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Install",[614,615,616,650,670,690],"code-group",{},[617,618,624],"pre",{"className":619,"code":620,"filename":621,"language":622,"meta":623,"style":623},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add evlog @nestjs\u002Fcommon @nestjs\u002Fcore @nestjs\u002Fplatform-express\n","pnpm","bash","",[544,625,626],{"__ignoreMap":623},[627,628,631,634,638,641,644,647],"span",{"class":629,"line":630},"line",1,[627,632,621],{"class":633},"sBMFI",[627,635,637],{"class":636},"sfazB"," add",[627,639,640],{"class":636}," evlog",[627,642,643],{"class":636}," @nestjs\u002Fcommon",[627,645,646],{"class":636}," @nestjs\u002Fcore",[627,648,649],{"class":636}," @nestjs\u002Fplatform-express\n",[617,651,654],{"className":619,"code":652,"filename":653,"language":622,"meta":623,"style":623},"bun add evlog @nestjs\u002Fcommon @nestjs\u002Fcore @nestjs\u002Fplatform-express\n","bun",[544,655,656],{"__ignoreMap":623},[627,657,658,660,662,664,666,668],{"class":629,"line":630},[627,659,653],{"class":633},[627,661,637],{"class":636},[627,663,640],{"class":636},[627,665,643],{"class":636},[627,667,646],{"class":636},[627,669,649],{"class":636},[617,671,674],{"className":619,"code":672,"filename":673,"language":622,"meta":623,"style":623},"yarn add evlog @nestjs\u002Fcommon @nestjs\u002Fcore @nestjs\u002Fplatform-express\n","yarn",[544,675,676],{"__ignoreMap":623},[627,677,678,680,682,684,686,688],{"class":629,"line":630},[627,679,673],{"class":633},[627,681,637],{"class":636},[627,683,640],{"class":636},[627,685,643],{"class":636},[627,687,646],{"class":636},[627,689,649],{"class":636},[617,691,694],{"className":619,"code":692,"filename":693,"language":622,"meta":623,"style":623},"npm install evlog @nestjs\u002Fcommon @nestjs\u002Fcore @nestjs\u002Fplatform-express\n","npm",[544,695,696],{"__ignoreMap":623},[627,697,698,700,703,705,707,709],{"class":629,"line":630},[627,699,693],{"class":633},[627,701,702],{"class":636}," install",[627,704,640],{"class":636},[627,706,643],{"class":636},[627,708,646],{"class":636},[627,710,649],{"class":636},[609,712,714],{"id":713},"_2-register-the-module","2. 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Bootstrap with evlog",[617,864,867],{"className":717,"code":865,"filename":866,"language":720,"meta":623,"style":623},"import 'reflect-metadata'\nimport { NestFactory } from '@nestjs\u002Fcore'\nimport { initLogger } from 'evlog'\nimport { AppModule } from '.\u002Fapp.module'\n\ninitLogger({\n  env: { service: 'my-api' },\n})\n\nconst app = await NestFactory.create(AppModule)\nawait app.listen(3000)\n","src\u002Fmain.ts",[544,868,869,880,900,920,939,943,952,977,983,987,1012],{"__ignoreMap":623},[627,870,871,873,875,878],{"class":629,"line":630},[627,872,728],{"class":727},[627,874,745],{"class":731},[627,876,877],{"class":636},"reflect-metadata",[627,879,751],{"class":731},[627,881,882,884,886,889,891,893,895,898],{"class":629,"line":754},[627,883,728],{"class":727},[627,885,732],{"class":731},[627,887,888],{"class":735}," NestFactory",[627,890,739],{"class":731},[627,892,742],{"class":727},[627,894,745],{"class":731},[627,896,897],{"class":636},"@nestjs\u002Fcore",[627,899,751],{"class":731},[627,901,902,904,906,909,911,913,915,918],{"class":629,"line":774},[627,903,728],{"class":727},[627,905,732],{"class":731},[627,907,908],{"class":735}," initLogger",[627,910,739],{"class":731},[627,912,742],{"class":727},[627,914,745],{"class":731},[627,916,917],{"class":636},"evlog",[627,919,751],{"class":731},[627,921,922,924,926,928,930,932,934,937],{"class":629,"line":781},[627,923,728],{"class":727},[627,925,732],{"class":731},[627,927,855],{"class":735},[627,929,739],{"class":731},[627,931,742],{"class":727},[627,933,745],{"class":731},[627,935,936],{"class":636},".\u002Fapp.module",[627,938,751],{"class":731},[627,940,941],{"class":629,"line":797},[627,942,778],{"emptyLinePlaceholder":777},[627,944,945,948,950],{"class":629,"line":810},[627,946,947],{"class":787},"initLogger",[627,949,791],{"class":735},[627,951,794],{"class":731},[627,953,954,957,959,961,964,966,968,971,974],{"class":629,"line":828},[627,955,956],{"class":800},"  env",[627,958,804],{"class":731},[627,960,732],{"class":731},[627,962,963],{"class":800}," service",[627,965,804],{"class":731},[627,967,745],{"class":731},[627,969,970],{"class":636},"my-api",[627,972,973],{"class":731},"'",[627,975,976],{"class":731}," },\n",[627,978,979,981],{"class":629,"line":836},[627,980,839],{"class":731},[627,982,842],{"class":735},[627,984,985],{"class":629,"line":845},[627,986,778],{"emptyLinePlaceholder":777},[627,988,990,993,996,999,1002,1004,1006,1009],{"class":629,"line":989},10,[627,991,992],{"class":851},"const",[627,994,995],{"class":735}," app ",[627,997,998],{"class":731},"=",[627,1000,1001],{"class":727}," await",[627,1003,888],{"class":735},[627,1005,816],{"class":731},[627,1007,1008],{"class":787},"create",[627,1010,1011],{"class":735},"(AppModule)\n",[627,1013,1015,1018,1021,1023,1026,1028,1032],{"class":629,"line":1014},11,[627,1016,1017],{"class":727},"await",[627,1019,1020],{"class":735}," app",[627,1022,816],{"class":731},[627,1024,1025],{"class":787},"listen",[627,1027,791],{"class":735},[627,1029,1031],{"class":1030},"sbssI","3000",[627,1033,842],{"class":735},[540,1035,1036,1038],{},[544,1037,550],{}," registers as a global module, so the middleware is automatically applied to all routes.",[605,1040,46],{"id":1041},"wide-events",[540,1043,1044],{},"Build up context progressively through your controllers and services. One request = one wide event:",[617,1046,1049],{"className":717,"code":1047,"filename":1048,"language":720,"meta":623,"style":623},"import { Controller, Get, Param } from '@nestjs\u002Fcommon'\nimport { useLogger } from 'evlog\u002Fnestjs'\n\n@Controller('users')\nexport class UsersController {\n  @Get(':id')\n  async findOne(@Param('id') id: string) {\n    const log = useLogger()\n\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    const orders = await db.findOrders(id)\n    log.set({ orders: { count: orders.length, totalRevenue: sum(orders) } })\n\n    return { user, orders }\n  }\n}\n","src\u002Fusers.controller.ts",[544,1050,1051,1081,1100,1104,1122,1134,1153,1192,1208,1212,1243,1247,1272,1323,1328,1353,1407,1412,1429,1435],{"__ignoreMap":623},[627,1052,1053,1055,1057,1060,1063,1066,1068,1071,1073,1075,1077,1079],{"class":629,"line":630},[627,1054,728],{"class":727},[627,1056,732],{"class":731},[627,1058,1059],{"class":735}," Controller",[627,1061,1062],{"class":731},",",[627,1064,1065],{"class":735}," Get",[627,1067,1062],{"class":731},[627,1069,1070],{"class":735}," Param",[627,1072,739],{"class":731},[627,1074,742],{"class":727},[627,1076,745],{"class":731},[627,1078,748],{"class":636},[627,1080,751],{"class":731},[627,1082,1083,1085,1087,1090,1092,1094,1096,1098],{"class":629,"line":754},[627,1084,728],{"class":727},[627,1086,732],{"class":731},[627,1088,1089],{"class":735}," useLogger",[627,1091,739],{"class":731},[627,1093,742],{"class":727},[627,1095,745],{"class":731},[627,1097,546],{"class":636},[627,1099,751],{"class":731},[627,1101,1102],{"class":629,"line":774},[627,1103,778],{"emptyLinePlaceholder":777},[627,1105,1106,1108,1111,1113,1115,1118,1120],{"class":629,"line":781},[627,1107,784],{"class":731},[627,1109,1110],{"class":787},"Controller",[627,1112,791],{"class":735},[627,1114,973],{"class":731},[627,1116,1117],{"class":636},"users",[627,1119,973],{"class":731},[627,1121,842],{"class":735},[627,1123,1124,1126,1128,1131],{"class":629,"line":797},[627,1125,848],{"class":727},[627,1127,852],{"class":851},[627,1129,1130],{"class":633}," UsersController",[627,1132,1133],{"class":731}," {\n",[627,1135,1136,1139,1142,1144,1146,1149,1151],{"class":629,"line":810},[627,1137,1138],{"class":731},"  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sum",[627,1395,791],{"class":800},[627,1397,1398],{"class":735},"orders",[627,1400,1178],{"class":800},[627,1402,839],{"class":731},[627,1404,739],{"class":731},[627,1406,842],{"class":800},[627,1408,1410],{"class":629,"line":1409},17,[627,1411,778],{"emptyLinePlaceholder":777},[627,1413,1415,1418,1420,1422,1424,1426],{"class":629,"line":1414},18,[627,1416,1417],{"class":727},"    return",[627,1419,732],{"class":731},[627,1421,1229],{"class":735},[627,1423,1062],{"class":731},[627,1425,1335],{"class":735},[627,1427,1428],{"class":731}," }\n",[627,1430,1432],{"class":629,"line":1431},19,[627,1433,1434],{"class":731},"  }\n",[627,1436,1438],{"class":629,"line":1437},20,[627,1439,1440],{"class":731},"}\n",[540,1442,1443],{},"All fields are merged into a single wide event emitted when the request completes:",[617,1445,1448],{"className":619,"code":1446,"filename":1447,"language":622,"meta":623,"style":623},"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",[544,1449,1450,1461,1481,1497],{"__ignoreMap":623},[627,1451,1452,1455,1458],{"class":629,"line":630},[627,1453,1454],{"class":633},"14:58:15",[627,1456,1457],{"class":636}," INFO",[627,1459,1460],{"class":735}," [my-api] GET \u002Fusers\u002Fusr_123 200 in 12ms\n",[627,1462,1463,1466,1469,1472,1475,1478],{"class":629,"line":754},[627,1464,1465],{"class":633},"  ├─",[627,1467,1468],{"class":636}," orders:",[627,1470,1471],{"class":636}," count=",[627,1473,1474],{"class":1030},"2",[627,1476,1477],{"class":636}," totalRevenue=",[627,1479,1480],{"class":1030},"6298\n",[627,1482,1483,1485,1488,1491,1494],{"class":629,"line":774},[627,1484,1465],{"class":633},[627,1486,1487],{"class":636}," user:",[627,1489,1490],{"class":636}," id=usr_123",[627,1492,1493],{"class":636}," name=Alice",[627,1495,1496],{"class":636}," plan=pro\n",[627,1498,1499,1502,1505],{"class":629,"line":781},[627,1500,1501],{"class":633},"  └─",[627,1503,1504],{"class":636}," requestId:",[627,1506,1507],{"class":636}," 4a8ff3a8-...\n",[605,1509,554],{"id":1510},"uselogger",[540,1512,1513,1514,1516],{},"Use ",[544,1515,554],{}," to access the request-scoped logger from anywhere in the call stack without injecting the request object through your service layer:",[617,1518,1521],{"className":717,"code":1519,"filename":1520,"language":720,"meta":623,"style":623},"import { useLogger } from 'evlog\u002Fnestjs'\n\nexport class UsersService {\n  async 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}\n","src\u002Fusers.service.ts",[544,1522,1523,1541,1545,1556,1575,1587,1613,1617,1639,1685,1689,1696,1700],{"__ignoreMap":623},[627,1524,1525,1527,1529,1531,1533,1535,1537,1539],{"class":629,"line":630},[627,1526,728],{"class":727},[627,1528,732],{"class":731},[627,1530,1089],{"class":735},[627,1532,739],{"class":731},[627,1534,742],{"class":727},[627,1536,745],{"class":731},[627,1538,546],{"class":636},[627,1540,751],{"class":731},[627,1542,1543],{"class":629,"line":754},[627,1544,778],{"emptyLinePlaceholder":777},[627,1546,1547,1549,1551,1554],{"class":629,"line":774},[627,1548,848],{"class":727},[627,1550,852],{"class":851},[627,1552,1553],{"class":633}," UsersService",[627,1555,1133],{"class":731},[627,1557,1558,1560,1563,1565,1567,1569,1571,1573],{"class":629,"line":781},[627,1559,1157],{"class":851},[627,1561,1562],{"class":800}," findUser",[627,1564,791],{"class":731},[627,1566,1173],{"class":1181},[627,1568,804],{"class":731},[627,1570,1186],{"class":633},[627,1572,1189],{"class":731},[627,1574,1133],{"class":731},[627,1576,1577,1579,1581,1583,1585],{"class":629,"line":797},[627,1578,1196],{"class":851},[627,1580,1199],{"class":735},[627,1582,1202],{"class":731},[627,1584,1089],{"class":787},[627,1586,1207],{"class":800},[627,1588,1589,1591,1593,1595,1597,1599,1601,1603,1605,1607,1609,1611],{"class":629,"line":810},[627,1590,1216],{"class":735},[627,1592,816],{"class":731},[627,1594,1221],{"class":787},[627,1596,791],{"class":800},[627,1598,1226],{"class":731},[627,1600,1229],{"class":800},[627,1602,804],{"class":731},[627,1604,732],{"class":731},[627,1606,1236],{"class":735},[627,1608,739],{"class":731},[627,1610,739],{"class":731},[627,1612,842],{"class":800},[627,1614,1615],{"class":629,"line":828},[627,1616,778],{"emptyLinePlaceholder":777},[627,1618,1619,1621,1623,1625,1627,1629,1631,1633,1635,1637],{"class":629,"line":836},[627,1620,1196],{"class":851},[627,1622,1229],{"class":735},[627,1624,1202],{"class":731},[627,1626,1001],{"class":727},[627,1628,1260],{"class":735},[627,1630,816],{"class":731},[627,1632,1265],{"class":787},[627,1634,791],{"class":800},[627,1636,1173],{"class":735},[627,1638,842],{"class":800},[627,1640,1641,1643,1645,1647,1649,1651,1653,1655,1657,1659,1661,1663,1665,1667,1669,1671,1673,1675,1677,1679,1681,1683],{"class":629,"line":845},[627,1642,1216],{"class":735},[627,1644,816],{"class":731},[627,1646,1221],{"class":787},[627,1648,791],{"class":800},[627,1650,1226],{"class":731},[627,1652,1229],{"class":800},[627,1654,804],{"class":731},[627,1656,732],{"class":731},[627,1658,1293],{"class":800},[627,1660,804],{"class":731},[627,1662,1229],{"class":735},[627,1664,816],{"class":731},[627,1666,1302],{"class":735},[627,1668,1062],{"class":731},[627,1670,1307],{"class":800},[627,1672,804],{"class":731},[627,1674,1229],{"class":735},[627,1676,816],{"class":731},[627,1678,1316],{"class":735},[627,1680,739],{"class":731},[627,1682,739],{"class":731},[627,1684,842],{"class":800},[627,1686,1687],{"class":629,"line":989},[627,1688,778],{"emptyLinePlaceholder":777},[627,1690,1691,1693],{"class":629,"line":1014},[627,1692,1417],{"class":727},[627,1694,1695],{"class":735}," user\n",[627,1697,1698],{"class":629,"line":1249},[627,1699,1434],{"class":731},[627,1701,1702],{"class":629,"line":1274},[627,1703,1440],{"class":731},[617,1705,1707],{"className":717,"code":1706,"filename":1048,"language":720,"meta":623,"style":623},"@Controller('users')\nexport class UsersController {\n  @Get(':id')\n  findOne(@Param('id') id: string) {\n    return this.usersService.findUser(id)\n  }\n}\n",[544,1708,1709,1725,1735,1751,1780,1800,1804],{"__ignoreMap":623},[627,1710,1711,1713,1715,1717,1719,1721,1723],{"class":629,"line":630},[627,1712,784],{"class":731},[627,1714,1110],{"class":787},[627,1716,791],{"class":735},[627,1718,973],{"class":731},[627,1720,1117],{"class":636},[627,1722,973],{"class":731},[627,1724,842],{"class":735},[627,1726,1727,1729,1731,1733],{"class":629,"line":754},[627,1728,848],{"class":727},[627,1730,852],{"class":851},[627,1732,1130],{"class":633},[627,1734,1133],{"class":731},[627,1736,1737,1739,1741,1743,1745,1747,1749],{"class":629,"line":774},[627,1738,1138],{"class":731},[627,1740,1141],{"class":787},[627,1742,791],{"class":735},[627,1744,973],{"class":731},[627,1746,1148],{"class":636},[627,1748,973],{"class":731},[627,1750,842],{"class":735},[627,1752,1753,1756,1758,1760,1762,1764,1766,1768,1770,1772,1774,1776,1778],{"class":629,"line":781},[627,1754,1755],{"class":800},"  findOne",[627,1757,1163],{"class":731},[627,1759,1166],{"class":787},[627,1761,791],{"class":735},[627,1763,973],{"class":731},[627,1765,1173],{"class":636},[627,1767,973],{"class":731},[627,1769,1178],{"class":735},[627,1771,1173],{"class":1181},[627,1773,804],{"class":731},[627,1775,1186],{"class":633},[627,1777,1189],{"class":731},[627,1779,1133],{"class":731},[627,1781,1782,1784,1787,1790,1792,1794,1796,1798],{"class":629,"line":797},[627,1783,1417],{"class":727},[627,1785,1786],{"class":731}," this.",[627,1788,1789],{"class":735},"usersService",[627,1791,816],{"class":731},[627,1793,1265],{"class":787},[627,1795,791],{"class":800},[627,1797,1173],{"class":735},[627,1799,842],{"class":800},[627,1801,1802],{"class":629,"line":810},[627,1803,1434],{"class":731},[627,1805,1806],{"class":629,"line":828},[627,1807,1440],{"class":731},[540,1809,1810,1811,1813,1814,1816,1817,1819,1820,1823],{},"Both ",[544,1812,558],{}," and ",[544,1815,554],{}," return the same logger instance. ",[544,1818,554],{}," uses ",[544,1821,1822],{},"AsyncLocalStorage"," to propagate the logger across async boundaries.",[605,1825,1827,1828,1189],{"id":1826},"background-work-logfork","Background work (",[544,1829,1830],{},"log.fork",[540,1832,1513,1833,1836,1837,1839,1840,816],{},[544,1834,1835],{},"req.log.fork(label, fn)"," (or the logger from ",[544,1838,554],{}," in the same request) for child wide events. See ",[594,1841,1843],{"href":1842},"\u002Flearn\u002Fwide-events#after-emit-sealing-and-background-work","Wide events — After emit",[617,1845,1848],{"className":717,"code":1846,"filename":1847,"language":720,"meta":623,"style":623},"import { useLogger } from 'evlog\u002Fnestjs'\n\n@Post()\ncreate(@Req() req: Express.Request) {\n  req.log.fork!('enqueue', async () => {\n    const log = useLogger()\n    log.set({ queued: true })\n  })\n  return { ok: true }\n}\n","src\u002Forders.controller.ts",[544,1849,1850,1868,1872,1881,1900,1940,1952,1977,1984,2000],{"__ignoreMap":623},[627,1851,1852,1854,1856,1858,1860,1862,1864,1866],{"class":629,"line":630},[627,1853,728],{"class":727},[627,1855,732],{"class":731},[627,1857,1089],{"class":735},[627,1859,739],{"class":731},[627,1861,742],{"class":727},[627,1863,745],{"class":731},[627,1865,546],{"class":636},[627,1867,751],{"class":731},[627,1869,1870],{"class":629,"line":754},[627,1871,778],{"emptyLinePlaceholder":777},[627,1873,1874,1876,1879],{"class":629,"line":774},[627,1875,784],{"class":731},[627,1877,1878],{"class":787},"Post",[627,1880,1207],{"class":735},[627,1882,1883,1885,1887,1890,1893,1895,1898],{"class":629,"line":781},[627,1884,1008],{"class":787},[627,1886,1163],{"class":735},[627,1888,1889],{"class":787},"Req",[627,1891,1892],{"class":735},"() req: Express",[627,1894,816],{"class":731},[627,1896,1897],{"class":735},"Request) ",[627,1899,794],{"class":731},[627,1901,1902,1905,1907,1910,1912,1915,1918,1920,1922,1925,1927,1929,1932,1935,1938],{"class":629,"line":797},[627,1903,1904],{"class":735},"  req",[627,1906,816],{"class":731},[627,1908,1909],{"class":735},"log",[627,1911,816],{"class":731},[627,1913,1914],{"class":787},"fork",[627,1916,1917],{"class":731},"!",[627,1919,791],{"class":800},[627,1921,973],{"class":731},[627,1923,1924],{"class":636},"enqueue",[627,1926,973],{"class":731},[627,1928,1062],{"class":731},[627,1930,1931],{"class":851}," async",[627,1933,1934],{"class":731}," ()",[627,1936,1937],{"class":851}," =>",[627,1939,1133],{"class":731},[627,1941,1942,1944,1946,1948,1950],{"class":629,"line":810},[627,1943,1196],{"class":851},[627,1945,1199],{"class":735},[627,1947,1202],{"class":731},[627,1949,1089],{"class":787},[627,1951,1207],{"class":800},[627,1953,1954,1956,1958,1960,1962,1964,1967,1969,1973,1975],{"class":629,"line":828},[627,1955,1216],{"class":735},[627,1957,816],{"class":731},[627,1959,1221],{"class":787},[627,1961,791],{"class":800},[627,1963,1226],{"class":731},[627,1965,1966],{"class":800}," queued",[627,1968,804],{"class":731},[627,1970,1972],{"class":1971},"sfNiH"," true",[627,1974,739],{"class":731},[627,1976,842],{"class":800},[627,1978,1979,1982],{"class":629,"line":836},[627,1980,1981],{"class":731},"  }",[627,1983,842],{"class":800},[627,1985,1986,1989,1991,1994,1996,1998],{"class":629,"line":845},[627,1987,1988],{"class":727},"  return",[627,1990,732],{"class":731},[627,1992,1993],{"class":800}," ok",[627,1995,804],{"class":731},[627,1997,1972],{"class":1971},[627,1999,1428],{"class":731},[627,2001,2002],{"class":629,"line":989},[627,2003,1440],{"class":731},[605,2005,2007],{"id":2006},"error-handling","Error Handling",[540,2009,1513,2010,2013,2014,2017,2018,2021,2022,2025],{},[544,2011,2012],{},"createError"," for structured errors with ",[544,2015,2016],{},"why",", ",[544,2019,2020],{},"fix",", and ",[544,2023,2024],{},"link"," fields. Create a NestJS exception filter to log and format errors:",[617,2027,2030],{"className":717,"code":2028,"filename":2029,"language":720,"meta":623,"style":623},"import { Catch } from '@nestjs\u002Fcommon'\nimport type { ExceptionFilter, ArgumentsHost } from '@nestjs\u002Fcommon'\nimport { parseError } from 'evlog'\nimport { useLogger } from 'evlog\u002Fnestjs'\n\n@Catch()\nexport class EvlogExceptionFilter implements ExceptionFilter {\n  catch(exception: unknown, host: ArgumentsHost) {\n    const response = host.switchToHttp().getResponse()\n    const error = exception instanceof Error ? exception : new Error(String(exception))\n\n    try {\n      useLogger().error(error)\n    } catch {\n      \u002F\u002F Outside an evlog request scope — log is unavailable\n    }\n\n    const parsed = parseError(error)\n    response.status(parsed.status).json({\n      message: parsed.message,\n      why: parsed.why,\n      fix: parsed.fix,\n      link: parsed.link,\n    })\n  }\n}\n","src\u002Fevlog-exception.filter.ts",[544,2031,2032,2051,2078,2097,2115,2119,2128,2144,2172,2197,2240,2244,2251,2269,2279,2285,2290,2294,2311,2341,2357,2373,2389,2405,2412,2417],{"__ignoreMap":623},[627,2033,2034,2036,2038,2041,2043,2045,2047,2049],{"class":629,"line":630},[627,2035,728],{"class":727},[627,2037,732],{"class":731},[627,2039,2040],{"class":735}," Catch",[627,2042,739],{"class":731},[627,2044,742],{"class":727},[627,2046,745],{"class":731},[627,2048,748],{"class":636},[627,2050,751],{"class":731},[627,2052,2053,2055,2058,2060,2063,2065,2068,2070,2072,2074,2076],{"class":629,"line":754},[627,2054,728],{"class":727},[627,2056,2057],{"class":727}," type",[627,2059,732],{"class":731},[627,2061,2062],{"class":735}," ExceptionFilter",[627,2064,1062],{"class":731},[627,2066,2067],{"class":735}," ArgumentsHost",[627,2069,739],{"class":731},[627,2071,742],{"class":727},[627,2073,745],{"class":731},[627,2075,748],{"class":636},[627,2077,751],{"class":731},[627,2079,2080,2082,2084,2087,2089,2091,2093,2095],{"class":629,"line":774},[627,2081,728],{"class":727},[627,2083,732],{"class":731},[627,2085,2086],{"class":735}," parseError",[627,2088,739],{"class":731},[627,2090,742],{"class":727},[627,2092,745],{"class":731},[627,2094,917],{"class":636},[627,2096,751],{"class":731},[627,2098,2099,2101,2103,2105,2107,2109,2111,2113],{"class":629,"line":781},[627,2100,728],{"class":727},[627,2102,732],{"class":731},[627,2104,1089],{"class":735},[627,2106,739],{"class":731},[627,2108,742],{"class":727},[627,2110,745],{"class":731},[627,2112,546],{"class":636},[627,2114,751],{"class":731},[627,2116,2117],{"class":629,"line":797},[627,2118,778],{"emptyLinePlaceholder":777},[627,2120,2121,2123,2126],{"class":629,"line":810},[627,2122,784],{"class":731},[627,2124,2125],{"class":787},"Catch",[627,2127,1207],{"class":735},[627,2129,2130,2132,2134,2137,2140,2142],{"class":629,"line":828},[627,2131,848],{"class":727},[627,2133,852],{"class":851},[627,2135,2136],{"class":633}," EvlogExceptionFilter",[627,2138,2139],{"class":851}," implements",[627,2141,2062],{"class":633},[627,2143,1133],{"class":731},[627,2145,2146,2149,2151,2154,2156,2159,2161,2164,2166,2168,2170],{"class":629,"line":836},[627,2147,2148],{"class":800},"  catch",[627,2150,791],{"class":731},[627,2152,2153],{"class":1181},"exception",[627,2155,804],{"class":731},[627,2157,2158],{"class":633}," unknown",[627,2160,1062],{"class":731},[627,2162,2163],{"class":1181}," host",[627,2165,804],{"class":731},[627,2167,2067],{"class":633},[627,2169,1189],{"class":731},[627,2171,1133],{"class":731},[627,2173,2174,2176,2179,2181,2183,2185,2188,2190,2192,2195],{"class":629,"line":845},[627,2175,1196],{"class":851},[627,2177,2178],{"class":735}," response",[627,2180,1202],{"class":731},[627,2182,2163],{"class":735},[627,2184,816],{"class":731},[627,2186,2187],{"class":787},"switchToHttp",[627,2189,822],{"class":800},[627,2191,816],{"class":731},[627,2193,2194],{"class":787},"getResponse",[627,2196,1207],{"class":800},[627,2198,2199,2201,2204,2206,2209,2212,2215,2218,2220,2223,2226,2228,2230,2233,2235,2237],{"class":629,"line":989},[627,2200,1196],{"class":851},[627,2202,2203],{"class":735}," error",[627,2205,1202],{"class":731},[627,2207,2208],{"class":735}," exception",[627,2210,2211],{"class":731}," instanceof",[627,2213,2214],{"class":633}," Error",[627,2216,2217],{"class":731}," ?",[627,2219,2208],{"class":735},[627,2221,2222],{"class":731}," :",[627,2224,2225],{"class":731}," new",[627,2227,2214],{"class":787},[627,2229,791],{"class":800},[627,2231,2232],{"class":787},"String",[627,2234,791],{"class":800},[627,2236,2153],{"class":735},[627,2238,2239],{"class":800},"))\n",[627,2241,2242],{"class":629,"line":1014},[627,2243,778],{"emptyLinePlaceholder":777},[627,2245,2246,2249],{"class":629,"line":1249},[627,2247,2248],{"class":727},"    try",[627,2250,1133],{"class":731},[627,2252,2253,2256,2258,2260,2263,2265,2267],{"class":629,"line":1274},[627,2254,2255],{"class":787},"      useLogger",[627,2257,822],{"class":800},[627,2259,816],{"class":731},[627,2261,2262],{"class":787},"error",[627,2264,791],{"class":800},[627,2266,2262],{"class":735},[627,2268,842],{"class":800},[627,2270,2271,2274,2277],{"class":629,"line":1325},[627,2272,2273],{"class":731},"    }",[627,2275,2276],{"class":727}," catch",[627,2278,1133],{"class":731},[627,2280,2281],{"class":629,"line":1330},[627,2282,2284],{"class":2283},"sHwdD","      \u002F\u002F Outside an evlog request scope — log is unavailable\n",[627,2286,2287],{"class":629,"line":1355},[627,2288,2289],{"class":731},"    }\n",[627,2291,2292],{"class":629,"line":1409},[627,2293,778],{"emptyLinePlaceholder":777},[627,2295,2296,2298,2301,2303,2305,2307,2309],{"class":629,"line":1414},[627,2297,1196],{"class":851},[627,2299,2300],{"class":735}," parsed",[627,2302,1202],{"class":731},[627,2304,2086],{"class":787},[627,2306,791],{"class":800},[627,2308,2262],{"class":735},[627,2310,842],{"class":800},[627,2312,2313,2316,2318,2321,2323,2326,2328,2330,2332,2334,2337,2339],{"class":629,"line":1431},[627,2314,2315],{"class":735},"    response",[627,2317,816],{"class":731},[627,2319,2320],{"class":787},"status",[627,2322,791],{"class":800},[627,2324,2325],{"class":735},"parsed",[627,2327,816],{"class":731},[627,2329,2320],{"class":735},[627,2331,1189],{"class":800},[627,2333,816],{"class":731},[627,2335,2336],{"class":787},"json",[627,2338,791],{"class":800},[627,2340,794],{"class":731},[627,2342,2343,2346,2348,2350,2352,2355],{"class":629,"line":1437},[627,2344,2345],{"class":800},"      message",[627,2347,804],{"class":731},[627,2349,2300],{"class":735},[627,2351,816],{"class":731},[627,2353,2354],{"class":735},"message",[627,2356,825],{"class":731},[627,2358,2360,2363,2365,2367,2369,2371],{"class":629,"line":2359},21,[627,2361,2362],{"class":800},"      why",[627,2364,804],{"class":731},[627,2366,2300],{"class":735},[627,2368,816],{"class":731},[627,2370,2016],{"class":735},[627,2372,825],{"class":731},[627,2374,2376,2379,2381,2383,2385,2387],{"class":629,"line":2375},22,[627,2377,2378],{"class":800},"      fix",[627,2380,804],{"class":731},[627,2382,2300],{"class":735},[627,2384,816],{"class":731},[627,2386,2020],{"class":735},[627,2388,825],{"class":731},[627,2390,2392,2395,2397,2399,2401,2403],{"class":629,"line":2391},23,[627,2393,2394],{"class":800},"      link",[627,2396,804],{"class":731},[627,2398,2300],{"class":735},[627,2400,816],{"class":731},[627,2402,2024],{"class":735},[627,2404,825],{"class":731},[627,2406,2408,2410],{"class":629,"line":2407},24,[627,2409,2273],{"class":731},[627,2411,842],{"class":800},[627,2413,2415],{"class":629,"line":2414},25,[627,2416,1434],{"class":731},[627,2418,2420],{"class":629,"line":2419},26,[627,2421,1440],{"class":731},[540,2423,2424],{},"Apply it to your controllers:",[617,2426,2429],{"className":717,"code":2427,"filename":2428,"language":720,"meta":623,"style":623},"import { Controller, Get, UseFilters } from '@nestjs\u002Fcommon'\nimport { createError } from 'evlog'\nimport { EvlogExceptionFilter } from '.\u002Fevlog-exception.filter'\n\n@Controller()\n@UseFilters(new EvlogExceptionFilter())\nexport class CheckoutController {\n  @Get('checkout')\n  checkout() {\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}\n","src\u002Fcheckout.controller.ts",[544,2430,2431,2458,2477,2496,2500,2508,2525,2536,2553,2562,2573,2588,2600,2615,2630,2645,2651,2655],{"__ignoreMap":623},[627,2432,2433,2435,2437,2439,2441,2443,2445,2448,2450,2452,2454,2456],{"class":629,"line":630},[627,2434,728],{"class":727},[627,2436,732],{"class":731},[627,2438,1059],{"class":735},[627,2440,1062],{"class":731},[627,2442,1065],{"class":735},[627,2444,1062],{"class":731},[627,2446,2447],{"class":735}," UseFilters",[627,2449,739],{"class":731},[627,2451,742],{"class":727},[627,2453,745],{"class":731},[627,2455,748],{"class":636},[627,2457,751],{"class":731},[627,2459,2460,2462,2464,2467,2469,2471,2473,2475],{"class":629,"line":754},[627,2461,728],{"class":727},[627,2463,732],{"class":731},[627,2465,2466],{"class":735}," createError",[627,2468,739],{"class":731},[627,2470,742],{"class":727},[627,2472,745],{"class":731},[627,2474,917],{"class":636},[627,2476,751],{"class":731},[627,2478,2479,2481,2483,2485,2487,2489,2491,2494],{"class":629,"line":774},[627,2480,728],{"class":727},[627,2482,732],{"class":731},[627,2484,2136],{"class":735},[627,2486,739],{"class":731},[627,2488,742],{"class":727},[627,2490,745],{"class":731},[627,2492,2493],{"class":636},".\u002Fevlog-exception.filter",[627,2495,751],{"class":731},[627,2497,2498],{"class":629,"line":781},[627,2499,778],{"emptyLinePlaceholder":777},[627,2501,2502,2504,2506],{"class":629,"line":797},[627,2503,784],{"class":731},[627,2505,1110],{"class":787},[627,2507,1207],{"class":735},[627,2509,2510,2512,2515,2517,2520,2522],{"class":629,"line":810},[627,2511,784],{"class":731},[627,2513,2514],{"class":787},"UseFilters",[627,2516,791],{"class":735},[627,2518,2519],{"class":731},"new",[627,2521,2136],{"class":787},[627,2523,2524],{"class":735},"())\n",[627,2526,2527,2529,2531,2534],{"class":629,"line":828},[627,2528,848],{"class":727},[627,2530,852],{"class":851},[627,2532,2533],{"class":633}," CheckoutController",[627,2535,1133],{"class":731},[627,2537,2538,2540,2542,2544,2546,2549,2551],{"class":629,"line":836},[627,2539,1138],{"class":731},[627,2541,1141],{"class":787},[627,2543,791],{"class":735},[627,2545,973],{"class":731},[627,2547,2548],{"class":636},"checkout",[627,2550,973],{"class":731},[627,2552,842],{"class":735},[627,2554,2555,2558,2560],{"class":629,"line":845},[627,2556,2557],{"class":800},"  checkout",[627,2559,822],{"class":731},[627,2561,1133],{"class":731},[627,2563,2564,2567,2569,2571],{"class":629,"line":989},[627,2565,2566],{"class":727},"    throw",[627,2568,2466],{"class":787},[627,2570,791],{"class":800},[627,2572,794],{"class":731},[627,2574,2575,2577,2579,2581,2584,2586],{"class":629,"line":1014},[627,2576,2345],{"class":800},[627,2578,804],{"class":731},[627,2580,745],{"class":731},[627,2582,2583],{"class":636},"Payment failed",[627,2585,973],{"class":731},[627,2587,825],{"class":731},[627,2589,2590,2593,2595,2598],{"class":629,"line":1249},[627,2591,2592],{"class":800},"      status",[627,2594,804],{"class":731},[627,2596,2597],{"class":1030}," 402",[627,2599,825],{"class":731},[627,2601,2602,2604,2606,2608,2611,2613],{"class":629,"line":1274},[627,2603,2362],{"class":800},[627,2605,804],{"class":731},[627,2607,745],{"class":731},[627,2609,2610],{"class":636},"Card declined by issuer",[627,2612,973],{"class":731},[627,2614,825],{"class":731},[627,2616,2617,2619,2621,2623,2626,2628],{"class":629,"line":1325},[627,2618,2378],{"class":800},[627,2620,804],{"class":731},[627,2622,745],{"class":731},[627,2624,2625],{"class":636},"Try a different payment method",[627,2627,973],{"class":731},[627,2629,825],{"class":731},[627,2631,2632,2634,2636,2638,2641,2643],{"class":629,"line":1330},[627,2633,2394],{"class":800},[627,2635,804],{"class":731},[627,2637,745],{"class":731},[627,2639,2640],{"class":636},"https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined",[627,2642,973],{"class":731},[627,2644,825],{"class":731},[627,2646,2647,2649],{"class":629,"line":1355},[627,2648,2273],{"class":731},[627,2650,842],{"class":800},[627,2652,2653],{"class":629,"line":1409},[627,2654,1434],{"class":731},[627,2656,2657],{"class":629,"line":1414},[627,2658,1440],{"class":731},[540,2660,2661],{},"The error is captured and logged with both the custom context and structured error fields:",[617,2663,2665],{"className":619,"code":2664,"filename":1447,"language":622,"meta":623,"style":623},"14:58:20 ERROR [my-api] GET \u002Fcheckout 402 in 3ms\n  ├─ error: name=EvlogError message=Payment failed status=402\n  └─ requestId: 880a50ac-...\n",[544,2666,2667,2678,2700],{"__ignoreMap":623},[627,2668,2669,2672,2675],{"class":629,"line":630},[627,2670,2671],{"class":633},"14:58:20",[627,2673,2674],{"class":636}," ERROR",[627,2676,2677],{"class":735}," [my-api] GET \u002Fcheckout 402 in 3ms\n",[627,2679,2680,2682,2685,2688,2691,2694,2697],{"class":629,"line":754},[627,2681,1465],{"class":633},[627,2683,2684],{"class":636}," error:",[627,2686,2687],{"class":636}," name=EvlogError",[627,2689,2690],{"class":636}," message=Payment",[627,2692,2693],{"class":636}," failed",[627,2695,2696],{"class":636}," status=",[627,2698,2699],{"class":1030},"402\n",[627,2701,2702,2704,2706],{"class":629,"line":774},[627,2703,1501],{"class":633},[627,2705,1504],{"class":636},[627,2707,2708],{"class":636}," 880a50ac-...\n",[605,2710,504],{"id":2711},"configuration",[540,2713,2714,2715,2718,2719,2721],{},"See the ",[594,2716,2717],{"href":505},"Configuration reference"," for all available options (",[544,2720,947],{},", middleware options, sampling, silent mode, etc.).",[605,2723,2725],{"id":2724},"drain-enrichers","Drain & Enrichers",[540,2727,2728,2729,804],{},"Configure drain adapters and enrichers in ",[544,2730,550],{},[617,2732,2734],{"className":717,"code":2733,"filename":719,"language":720,"meta":623,"style":623},"import { Module } from '@nestjs\u002Fcommon'\nimport { EvlogModule } from 'evlog\u002Fnestjs'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createUserAgentEnricher } from 'evlog\u002Fenrichers'\n\nconst userAgent = createUserAgentEnricher()\n\n@Module({\n  imports: [\n    EvlogModule.forRoot({\n      drain: createAxiomDrain(),\n      enrich: (ctx) => {\n        userAgent(ctx)\n        ctx.event.region = process.env.FLY_REGION\n      },\n    }),\n  ],\n})\nexport class AppModule {}\n",[544,2735,2736,2754,2772,2792,2812,2816,2829,2833,2843,2851,2863,2876,2895,2906,2936,2941,2949,2955,2961],{"__ignoreMap":623},[627,2737,2738,2740,2742,2744,2746,2748,2750,2752],{"class":629,"line":630},[627,2739,728],{"class":727},[627,2741,732],{"class":731},[627,2743,736],{"class":735},[627,2745,739],{"class":731},[627,2747,742],{"class":727},[627,2749,745],{"class":731},[627,2751,748],{"class":636},[627,2753,751],{"class":731},[627,2755,2756,2758,2760,2762,2764,2766,2768,2770],{"class":629,"line":754},[627,2757,728],{"class":727},[627,2759,732],{"class":731},[627,2761,761],{"class":735},[627,2763,739],{"class":731},[627,2765,742],{"class":727},[627,2767,745],{"class":731},[627,2769,546],{"class":636},[627,2771,751],{"class":731},[627,2773,2774,2776,2778,2781,2783,2785,2787,2790],{"class":629,"line":774},[627,2775,728],{"class":727},[627,2777,732],{"class":731},[627,2779,2780],{"class":735}," createAxiomDrain",[627,2782,739],{"class":731},[627,2784,742],{"class":727},[627,2786,745],{"class":731},[627,2788,2789],{"class":636},"evlog\u002Faxiom",[627,2791,751],{"class":731},[627,2793,2794,2796,2798,2801,2803,2805,2807,2810],{"class":629,"line":781},[627,2795,728],{"class":727},[627,2797,732],{"class":731},[627,2799,2800],{"class":735}," createUserAgentEnricher",[627,2802,739],{"class":731},[627,2804,742],{"class":727},[627,2806,745],{"class":731},[627,2808,2809],{"class":636},"evlog\u002Fenrichers",[627,2811,751],{"class":731},[627,2813,2814],{"class":629,"line":797},[627,2815,778],{"emptyLinePlaceholder":777},[627,2817,2818,2820,2823,2825,2827],{"class":629,"line":810},[627,2819,992],{"class":851},[627,2821,2822],{"class":735}," userAgent ",[627,2824,998],{"class":731},[627,2826,2800],{"class":787},[627,2828,1207],{"class":735},[627,2830,2831],{"class":629,"line":828},[627,2832,778],{"emptyLinePlaceholder":777},[627,2834,2835,2837,2839,2841],{"class":629,"line":836},[627,2836,784],{"class":731},[627,2838,788],{"class":787},[627,2840,791],{"class":735},[627,2842,794],{"class":731},[627,2844,2845,2847,2849],{"class":629,"line":845},[627,2846,801],{"class":800},[627,2848,804],{"class":731},[627,2850,807],{"class":735},[627,2852,2853,2855,2857,2859,2861],{"class":629,"line":989},[627,2854,813],{"class":735},[627,2856,816],{"class":731},[627,2858,819],{"class":787},[627,2860,791],{"class":735},[627,2862,794],{"class":731},[627,2864,2865,2868,2870,2872,2874],{"class":629,"line":1014},[627,2866,2867],{"class":800},"      drain",[627,2869,804],{"class":731},[627,2871,2780],{"class":787},[627,2873,822],{"class":735},[627,2875,825],{"class":731},[627,2877,2878,2881,2883,2886,2889,2891,2893],{"class":629,"line":1249},[627,2879,2880],{"class":787},"      enrich",[627,2882,804],{"class":731},[627,2884,2885],{"class":731}," (",[627,2887,2888],{"class":1181},"ctx",[627,2890,1189],{"class":731},[627,2892,1937],{"class":851},[627,2894,1133],{"class":731},[627,2896,2897,2900,2902,2904],{"class":629,"line":1274},[627,2898,2899],{"class":787},"        userAgent",[627,2901,791],{"class":800},[627,2903,2888],{"class":735},[627,2905,842],{"class":800},[627,2907,2908,2911,2913,2916,2918,2921,2923,2926,2928,2931,2933],{"class":629,"line":1325},[627,2909,2910],{"class":735},"        ctx",[627,2912,816],{"class":731},[627,2914,2915],{"class":735},"event",[627,2917,816],{"class":731},[627,2919,2920],{"class":735},"region",[627,2922,1202],{"class":731},[627,2924,2925],{"class":735}," process",[627,2927,816],{"class":731},[627,2929,2930],{"class":735},"env",[627,2932,816],{"class":731},[627,2934,2935],{"class":735},"FLY_REGION\n",[627,2937,2938],{"class":629,"line":1330},[627,2939,2940],{"class":731},"      },\n",[627,2942,2943,2945,2947],{"class":629,"line":1355},[627,2944,2273],{"class":731},[627,2946,1189],{"class":735},[627,2948,825],{"class":731},[627,2950,2951,2953],{"class":629,"line":1409},[627,2952,831],{"class":735},[627,2954,825],{"class":731},[627,2956,2957,2959],{"class":629,"line":1414},[627,2958,839],{"class":731},[627,2960,842],{"class":735},[627,2962,2963,2965,2967,2969],{"class":629,"line":1431},[627,2964,848],{"class":727},[627,2966,852],{"class":851},[627,2968,855],{"class":633},[627,2970,858],{"class":731},[609,2972,2974],{"id":2973},"async-configuration","Async Configuration",[540,2976,1513,2977,2980,2981,2984],{},[544,2978,2979],{},"forRootAsync()"," when options depend on other providers (e.g. ",[544,2982,2983],{},"ConfigService","):",[617,2986,2988],{"className":717,"code":2987,"filename":719,"language":720,"meta":623,"style":623},"import { Module } from '@nestjs\u002Fcommon'\nimport { ConfigModule, ConfigService } from '@nestjs\u002Fconfig'\nimport { EvlogModule } from 'evlog\u002Fnestjs'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\n@Module({\n  imports: [\n    ConfigModule.forRoot(),\n    EvlogModule.forRootAsync({\n      imports: [ConfigModule],\n      inject: [ConfigService],\n      useFactory: (config: ConfigService) => ({\n        drain: createAxiomDrain({ apiKey: config.get('AXIOM_API_KEY') }),\n      }),\n    }),\n  ],\n})\nexport class AppModule 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