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",[591,592,593],"code",{},"evlog\u002Fhono"," middleware auto-creates a request-scoped logger accessible via ",[591,596,597],{},"c.get('log')",", or ",[591,600,601],{},"useLogger()"," anywhere deeper in the call stack, and emits a wide event when the response completes.",[604,605,608,611,642],"prompt",{":actions":606,"description":607,"icon":278},"[\"copy\",\"cursor\",\"claude\"]","Set up evlog in my Hono app",[587,609,610],{},"Set up evlog in my Hono app.",[612,613,614,618,621,624,627,633,636,639],"ul",{},[615,616,617],"li",{},"Install evlog: pnpm add evlog",[615,619,620],{},"Call initLogger({ env: { service: 'my-api' } }) at startup",[615,622,623],{},"Alternatively, use evlog\u002Fvite plugin in vite.config.ts for auto-init (replaces initLogger)",[615,625,626],{},"Import evlog middleware and EvlogVariables type from 'evlog\u002Fhono'",[615,628,629,630],{},"Add app.use(evlog()) and type the app with Hono",[631,632],"evlog-variables",{},[615,634,635],{},"Access the logger via c.get('log') in route handlers, or useLogger() from 'evlog\u002Fhono' in nested functions",[615,637,638],{},"Use log.set() to accumulate context throughout the request",[615,640,641],{},"Optionally pass drain, enrich, include, and keep options to evlog()",[587,643,644,645,651,652],{},"Docs: ",[646,647,648],"a",{"href":648,"rel":649},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fframeworks\u002Fhono",[650],"nofollow","\nAdapters: ",[646,653,654],{"href":654,"rel":655},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fadapters\u002Foverview",[650],[657,658,25],"h2",{"id":659},"quick-start",[661,662,664],"h3",{"id":663},"_1-install","1. Install",[666,667,668,699,717,735],"code-group",{},[669,670,676],"pre",{"className":671,"code":672,"filename":673,"language":674,"meta":675,"style":675},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add evlog hono @hono\u002Fnode-server\n","pnpm","bash","",[591,677,678],{"__ignoreMap":675},[679,680,683,686,690,693,696],"span",{"class":681,"line":682},"line",1,[679,684,673],{"class":685},"sBMFI",[679,687,689],{"class":688},"sfazB"," add",[679,691,692],{"class":688}," evlog",[679,694,695],{"class":688}," hono",[679,697,698],{"class":688}," @hono\u002Fnode-server\n",[669,700,703],{"className":671,"code":701,"filename":702,"language":674,"meta":675,"style":675},"bun add evlog hono @hono\u002Fnode-server\n","bun",[591,704,705],{"__ignoreMap":675},[679,706,707,709,711,713,715],{"class":681,"line":682},[679,708,702],{"class":685},[679,710,689],{"class":688},[679,712,692],{"class":688},[679,714,695],{"class":688},[679,716,698],{"class":688},[669,718,721],{"className":671,"code":719,"filename":720,"language":674,"meta":675,"style":675},"yarn add evlog hono @hono\u002Fnode-server\n","yarn",[591,722,723],{"__ignoreMap":675},[679,724,725,727,729,731,733],{"class":681,"line":682},[679,726,720],{"class":685},[679,728,689],{"class":688},[679,730,692],{"class":688},[679,732,695],{"class":688},[679,734,698],{"class":688},[669,736,739],{"className":671,"code":737,"filename":738,"language":674,"meta":675,"style":675},"npm install evlog hono @hono\u002Fnode-server\n","npm",[591,740,741],{"__ignoreMap":675},[679,742,743,745,748,750,752],{"class":681,"line":682},[679,744,738],{"class":685},[679,746,747],{"class":688}," install",[679,749,692],{"class":688},[679,751,695],{"class":688},[679,753,698],{"class":688},[661,755,757],{"id":756},"_2-initialize-and-register-the-middleware","2. Initialize and register the middleware",[669,759,764],{"className":760,"code":761,"filename":762,"language":763,"meta":675,"style":675},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { serve } from '@hono\u002Fnode-server'\nimport { Hono } from 'hono'\nimport { initLogger } from 'evlog'\nimport { evlog, type EvlogVariables } from 'evlog\u002Fhono'\n\ninitLogger({\n  env: { service: 'my-api' },\n})\n\nconst app = new Hono\u003CEvlogVariables>()\n\napp.use(evlog())\n\napp.get('\u002Fhealth', (c) => {\n  c.get('log').set({ route: 'health' })\n  return c.json({ ok: true })\n})\n\nserve({ fetch: app.fetch, port: 3000 })\n","src\u002Findex.ts","typescript",[591,765,766,795,816,837,865,872,885,913,922,927,957,962,981,986,1023,1070,1101,1108,1113],{"__ignoreMap":675},[679,767,768,772,776,780,783,786,789,792],{"class":681,"line":682},[679,769,771],{"class":770},"s7zQu","import",[679,773,775],{"class":774},"sMK4o"," 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One request = one wide event:",[669,1190,1192],{"className":760,"code":1191,"filename":762,"language":763,"meta":675,"style":675},"app.get('\u002Fusers\u002F:id', async (c) => {\n  const log = c.get('log')\n  const userId = c.req.param('id')\n\n  log.set({ user: { id: userId } })\n\n  const user = await db.findUser(userId)\n  log.set({ user: { name: user.name, plan: user.plan } })\n\n  const orders = await db.findOrders(userId)\n  log.set({ orders: { count: orders.length, totalRevenue: sum(orders) } })\n\n  return c.json({ user, orders 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plan",[679,1388,894],{"class":774},[679,1390,1304],{"class":778},[679,1392,970],{"class":774},[679,1394,1395],{"class":778},"plan",[679,1397,782],{"class":774},[679,1399,782],{"class":774},[679,1401,921],{"class":890},[679,1403,1404],{"class":681,"line":924},[679,1405,871],{"emptyLinePlaceholder":870},[679,1407,1408,1410,1413,1415,1417,1419,1421,1424,1426,1428],{"class":681,"line":929},[679,1409,1230],{"class":932},[679,1411,1412],{"class":778}," orders",[679,1414,1236],{"class":774},[679,1416,1336],{"class":770},[679,1418,1339],{"class":778},[679,1420,970],{"class":774},[679,1422,1423],{"class":877},"findOrders",[679,1425,881],{"class":890},[679,1427,1349],{"class":778},[679,1429,921],{"class":890},[679,1431,1432,1434,1436,1438,1440,1442,1444,1446,1448,1451,1453,1455,1457,1460,1462,1465,1467,1470,1472,1475,1478,1480,1482],{"class":681,"line":959},[679,1433,1293],{"class":778},[679,1435,970],{"class":774},[679,1437,1048],{"class":877},[679,1439,881],{"class":890},[679,1441,1053],{"class":774},[679,1443,1412],{"class":890},[679,1445,894],{"class":774},[679,1447,775],{"class":774},[679,1449,1450],{"class":890}," count",[679,1452,894],{"class":774},[679,1454,1412],{"class":778},[679,1456,970],{"class":774},[679,1458,1459],{"class":778},"length",[679,1461,848],{"class":774},[679,1463,1464],{"class":890}," totalRevenue",[679,1466,894],{"class":774},[679,1468,1469],{"class":877}," sum",[679,1471,881],{"class":890},[679,1473,1474],{"class":778},"orders",[679,1476,1477],{"class":890},") ",[679,1479,918],{"class":774},[679,1481,782],{"class":774},[679,1483,921],{"class":890},[679,1485,1486],{"class":681,"line":964},[679,1487,871],{"emptyLinePlaceholder":870},[679,1489,1490,1492,1494,1496,1498,1500,1502,1504,1506,1508,1510],{"class":681,"line":983},[679,1491,1075],{"class":770},[679,1493,1078],{"class":778},[679,1495,970],{"class":774},[679,1497,1083],{"class":877},[679,1499,881],{"class":890},[679,1501,1053],{"class":774},[679,1503,1304],{"class":778},[679,1505,848],{"class":774},[679,1507,1412],{"class":778},[679,1509,782],{"class":774},[679,1511,921],{"class":890},[679,1513,1514,1516],{"class":681,"line":988},[679,1515,918],{"class":774},[679,1517,921],{"class":778},[587,1519,1520],{},"All fields are merged into a single wide event emitted when the request completes:",[669,1522,1525],{"className":671,"code":1523,"filename":1524,"language":674,"meta":675,"style":675},"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",[591,1526,1527,1538,1558,1574],{"__ignoreMap":675},[679,1528,1529,1532,1535],{"class":681,"line":682},[679,1530,1531],{"class":685},"14:58:15",[679,1533,1534],{"class":688}," INFO",[679,1536,1537],{"class":778}," [my-api] GET \u002Fusers\u002Fusr_123 200 in 12ms\n",[679,1539,1540,1543,1546,1549,1552,1555],{"class":681,"line":797},[679,1541,1542],{"class":685},"  ├─",[679,1544,1545],{"class":688}," orders:",[679,1547,1548],{"class":688}," count=",[679,1550,1551],{"class":1145},"2",[679,1553,1554],{"class":688}," totalRevenue=",[679,1556,1557],{"class":1145},"6298\n",[679,1559,1560,1562,1565,1568,1571],{"class":681,"line":818},[679,1561,1542],{"class":685},[679,1563,1564],{"class":688}," user:",[679,1566,1567],{"class":688}," id=usr_123",[679,1569,1570],{"class":688}," name=Alice",[679,1572,1573],{"class":688}," plan=pro\n",[679,1575,1576,1579,1582],{"class":681,"line":839},[679,1577,1578],{"class":685},"  └─",[679,1580,1581],{"class":688}," requestId:",[679,1583,1584],{"class":688}," 4a8ff3a8-...\n",[657,1586,1588],{"id":1587},"accessing-the-logger-deeper-in-the-stack","Accessing the logger deeper in the stack",[587,1590,1591,1593,1594,1596,1597,1599],{},[591,1592,597],{}," is the idiomatic accessor inside a route handler. Once you are a few\nlayers down (a service, a repository), threading ",[591,1595,1013],{}," everywhere gets noisy. ",[591,1598,601],{},"\nresolves the same request logger without it:",[669,1601,1604],{"className":760,"code":1602,"filename":1603,"language":763,"meta":675,"style":675},"import { useLogger } from 'evlog\u002Fhono'\n\nexport async function chargeCard(amount: number) {\n  const log = useLogger()\n  log.set({ payment: { amount } })\n}\n","src\u002Fservices\u002Fpayment.ts",[591,1605,1606,1625,1629,1656,1668,1696],{"__ignoreMap":675},[679,1607,1608,1610,1612,1615,1617,1619,1621,1623],{"class":681,"line":682},[679,1609,771],{"class":770},[679,1611,775],{"class":774},[679,1613,1614],{"class":778}," useLogger",[679,1616,782],{"class":774},[679,1618,785],{"class":770},[679,1620,788],{"class":774},[679,1622,593],{"class":688},[679,1624,794],{"class":774},[679,1626,1627],{"class":681,"line":797},[679,1628,871],{"emptyLinePlaceholder":870},[679,1630,1631,1634,1636,1639,1642,1644,1647,1649,1652,1654],{"class":681,"line":818},[679,1632,1633],{"class":770},"export",[679,1635,1215],{"class":932},[679,1637,1638],{"class":932}," function",[679,1640,1641],{"class":877}," chargeCard",[679,1643,881],{"class":774},[679,1645,1646],{"class":1012},"amount",[679,1648,894],{"class":774},[679,1650,1651],{"class":685}," number",[679,1653,1016],{"class":774},[679,1655,1022],{"class":774},[679,1657,1658,1660,1662,1664,1666],{"class":681,"line":839},[679,1659,1230],{"class":932},[679,1661,1233],{"class":778},[679,1663,1236],{"class":774},[679,1665,1614],{"class":877},[679,1667,956],{"class":890},[679,1669,1670,1672,1674,1676,1678,1680,1683,1685,1687,1690,1692,1694],{"class":681,"line":867},[679,1671,1293],{"class":778},[679,1673,970],{"class":774},[679,1675,1048],{"class":877},[679,1677,881],{"class":890},[679,1679,1053],{"class":774},[679,1681,1682],{"class":890}," payment",[679,1684,894],{"class":774},[679,1686,775],{"class":774},[679,1688,1689],{"class":778}," amount",[679,1691,782],{"class":774},[679,1693,782],{"class":774},[679,1695,921],{"class":890},[679,1697,1698],{"class":681,"line":874},[679,1699,1700],{"class":774},"}\n",[587,1702,1703],{},"Both return the same logger, so pick whichever reads better at the call site.",[1152,1705,1706,1708,1709,1712,1713,1716,1717,1720,1721,1724,1725,1727],{"color":1154,"icon":13},[591,1707,601],{}," is backed by ",[591,1710,1711],{},"AsyncLocalStorage",". On Cloudflare Workers this requires the\n",[591,1714,1715],{},"nodejs_compat"," (or ",[591,1718,1719],{},"nodejs_als",") compatibility flag in ",[591,1722,1723],{},"wrangler.toml",". ",[591,1726,597],{},"\nworks with or without it, so deployments that cannot enable the flag keep using it.",[661,1729,1731],{"id":1730},"background-work","Background work",[587,1733,1734,1739,1740,894],{},[1156,1735,1736],{},[591,1737,1738],{},"log.fork()"," runs work under a forked logger that emits its own wide event, correlated\nto the request via ",[591,1741,1742],{},"_parentRequestId",[669,1744,1746],{"className":760,"code":1745,"filename":762,"language":763,"meta":675,"style":675},"app.post('\u002Fapi\u002Forders', (c) => {\n  c.get('log').fork('send-receipt', async () => {\n    await sendReceipt()\n    useLogger().set({ email: { sent: true } })\n  })\n  return c.json({ ok: true })\n})\n",[591,1747,1748,1778,1821,1831,1867,1874,1898],{"__ignoreMap":675},[679,1749,1750,1752,1754,1757,1759,1761,1764,1766,1768,1770,1772,1774,1776],{"class":681,"line":682},[679,1751,967],{"class":778},[679,1753,970],{"class":774},[679,1755,1756],{"class":877},"post",[679,1758,881],{"class":778},[679,1760,909],{"class":774},[679,1762,1763],{"class":688},"\u002Fapi\u002Forders",[679,1765,909],{"class":774},[679,1767,848],{"class":774},[679,1769,1009],{"class":774},[679,1771,1013],{"class":1012},[679,1773,1016],{"class":774},[679,1775,1019],{"class":932},[679,1777,1022],{"class":774},[679,1779,1780,1782,1784,1786,1788,1790,1792,1794,1796,1798,1801,1803,1805,1808,1810,1812,1814,1817,1819],{"class":681,"line":797},[679,1781,1028],{"class":778},[679,1783,970],{"class":774},[679,1785,995],{"class":877},[679,1787,881],{"class":890},[679,1789,909],{"class":774},[679,1791,1039],{"class":688},[679,1793,909],{"class":774},[679,1795,1016],{"class":890},[679,1797,970],{"class":774},[679,1799,1800],{"class":877},"fork",[679,1802,881],{"class":890},[679,1804,909],{"class":774},[679,1806,1807],{"class":688},"send-receipt",[679,1809,909],{"class":774},[679,1811,848],{"class":774},[679,1813,1215],{"class":932},[679,1815,1816],{"class":774}," ()",[679,1818,1019],{"class":932},[679,1820,1022],{"class":774},[679,1822,1823,1826,1829],{"class":681,"line":818},[679,1824,1825],{"class":770},"    await",[679,1827,1828],{"class":877}," sendReceipt",[679,1830,956],{"class":890},[679,1832,1833,1836,1839,1841,1843,1845,1847,1850,1852,1854,1857,1859,1861,1863,1865],{"class":681,"line":839},[679,1834,1835],{"class":877},"    useLogger",[679,1837,1838],{"class":890},"()",[679,1840,970],{"class":774},[679,1842,1048],{"class":877},[679,1844,881],{"class":890},[679,1846,1053],{"class":774},[679,1848,1849],{"class":890}," email",[679,1851,894],{"class":774},[679,1853,775],{"class":774},[679,1855,1856],{"class":890}," sent",[679,1858,894],{"class":774},[679,1860,1096],{"class":1095},[679,1862,782],{"class":774},[679,1864,782],{"class":774},[679,1866,921],{"class":890},[679,1868,1869,1872],{"class":681,"line":867},[679,1870,1871],{"class":774},"  }",[679,1873,921],{"class":890},[679,1875,1876,1878,1880,1882,1884,1886,1888,1890,1892,1894,1896],{"class":681,"line":874},[679,1877,1075],{"class":770},[679,1879,1078],{"class":778},[679,1881,970],{"class":774},[679,1883,1083],{"class":877},[679,1885,881],{"class":890},[679,1887,1053],{"class":774},[679,1889,1090],{"class":890},[679,1891,894],{"class":774},[679,1893,1096],{"class":1095},[679,1895,782],{"class":774},[679,1897,921],{"class":890},[679,1899,1900,1902],{"class":681,"line":887},[679,1901,918],{"class":774},[679,1903,921],{"class":778},[587,1905,1906,1907,1913,1914,1917,1918,1922],{},"If you schedule async work after the response without forking, post-emit ",[1156,1908,1909,1912],{},[591,1910,1911],{},"[evlog]"," warnings","\nhelp you notice stale ",[591,1915,1916],{},"set()"," calls. See ",[646,1919,1921],{"href":1920},"\u002Flearn\u002Fwide-events#after-emit-sealing-and-background-work","After emit"," in Wide events.",[657,1924,1926],{"id":1925},"error-handling","Error Handling",[587,1928,1929,1930,1933,1934,1937,1938,1941,1942,1945],{},"Use ",[591,1931,1932],{},"createError"," for structured errors with ",[591,1935,1936],{},"why",", ",[591,1939,1940],{},"fix",", and ",[591,1943,1944],{},"link"," fields:",[669,1947,1949],{"className":760,"code":1948,"filename":762,"language":763,"meta":675,"style":675},"import { createError, parseError } from 'evlog'\n\napp.get('\u002Fcheckout', (c) => {\n  const log = c.get('log')\n  log.set({ cart: { items: 3, total: 9999 } })\n\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",[591,1950,1951,1975,1979,2008,2032,2075,2079,2090,2107,2119,2135,2151,2167,2173],{"__ignoreMap":675},[679,1952,1953,1955,1957,1960,1962,1965,1967,1969,1971,1973],{"class":681,"line":682},[679,1954,771],{"class":770},[679,1956,775],{"class":774},[679,1958,1959],{"class":778}," createError",[679,1961,848],{"class":774},[679,1963,1964],{"class":778}," parseError",[679,1966,782],{"class":774},[679,1968,785],{"class":770},[679,1970,788],{"class":774},[679,1972,834],{"class":688},[679,1974,794],{"class":774},[679,1976,1977],{"class":681,"line":797},[679,1978,871],{"emptyLinePlaceholder":870},[679,1980,1981,1983,1985,1987,1989,1991,1994,1996,1998,2000,2002,2004,2006],{"class":681,"line":818},[679,1982,967],{"class":778},[679,1984,970],{"class":774},[679,1986,995],{"class":877},[679,1988,881],{"class":778},[679,1990,909],{"class":774},[679,1992,1993],{"class":688},"\u002Fcheckout",[679,1995,909],{"class":774},[679,1997,848],{"class":774},[679,1999,1009],{"class":774},[679,2001,1013],{"class":1012},[679,2003,1016],{"class":774},[679,2005,1019],{"class":932},[679,2007,1022],{"class":774},[679,2009,2010,2012,2014,2016,2018,2020,2022,2024,2026,2028,2030],{"class":681,"line":839},[679,2011,1230],{"class":932},[679,2013,1233],{"class":778},[679,2015,1236],{"class":774},[679,2017,1078],{"class":778},[679,2019,970],{"class":774},[679,2021,995],{"class":877},[679,2023,881],{"class":890},[679,2025,909],{"class":774},[679,2027,1039],{"class":688},[679,2029,909],{"class":774},[679,2031,921],{"class":890},[679,2033,2034,2036,2038,2040,2042,2044,2047,2049,2051,2054,2056,2059,2061,2064,2066,2069,2071,2073],{"class":681,"line":867},[679,2035,1293],{"class":778},[679,2037,970],{"class":774},[679,2039,1048],{"class":877},[679,2041,881],{"class":890},[679,2043,1053],{"class":774},[679,2045,2046],{"class":890}," cart",[679,2048,894],{"class":774},[679,2050,775],{"class":774},[679,2052,2053],{"class":890}," items",[679,2055,894],{"class":774},[679,2057,2058],{"class":1145}," 3",[679,2060,848],{"class":774},[679,2062,2063],{"class":890}," total",[679,2065,894],{"class":774},[679,2067,2068],{"class":1145}," 9999",[679,2070,782],{"class":774},[679,2072,782],{"class":774},[679,2074,921],{"class":890},[679,2076,2077],{"class":681,"line":874},[679,2078,871],{"emptyLinePlaceholder":870},[679,2080,2081,2084,2086,2088],{"class":681,"line":887},[679,2082,2083],{"class":770},"  throw",[679,2085,1959],{"class":877},[679,2087,881],{"class":890},[679,2089,884],{"class":774},[679,2091,2092,2095,2097,2099,2102,2104],{"class":681,"line":915},[679,2093,2094],{"class":890},"    message",[679,2096,894],{"class":774},[679,2098,788],{"class":774},[679,2100,2101],{"class":688},"Payment failed",[679,2103,909],{"class":774},[679,2105,2106],{"class":774},",\n",[679,2108,2109,2112,2114,2117],{"class":681,"line":924},[679,2110,2111],{"class":890},"    status",[679,2113,894],{"class":774},[679,2115,2116],{"class":1145}," 402",[679,2118,2106],{"class":774},[679,2120,2121,2124,2126,2128,2131,2133],{"class":681,"line":929},[679,2122,2123],{"class":890},"    why",[679,2125,894],{"class":774},[679,2127,788],{"class":774},[679,2129,2130],{"class":688},"Card declined by issuer",[679,2132,909],{"class":774},[679,2134,2106],{"class":774},[679,2136,2137,2140,2142,2144,2147,2149],{"class":681,"line":959},[679,2138,2139],{"class":890},"    fix",[679,2141,894],{"class":774},[679,2143,788],{"class":774},[679,2145,2146],{"class":688},"Try a different payment method",[679,2148,909],{"class":774},[679,2150,2106],{"class":774},[679,2152,2153,2156,2158,2160,2163,2165],{"class":681,"line":964},[679,2154,2155],{"class":890},"    link",[679,2157,894],{"class":774},[679,2159,788],{"class":774},[679,2161,2162],{"class":688},"https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined",[679,2164,909],{"class":774},[679,2166,2106],{"class":774},[679,2168,2169,2171],{"class":681,"line":983},[679,2170,1871],{"class":774},[679,2172,921],{"class":890},[679,2174,2175,2177],{"class":681,"line":988},[679,2176,918],{"class":774},[679,2178,921],{"class":778},[587,2180,2181,2182,2185],{},"Handle errors globally with ",[591,2183,2184],{},"app.onError"," to return structured JSON responses:",[669,2187,2189],{"className":760,"code":2188,"filename":762,"language":763,"meta":675,"style":675},"import type { ContentfulStatusCode } from 'hono\u002Futils\u002Fhttp-status'\n\napp.onError((error, c) => {\n  c.get('log').error(error)\n  const parsed = parseError(error)\n\n  return c.json(\n    {\n      message: parsed.message,\n      why: parsed.why,\n      fix: parsed.fix,\n      link: parsed.link,\n    },\n    parsed.status as ContentfulStatusCode,\n  )\n})\n",[591,2190,2191,2213,2217,2243,2271,2288,2292,2305,2310,2326,2341,2356,2371,2376,2393,2398],{"__ignoreMap":675},[679,2192,2193,2195,2197,2199,2202,2204,2206,2208,2211],{"class":681,"line":682},[679,2194,771],{"class":770},[679,2196,851],{"class":770},[679,2198,775],{"class":774},[679,2200,2201],{"class":778}," ContentfulStatusCode",[679,2203,782],{"class":774},[679,2205,785],{"class":770},[679,2207,788],{"class":774},[679,2209,2210],{"class":688},"hono\u002Futils\u002Fhttp-status",[679,2212,794],{"class":774},[679,2214,2215],{"class":681,"line":797},[679,2216,871],{"emptyLinePlaceholder":870},[679,2218,2219,2221,2223,2226,2228,2230,2233,2235,2237,2239,2241],{"class":681,"line":818},[679,2220,967],{"class":778},[679,2222,970],{"class":774},[679,2224,2225],{"class":877},"onError",[679,2227,881],{"class":778},[679,2229,881],{"class":774},[679,2231,2232],{"class":1012},"error",[679,2234,848],{"class":774},[679,2236,1078],{"class":1012},[679,2238,1016],{"class":774},[679,2240,1019],{"class":932},[679,2242,1022],{"class":774},[679,2244,2245,2247,2249,2251,2253,2255,2257,2259,2261,2263,2265,2267,2269],{"class":681,"line":839},[679,2246,1028],{"class":778},[679,2248,970],{"class":774},[679,2250,995],{"class":877},[679,2252,881],{"class":890},[679,2254,909],{"class":774},[679,2256,1039],{"class":688},[679,2258,909],{"class":774},[679,2260,1016],{"class":890},[679,2262,970],{"class":774},[679,2264,2232],{"class":877},[679,2266,881],{"class":890},[679,2268,2232],{"class":778},[679,2270,921],{"class":890},[679,2272,2273,2275,2278,2280,2282,2284,2286],{"class":681,"line":867},[679,2274,1230],{"class":932},[679,2276,2277],{"class":778}," parsed",[679,2279,1236],{"class":774},[679,2281,1964],{"class":877},[679,2283,881],{"class":890},[679,2285,2232],{"class":778},[679,2287,921],{"class":890},[679,2289,2290],{"class":681,"line":874},[679,2291,871],{"emptyLinePlaceholder":870},[679,2293,2294,2296,2298,2300,2302],{"class":681,"line":887},[679,2295,1075],{"class":770},[679,2297,1078],{"class":778},[679,2299,970],{"class":774},[679,2301,1083],{"class":877},[679,2303,2304],{"class":890},"(\n",[679,2306,2307],{"class":681,"line":915},[679,2308,2309],{"class":774},"    {\n",[679,2311,2312,2315,2317,2319,2321,2324],{"class":681,"line":924},[679,2313,2314],{"class":890},"      message",[679,2316,894],{"class":774},[679,2318,2277],{"class":778},[679,2320,970],{"class":774},[679,2322,2323],{"class":778},"message",[679,2325,2106],{"class":774},[679,2327,2328,2331,2333,2335,2337,2339],{"class":681,"line":929},[679,2329,2330],{"class":890},"      why",[679,2332,894],{"class":774},[679,2334,2277],{"class":778},[679,2336,970],{"class":774},[679,2338,1936],{"class":778},[679,2340,2106],{"class":774},[679,2342,2343,2346,2348,2350,2352,2354],{"class":681,"line":959},[679,2344,2345],{"class":890},"      fix",[679,2347,894],{"class":774},[679,2349,2277],{"class":778},[679,2351,970],{"class":774},[679,2353,1940],{"class":778},[679,2355,2106],{"class":774},[679,2357,2358,2361,2363,2365,2367,2369],{"class":681,"line":964},[679,2359,2360],{"class":890},"      link",[679,2362,894],{"class":774},[679,2364,2277],{"class":778},[679,2366,970],{"class":774},[679,2368,1944],{"class":778},[679,2370,2106],{"class":774},[679,2372,2373],{"class":681,"line":983},[679,2374,2375],{"class":774},"    },\n",[679,2377,2378,2381,2383,2386,2389,2391],{"class":681,"line":988},[679,2379,2380],{"class":778},"    parsed",[679,2382,970],{"class":774},[679,2384,2385],{"class":778},"status",[679,2387,2388],{"class":770}," as",[679,2390,2201],{"class":685},[679,2392,2106],{"class":774},[679,2394,2395],{"class":681,"line":1025},[679,2396,2397],{"class":890},"  )\n",[679,2399,2400,2402],{"class":681,"line":1072},[679,2401,918],{"class":774},[679,2403,921],{"class":778},[587,2405,2406,2409,2410,2412,2413,2416,2417,2420,2421,2424],{},[591,2407,2408],{},"parseError()"," types ",[591,2411,2385],{}," as a ",[591,2414,2415],{},"number",", while Hono’s ",[591,2418,2419],{},"c.json()"," second argument expects ",[591,2422,2423],{},"ContentfulStatusCode",". The cast matches what you already return at runtime and satisfies TypeScript.",[587,2426,2427],{},"The error is captured and logged with both the custom context and structured error fields:",[669,2429,2431],{"className":671,"code":2430,"filename":1524,"language":674,"meta":675,"style":675},"14:58:20 ERROR [my-api] GET \u002Fcheckout 402 in 3ms\n  ├─ error: name=EvlogError message=Payment failed status=402\n  ├─ cart: items=3 total=9999\n  └─ requestId: 880a50ac-...\n",[591,2432,2433,2444,2466,2485],{"__ignoreMap":675},[679,2434,2435,2438,2441],{"class":681,"line":682},[679,2436,2437],{"class":685},"14:58:20",[679,2439,2440],{"class":688}," ERROR",[679,2442,2443],{"class":778}," [my-api] GET \u002Fcheckout 402 in 3ms\n",[679,2445,2446,2448,2451,2454,2457,2460,2463],{"class":681,"line":797},[679,2447,1542],{"class":685},[679,2449,2450],{"class":688}," error:",[679,2452,2453],{"class":688}," name=EvlogError",[679,2455,2456],{"class":688}," message=Payment",[679,2458,2459],{"class":688}," failed",[679,2461,2462],{"class":688}," status=",[679,2464,2465],{"class":1145},"402\n",[679,2467,2468,2470,2473,2476,2479,2482],{"class":681,"line":818},[679,2469,1542],{"class":685},[679,2471,2472],{"class":688}," cart:",[679,2474,2475],{"class":688}," items=",[679,2477,2478],{"class":1145},"3",[679,2480,2481],{"class":688}," total=",[679,2483,2484],{"class":1145},"9999\n",[679,2486,2487,2489,2491],{"class":681,"line":839},[679,2488,1578],{"class":685},[679,2490,1581],{"class":688},[679,2492,2493],{"class":688}," 880a50ac-...\n",[657,2495,526],{"id":2496},"configuration",[587,2498,2499,2500,2503,2504,2506],{},"See the ",[646,2501,2502],{"href":527},"Configuration reference"," for all available options (",[591,2505,878],{},", middleware options, sampling, silent mode, etc.).",[657,2508,2510],{"id":2509},"drain-enrichers","Drain & Enrichers",[587,2512,2513],{},"Configure drain adapters and enrichers directly in the middleware options:",[669,2515,2517],{"className":760,"code":2516,"filename":762,"language":763,"meta":675,"style":675},"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",[591,2518,2519,2539,2559,2563,2576,2580,2596,2609,2627,2638,2668,2673],{"__ignoreMap":675},[679,2520,2521,2523,2525,2528,2530,2532,2534,2537],{"class":681,"line":682},[679,2522,771],{"class":770},[679,2524,775],{"class":774},[679,2526,2527],{"class":778}," createAxiomDrain",[679,2529,782],{"class":774},[679,2531,785],{"class":770},[679,2533,788],{"class":774},[679,2535,2536],{"class":688},"evlog\u002Faxiom",[679,2538,794],{"class":774},[679,2540,2541,2543,2545,2548,2550,2552,2554,2557],{"class":681,"line":797},[679,2542,771],{"class":770},[679,2544,775],{"class":774},[679,2546,2547],{"class":778}," createUserAgentEnricher",[679,2549,782],{"class":774},[679,2551,785],{"class":770},[679,2553,788],{"class":774},[679,2555,2556],{"class":688},"evlog\u002Fenrichers",[679,2558,794],{"class":774},[679,2560,2561],{"class":681,"line":818},[679,2562,871],{"emptyLinePlaceholder":870},[679,2564,2565,2567,2570,2572,2574],{"class":681,"line":839},[679,2566,933],{"class":932},[679,2568,2569],{"class":778}," userAgent ",[679,2571,939],{"class":774},[679,2573,2547],{"class":877},[679,2575,956],{"class":778},[679,2577,2578],{"class":681,"line":867},[679,2579,871],{"emptyLinePlaceholder":870},[679,2581,2582,2584,2586,2588,2590,2592,2594],{"class":681,"line":874},[679,2583,967],{"class":778},[679,2585,970],{"class":774},[679,2587,973],{"class":877},[679,2589,881],{"class":778},[679,2591,834],{"class":877},[679,2593,881],{"class":778},[679,2595,884],{"class":774},[679,2597,2598,2601,2603,2605,2607],{"class":681,"line":887},[679,2599,2600],{"class":890},"  drain",[679,2602,894],{"class":774},[679,2604,2527],{"class":877},[679,2606,1838],{"class":778},[679,2608,2106],{"class":774},[679,2610,2611,2614,2616,2618,2621,2623,2625],{"class":681,"line":915},[679,2612,2613],{"class":877},"  enrich",[679,2615,894],{"class":774},[679,2617,1009],{"class":774},[679,2619,2620],{"class":1012},"ctx",[679,2622,1016],{"class":774},[679,2624,1019],{"class":932},[679,2626,1022],{"class":774},[679,2628,2629,2632,2634,2636],{"class":681,"line":924},[679,2630,2631],{"class":877},"    userAgent",[679,2633,881],{"class":890},[679,2635,2620],{"class":778},[679,2637,921],{"class":890},[679,2639,2640,2643,2645,2648,2650,2653,2655,2658,2660,2663,2665],{"class":681,"line":929},[679,2641,2642],{"class":778},"    ctx",[679,2644,970],{"class":774},[679,2646,2647],{"class":778},"event",[679,2649,970],{"class":774},[679,2651,2652],{"class":778},"region",[679,2654,1236],{"class":774},[679,2656,2657],{"class":778}," process",[679,2659,970],{"class":774},[679,2661,2662],{"class":778},"env",[679,2664,970],{"class":774},[679,2666,2667],{"class":778},"FLY_REGION\n",[679,2669,2670],{"class":681,"line":959},[679,2671,2672],{"class":774},"  },\n",[679,2674,2675,2677],{"class":681,"line":964},[679,2676,918],{"class":774},[679,2678,2679],{"class":778},"))\n",[661,2681,2683],{"id":2682},"pipeline-batching-retry","Pipeline (Batching & Retry)",[587,2685,2686,2687,2690],{},"For production, wrap your adapter with ",[591,2688,2689],{},"createDrainPipeline"," to batch events and retry on failure:",[669,2692,2694],{"className":760,"code":2693,"filename":762,"language":763,"meta":675,"style":675},"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",[591,2695,2696,2717,2735,2755,2759,2781,2810,2828,2834,2853,2857],{"__ignoreMap":675},[679,2697,2698,2700,2702,2704,2707,2709,2711,2713,2715],{"class":681,"line":682},[679,2699,771],{"class":770},[679,2701,851],{"class":770},[679,2703,775],{"class":774},[679,2705,2706],{"class":778}," DrainContext",[679,2708,782],{"class":774},[679,2710,785],{"class":770},[679,2712,788],{"class":774},[679,2714,834],{"class":688},[679,2716,794],{"class":774},[679,2718,2719,2721,2723,2725,2727,2729,2731,2733],{"class":681,"line":797},[679,2720,771],{"class":770},[679,2722,775],{"class":774},[679,2724,2527],{"class":778},[679,2726,782],{"class":774},[679,2728,785],{"class":770},[679,2730,788],{"class":774},[679,2732,2536],{"class":688},[679,2734,794],{"class":774},[679,2736,2737,2739,2741,2744,2746,2748,2750,2753],{"class":681,"line":818},[679,2738,771],{"class":770},[679,2740,775],{"class":774},[679,2742,2743],{"class":778}," createDrainPipeline",[679,2745,782],{"class":774},[679,2747,785],{"class":770},[679,2749,788],{"class":774},[679,2751,2752],{"class":688},"evlog\u002Fpipeline",[679,2754,794],{"class":774},[679,2756,2757],{"class":681,"line":839},[679,2758,871],{"emptyLinePlaceholder":870},[679,2760,2761,2763,2766,2768,2770,2772,2775,2777,2779],{"class":681,"line":867},[679,2762,933],{"class":932},[679,2764,2765],{"class":778}," pipeline ",[679,2767,939],{"class":774},[679,2769,2743],{"class":877},[679,2771,947],{"class":774},[679,2773,2774],{"class":685},"DrainContext",[679,2776,953],{"class":774},[679,2778,881],{"class":778},[679,2780,884],{"class":774},[679,2782,2783,2786,2788,2790,2793,2795,2798,2800,2803,2805,2808],{"class":681,"line":874},[679,2784,2785],{"class":890},"  batch",[679,2787,894],{"class":774},[679,2789,775],{"class":774},[679,2791,2792],{"class":890}," size",[679,2794,894],{"class":774},[679,2796,2797],{"class":1145}," 50",[679,2799,848],{"class":774},[679,2801,2802],{"class":890}," intervalMs",[679,2804,894],{"class":774},[679,2806,2807],{"class":1145}," 5000",[679,2809,912],{"class":774},[679,2811,2812,2815,2817,2819,2822,2824,2826],{"class":681,"line":887},[679,2813,2814],{"class":890},"  retry",[679,2816,894],{"class":774},[679,2818,775],{"class":774},[679,2820,2821],{"class":890}," maxAttempts",[679,2823,894],{"class":774},[679,2825,2058],{"class":1145},[679,2827,912],{"class":774},[679,2829,2830,2832],{"class":681,"line":915},[679,2831,918],{"class":774},[679,2833,921],{"class":778},[679,2835,2836,2838,2841,2843,2846,2848,2851],{"class":681,"line":924},[679,2837,933],{"class":932},[679,2839,2840],{"class":778}," drain ",[679,2842,939],{"class":774},[679,2844,2845],{"class":877}," pipeline",[679,2847,881],{"class":778},[679,2849,2850],{"class":877},"createAxiomDrain",[679,2852,980],{"class":778},[679,2854,2855],{"class":681,"line":929},[679,2856,871],{"emptyLinePlaceholder":870},[679,2858,2859,2861,2863,2865,2867,2869,2871,2873,2875,2877],{"class":681,"line":959},[679,2860,967],{"class":778},[679,2862,970],{"class":774},[679,2864,973],{"class":877},[679,2866,881],{"class":778},[679,2868,834],{"class":877},[679,2870,881],{"class":778},[679,2872,1053],{"class":774},[679,2874,2840],{"class":778},[679,2876,918],{"class":774},[679,2878,2679],{"class":778},[1152,2880,2881,2882,2885,2886,2889],{"color":1154,"icon":13},"Call ",[591,2883,2884],{},"drain.flush()"," on server shutdown to ensure all buffered events are sent. See the ",[646,2887,2888],{"href":514},"Pipeline docs"," for all options.",[657,2891,2893],{"id":2892},"tail-sampling","Tail Sampling",[587,2895,1929,2896,2899],{},[591,2897,2898],{},"keep"," to force-retain specific events regardless of head sampling:",[669,2901,2903],{"className":760,"code":2902,"filename":762,"language":763,"meta":675,"style":675},"app.use(evlog({\n  drain: createAxiomDrain(),\n  keep: (ctx) => {\n    if (ctx.duration && ctx.duration > 2000) ctx.shouldKeep = true\n  },\n}))\n",[591,2904,2905,2921,2933,2950,2994,2998],{"__ignoreMap":675},[679,2906,2907,2909,2911,2913,2915,2917,2919],{"class":681,"line":682},[679,2908,967],{"class":778},[679,2910,970],{"class":774},[679,2912,973],{"class":877},[679,2914,881],{"class":778},[679,2916,834],{"class":877},[679,2918,881],{"class":778},[679,2920,884],{"class":774},[679,2922,2923,2925,2927,2929,2931],{"class":681,"line":797},[679,2924,2600],{"class":890},[679,2926,894],{"class":774},[679,2928,2527],{"class":877},[679,2930,1838],{"class":778},[679,2932,2106],{"class":774},[679,2934,2935,2938,2940,2942,2944,2946,2948],{"class":681,"line":818},[679,2936,2937],{"class":877},"  keep",[679,2939,894],{"class":774},[679,2941,1009],{"class":774},[679,2943,2620],{"class":1012},[679,2945,1016],{"class":774},[679,2947,1019],{"class":932},[679,2949,1022],{"class":774},[679,2951,2952,2955,2957,2959,2961,2964,2967,2970,2972,2974,2977,2980,2982,2984,2986,2989,2991],{"class":681,"line":839},[679,2953,2954],{"class":770},"    if",[679,2956,1009],{"class":890},[679,2958,2620],{"class":778},[679,2960,970],{"class":774},[679,2962,2963],{"class":778},"duration",[679,2965,2966],{"class":774}," &&",[679,2968,2969],{"class":778}," ctx",[679,2971,970],{"class":774},[679,2973,2963],{"class":778},[679,2975,2976],{"class":774}," >",[679,2978,2979],{"class":1145}," 2000",[679,2981,1477],{"class":890},[679,2983,2620],{"class":778},[679,2985,970],{"class":774},[679,2987,2988],{"class":778},"shouldKeep",[679,2990,1236],{"class":774},[679,2992,2993],{"class":1095}," true\n",[679,2995,2996],{"class":681,"line":867},[679,2997,2672],{"class":774},[679,2999,3000,3002],{"class":681,"line":874},[679,3001,918],{"class":774},[679,3003,2679],{"class":778},[657,3005,3007],{"id":3006},"route-filtering","Route Filtering",[587,3009,3010,3011,3014,3015,3018],{},"Control which routes are logged with ",[591,3012,3013],{},"include"," and ",[591,3016,3017],{},"exclude"," patterns:",[669,3020,3022],{"className":760,"code":3021,"filename":762,"language":763,"meta":675,"style":675},"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",[591,3023,3024,3040,3062,3090,3099,3126,3152,3156],{"__ignoreMap":675},[679,3025,3026,3028,3030,3032,3034,3036,3038],{"class":681,"line":682},[679,3027,967],{"class":778},[679,3029,970],{"class":774},[679,3031,973],{"class":877},[679,3033,881],{"class":778},[679,3035,834],{"class":877},[679,3037,881],{"class":778},[679,3039,884],{"class":774},[679,3041,3042,3045,3047,3050,3052,3055,3057,3060],{"class":681,"line":797},[679,3043,3044],{"class":890},"  include",[679,3046,894],{"class":774},[679,3048,3049],{"class":778}," [",[679,3051,909],{"class":774},[679,3053,3054],{"class":688},"\u002Fapi\u002F**",[679,3056,909],{"class":774},[679,3058,3059],{"class":778},"]",[679,3061,2106],{"class":774},[679,3063,3064,3067,3069,3071,3073,3076,3078,3080,3082,3084,3086,3088],{"class":681,"line":818},[679,3065,3066],{"class":890},"  exclude",[679,3068,894],{"class":774},[679,3070,3049],{"class":778},[679,3072,909],{"class":774},[679,3074,3075],{"class":688},"\u002F_internal\u002F**",[679,3077,909],{"class":774},[679,3079,848],{"class":774},[679,3081,788],{"class":774},[679,3083,1002],{"class":688},[679,3085,909],{"class":774},[679,3087,3059],{"class":778},[679,3089,2106],{"class":774},[679,3091,3092,3095,3097],{"class":681,"line":839},[679,3093,3094],{"class":890},"  routes",[679,3096,894],{"class":774},[679,3098,1022],{"class":774},[679,3100,3101,3104,3107,3109,3111,3113,3115,3117,3119,3122,3124],{"class":681,"line":867},[679,3102,3103],{"class":774},"    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Logging",[587,3167,1929,3168,3171],{},[591,3169,3170],{},"evlog\u002Fhttp"," to send structured logs from any frontend to your Hono server. This works with any client framework (React, Vue, Svelte, vanilla JS).",[661,3173,3175],{"id":3174},"browser-setup","Browser setup",[669,3177,3180],{"className":760,"code":3178,"filename":3179,"language":763,"meta":675,"style":675},"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 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https:\u002F\u002Fgithub.com\u002Fevloghq\u002Fevlog.git\n",[679,3553,3554,3557],{"class":681,"line":797},[679,3555,3556],{"class":877},"cd",[679,3558,3559],{"class":688}," evlog\n",[679,3561,3562,3564],{"class":681,"line":818},[679,3563,673],{"class":685},[679,3565,3566],{"class":688}," install\n",[679,3568,3569,3571,3574],{"class":681,"line":839},[679,3570,673],{"class":685},[679,3572,3573],{"class":688}," example",[679,3575,3576],{"class":688}," hono\n",[587,3578,3579,3580,3584],{},"Open ",[646,3581,3582],{"href":3582,"rel":3583},"http:\u002F\u002Flocalhost:3000",[650]," to explore the interactive test UI.",[3586,3587,3588],"card-group",{},[3589,3590,3594],"card",{"icon":3591,"title":3592,"to":3593},"i-simple-icons-github","Source Code","https:\u002F\u002Fgithub.com\u002Fevloghq\u002Fevlog\u002Ftree\u002Fmain\u002Fexamples\u002Fhono","Browse the complete Hono example source on GitHub.",[657,3596,3598],{"id":3597},"next-steps","Next Steps",[587,3600,3601,3602,3604],{},"Deepen your ",[1156,3603,275],{}," integration:",[612,3606,3607,3612,3617,3622],{},[615,3608,3609,3611],{},[646,3610,51],{"href":52},": Design comprehensive events with context layering",[615,3613,3614,3616],{},[646,3615,148],{"href":153},": Send logs to Axiom, Sentry, PostHog, and more",[615,3618,3619,3621],{},[646,3620,66],{"href":67},": Control log volume with head and tail sampling",[615,3623,3624,3626,3627,1937,3629,1941,3631,3633],{},[646,3625,56],{"href":57},": Throw errors with ",[591,3628,1936],{},[591,3630,1940],{},[591,3632,1944],{}," fields",[3635,3636,3637],"style",{},"html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: 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