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Install",[617,618,619,647,663,679],"code-group",{},[620,621,627],"pre",{"className":622,"code":623,"filename":624,"language":625,"meta":626,"style":626},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add evlog @orpc\u002Fserver\n","pnpm","bash","",[514,628,629],{"__ignoreMap":626},[630,631,634,637,641,644],"span",{"class":632,"line":633},"line",1,[630,635,624],{"class":636},"sBMFI",[630,638,640],{"class":639},"sfazB"," add",[630,642,643],{"class":639}," evlog",[630,645,646],{"class":639}," @orpc\u002Fserver\n",[620,648,651],{"className":622,"code":649,"filename":650,"language":625,"meta":626,"style":626},"bun add evlog @orpc\u002Fserver\n","bun",[514,652,653],{"__ignoreMap":626},[630,654,655,657,659,661],{"class":632,"line":633},[630,656,650],{"class":636},[630,658,640],{"class":639},[630,660,643],{"class":639},[630,662,646],{"class":639},[620,664,667],{"className":622,"code":665,"filename":666,"language":625,"meta":626,"style":626},"yarn add evlog @orpc\u002Fserver\n","yarn",[514,668,669],{"__ignoreMap":626},[630,670,671,673,675,677],{"class":632,"line":633},[630,672,666],{"class":636},[630,674,640],{"class":639},[630,676,643],{"class":639},[630,678,646],{"class":639},[620,680,683],{"className":622,"code":681,"filename":682,"language":625,"meta":626,"style":626},"npm install evlog @orpc\u002Fserver\n","npm",[514,684,685],{"__ignoreMap":626},[630,686,687,689,692,694],{"class":632,"line":633},[630,688,682],{"class":636},[630,690,691],{"class":639}," install",[630,693,643],{"class":639},[630,695,646],{"class":639},[612,697,699],{"id":698},"_2-initialize-and-wire-the-wrappers","2. Initialize and wire the wrappers",[620,701,706],{"className":702,"code":703,"filename":704,"language":705,"meta":626,"style":626},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { os } from '@orpc\u002Fserver'\nimport { RPCHandler } from '@orpc\u002Fserver\u002Ffetch'\nimport { initLogger } from 'evlog'\nimport { evlog, withEvlog, type EvlogOrpcContext } from 'evlog\u002Forpc'\n\ninitLogger({\n  env: { service: 'my-rpc' },\n})\n\nconst base = os.$context\u003CEvlogOrpcContext>().use(evlog())\n\nconst router = {\n  health: base.handler(({ context }) => {\n    context.log.set({ route: 'health' })\n    return { ok: true }\n  }),\n}\n\nconst handler = withEvlog(new RPCHandler(router))\n\nexport default async function fetch(request: Request) {\n  const { matched, response } = await handler.handle(request, { prefix: '\u002Frpc' })\n  return matched ? response : new Response('Not Found', { status: 404 })\n}\n","server\u002Forpc.ts","typescript",[514,707,708,737,758,779,812,819,832,860,869,874,918,923,936,969,1006,1026,1038,1044,1049,1071,1076,1108,1164,1212],{"__ignoreMap":626},[630,709,710,714,718,722,725,728,731,734],{"class":632,"line":633},[630,711,713],{"class":712},"s7zQu","import",[630,715,717],{"class":716},"sMK4o"," {",[630,719,721],{"class":720},"sTEyZ"," os",[630,723,724],{"class":716}," }",[630,726,727],{"class":712}," from",[630,729,730],{"class":716}," '",[630,732,733],{"class":639},"@orpc\u002Fserver",[630,735,736],{"class":716},"'\n",[630,738,740,742,744,747,749,751,753,756],{"class":632,"line":739},2,[630,741,713],{"class":712},[630,743,717],{"class":716},[630,745,746],{"class":720}," 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const",[630,1115,717],{"class":716},[630,1117,1118],{"class":720}," matched",[630,1120,790],{"class":716},[630,1122,1123],{"class":720}," response",[630,1125,724],{"class":716},[630,1127,1128],{"class":716}," =",[630,1130,1131],{"class":712}," await",[630,1133,1134],{"class":720}," handler",[630,1136,541],{"class":716},[630,1138,1139],{"class":824},"handle",[630,1141,828],{"class":837},[630,1143,1098],{"class":720},[630,1145,790],{"class":716},[630,1147,717],{"class":716},[630,1149,1150],{"class":837}," prefix",[630,1152,841],{"class":716},[630,1154,730],{"class":716},[630,1156,1157],{"class":639},"\u002Frpc",[630,1159,856],{"class":716},[630,1161,724],{"class":716},[630,1163,868],{"class":837},[630,1165,1167,1170,1172,1175,1177,1180,1183,1186,1188,1190,1193,1195,1197,1199,1202,1204,1208,1210],{"class":632,"line":1166},23,[630,1168,1169],{"class":712},"  return",[630,1171,1118],{"class":720},[630,1173,1174],{"class":716}," ?",[630,1176,1123],{"class":720},[630,1178,1179],{"class":716}," :",[630,1181,1182],{"class":716}," new",[630,1184,1185],{"class":824}," Response",[630,1187,828],{"class":837},[630,1189,856],{"class":716},[630,1191,1192],{"class":639},"Not Found",[630,1194,856],{"class":716},[630,1196,790],{"class":716},[630,1198,717],{"class":716},[630,1200,1201],{"class":837}," status",[630,1203,841],{"class":716},[630,1205,1207],{"class":1206},"sbssI"," 404",[630,1209,724],{"class":716},[630,1211,868],{"class":837},[630,1213,1215],{"class":632,"line":1214},24,[630,1216,1043],{"class":716},[543,1218,1219,1222,1223,1229,1230,1233,1234,1237],{"color":545,"icon":491},[547,1220,1221],{},"Using Vite?"," The ",[552,1224,1225,1228],{"href":489},[514,1226,1227],{},"evlog\u002Fvite"," plugin"," replaces the ",[514,1231,1232],{},"initLogger()"," call with compile-time auto-initialization, strips ",[514,1235,1236],{},"log.debug()"," from production builds, and injects source locations.",[511,1239,1240,1242,1243,1246,1247,1249,1250,541],{},[514,1241,899],{}," declares ",[514,1244,1245],{},"log: RequestLogger"," on the procedure context so ",[514,1248,536],{}," is fully typed in every procedure that descends from ",[514,1251,1252],{},"base",[608,1254,46],{"id":1255},"wide-events",[511,1257,1258],{},"Build up context progressively through your handler. One request = one wide event:",[620,1260,1262],{"className":702,"code":1261,"filename":704,"language":705,"meta":626,"style":626},"const getUser = base\n  .input(z.object({ id: z.string() }))\n  .handler(async ({ input, context }) => {\n    context.log.set({ user: { id: input.id } })\n\n    const user = await db.findUser(input.id)\n    context.log.set({ user: { name: user.name, plan: user.plan } })\n\n    const orders = await db.findOrders(input.id)\n    context.log.set({ orders: { count: orders.length, totalRevenue: sum(orders) } })\n\n    return { user, orders }\n  })\n",[514,1263,1264,1276,1317,1344,1384,1388,1417,1471,1475,1503,1561,1565,1579],{"__ignoreMap":626},[630,1265,1266,1268,1271,1273],{"class":632,"line":633},[630,1267,880],{"class":879},[630,1269,1270],{"class":720}," getUser ",[630,1272,886],{"class":716},[630,1274,1275],{"class":720}," 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plan",[630,1457,841],{"class":716},[630,1459,1362],{"class":720},[630,1461,541],{"class":716},[630,1463,1464],{"class":720},"plan",[630,1466,724],{"class":716},[630,1468,724],{"class":716},[630,1470,868],{"class":837},[630,1472,1473],{"class":632,"line":862},[630,1474,818],{"emptyLinePlaceholder":817},[630,1476,1477,1479,1482,1484,1486,1488,1490,1493,1495,1497,1499,1501],{"class":632,"line":871},[630,1478,1392],{"class":879},[630,1480,1481],{"class":720}," orders",[630,1483,1128],{"class":716},[630,1485,1131],{"class":712},[630,1487,1401],{"class":720},[630,1489,541],{"class":716},[630,1491,1492],{"class":824},"findOrders",[630,1494,828],{"class":837},[630,1496,1283],{"class":720},[630,1498,541],{"class":716},[630,1500,1377],{"class":720},[630,1502,868],{"class":837},[630,1504,1505,1507,1509,1511,1513,1515,1517,1519,1521,1523,1525,1528,1530,1532,1534,1537,1539,1542,1544,1547,1549,1552,1555,1557,1559],{"class":632,"line":876},[630,1506,974],{"class":720},[630,1508,541],{"class":716},[630,1510,979],{"class":720},[630,1512,541],{"class":716},[630,1514,984],{"class":824},[630,1516,828],{"class":837},[630,1518,989],{"class":716},[630,1520,1481],{"class":837},[630,1522,841],{"class":716},[630,1524,717],{"class":716},[630,1526,1527],{"class":837}," count",[630,1529,841],{"class":716},[630,1531,1481],{"class":720},[630,1533,541],{"class":716},[630,1535,1536],{"class":720},"length",[630,1538,790],{"class":716},[630,1540,1541],{"class":837}," totalRevenue",[630,1543,841],{"class":716},[630,1545,1546],{"class":824}," sum",[630,1548,828],{"class":837},[630,1550,1551],{"class":720},"orders",[630,1553,1554],{"class":837},") ",[630,1556,865],{"class":716},[630,1558,724],{"class":716},[630,1560,868],{"class":837},[630,1562,1563],{"class":632,"line":920},[630,1564,818],{"emptyLinePlaceholder":817},[630,1566,1567,1569,1571,1573,1575,1577],{"class":632,"line":925},[630,1568,1011],{"class":712},[630,1570,717],{"class":716},[630,1572,1362],{"class":720},[630,1574,790],{"class":716},[630,1576,1481],{"class":720},[630,1578,1025],{"class":716},[630,1580,1581,1583],{"class":632,"line":938},[630,1582,1031],{"class":716},[630,1584,868],{"class":720},[511,1586,1587,1588,1590,1591,1594,1595,1598],{},"All fields are merged into a single wide event emitted when the request completes. The ",[514,1589,540],{}," field is filled automatically from the procedure path (nested routers like ",[514,1592,1593],{},"users.profile.get"," surface as ",[514,1596,1597],{},"operation: 'users.profile.get'","):",[620,1600,1603],{"className":622,"code":1601,"filename":1602,"language":625,"meta":626,"style":626},"14:58:15 INFO [my-rpc] POST \u002Frpc\u002FgetUser 200 in 12ms\n  ├─ operation: getUser\n  ├─ orders: count=2 totalRevenue=6298\n  ├─ user: id=usr_123 name=Alice plan=pro\n  └─ requestId: 4a8ff3a8-...\n","Terminal output",[514,1604,1605,1616,1627,1646,1662],{"__ignoreMap":626},[630,1606,1607,1610,1613],{"class":632,"line":633},[630,1608,1609],{"class":636},"14:58:15",[630,1611,1612],{"class":639}," INFO",[630,1614,1615],{"class":720}," [my-rpc] POST \u002Frpc\u002FgetUser 200 in 12ms\n",[630,1617,1618,1621,1624],{"class":632,"line":739},[630,1619,1620],{"class":636},"  ├─",[630,1622,1623],{"class":639}," operation:",[630,1625,1626],{"class":639}," getUser\n",[630,1628,1629,1631,1634,1637,1640,1643],{"class":632,"line":760},[630,1630,1620],{"class":636},[630,1632,1633],{"class":639}," orders:",[630,1635,1636],{"class":639}," count=",[630,1638,1639],{"class":1206},"2",[630,1641,1642],{"class":639}," totalRevenue=",[630,1644,1645],{"class":1206},"6298\n",[630,1647,1648,1650,1653,1656,1659],{"class":632,"line":781},[630,1649,1620],{"class":636},[630,1651,1652],{"class":639}," user:",[630,1654,1655],{"class":639}," id=usr_123",[630,1657,1658],{"class":639}," name=Alice",[630,1660,1661],{"class":639}," plan=pro\n",[630,1663,1664,1667,1670],{"class":632,"line":814},[630,1665,1666],{"class":636},"  └─",[630,1668,1669],{"class":639}," requestId:",[630,1671,1672],{"class":639}," 4a8ff3a8-...\n",[608,1674,1676],{"id":1675},"uselogger","useLogger()",[511,1678,1679,1680,1682],{},"Use ",[514,1681,1676],{}," to access the request-scoped logger from anywhere in the call stack without passing the context through your service layer:",[620,1684,1687],{"className":702,"code":1685,"filename":1686,"language":705,"meta":626,"style":626},"import { useLogger } from 'evlog\u002Forpc'\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","server\u002Fservices\u002Fuser.ts",[514,1688,1689,1708,1712,1736,1750,1777,1781,1803,1849,1853,1860],{"__ignoreMap":626},[630,1690,1691,1693,1695,1698,1700,1702,1704,1706],{"class":632,"line":633},[630,1692,713],{"class":712},[630,1694,717],{"class":716},[630,1696,1697],{"class":720}," useLogger",[630,1699,724],{"class":716},[630,1701,727],{"class":712},[630,1703,730],{"class":716},[630,1705,516],{"class":639},[630,1707,736],{"class":716},[630,1709,1710],{"class":632,"line":739},[630,1711,818],{"emptyLinePlaceholder":817},[630,1713,1714,1716,1718,1720,1723,1725,1727,1729,1732,1734],{"class":632,"line":760},[630,1715,1081],{"class":712},[630,1717,1087],{"class":879},[630,1719,1090],{"class":879},[630,1721,1722],{"class":824}," findUser",[630,1724,828],{"class":716},[630,1726,1377],{"class":959},[630,1728,841],{"class":716},[630,1730,1731],{"class":636}," string",[630,1733,1034],{"class":716},[630,1735,935],{"class":716},[630,1737,1738,1740,1743,1745,1747],{"class":632,"line":781},[630,1739,1113],{"class":879},[630,1741,1742],{"class":720}," log",[630,1744,1128],{"class":716},[630,1746,1697],{"class":824},[630,1748,1749],{"class":837},"()\n",[630,1751,1752,1755,1757,1759,1761,1763,1765,1767,1769,1771,1773,1775],{"class":632,"line":814},[630,1753,1754],{"class":720},"  log",[630,1756,541],{"class":716},[630,1758,984],{"class":824},[630,1760,828],{"class":837},[630,1762,989],{"class":716},[630,1764,1362],{"class":837},[630,1766,841],{"class":716},[630,1768,717],{"class":716},[630,1770,1298],{"class":720},[630,1772,724],{"class":716},[630,1774,724],{"class":716},[630,1776,868],{"class":837},[630,1778,1779],{"class":632,"line":821},[630,1780,818],{"emptyLinePlaceholder":817},[630,1782,1783,1785,1787,1789,1791,1793,1795,1797,1799,1801],{"class":632,"line":834},[630,1784,1113],{"class":879},[630,1786,1362],{"class":720},[630,1788,1128],{"class":716},[630,1790,1131],{"class":712},[630,1792,1401],{"class":720},[630,1794,541],{"class":716},[630,1796,1406],{"class":824},[630,1798,828],{"class":837},[630,1800,1377],{"class":720},[630,1802,868],{"class":837},[630,1804,1805,1807,1809,1811,1813,1815,1817,1819,1821,1823,1825,1827,1829,1831,1833,1835,1837,1839,1841,1843,1845,1847],{"class":632,"line":862},[630,1806,1754],{"class":720},[630,1808,541],{"class":716},[630,1810,984],{"class":824},[630,1812,828],{"class":837},[630,1814,989],{"class":716},[630,1816,1362],{"class":837},[630,1818,841],{"class":716},[630,1820,717],{"class":716},[630,1822,1441],{"class":837},[630,1824,841],{"class":716},[630,1826,1362],{"class":720},[630,1828,541],{"class":716},[630,1830,1450],{"class":720},[630,1832,790],{"class":716},[630,1834,1455],{"class":837},[630,1836,841],{"class":716},[630,1838,1362],{"class":720},[630,1840,541],{"class":716},[630,1842,1464],{"class":720},[630,1844,724],{"class":716},[630,1846,724],{"class":716},[630,1848,868],{"class":837},[630,1850,1851],{"class":632,"line":871},[630,1852,818],{"emptyLinePlaceholder":817},[630,1854,1855,1857],{"class":632,"line":876},[630,1856,1169],{"class":712},[630,1858,1859],{"class":720}," user\n",[630,1861,1862],{"class":632,"line":920},[630,1863,1043],{"class":716},[620,1865,1867],{"className":702,"code":1866,"filename":704,"language":705,"meta":626,"style":626},"import { findUser } from '.\u002Fservices\u002Fuser'\n\nconst getUser = base\n  .input(z.object({ id: z.string() }))\n  .handler(async ({ input }) => findUser(input.id))\n",[514,1868,1869,1888,1892,1902,1934],{"__ignoreMap":626},[630,1870,1871,1873,1875,1877,1879,1881,1883,1886],{"class":632,"line":633},[630,1872,713],{"class":712},[630,1874,717],{"class":716},[630,1876,1722],{"class":720},[630,1878,724],{"class":716},[630,1880,727],{"class":712},[630,1882,730],{"class":716},[630,1884,1885],{"class":639},".\u002Fservices\u002Fuser",[630,1887,736],{"class":716},[630,1889,1890],{"class":632,"line":739},[630,1891,818],{"emptyLinePlaceholder":817},[630,1893,1894,1896,1898,1900],{"class":632,"line":760},[630,1895,880],{"class":879},[630,1897,1270],{"class":720},[630,1899,886],{"class":716},[630,1901,1275],{"class":720},[630,1903,1904,1906,1908,1910,1912,1914,1916,1918,1920,1922,1924,1926,1928,1930,1932],{"class":632,"line":781},[630,1905,1280],{"class":716},[630,1907,1283],{"class":824},[630,1909,1286],{"class":720},[630,1911,541],{"class":716},[630,1913,1291],{"class":824},[630,1915,828],{"class":720},[630,1917,989],{"class":716},[630,1919,1298],{"class":837},[630,1921,841],{"class":716},[630,1923,1303],{"class":720},[630,1925,541],{"class":716},[630,1927,1308],{"class":824},[630,1929,1311],{"class":720},[630,1931,865],{"class":716},[630,1933,1316],{"class":720},[630,1935,1936,1938,1940,1942,1944,1946,1948,1950,1952,1954,1957,1959],{"class":632,"line":814},[630,1937,1280],{"class":716},[630,1939,951],{"class":824},[630,1941,828],{"class":720},[630,1943,1327],{"class":879},[630,1945,1330],{"class":716},[630,1947,1333],{"class":959},[630,1949,963],{"class":716},[630,1951,966],{"class":879},[630,1953,1722],{"class":824},[630,1955,1956],{"class":720},"(input",[630,1958,541],{"class":716},[630,1960,1961],{"class":720},"id))\n",[511,1963,1964,1965,1967,1968,1970,1971,1973,1974,1977],{},"Both ",[514,1966,536],{}," and ",[514,1969,1676],{}," return the same logger instance. ",[514,1972,1676],{}," uses ",[514,1975,1976],{},"AsyncLocalStorage"," to propagate the logger across async boundaries.",[608,1979,1981],{"id":1980},"error-handling","Error Handling",[511,1983,1679,1984,1987,1988,525,1991,1994,1995,1998,1999,2001,2002,2005,2006,525,2008,525,2011,2014],{},[514,1985,1986],{},"createError"," for structured errors with ",[514,1989,1990],{},"why",[514,1992,1993],{},"fix",", and ",[514,1996,1997],{},"link"," fields. The ",[514,2000,532],{}," middleware catches the throw, records it on the wide event, and bridges it to an ",[514,2003,2004],{},"ORPCError"," so the wire response carries your ",[514,2007,514],{},[514,2009,2010],{},"status",[514,2012,2013],{},"message",", and the human-guidance fields:",[620,2016,2018],{"className":702,"code":2017,"filename":704,"language":705,"meta":626,"style":626},"import { createError } from 'evlog'\n\nconst checkout = base\n  .handler(({ context }) => {\n    context.log.set({ cart: { items: 3, total: 9999 } })\n\n    throw createError({\n      message: 'Payment failed',\n      code: 'PAYMENT_DECLINED',\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",[514,2019,2020,2039,2043,2054,2072,2119,2123,2134,2150,2166,2178,2194,2210,2226,2233],{"__ignoreMap":626},[630,2021,2022,2024,2026,2029,2031,2033,2035,2037],{"class":632,"line":633},[630,2023,713],{"class":712},[630,2025,717],{"class":716},[630,2027,2028],{"class":720}," createError",[630,2030,724],{"class":716},[630,2032,727],{"class":712},[630,2034,730],{"class":716},[630,2036,776],{"class":639},[630,2038,736],{"class":716},[630,2040,2041],{"class":632,"line":739},[630,2042,818],{"emptyLinePlaceholder":817},[630,2044,2045,2047,2050,2052],{"class":632,"line":760},[630,2046,880],{"class":879},[630,2048,2049],{"class":720}," checkout ",[630,2051,886],{"class":716},[630,2053,1275],{"class":720},[630,2055,2056,2058,2060,2062,2064,2066,2068,2070],{"class":632,"line":781},[630,2057,1280],{"class":716},[630,2059,951],{"class":824},[630,2061,828],{"class":720},[630,2063,956],{"class":716},[630,2065,960],{"class":959},[630,2067,963],{"class":716},[630,2069,966],{"class":879},[630,2071,935],{"class":716},[630,2073,2074,2076,2078,2080,2082,2084,2086,2088,2091,2093,2095,2098,2100,2103,2105,2108,2110,2113,2115,2117],{"class":632,"line":814},[630,2075,974],{"class":720},[630,2077,541],{"class":716},[630,2079,979],{"class":720},[630,2081,541],{"class":716},[630,2083,984],{"class":824},[630,2085,828],{"class":837},[630,2087,989],{"class":716},[630,2089,2090],{"class":837}," cart",[630,2092,841],{"class":716},[630,2094,717],{"class":716},[630,2096,2097],{"class":837}," items",[630,2099,841],{"class":716},[630,2101,2102],{"class":1206}," 3",[630,2104,790],{"class":716},[630,2106,2107],{"class":837}," total",[630,2109,841],{"class":716},[630,2111,2112],{"class":1206}," 9999",[630,2114,724],{"class":716},[630,2116,724],{"class":716},[630,2118,868],{"class":837},[630,2120,2121],{"class":632,"line":821},[630,2122,818],{"emptyLinePlaceholder":817},[630,2124,2125,2128,2130,2132],{"class":632,"line":834},[630,2126,2127],{"class":712},"    throw",[630,2129,2028],{"class":824},[630,2131,828],{"class":837},[630,2133,831],{"class":716},[630,2135,2136,2139,2141,2143,2146,2148],{"class":632,"line":862},[630,2137,2138],{"class":837},"      message",[630,2140,841],{"class":716},[630,2142,730],{"class":716},[630,2144,2145],{"class":639},"Payment failed",[630,2147,856],{"class":716},[630,2149,1037],{"class":716},[630,2151,2152,2155,2157,2159,2162,2164],{"class":632,"line":871},[630,2153,2154],{"class":837},"      code",[630,2156,841],{"class":716},[630,2158,730],{"class":716},[630,2160,2161],{"class":639},"PAYMENT_DECLINED",[630,2163,856],{"class":716},[630,2165,1037],{"class":716},[630,2167,2168,2171,2173,2176],{"class":632,"line":876},[630,2169,2170],{"class":837},"      status",[630,2172,841],{"class":716},[630,2174,2175],{"class":1206}," 402",[630,2177,1037],{"class":716},[630,2179,2180,2183,2185,2187,2190,2192],{"class":632,"line":920},[630,2181,2182],{"class":837},"      why",[630,2184,841],{"class":716},[630,2186,730],{"class":716},[630,2188,2189],{"class":639},"Card declined by issuer",[630,2191,856],{"class":716},[630,2193,1037],{"class":716},[630,2195,2196,2199,2201,2203,2206,2208],{"class":632,"line":925},[630,2197,2198],{"class":837},"      fix",[630,2200,841],{"class":716},[630,2202,730],{"class":716},[630,2204,2205],{"class":639},"Try a different payment method",[630,2207,856],{"class":716},[630,2209,1037],{"class":716},[630,2211,2212,2215,2217,2219,2222,2224],{"class":632,"line":938},[630,2213,2214],{"class":837},"      link",[630,2216,841],{"class":716},[630,2218,730],{"class":716},[630,2220,2221],{"class":639},"https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined",[630,2223,856],{"class":716},[630,2225,1037],{"class":716},[630,2227,2228,2231],{"class":632,"line":971},[630,2229,2230],{"class":716},"    }",[630,2232,868],{"class":837},[630,2234,2235,2237],{"class":632,"line":1008},[630,2236,1031],{"class":716},[630,2238,868],{"class":720},[511,2240,2241],{},"The error is captured and logged with both the custom context and structured error fields:",[620,2243,2245],{"className":622,"code":2244,"filename":1602,"language":625,"meta":626,"style":626},"14:58:20 ERROR [my-rpc] POST \u002Frpc\u002Fcheckout 402 in 3ms\n  ├─ operation: checkout\n  ├─ error: name=EvlogError code=PAYMENT_DECLINED status=402 message=Payment failed\n  ├─ cart: items=3 total=9999\n  └─ requestId: 880a50ac-...\n",[514,2246,2247,2258,2267,2292,2311],{"__ignoreMap":626},[630,2248,2249,2252,2255],{"class":632,"line":633},[630,2250,2251],{"class":636},"14:58:20",[630,2253,2254],{"class":639}," ERROR",[630,2256,2257],{"class":720}," [my-rpc] POST \u002Frpc\u002Fcheckout 402 in 3ms\n",[630,2259,2260,2262,2264],{"class":632,"line":739},[630,2261,1620],{"class":636},[630,2263,1623],{"class":639},[630,2265,2266],{"class":639}," checkout\n",[630,2268,2269,2271,2274,2277,2280,2283,2286,2289],{"class":632,"line":760},[630,2270,1620],{"class":636},[630,2272,2273],{"class":639}," error:",[630,2275,2276],{"class":639}," name=EvlogError",[630,2278,2279],{"class":639}," code=PAYMENT_DECLINED",[630,2281,2282],{"class":639}," status=",[630,2284,2285],{"class":1206},"402",[630,2287,2288],{"class":639}," message=Payment",[630,2290,2291],{"class":639}," failed\n",[630,2293,2294,2296,2299,2302,2305,2308],{"class":632,"line":781},[630,2295,1620],{"class":636},[630,2297,2298],{"class":639}," cart:",[630,2300,2301],{"class":639}," items=",[630,2303,2304],{"class":1206},"3",[630,2306,2307],{"class":639}," total=",[630,2309,2310],{"class":1206},"9999\n",[630,2312,2313,2315,2317],{"class":632,"line":814},[630,2314,1666],{"class":636},[630,2316,1669],{"class":639},[630,2318,2319],{"class":639}," 880a50ac-...\n",[511,2321,2322],{},"Wire response returned to the client:",[620,2324,2329],{"className":2325,"code":2326,"filename":2327,"language":2328,"meta":626,"style":626},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"defined\": false,\n  \"code\": \"PAYMENT_DECLINED\",\n  \"status\": 402,\n  \"message\": \"Payment failed\",\n  \"data\": {\n    \"why\": \"Card declined by issuer\",\n    \"fix\": \"Try a different payment method\",\n    \"link\": \"https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined\"\n  }\n}\n","HTTP 402","json",[514,2330,2331,2335,2351,2370,2384,2402,2415,2434,2452,2469,2474],{"__ignoreMap":626},[630,2332,2333],{"class":632,"line":633},[630,2334,831],{"class":716},[630,2336,2337,2340,2343,2346,2348],{"class":632,"line":739},[630,2338,2339],{"class":716},"  \"",[630,2341,2342],{"class":879},"defined",[630,2344,2345],{"class":716},"\"",[630,2347,841],{"class":716},[630,2349,2350],{"class":716}," false,\n",[630,2352,2353,2355,2357,2359,2361,2364,2366,2368],{"class":632,"line":760},[630,2354,2339],{"class":716},[630,2356,514],{"class":879},[630,2358,2345],{"class":716},[630,2360,841],{"class":716},[630,2362,2363],{"class":716}," \"",[630,2365,2161],{"class":639},[630,2367,2345],{"class":716},[630,2369,1037],{"class":716},[630,2371,2372,2374,2376,2378,2380,2382],{"class":632,"line":781},[630,2373,2339],{"class":716},[630,2375,2010],{"class":879},[630,2377,2345],{"class":716},[630,2379,841],{"class":716},[630,2381,2175],{"class":1206},[630,2383,1037],{"class":716},[630,2385,2386,2388,2390,2392,2394,2396,2398,2400],{"class":632,"line":814},[630,2387,2339],{"class":716},[630,2389,2013],{"class":879},[630,2391,2345],{"class":716},[630,2393,841],{"class":716},[630,2395,2363],{"class":716},[630,2397,2145],{"class":639},[630,2399,2345],{"class":716},[630,2401,1037],{"class":716},[630,2403,2404,2406,2409,2411,2413],{"class":632,"line":821},[630,2405,2339],{"class":716},[630,2407,2408],{"class":879},"data",[630,2410,2345],{"class":716},[630,2412,841],{"class":716},[630,2414,935],{"class":716},[630,2416,2417,2420,2422,2424,2426,2428,2430,2432],{"class":632,"line":834},[630,2418,2419],{"class":716},"    \"",[630,2421,1990],{"class":636},[630,2423,2345],{"class":716},[630,2425,841],{"class":716},[630,2427,2363],{"class":716},[630,2429,2189],{"class":639},[630,2431,2345],{"class":716},[630,2433,1037],{"class":716},[630,2435,2436,2438,2440,2442,2444,2446,2448,2450],{"class":632,"line":862},[630,2437,2419],{"class":716},[630,2439,1993],{"class":636},[630,2441,2345],{"class":716},[630,2443,841],{"class":716},[630,2445,2363],{"class":716},[630,2447,2205],{"class":639},[630,2449,2345],{"class":716},[630,2451,1037],{"class":716},[630,2453,2454,2456,2458,2460,2462,2464,2466],{"class":632,"line":871},[630,2455,2419],{"class":716},[630,2457,1997],{"class":636},[630,2459,2345],{"class":716},[630,2461,841],{"class":716},[630,2463,2363],{"class":716},[630,2465,2221],{"class":639},[630,2467,2468],{"class":716},"\"\n",[630,2470,2471],{"class":632,"line":876},[630,2472,2473],{"class":716},"  }\n",[630,2475,2476],{"class":632,"line":920},[630,2477,1043],{"class":716},[543,2479,2480,2481,2484,2485,2488,2489,2492,2493,2495,2496,2495,2498,2500,2501,2503,2504,2506,2507,2513],{"color":545,"icon":13},"oRPC's error envelope is ",[514,2482,2483],{},"{ defined, code, status, message, data }"," — clients deserialize errors as a typed union via ",[514,2486,2487],{},"safe()"," from ",[514,2490,2491],{},"@orpc\u002Fclient",". evlog follows the protocol, so ",[514,2494,1990],{},"\u002F",[514,2497,1993],{},[514,2499,1997],{}," live under ",[514,2502,2408],{}," instead of at the response root. The authoring API (",[514,2505,1986],{}," \u002F ",[552,2508,2510],{"href":2509},"\u002Flearn\u002Fstructured-errors#error-catalogs",[514,2511,2512],{},"defineErrorCatalog",") is identical to the rest of evlog.",[608,2515,480],{"id":2516},"configuration",[511,2518,2519,2520,2523,2524,2526],{},"See the ",[552,2521,2522],{"href":481},"Configuration reference"," for all available options (",[514,2525,825],{},", middleware options, sampling, silent mode, etc.).",[608,2528,2530],{"id":2529},"drain-enrichers","Drain & Enrichers",[511,2532,2533,2534,2537],{},"Configure drain adapters and enrichers directly in the ",[514,2535,2536],{},"withEvlog()"," options:",[620,2539,2541],{"className":702,"code":2540,"filename":704,"language":705,"meta":626,"style":626},"import { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createUserAgentEnricher } from 'evlog\u002Fenrichers'\n\nconst userAgent = createUserAgentEnricher()\n\nconst handler = withEvlog(new RPCHandler(router), {\n  drain: createAxiomDrain(),\n  enrich: (ctx) => {\n    userAgent(ctx)\n    ctx.event.region = process.env.FLY_REGION\n  },\n})\n",[514,2542,2543,2563,2583,2587,2600,2604,2627,2640,2659,2670,2700,2705],{"__ignoreMap":626},[630,2544,2545,2547,2549,2552,2554,2556,2558,2561],{"class":632,"line":633},[630,2546,713],{"class":712},[630,2548,717],{"class":716},[630,2550,2551],{"class":720}," createAxiomDrain",[630,2553,724],{"class":716},[630,2555,727],{"class":712},[630,2557,730],{"class":716},[630,2559,2560],{"class":639},"evlog\u002Faxiom",[630,2562,736],{"class":716},[630,2564,2565,2567,2569,2572,2574,2576,2578,2581],{"class":632,"line":739},[630,2566,713],{"class":712},[630,2568,717],{"class":716},[630,2570,2571],{"class":720}," createUserAgentEnricher",[630,2573,724],{"class":716},[630,2575,727],{"class":712},[630,2577,730],{"class":716},[630,2579,2580],{"class":639},"evlog\u002Fenrichers",[630,2582,736],{"class":716},[630,2584,2585],{"class":632,"line":760},[630,2586,818],{"emptyLinePlaceholder":817},[630,2588,2589,2591,2594,2596,2598],{"class":632,"line":781},[630,2590,880],{"class":879},[630,2592,2593],{"class":720}," userAgent ",[630,2595,886],{"class":716},[630,2597,2571],{"class":824},[630,2599,1749],{"class":720},[630,2601,2602],{"class":632,"line":814},[630,2603,818],{"emptyLinePlaceholder":817},[630,2605,2606,2608,2610,2612,2614,2616,2618,2620,2623,2625],{"class":632,"line":821},[630,2607,880],{"class":879},[630,2609,1056],{"class":720},[630,2611,886],{"class":716},[630,2613,793],{"class":824},[630,2615,828],{"class":720},[630,2617,1065],{"class":716},[630,2619,746],{"class":824},[630,2621,2622],{"class":720},"(router)",[630,2624,790],{"class":716},[630,2626,935],{"class":716},[630,2628,2629,2632,2634,2636,2638],{"class":632,"line":834},[630,2630,2631],{"class":837},"  drain",[630,2633,841],{"class":716},[630,2635,2551],{"class":824},[630,2637,905],{"class":720},[630,2639,1037],{"class":716},[630,2641,2642,2645,2647,2650,2653,2655,2657],{"class":632,"line":862},[630,2643,2644],{"class":824},"  enrich",[630,2646,841],{"class":716},[630,2648,2649],{"class":716}," (",[630,2651,2652],{"class":959},"ctx",[630,2654,1034],{"class":716},[630,2656,966],{"class":879},[630,2658,935],{"class":716},[630,2660,2661,2664,2666,2668],{"class":632,"line":871},[630,2662,2663],{"class":824},"    userAgent",[630,2665,828],{"class":837},[630,2667,2652],{"class":720},[630,2669,868],{"class":837},[630,2671,2672,2675,2677,2680,2682,2685,2687,2690,2692,2695,2697],{"class":632,"line":876},[630,2673,2674],{"class":720},"    ctx",[630,2676,541],{"class":716},[630,2678,2679],{"class":720},"event",[630,2681,541],{"class":716},[630,2683,2684],{"class":720},"region",[630,2686,1128],{"class":716},[630,2688,2689],{"class":720}," process",[630,2691,541],{"class":716},[630,2693,2694],{"class":720},"env",[630,2696,541],{"class":716},[630,2698,2699],{"class":720},"FLY_REGION\n",[630,2701,2702],{"class":632,"line":920},[630,2703,2704],{"class":716},"  },\n",[630,2706,2707,2709],{"class":632,"line":925},[630,2708,865],{"class":716},[630,2710,868],{"class":720},[612,2712,2714],{"id":2713},"pipeline-batching-retry","Pipeline (Batching & Retry)",[511,2716,2717,2718,2721],{},"For production, wrap your adapter with ",[514,2719,2720],{},"createDrainPipeline"," to batch events and retry on failure:",[620,2723,2725],{"className":702,"code":2724,"filename":704,"language":705,"meta":626,"style":626},"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\nconst handler = withEvlog(new RPCHandler(router), { drain })\n",[514,2726,2727,2748,2766,2786,2790,2812,2841,2859,2865,2884,2888],{"__ignoreMap":626},[630,2728,2729,2731,2733,2735,2738,2740,2742,2744,2746],{"class":632,"line":633},[630,2730,713],{"class":712},[630,2732,798],{"class":712},[630,2734,717],{"class":716},[630,2736,2737],{"class":720}," DrainContext",[630,2739,724],{"class":716},[630,2741,727],{"class":712},[630,2743,730],{"class":716},[630,2745,776],{"class":639},[630,2747,736],{"class":716},[630,2749,2750,2752,2754,2756,2758,2760,2762,2764],{"class":632,"line":739},[630,2751,713],{"class":712},[630,2753,717],{"class":716},[630,2755,2551],{"class":720},[630,2757,724],{"class":716},[630,2759,727],{"class":712},[630,2761,730],{"class":716},[630,2763,2560],{"class":639},[630,2765,736],{"class":716},[630,2767,2768,2770,2772,2775,2777,2779,2781,2784],{"class":632,"line":760},[630,2769,713],{"class":712},[630,2771,717],{"class":716},[630,2773,2774],{"class":720}," createDrainPipeline",[630,2776,724],{"class":716},[630,2778,727],{"class":712},[630,2780,730],{"class":716},[630,2782,2783],{"class":639},"evlog\u002Fpipeline",[630,2785,736],{"class":716},[630,2787,2788],{"class":632,"line":781},[630,2789,818],{"emptyLinePlaceholder":817},[630,2791,2792,2794,2797,2799,2801,2803,2806,2808,2810],{"class":632,"line":814},[630,2793,880],{"class":879},[630,2795,2796],{"class":720}," pipeline ",[630,2798,886],{"class":716},[630,2800,2774],{"class":824},[630,2802,896],{"class":716},[630,2804,2805],{"class":636},"DrainContext",[630,2807,902],{"class":716},[630,2809,828],{"class":720},[630,2811,831],{"class":716},[630,2813,2814,2817,2819,2821,2824,2826,2829,2831,2834,2836,2839],{"class":632,"line":821},[630,2815,2816],{"class":837},"  batch",[630,2818,841],{"class":716},[630,2820,717],{"class":716},[630,2822,2823],{"class":837}," size",[630,2825,841],{"class":716},[630,2827,2828],{"class":1206}," 50",[630,2830,790],{"class":716},[630,2832,2833],{"class":837}," intervalMs",[630,2835,841],{"class":716},[630,2837,2838],{"class":1206}," 5000",[630,2840,859],{"class":716},[630,2842,2843,2846,2848,2850,2853,2855,2857],{"class":632,"line":834},[630,2844,2845],{"class":837},"  retry",[630,2847,841],{"class":716},[630,2849,717],{"class":716},[630,2851,2852],{"class":837}," maxAttempts",[630,2854,841],{"class":716},[630,2856,2102],{"class":1206},[630,2858,859],{"class":716},[630,2860,2861,2863],{"class":632,"line":862},[630,2862,865],{"class":716},[630,2864,868],{"class":720},[630,2866,2867,2869,2872,2874,2877,2879,2882],{"class":632,"line":871},[630,2868,880],{"class":879},[630,2870,2871],{"class":720}," drain ",[630,2873,886],{"class":716},[630,2875,2876],{"class":824}," pipeline",[630,2878,828],{"class":720},[630,2880,2881],{"class":824},"createAxiomDrain",[630,2883,917],{"class":720},[630,2885,2886],{"class":632,"line":876},[630,2887,818],{"emptyLinePlaceholder":817},[630,2889,2890,2892,2894,2896,2898,2900,2902,2904,2906,2908,2910,2912,2914],{"class":632,"line":920},[630,2891,880],{"class":879},[630,2893,1056],{"class":720},[630,2895,886],{"class":716},[630,2897,793],{"class":824},[630,2899,828],{"class":720},[630,2901,1065],{"class":716},[630,2903,746],{"class":824},[630,2905,2622],{"class":720},[630,2907,790],{"class":716},[630,2909,717],{"class":716},[630,2911,2871],{"class":720},[630,2913,865],{"class":716},[630,2915,868],{"class":720},[543,2917,2918,2919,2922,2923,2926],{"color":545,"icon":13},"Call ",[514,2920,2921],{},"drain.flush()"," on server shutdown to ensure all buffered events are sent. See the ",[552,2924,2925],{"href":472},"Pipeline docs"," for all options.",[608,2928,2930],{"id":2929},"tail-sampling","Tail Sampling",[511,2932,1679,2933,2936],{},[514,2934,2935],{},"keep"," to force-retain specific events regardless of head sampling:",[620,2938,2940],{"className":702,"code":2939,"filename":704,"language":705,"meta":626,"style":626},"const handler = withEvlog(new RPCHandler(router), {\n  drain: createAxiomDrain(),\n  keep: (ctx) => {\n    if (ctx.duration && ctx.duration > 2000) ctx.shouldKeep = true\n  },\n})\n",[514,2941,2942,2964,2976,2993,3037,3041],{"__ignoreMap":626},[630,2943,2944,2946,2948,2950,2952,2954,2956,2958,2960,2962],{"class":632,"line":633},[630,2945,880],{"class":879},[630,2947,1056],{"class":720},[630,2949,886],{"class":716},[630,2951,793],{"class":824},[630,2953,828],{"class":720},[630,2955,1065],{"class":716},[630,2957,746],{"class":824},[630,2959,2622],{"class":720},[630,2961,790],{"class":716},[630,2963,935],{"class":716},[630,2965,2966,2968,2970,2972,2974],{"class":632,"line":739},[630,2967,2631],{"class":837},[630,2969,841],{"class":716},[630,2971,2551],{"class":824},[630,2973,905],{"class":720},[630,2975,1037],{"class":716},[630,2977,2978,2981,2983,2985,2987,2989,2991],{"class":632,"line":760},[630,2979,2980],{"class":824},"  keep",[630,2982,841],{"class":716},[630,2984,2649],{"class":716},[630,2986,2652],{"class":959},[630,2988,1034],{"class":716},[630,2990,966],{"class":879},[630,2992,935],{"class":716},[630,2994,2995,2998,3000,3002,3004,3007,3010,3013,3015,3017,3020,3023,3025,3027,3029,3032,3034],{"class":632,"line":781},[630,2996,2997],{"class":712},"    if",[630,2999,2649],{"class":837},[630,3001,2652],{"class":720},[630,3003,541],{"class":716},[630,3005,3006],{"class":720},"duration",[630,3008,3009],{"class":716}," &&",[630,3011,3012],{"class":720}," ctx",[630,3014,541],{"class":716},[630,3016,3006],{"class":720},[630,3018,3019],{"class":716}," >",[630,3021,3022],{"class":1206}," 2000",[630,3024,1554],{"class":837},[630,3026,2652],{"class":720},[630,3028,541],{"class":716},[630,3030,3031],{"class":720},"shouldKeep",[630,3033,1128],{"class":716},[630,3035,3036],{"class":1021}," true\n",[630,3038,3039],{"class":632,"line":814},[630,3040,2704],{"class":716},[630,3042,3043,3045],{"class":632,"line":821},[630,3044,865],{"class":716},[630,3046,868],{"class":720},[608,3048,3050],{"id":3049},"route-filtering","Route Filtering",[511,3052,3053,2506,3056,3059],{},[514,3054,3055],{},"include",[514,3057,3058],{},"exclude"," match against the HTTP path (the request URL), not the procedure name:",[620,3061,3063],{"className":702,"code":3062,"filename":704,"language":705,"meta":626,"style":626},"const handler = withEvlog(new RPCHandler(router), {\n  include: ['\u002Frpc\u002F**'],\n  exclude: ['\u002Frpc\u002F_internal\u002F**', '\u002Fhealth'],\n  routes: {\n    '\u002Frpc\u002Fauth\u002F**': { service: 'auth-service' },\n    '\u002Frpc\u002Fpayment\u002F**': { service: 'payment-service' },\n  },\n})\n",[514,3064,3065,3087,3109,3138,3147,3174,3200,3204],{"__ignoreMap":626},[630,3066,3067,3069,3071,3073,3075,3077,3079,3081,3083,3085],{"class":632,"line":633},[630,3068,880],{"class":879},[630,3070,1056],{"class":720},[630,3072,886],{"class":716},[630,3074,793],{"class":824},[630,3076,828],{"class":720},[630,3078,1065],{"class":716},[630,3080,746],{"class":824},[630,3082,2622],{"class":720},[630,3084,790],{"class":716},[630,3086,935],{"class":716},[630,3088,3089,3092,3094,3097,3099,3102,3104,3107],{"class":632,"line":739},[630,3090,3091],{"class":837},"  include",[630,3093,841],{"class":716},[630,3095,3096],{"class":720}," [",[630,3098,856],{"class":716},[630,3100,3101],{"class":639},"\u002Frpc\u002F**",[630,3103,856],{"class":716},[630,3105,3106],{"class":720},"]",[630,3108,1037],{"class":716},[630,3110,3111,3114,3116,3118,3120,3123,3125,3127,3129,3132,3134,3136],{"class":632,"line":760},[630,3112,3113],{"class":837},"  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'",[630,3153,3154],{"class":837},"\u002Frpc\u002Fauth\u002F**",[630,3156,856],{"class":716},[630,3158,841],{"class":716},[630,3160,717],{"class":716},[630,3162,846],{"class":837},[630,3164,841],{"class":716},[630,3166,730],{"class":716},[630,3168,3169],{"class":639},"auth-service",[630,3171,856],{"class":716},[630,3173,859],{"class":716},[630,3175,3176,3178,3181,3183,3185,3187,3189,3191,3193,3196,3198],{"class":632,"line":821},[630,3177,3151],{"class":716},[630,3179,3180],{"class":837},"\u002Frpc\u002Fpayment\u002F**",[630,3182,856],{"class":716},[630,3184,841],{"class":716},[630,3186,717],{"class":716},[630,3188,846],{"class":837},[630,3190,841],{"class":716},[630,3192,730],{"class":716},[630,3194,3195],{"class":639},"payment-service",[630,3197,856],{"class":716},[630,3199,859],{"class":716},[630,3201,3202],{"class":632,"line":834},[630,3203,2704],{"class":716},[630,3205,3206,3208],{"class":632,"line":862},[630,3207,865],{"class":716},[630,3209,868],{"class":720},[511,3211,3212,3213,3215],{},"When 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