{"class":706}," =",[613,1094,1095],{"class":699}," 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orders",[613,1242,1092],{"class":706},[613,1244,1160],{"class":695},[613,1246,1163],{"class":699},[613,1248,851],{"class":706},[613,1250,1251],{"class":769},"findOrders",[613,1253,773],{"class":782},[613,1255,1173],{"class":699},[613,1257,813],{"class":782},[613,1259,1260,1262,1264,1266,1268,1270,1272,1274,1276,1278,1280,1283,1285,1287,1289,1292,1294,1297,1299,1302,1304,1307,1310,1312,1314],{"class":615,"line":840},[613,1261,915],{"class":699},[613,1263,851],{"class":706},[613,1265,920],{"class":699},[613,1267,851],{"class":706},[613,1269,925],{"class":769},[613,1271,773],{"class":782},[613,1273,930],{"class":706},[613,1275,1240],{"class":782},[613,1277,786],{"class":706},[613,1279,721],{"class":706},[613,1281,1282],{"class":782}," count",[613,1284,786],{"class":706},[613,1286,1240],{"class":699},[613,1288,851],{"class":706},[613,1290,1291],{"class":699},"length",[613,1293,888],{"class":706},[613,1295,1296],{"class":782}," totalRevenue",[613,1298,786],{"class":706},[613,1300,1301],{"class":769}," sum",[613,1303,773],{"class":782},[613,1305,1306],{"class":699},"orders",[613,1308,1309],{"class":782},") ",[613,1311,810],{"class":706},[613,1313,727],{"class":706},[613,1315,813],{"class":782},[613,1317,1318],{"class":615,"line":845},[613,1319,763],{"emptyLinePlaceholder":762},[613,1321,1322,1324,1326,1328,1330,1332,1334,1336,1338,1340],{"class":615,"line":864},[613,1323,952],{"class":699},[613,1325,851],{"class":706},[613,1327,957],{"class":769},[613,1329,773],{"class":782},[613,1331,930],{"class":706},[613,1333,1128],{"class":699},[613,1335,888],{"class":706},[613,1337,1240],{"class":699},[613,1339,727],{"class":706},[613,1341,813],{"class":782},[613,1343,1344,1346],{"class":615,"line":869},[613,1345,810],{"class":706},[613,1347,813],{"class":699},[531,1349,1350],{},"All fields are merged into a single wide event emitted when the response finishes:",[603,1352,1355],{"className":605,"code":1353,"filename":1354,"language":608,"meta":609,"style":609},"14:58:15 INFO [my-api] GET \u002Fusers\u002Fusr_123 200 in 12ms\n  ├─ orders: count=2 totalRevenue=6298\n  ├─ user: id=usr_123 name=Alice plan=pro\n  └─ requestId: 4a8ff3a8-...\n","Terminal output",[535,1356,1357,1368,1388,1404],{"__ignoreMap":609},[613,1358,1359,1362,1365],{"class":615,"line":616},[613,1360,1361],{"class":619},"14:58:15",[613,1363,1364],{"class":622}," INFO",[613,1366,1367],{"class":699}," [my-api] GET \u002Fusers\u002Fusr_123 200 in 12ms\n",[613,1369,1370,1373,1376,1379,1382,1385],{"class":615,"line":716},[613,1371,1372],{"class":619},"  ├─",[613,1374,1375],{"class":622}," orders:",[613,1377,1378],{"class":622}," count=",[613,1380,1381],{"class":1001},"2",[613,1383,1384],{"class":622}," totalRevenue=",[613,1386,1387],{"class":1001},"6298\n",[613,1389,1390,1392,1395,1398,1401],{"class":615,"line":740},[613,1391,1372],{"class":619},[613,1393,1394],{"class":622}," user:",[613,1396,1397],{"class":622}," id=usr_123",[613,1399,1400],{"class":622}," name=Alice",[613,1402,1403],{"class":622}," plan=pro\n",[613,1405,1406,1409,1412],{"class":615,"line":759},[613,1407,1408],{"class":619},"  └─",[613,1410,1411],{"class":622}," requestId:",[613,1413,1414],{"class":622}," 4a8ff3a8-...\n",[591,1416,1418],{"id":1417},"uselogger","useLogger()",[531,1420,1421,1422,1424,1425,1427],{},"Use ",[535,1423,1418],{}," to access the request-scoped logger from anywhere in the call stack without passing ",[535,1426,895],{}," through your service layer:",[603,1429,1432],{"className":685,"code":1430,"filename":1431,"language":688,"meta":609,"style":609},"import { useLogger } from 'evlog\u002Fexpress'\n\nexport async function findUser(id: string) {\n  const log = useLogger()\n  log.set({ user: { id } })\n\n  const user = await db.findUser(id)\n  log.set({ user: { name: user.name, plan: user.plan } })\n\n  return user\n}\n","src\u002Fservices\u002Fuser.ts",[535,1433,1434,1453,1457,1484,1497,1524,1528,1550,1596,1600,1608],{"__ignoreMap":609},[613,1435,1436,1438,1440,1443,1445,1447,1449,1451],{"class":615,"line":616},[613,1437,696],{"class":695},[613,1439,721],{"class":706},[613,1441,1442],{"class":699}," useLogger",[613,1444,727],{"class":706},[613,1446,730],{"class":695},[613,1448,707],{"class":706},[613,1450,537],{"class":622},[613,1452,713],{"class":706},[613,1454,1455],{"class":615,"line":716},[613,1456,763],{"emptyLinePlaceholder":762},[613,1458,1459,1462,1464,1467,1470,1472,1475,1477,1480,1482],{"class":615,"line":740},[613,1460,1461],{"class":695},"export",[613,1463,1067],{"class":824},[613,1465,1466],{"class":824}," function",[613,1468,1469],{"class":769}," findUser",[613,1471,773],{"class":706},[613,1473,1474],{"class":894},"id",[613,1476,786],{"class":706},[613,1478,1479],{"class":619}," string",[613,1481,903],{"class":706},[613,1483,909],{"class":706},[613,1485,1486,1488,1491,1493,1495],{"class":615,"line":759},[613,1487,1086],{"class":824},[613,1489,1490],{"class":699}," log",[613,1492,1092],{"class":706},[613,1494,1442],{"class":769},[613,1496,837],{"class":782},[613,1498,1499,1502,1504,1506,1508,1510,1512,1514,1516,1518,1520,1522],{"class":615,"line":766},[613,1500,1501],{"class":699},"  log",[613,1503,851],{"class":706},[613,1505,925],{"class":769},[613,1507,773],{"class":782},[613,1509,930],{"class":706},[613,1511,1128],{"class":782},[613,1513,786],{"class":706},[613,1515,721],{"class":706},[613,1517,1135],{"class":699},[613,1519,727],{"class":706},[613,1521,727],{"class":706},[613,1523,813],{"class":782},[613,1525,1526],{"class":615,"line":779},[613,1527,763],{"emptyLinePlaceholder":762},[613,1529,1530,1532,1534,1536,1538,1540,1542,1544,1546,1548],{"class":615,"line":807},[613,1531,1086],{"class":824},[613,1533,1128],{"class":699},[613,1535,1092],{"class":706},[613,1537,1160],{"class":695},[613,1539,1163],{"class":699},[613,1541,851],{"class":706},[613,1543,1168],{"class":769},[613,1545,773],{"class":782},[613,1547,1474],{"class":699},[613,1549,813],{"class":782},[613,1551,1552,1554,1556,1558,1560,1562,1564,1566,1568,1570,1572,1574,1576,1578,1580,1582,1584,1586,1588,1590,1592,1594],{"class":615,"line":816},[613,1553,1501],{"class":699},[613,1555,851],{"class":706},[613,1557,925],{"class":769},[613,1559,773],{"class":782},[613,1561,930],{"class":706},[613,1563,1128],{"class":782},[613,1565,786],{"class":706},[613,1567,721],{"class":706},[613,1569,1200],{"class":782},[613,1571,786],{"class":706},[613,1573,1128],{"class":699},[613,1575,851],{"class":706},[613,1577,1209],{"class":699},[613,1579,888],{"class":706},[613,1581,1214],{"class":782},[613,1583,786],{"class":706},[613,1585,1128],{"class":699},[613,1587,851],{"class":706},[613,1589,1223],{"class":699},[613,1591,727],{"class":706},[613,1593,727],{"class":706},[613,1595,813],{"class":782},[613,1597,1598],{"class":615,"line":821},[613,1599,763],{"emptyLinePlaceholder":762},[613,1601,1602,1605],{"class":615,"line":840},[613,1603,1604],{"class":695},"  return",[613,1606,1607],{"class":699}," user\n",[613,1609,1610],{"class":615,"line":845},[613,1611,1612],{"class":706},"}\n",[603,1614,1616],{"className":685,"code":1615,"filename":687,"language":688,"meta":609,"style":609},"import { findUser } from '.\u002Fservices\u002Fuser'\n\napp.get('\u002Fusers\u002F:id', async (req, res) => {\n  const user = await findUser(req.params.id)\n  res.json(user)\n})\n",[535,1617,1618,1637,1641,1675,1701,1716],{"__ignoreMap":609},[613,1619,1620,1622,1624,1626,1628,1630,1632,1635],{"class":615,"line":616},[613,1621,696],{"class":695},[613,1623,721],{"class":706},[613,1625,1469],{"class":699},[613,1627,727],{"class":706},[613,1629,730],{"class":695},[613,1631,707],{"class":706},[613,1633,1634],{"class":622},".\u002Fservices\u002Fuser",[613,1636,713],{"class":706},[613,1638,1639],{"class":615,"line":716},[613,1640,763],{"emptyLinePlaceholder":762},[613,1642,1643,1645,1647,1649,1651,1653,1655,1657,1659,1661,1663,1665,1667,1669,1671,1673],{"class":615,"line":740},[613,1644,848],{"class":699},[613,1646,851],{"class":706},[613,1648,876],{"class":769},[613,1650,773],{"class":699},[613,1652,801],{"class":706},[613,1654,1060],{"class":622},[613,1656,801],{"class":706},[613,1658,888],{"class":706},[613,1660,1067],{"class":824},[613,1662,891],{"class":706},[613,1664,895],{"class":894},[613,1666,888],{"class":706},[613,1668,900],{"class":894},[613,1670,903],{"class":706},[613,1672,906],{"class":824},[613,1674,909],{"class":706},[613,1676,1677,1679,1681,1683,1685,1687,1689,1691,1693,1695,1697,1699],{"class":615,"line":759},[613,1678,1086],{"class":824},[613,1680,1128],{"class":699},[613,1682,1092],{"class":706},[613,1684,1160],{"class":695},[613,1686,1469],{"class":769},[613,1688,773],{"class":782},[613,1690,895],{"class":699},[613,1692,851],{"class":706},[613,1694,1100],{"class":699},[613,1696,851],{"class":706},[613,1698,1474],{"class":699},[613,1700,813],{"class":782},[613,1702,1703,1705,1707,1709,1711,1714],{"class":615,"line":766},[613,1704,952],{"class":699},[613,1706,851],{"class":706},[613,1708,957],{"class":769},[613,1710,773],{"class":782},[613,1712,1713],{"class":699},"user",[613,1715,813],{"class":782},[613,1717,1718,1720],{"class":615,"line":779},[613,1719,810],{"class":706},[613,1721,813],{"class":699},[531,1723,1724,1725,1727,1728,1730,1731,1733,1734,1737],{},"Both ",[535,1726,541],{}," and ",[535,1729,1418],{}," return the same logger instance. ",[535,1732,1418],{}," uses ",[535,1735,1736],{},"AsyncLocalStorage"," to propagate the logger across async boundaries.",[591,1739,1741,1742,903],{"id":1740},"background-work-logfork","Background work (",[535,1743,1744],{},"log.fork",[531,1746,1747,1748,1751,1752,1757,1758,1760,1761,1764,1765,1768,1769,1727,1772,1775,1776,851],{},"Fire-and-forget async work that finishes ",[1010,1749,1750],{},"after"," the response can no longer update the request wide event (the logger is sealed after emit). Use ",[1010,1753,1754],{},[535,1755,1756],{},"req.log.fork(label, fn)"," so ",[535,1759,1418],{}," inside ",[535,1762,1763],{},"fn"," targets a ",[1010,1766,1767],{},"child"," logger that emits its own event with ",[535,1770,1771],{},"operation",[535,1773,1774],{},"_parentRequestId",". See ",[580,1777,1779],{"href":1778},"\u002Flearn\u002Fwide-events#after-emit-sealing-and-background-work","Wide events — After emit",[603,1781,1783],{"className":685,"code":1782,"filename":687,"language":688,"meta":609,"style":609},"import { evlog, useLogger } from 'evlog\u002Fexpress'\n\napp.use(evlog())\n\napp.post('\u002Forders', (req, res) => {\n  req.log.set({ orderId: 'ord_1' })\n  req.log.fork!('fulfill_order', async () => {\n    const log = useLogger()\n    log.set({ step: 'inventory_ok' })\n  })\n  res.json({ ok: true })\n})\n",[535,1784,1785,1807,1811,1825,1829,1863,1895,1931,1944,1973,1980,2002],{"__ignoreMap":609},[613,1786,1787,1789,1791,1793,1795,1797,1799,1801,1803,1805],{"class":615,"line":616},[613,1788,696],{"class":695},[613,1790,721],{"class":706},[613,1792,626],{"class":699},[613,1794,888],{"class":706},[613,1796,1442],{"class":699},[613,1798,727],{"class":706},[613,1800,730],{"class":695},[613,1802,707],{"class":706},[613,1804,537],{"class":622},[613,1806,713],{"class":706},[613,1808,1809],{"class":615,"line":716},[613,1810,763],{"emptyLinePlaceholder":762},[613,1812,1813,1815,1817,1819,1821,1823],{"class":615,"line":740},[613,1814,848],{"class":699},[613,1816,851],{"class":706},[613,1818,854],{"class":769},[613,1820,773],{"class":699},[613,1822,735],{"class":769},[613,1824,861],{"class":699},[613,1826,1827],{"class":615,"line":759},[613,1828,763],{"emptyLinePlaceholder":762},[613,1830,1831,1833,1835,1838,1840,1842,1845,1847,1849,1851,1853,1855,1857,1859,1861],{"class":615,"line":766},[613,1832,848],{"class":699},[613,1834,851],{"class":706},[613,1836,1837],{"class":769},"post",[613,1839,773],{"class":699},[613,1841,801],{"class":706},[613,1843,1844],{"class":622},"\u002Forders",[613,1846,801],{"class":706},[613,1848,888],{"class":706},[613,1850,891],{"class":706},[613,1852,895],{"class":894},[613,1854,888],{"class":706},[613,1856,900],{"class":894},[613,1858,903],{"class":706},[613,1860,906],{"class":824},[613,1862,909],{"class":706},[613,1864,1865,1867,1869,1871,1873,1875,1877,1879,1882,1884,1886,1889,1891,1893],{"class":615,"line":779},[613,1866,915],{"class":699},[613,1868,851],{"class":706},[613,1870,920],{"class":699},[613,1872,851],{"class":706},[613,1874,925],{"class":769},[613,1876,773],{"class":782},[613,1878,930],{"class":706},[613,1880,1881],{"class":782}," orderId",[613,1883,786],{"class":706},[613,1885,707],{"class":706},[613,1887,1888],{"class":622},"ord_1",[613,1890,801],{"class":706},[613,1892,727],{"class":706},[613,1894,813],{"class":782},[613,1896,1897,1899,1901,1903,1905,1908,1911,1913,1915,1918,1920,1922,1924,1927,1929],{"class":615,"line":807},[613,1898,915],{"class":699},[613,1900,851],{"class":706},[613,1902,920],{"class":699},[613,1904,851],{"class":706},[613,1906,1907],{"class":769},"fork",[613,1909,1910],{"class":706},"!",[613,1912,773],{"class":782},[613,1914,801],{"class":706},[613,1916,1917],{"class":622},"fulfill_order",[613,1919,801],{"class":706},[613,1921,888],{"class":706},[613,1923,1067],{"class":824},[613,1925,1926],{"class":706}," ()",[613,1928,906],{"class":824},[613,1930,909],{"class":706},[613,1932,1933,1936,1938,1940,1942],{"class":615,"line":816},[613,1934,1935],{"class":824},"    const",[613,1937,1490],{"class":699},[613,1939,1092],{"class":706},[613,1941,1442],{"class":769},[613,1943,837],{"class":782},[613,1945,1946,1949,1951,1953,1955,1957,1960,1962,1964,1967,1969,1971],{"class":615,"line":821},[613,1947,1948],{"class":699},"    log",[613,1950,851],{"class":706},[613,1952,925],{"class":769},[613,1954,773],{"class":782},[613,1956,930],{"class":706},[613,1958,1959],{"class":782}," step",[613,1961,786],{"class":706},[613,1963,707],{"class":706},[613,1965,1966],{"class":622},"inventory_ok",[613,1968,801],{"class":706},[613,1970,727],{"class":706},[613,1972,813],{"class":782},[613,1974,1975,1978],{"class":615,"line":840},[613,1976,1977],{"class":706},"  }",[613,1979,813],{"class":782},[613,1981,1982,1984,1986,1988,1990,1992,1994,1996,1998,2000],{"class":615,"line":845},[613,1983,952],{"class":699},[613,1985,851],{"class":706},[613,1987,957],{"class":769},[613,1989,773],{"class":782},[613,1991,930],{"class":706},[613,1993,964],{"class":782},[613,1995,786],{"class":706},[613,1997,970],{"class":969},[613,1999,727],{"class":706},[613,2001,813],{"class":782},[613,2003,2004,2006],{"class":615,"line":864},[613,2005,810],{"class":706},[613,2007,813],{"class":699},[591,2009,2011],{"id":2010},"error-handling","Error Handling",[531,2013,1421,2014,2017,2018,2021,2022,2025,2026,2029],{},[535,2015,2016],{},"createError"," for structured errors with ",[535,2019,2020],{},"why",", ",[535,2023,2024],{},"fix",", and ",[535,2027,2028],{},"link"," fields. Express uses a 4-argument error handler middleware:",[603,2031,2033],{"className":685,"code":2032,"filename":687,"language":688,"meta":609,"style":609},"import { createError, parseError } from 'evlog'\n\napp.get('\u002Fcheckout', () => {\n  throw 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})\n\napp.use((err, req, res, next) => {\n  req.log.error(err)\n  const parsed = parseError(err)\n\n  res.status(parsed.status).json({\n    message: parsed.message,\n    why: parsed.why,\n    fix: parsed.fix,\n    link: parsed.link,\n  })\n})\n",[535,2034,2035,2059,2063,2088,2099,2116,2128,2144,2160,2176,2182,2188,2192,2226,2245,2262,2266,2294,2309,2324,2339,2354,2361],{"__ignoreMap":609},[613,2036,2037,2039,2041,2044,2046,2049,2051,2053,2055,2057],{"class":615,"line":616},[613,2038,696],{"class":695},[613,2040,721],{"class":706},[613,2042,2043],{"class":699}," createError",[613,2045,888],{"class":706},[613,2047,2048],{"class":699}," parseError",[613,2050,727],{"class":706},[613,2052,730],{"class":695},[613,2054,707],{"class":706},[613,2056,735],{"class":622},[613,2058,713],{"class":706},[613,2060,2061],{"class":615,"line":716},[613,2062,763],{"emptyLinePlaceholder":762},[613,2064,2065,2067,2069,2071,2073,2075,2078,2080,2082,2084,2086],{"class":615,"line":740},[613,2066,848],{"class":699},[613,2068,851],{"class":706},[613,2070,876],{"class":769},[613,2072,773],{"class":699},[613,2074,801],{"class":706},[613,2076,2077],{"class":622},"\u002Fcheckout",[613,2079,801],{"class":706},[613,2081,888],{"class":706},[613,2083,1926],{"class":706},[613,2085,906],{"class":824},[613,2087,909],{"class":706},[613,2089,2090,2093,2095,2097],{"class":615,"line":759},[613,2091,2092],{"class":695},"  throw",[613,2094,2043],{"class":769},[613,2096,773],{"class":782},[613,2098,776],{"class":706},[613,2100,2101,2104,2106,2108,2111,2113],{"class":615,"line":766},[613,2102,2103],{"class":782},"    message",[613,2105,786],{"class":706},[613,2107,707],{"class":706},[613,2109,2110],{"class":622},"Payment failed",[613,2112,801],{"class":706},[613,2114,2115],{"class":706},",\n",[613,2117,2118,2121,2123,2126],{"class":615,"line":779},[613,2119,2120],{"class":782},"    status",[613,2122,786],{"class":706},[613,2124,2125],{"class":1001}," 402",[613,2127,2115],{"class":706},[613,2129,2130,2133,2135,2137,2140,2142],{"class":615,"line":807},[613,2131,2132],{"class":782},"    why",[613,2134,786],{"class":706},[613,2136,707],{"class":706},[613,2138,2139],{"class":622},"Card declined by issuer",[613,2141,801],{"class":706},[613,2143,2115],{"class":706},[613,2145,2146,2149,2151,2153,2156,2158],{"class":615,"line":816},[613,2147,2148],{"class":782},"    fix",[613,2150,786],{"class":706},[613,2152,707],{"class":706},[613,2154,2155],{"class":622},"Try a different payment method",[613,2157,801],{"class":706},[613,2159,2115],{"class":706},[613,2161,2162,2165,2167,2169,2172,2174],{"class":615,"line":821},[613,2163,2164],{"class":782},"    link",[613,2166,786],{"class":706},[613,2168,707],{"class":706},[613,2170,2171],{"class":622},"https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined",[613,2173,801],{"class":706},[613,2175,2115],{"class":706},[613,2177,2178,2180],{"class":615,"line":840},[613,2179,1977],{"class":706},[613,2181,813],{"class":782},[613,2183,2184,2186],{"class":615,"line":845},[613,2185,810],{"class":706},[613,2187,813],{"class":699},[613,2189,2190],{"class":615,"line":864},[613,2191,763],{"emptyLinePlaceholder":762},[613,2193,2194,2196,2198,2200,2202,2204,2207,2209,2211,2213,2215,2217,2220,2222,2224],{"class":615,"line":869},[613,2195,848],{"class":699},[613,2197,851],{"class":706},[613,2199,854],{"class":769},[613,2201,773],{"class":699},[613,2203,773],{"class":706},[613,2205,2206],{"class":894},"err",[613,2208,888],{"class":706},[613,2210,1095],{"class":894},[613,2212,888],{"class":706},[613,2214,900],{"class":894},[613,2216,888],{"class":706},[613,2218,2219],{"class":894}," next",[613,2221,903],{"class":706},[613,2223,906],{"class":824},[613,2225,909],{"class":706},[613,2227,2228,2230,2232,2234,2236,2239,2241,2243],{"class":615,"line":912},[613,2229,915],{"class":699},[613,2231,851],{"class":706},[613,2233,920],{"class":699},[613,2235,851],{"class":706},[613,2237,2238],{"class":769},"error",[613,2240,773],{"class":782},[613,2242,2206],{"class":699},[613,2244,813],{"class":782},[613,2246,2247,2249,2252,2254,2256,2258,2260],{"class":615,"line":949},[613,2248,1086],{"class":824},[613,2250,2251],{"class":699}," parsed",[613,2253,1092],{"class":706},[613,2255,2048],{"class":769},[613,2257,773],{"class":782},[613,2259,2206],{"class":699},[613,2261,813],{"class":782},[613,2263,2264],{"class":615,"line":977},[613,2265,763],{"emptyLinePlaceholder":762},[613,2267,2268,2270,2272,2275,2277,2280,2282,2284,2286,2288,2290,2292],{"class":615,"line":984},[613,2269,952],{"class":699},[613,2271,851],{"class":706},[613,2273,2274],{"class":769},"status",[613,2276,773],{"class":782},[613,2278,2279],{"class":699},"parsed",[613,2281,851],{"class":706},[613,2283,2274],{"class":699},[613,2285,903],{"class":782},[613,2287,851],{"class":706},[613,2289,957],{"class":769},[613,2291,773],{"class":782},[613,2293,776],{"class":706},[613,2295,2296,2298,2300,2302,2304,2307],{"class":615,"line":989},[613,2297,2103],{"class":782},[613,2299,786],{"class":706},[613,2301,2251],{"class":699},[613,2303,851],{"class":706},[613,2305,2306],{"class":699},"message",[613,2308,2115],{"class":706},[613,2310,2312,2314,2316,2318,2320,2322],{"class":615,"line":2311},19,[613,2313,2132],{"class":782},[613,2315,786],{"class":706},[613,2317,2251],{"class":699},[613,2319,851],{"class":706},[613,2321,2020],{"class":699},[613,2323,2115],{"class":706},[613,2325,2327,2329,2331,2333,2335,2337],{"class":615,"line":2326},20,[613,2328,2148],{"class":782},[613,2330,786],{"class":706},[613,2332,2251],{"class":699},[613,2334,851],{"class":706},[613,2336,2024],{"class":699},[613,2338,2115],{"class":706},[613,2340,2342,2344,2346,2348,2350,2352],{"class":615,"line":2341},21,[613,2343,2164],{"class":782},[613,2345,786],{"class":706},[613,2347,2251],{"class":699},[613,2349,851],{"class":706},[613,2351,2028],{"class":699},[613,2353,2115],{"class":706},[613,2355,2357,2359],{"class":615,"line":2356},22,[613,2358,1977],{"class":706},[613,2360,813],{"class":782},[613,2362,2364,2366],{"class":615,"line":2363},23,[613,2365,810],{"class":706},[613,2367,813],{"class":699},[531,2369,2370],{},"The error is captured and logged with both the custom context and structured error fields:",[603,2372,2374],{"className":605,"code":2373,"filename":1354,"language":608,"meta":609,"style":609},"14:58:20 ERROR [my-api] GET \u002Fcheckout 402 in 3ms\n  ├─ error: name=EvlogError message=Payment failed status=402\n  └─ requestId: 880a50ac-...\n",[535,2375,2376,2387,2409],{"__ignoreMap":609},[613,2377,2378,2381,2384],{"class":615,"line":616},[613,2379,2380],{"class":619},"14:58:20",[613,2382,2383],{"class":622}," ERROR",[613,2385,2386],{"class":699}," [my-api] GET \u002Fcheckout 402 in 3ms\n",[613,2388,2389,2391,2394,2397,2400,2403,2406],{"class":615,"line":716},[613,2390,1372],{"class":619},[613,2392,2393],{"class":622}," error:",[613,2395,2396],{"class":622}," name=EvlogError",[613,2398,2399],{"class":622}," message=Payment",[613,2401,2402],{"class":622}," failed",[613,2404,2405],{"class":622}," status=",[613,2407,2408],{"class":1001},"402\n",[613,2410,2411,2413,2415],{"class":615,"line":740},[613,2412,1408],{"class":619},[613,2414,1411],{"class":622},[613,2416,2417],{"class":622}," 880a50ac-...\n",[591,2419,500],{"id":2420},"configuration",[531,2422,2423,2424,2427,2428,2430],{},"See the ",[580,2425,2426],{"href":501},"Configuration reference"," for all available options (",[535,2429,770],{},", middleware options, sampling, silent mode, etc.).",[591,2432,2434],{"id":2433},"drain-enrichers","Drain & Enrichers",[531,2436,2437],{},"Configure drain adapters and enrichers directly in the middleware options:",[603,2439,2441],{"className":685,"code":2440,"filename":687,"language":688,"meta":609,"style":609},"import { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createUserAgentEnricher } from 'evlog\u002Fenrichers'\n\nconst userAgent = createUserAgentEnricher()\n\napp.use(evlog({\n  drain: createAxiomDrain(),\n  enrich: (ctx) => {\n    userAgent(ctx)\n    ctx.event.region = process.env.FLY_REGION\n  },\n}))\n",[535,2442,2443,2463,2483,2487,2500,2504,2520,2534,2552,2563,2593,2598],{"__ignoreMap":609},[613,2444,2445,2447,2449,2452,2454,2456,2458,2461],{"class":615,"line":616},[613,2446,696],{"class":695},[613,2448,721],{"class":706},[613,2450,2451],{"class":699}," createAxiomDrain",[613,2453,727],{"class":706},[613,2455,730],{"class":695},[613,2457,707],{"class":706},[613,2459,2460],{"class":622},"evlog\u002Faxiom",[613,2462,713],{"class":706},[613,2464,2465,2467,2469,2472,2474,2476,2478,2481],{"class":615,"line":716},[613,2466,696],{"class":695},[613,2468,721],{"class":706},[613,2470,2471],{"class":699}," createUserAgentEnricher",[613,2473,727],{"class":706},[613,2475,730],{"class":695},[613,2477,707],{"class":706},[613,2479,2480],{"class":622},"evlog\u002Fenrichers",[613,2482,713],{"class":706},[613,2484,2485],{"class":615,"line":740},[613,2486,763],{"emptyLinePlaceholder":762},[613,2488,2489,2491,2494,2496,2498],{"class":615,"line":759},[613,2490,825],{"class":824},[613,2492,2493],{"class":699}," userAgent ",[613,2495,831],{"class":706},[613,2497,2471],{"class":769},[613,2499,837],{"class":699},[613,2501,2502],{"class":615,"line":766},[613,2503,763],{"emptyLinePlaceholder":762},[613,2505,2506,2508,2510,2512,2514,2516,2518],{"class":615,"line":779},[613,2507,848],{"class":699},[613,2509,851],{"class":706},[613,2511,854],{"class":769},[613,2513,773],{"class":699},[613,2515,735],{"class":769},[613,2517,773],{"class":699},[613,2519,776],{"class":706},[613,2521,2522,2525,2527,2529,2532],{"class":615,"line":807},[613,2523,2524],{"class":782},"  drain",[613,2526,786],{"class":706},[613,2528,2451],{"class":769},[613,2530,2531],{"class":699},"()",[613,2533,2115],{"class":706},[613,2535,2536,2539,2541,2543,2546,2548,2550],{"class":615,"line":816},[613,2537,2538],{"class":769},"  enrich",[613,2540,786],{"class":706},[613,2542,891],{"class":706},[613,2544,2545],{"class":894},"ctx",[613,2547,903],{"class":706},[613,2549,906],{"class":824},[613,2551,909],{"class":706},[613,2553,2554,2557,2559,2561],{"class":615,"line":821},[613,2555,2556],{"class":769},"    userAgent",[613,2558,773],{"class":782},[613,2560,2545],{"class":699},[613,2562,813],{"class":782},[613,2564,2565,2568,2570,2573,2575,2578,2580,2583,2585,2588,2590],{"class":615,"line":840},[613,2566,2567],{"class":699},"    ctx",[613,2569,851],{"class":706},[613,2571,2572],{"class":699},"event",[613,2574,851],{"class":706},[613,2576,2577],{"class":699},"region",[613,2579,1092],{"class":706},[613,2581,2582],{"class":699}," process",[613,2584,851],{"class":706},[613,2586,2587],{"class":699},"env",[613,2589,851],{"class":706},[613,2591,2592],{"class":699},"FLY_REGION\n",[613,2594,2595],{"class":615,"line":845},[613,2596,2597],{"class":706},"  },\n",[613,2599,2600,2602],{"class":615,"line":864},[613,2601,810],{"class":706},[613,2603,2604],{"class":699},"))\n",[595,2606,2608],{"id":2607},"pipeline-batching-retry","Pipeline (Batching & Retry)",[531,2610,2611,2612,2615],{},"For production, wrap your adapter with ",[535,2613,2614],{},"createDrainPipeline"," to batch events and retry on failure:",[603,2617,2619],{"className":685,"code":2618,"filename":687,"language":688,"meta":609,"style":609},"import type { DrainContext } 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\napp.use(evlog({ drain }))\n",[535,2620,2621,2643,2661,2681,2685,2709,2738,2757,2763,2782,2786],{"__ignoreMap":609},[613,2622,2623,2625,2628,2630,2633,2635,2637,2639,2641],{"class":615,"line":616},[613,2624,696],{"class":695},[613,2626,2627],{"class":695}," type",[613,2629,721],{"class":706},[613,2631,2632],{"class":699}," DrainContext",[613,2634,727],{"class":706},[613,2636,730],{"class":695},[613,2638,707],{"class":706},[613,2640,735],{"class":622},[613,2642,713],{"class":706},[613,2644,2645,2647,2649,2651,2653,2655,2657,2659],{"class":615,"line":716},[613,2646,696],{"class":695},[613,2648,721],{"class":706},[613,2650,2451],{"class":699},[613,2652,727],{"class":706},[613,2654,730],{"class":695},[613,2656,707],{"class":706},[613,2658,2460],{"class":622},[613,2660,713],{"class":706},[613,2662,2663,2665,2667,2670,2672,2674,2676,2679],{"class":615,"line":740},[613,2664,696],{"class":695},[613,2666,721],{"class":706},[613,2668,2669],{"class":699}," createDrainPipeline",[613,2671,727],{"class":706},[613,2673,730],{"class":695},[613,2675,707],{"class":706},[613,2677,2678],{"class":622},"evlog\u002Fpipeline",[613,2680,713],{"class":706},[613,2682,2683],{"class":615,"line":759},[613,2684,763],{"emptyLinePlaceholder":762},[613,2686,2687,2689,2692,2694,2696,2699,2702,2705,2707],{"class":615,"line":766},[613,2688,825],{"class":824},[613,2690,2691],{"class":699}," pipeline ",[613,2693,831],{"class":706},[613,2695,2669],{"class":769},[613,2697,2698],{"class":706},"\u003C",[613,2700,2701],{"class":619},"DrainContext",[613,2703,2704],{"class":706},">",[613,2706,773],{"class":699},[613,2708,776],{"class":706},[613,2710,2711,2714,2716,2718,2721,2723,2726,2728,2731,2733,2736],{"class":615,"line":779},[613,2712,2713],{"class":782},"  batch",[613,2715,786],{"class":706},[613,2717,721],{"class":706},[613,2719,2720],{"class":782}," size",[613,2722,786],{"class":706},[613,2724,2725],{"class":1001}," 50",[613,2727,888],{"class":706},[613,2729,2730],{"class":782}," intervalMs",[613,2732,786],{"class":706},[613,2734,2735],{"class":1001}," 5000",[613,2737,804],{"class":706},[613,2739,2740,2743,2745,2747,2750,2752,2755],{"class":615,"line":807},[613,2741,2742],{"class":782},"  retry",[613,2744,786],{"class":706},[613,2746,721],{"class":706},[613,2748,2749],{"class":782}," maxAttempts",[613,2751,786],{"class":706},[613,2753,2754],{"class":1001}," 3",[613,2756,804],{"class":706},[613,2758,2759,2761],{"class":615,"line":816},[613,2760,810],{"class":706},[613,2762,813],{"class":699},[613,2764,2765,2767,2770,2772,2775,2777,2780],{"class":615,"line":821},[613,2766,825],{"class":824},[613,2768,2769],{"class":699}," drain ",[613,2771,831],{"class":706},[613,2773,2774],{"class":769}," pipeline",[613,2776,773],{"class":699},[613,2778,2779],{"class":769},"createAxiomDrain",[613,2781,861],{"class":699},[613,2783,2784],{"class":615,"line":840},[613,2785,763],{"emptyLinePlaceholder":762},[613,2787,2788,2790,2792,2794,2796,2798,2800,2802,2804,2806],{"class":615,"line":845},[613,2789,848],{"class":699},[613,2791,851],{"class":706},[613,2793,854],{"class":769},[613,2795,773],{"class":699},[613,2797,735],{"class":769},[613,2799,773],{"class":699},[613,2801,930],{"class":706},[613,2803,2769],{"class":699},[613,2805,810],{"class":706},[613,2807,2604],{"class":699},[1006,2809,2810,2811,2814,2815,2818],{"color":1008,"icon":13},"Call ",[535,2812,2813],{},"drain.flush()"," on server shutdown to ensure all buffered events are sent. See the ",[580,2816,2817],{"href":492},"Pipeline docs"," for all options.",[591,2820,2822],{"id":2821},"tail-sampling","Tail Sampling",[531,2824,1421,2825,2828],{},[535,2826,2827],{},"keep"," to force-retain specific events regardless of head sampling:",[603,2830,2832],{"className":685,"code":2831,"filename":687,"language":688,"meta":609,"style":609},"app.use(evlog({\n  drain: createAxiomDrain(),\n  keep: (ctx) => {\n    if (ctx.duration && ctx.duration > 2000) ctx.shouldKeep = true\n  },\n}))\n",[535,2833,2834,2850,2862,2879,2923,2927],{"__ignoreMap":609},[613,2835,2836,2838,2840,2842,2844,2846,2848],{"class":615,"line":616},[613,2837,848],{"class":699},[613,2839,851],{"class":706},[613,2841,854],{"class":769},[613,2843,773],{"class":699},[613,2845,735],{"class":769},[613,2847,773],{"class":699},[613,2849,776],{"class":706},[613,2851,2852,2854,2856,2858,2860],{"class":615,"line":716},[613,2853,2524],{"class":782},[613,2855,786],{"class":706},[613,2857,2451],{"class":769},[613,2859,2531],{"class":699},[613,2861,2115],{"class":706},[613,2863,2864,2867,2869,2871,2873,2875,2877],{"class":615,"line":740},[613,2865,2866],{"class":769},"  keep",[613,2868,786],{"class":706},[613,2870,891],{"class":706},[613,2872,2545],{"class":894},[613,2874,903],{"class":706},[613,2876,906],{"class":824},[613,2878,909],{"class":706},[613,2880,2881,2884,2886,2888,2890,2893,2896,2899,2901,2903,2906,2909,2911,2913,2915,2918,2920],{"class":615,"line":759},[613,2882,2883],{"class":695},"    if",[613,2885,891],{"class":782},[613,2887,2545],{"class":699},[613,2889,851],{"class":706},[613,2891,2892],{"class":699},"duration",[613,2894,2895],{"class":706}," &&",[613,2897,2898],{"class":699}," ctx",[613,2900,851],{"class":706},[613,2902,2892],{"class":699},[613,2904,2905],{"class":706}," >",[613,2907,2908],{"class":1001}," 2000",[613,2910,1309],{"class":782},[613,2912,2545],{"class":699},[613,2914,851],{"class":706},[613,2916,2917],{"class":699},"shouldKeep",[613,2919,1092],{"class":706},[613,2921,2922],{"class":969}," true\n",[613,2924,2925],{"class":615,"line":766},[613,2926,2597],{"class":706},[613,2928,2929,2931],{"class":615,"line":779},[613,2930,810],{"class":706},[613,2932,2604],{"class":699},[591,2934,2936],{"id":2935},"route-filtering","Route Filtering",[531,2938,2939,2940,1727,2943,2946],{},"Control which routes are logged with ",[535,2941,2942],{},"include",[535,2944,2945],{},"exclude"," patterns:",[603,2948,2950],{"className":685,"code":2949,"filename":687,"language":688,"meta":609,"style":609},"app.use(evlog({\n  include: ['\u002Fapi\u002F**'],\n  exclude: ['\u002F_internal\u002F**', '\u002Fhealth'],\n  routes: {\n    '\u002Fapi\u002Fauth\u002F**': { service: 'auth-service' },\n    '\u002Fapi\u002Fpayment\u002F**': { service: 'payment-service' },\n  },\n}))\n",[535,2951,2952,2968,2990,3018,3027,3054,3080,3084],{"__ignoreMap":609},[613,2953,2954,2956,2958,2960,2962,2964,2966],{"class":615,"line":616},[613,2955,848],{"class":699},[613,2957,851],{"class":706},[613,2959,854],{"class":769},[613,2961,773],{"class":699},[613,2963,735],{"class":769},[613,2965,773],{"class":699},[613,2967,776],{"class":706},[613,2969,2970,2973,2975,2978,2980,2983,2985,2988],{"class":615,"line":716},[613,2971,2972],{"class":782},"  include",[613,2974,786],{"class":706},[613,2976,2977],{"class":699}," [",[613,2979,801],{"class":706},[613,2981,2982],{"class":622},"\u002Fapi\u002F**",[613,2984,801],{"class":706},[613,2986,2987],{"class":699},"]",[613,2989,2115],{"class":706},[613,2991,2992,2995,2997,2999,3001,3004,3006,3008,3010,3012,3014,3016],{"class":615,"line":740},[613,2993,2994],{"class":782},"  exclude",[613,2996,786],{"class":706},[613,2998,2977],{"class":699},[613,3000,801],{"class":706},[613,3002,3003],{"class":622},"\u002F_internal\u002F**",[613,3005,801],{"class":706},[613,3007,888],{"class":706},[613,3009,707],{"class":706},[613,3011,883],{"class":622},[613,3013,801],{"class":706},[613,3015,2987],{"class":699},[613,3017,2115],{"class":706},[613,3019,3020,3023,3025],{"class":615,"line":759},[613,3021,3022],{"class":782},"  routes",[613,3024,786],{"class":706},[613,3026,909],{"class":706},[613,3028,3029,3032,3035,3037,3039,3041,3043,3045,3047,3050,3052],{"class":615,"line":766},[613,3030,3031],{"class":706},"    '",[613,3033,3034],{"class":782},"\u002Fapi\u002Fauth\u002F**",[613,3036,801],{"class":706},[613,3038,786],{"class":706},[613,3040,721],{"class":706},[613,3042,791],{"class":782},[613,3044,786],{"class":706},[613,3046,707],{"class":706},[613,3048,3049],{"class":622},"auth-service",[613,3051,801],{"class":706},[613,3053,804],{"class":706},[613,3055,3056,3058,3061,3063,3065,3067,3069,3071,3073,3076,3078],{"class":615,"line":779},[613,3057,3031],{"class":706},[613,3059,3060],{"class":782},"\u002Fapi\u002Fpayment\u002F**",[613,3062,801],{"class":706},[613,3064,786],{"class":706},[613,3066,721],{"class":706},[613,3068,791],{"class":782},[613,3070,786],{"class":706},[613,3072,707],{"class":706},[613,3074,3075],{"class":622},"payment-service",[613,3077,801],{"class":706},[613,3079,804],{"class":706},[613,3081,3082],{"class":615,"line":807},[613,3083,2597],{"class":706},[613,3085,3086,3088],{"class":615,"line":816},[613,3087,810],{"class":706},[613,3089,2604],{"class":699},[591,3091,3093],{"id":3092},"client-side-logging","Client-Side Logging",[531,3095,1421,3096,3099],{},[535,3097,3098],{},"evlog\u002Fhttp"," to send structured logs from any frontend to your Express server. This works with any client framework (React, Vue, Svelte, vanilla JS).",[595,3101,3103],{"id":3102},"browser-setup","Browser setup",[603,3105,3108],{"className":685,"code":3106,"filename":3107,"language":688,"meta":609,"style":609},"import { initLogger, log } from 'evlog'\nimport { createHttpLogDrain } from 'evlog\u002Fhttp'\n\nconst drain = createHttpLogDrain({\n  drain: { endpoint: '\u002Fv1\u002Fingest' },\n})\ninitLogger({ drain })\n\nlog.info({ action: 'page_view', path: location.pathname })\n","client.ts",[535,3109,3110,3132,3151,3155,3169,3191,3197,3211,3215],{"__ignoreMap":609},[613,3111,3112,3114,3116,3118,3120,3122,3124,3126,3128,3130],{"class":615,"line":616},[613,3113,696],{"class":695},[613,3115,721],{"class":706},[613,3117,724],{"class":699},[613,3119,888],{"class":706},[613,3121,1490],{"class":699},[613,3123,727],{"class":706},[613,3125,730],{"class":695},[613,3127,707],{"class":706},[613,3129,735],{"class":622},[613,3131,713],{"class":706},[613,3133,3134,3136,3138,3141,3143,3145,3147,3149],{"class":615,"line":716},[613,3135,696],{"class":695},[613,3137,721],{"class":706},[613,3139,3140],{"class":699}," 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