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completes.",[630,631,634,637,668],"prompt",{":actions":632,"description":633,"icon":283},"[\"copy\",\"cursor\",\"claude\"]","Set up evlog in my Hono app",[613,635,636],{},"Set up evlog in my Hono app.",[638,639,640,644,647,650,653,659,662,665],"ul",{},[641,642,643],"li",{},"Install evlog: pnpm add evlog",[641,645,646],{},"Call initLogger({ env: { service: 'my-api' } }) at startup",[641,648,649],{},"Alternatively, use evlog\u002Fvite plugin in vite.config.ts for auto-init (replaces initLogger)",[641,651,652],{},"Import evlog middleware and EvlogVariables type from 'evlog\u002Fhono'",[641,654,655,656],{},"Add app.use(evlog()) and type the app with Hono",[657,658],"evlog-variables",{},[641,660,661],{},"Access the logger via c.get('log') in route handlers, or useLogger() from 'evlog\u002Fhono' in nested functions",[641,663,664],{},"Use log.set() to accumulate context throughout the request",[641,666,667],{},"Optionally pass drain, enrich, include, and keep options to 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sum",[705,1497,907],{"class":916},[705,1499,1500],{"class":804},"orders",[705,1502,1503],{"class":916},") ",[705,1505,944],{"class":800},[705,1507,808],{"class":800},[705,1509,947],{"class":916},[705,1511,1512],{"class":707,"line":990},[705,1513,897],{"emptyLinePlaceholder":896},[705,1515,1516,1518,1520,1522,1524,1526,1528,1530,1532,1534,1536],{"class":707,"line":1009},[705,1517,1101],{"class":796},[705,1519,1104],{"class":804},[705,1521,996],{"class":800},[705,1523,1109],{"class":903},[705,1525,907],{"class":916},[705,1527,1079],{"class":800},[705,1529,1330],{"class":804},[705,1531,874],{"class":800},[705,1533,1438],{"class":804},[705,1535,808],{"class":800},[705,1537,947],{"class":916},[705,1539,1540,1542],{"class":707,"line":1014},[705,1541,944],{"class":800},[705,1543,947],{"class":804},[613,1545,1546],{},"All fields are merged into a single wide event emitted when the request completes:",[695,1548,1551],{"className":697,"code":1549,"filename":1550,"language":700,"meta":701,"style":701},"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",[617,1552,1553,1564,1584,1600],{"__ignoreMap":701},[705,1554,1555,1558,1561],{"class":707,"line":708},[705,1556,1557],{"class":711},"14:58:15",[705,1559,1560],{"class":714}," INFO",[705,1562,1563],{"class":804}," [my-api] GET \u002Fusers\u002Fusr_123 200 in 12ms\n",[705,1565,1566,1569,1572,1575,1578,1581],{"class":707,"line":823},[705,1567,1568],{"class":711},"  ├─",[705,1570,1571],{"class":714}," orders:",[705,1573,1574],{"class":714}," count=",[705,1576,1577],{"class":1171},"2",[705,1579,1580],{"class":714}," totalRevenue=",[705,1582,1583],{"class":1171},"6298\n",[705,1585,1586,1588,1591,1594,1597],{"class":707,"line":844},[705,1587,1568],{"class":711},[705,1589,1590],{"class":714}," user:",[705,1592,1593],{"class":714}," id=usr_123",[705,1595,1596],{"class":714}," name=Alice",[705,1598,1599],{"class":714}," plan=pro\n",[705,1601,1602,1605,1608],{"class":707,"line":865},[705,1603,1604],{"class":711},"  └─",[705,1606,1607],{"class":714}," requestId:",[705,1609,1610],{"class":714}," 4a8ff3a8-...\n",[683,1612,1614],{"id":1613},"accessing-the-logger-deeper-in-the-stack","Accessing the logger deeper in the stack",[613,1616,1617,1619,1620,1622,1623,1625],{},[617,1618,623],{}," is the idiomatic accessor inside a route handler. Once you are a few\nlayers down (a service, a repository), threading ",[617,1621,1039],{}," everywhere gets noisy. ",[617,1624,627],{},"\nresolves the same request logger without it:",[695,1627,1630],{"className":786,"code":1628,"filename":1629,"language":789,"meta":701,"style":701},"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",[617,1631,1632,1651,1655,1682,1694,1722],{"__ignoreMap":701},[705,1633,1634,1636,1638,1641,1643,1645,1647,1649],{"class":707,"line":708},[705,1635,797],{"class":796},[705,1637,801],{"class":800},[705,1639,1640],{"class":804}," useLogger",[705,1642,808],{"class":800},[705,1644,811],{"class":796},[705,1646,814],{"class":800},[705,1648,619],{"class":714},[705,1650,820],{"class":800},[705,1652,1653],{"class":707,"line":823},[705,1654,897],{"emptyLinePlaceholder":896},[705,1656,1657,1660,1662,1665,1668,1670,1673,1675,1678,1680],{"class":707,"line":844},[705,1658,1659],{"class":796},"export",[705,1661,1241],{"class":958},[705,1663,1664],{"class":958}," function",[705,1666,1667],{"class":903}," chargeCard",[705,1669,907],{"class":800},[705,1671,1672],{"class":1038},"amount",[705,1674,920],{"class":800},[705,1676,1677],{"class":711}," number",[705,1679,1042],{"class":800},[705,1681,1048],{"class":800},[705,1683,1684,1686,1688,1690,1692],{"class":707,"line":865},[705,1685,1256],{"class":958},[705,1687,1259],{"class":804},[705,1689,1262],{"class":800},[705,1691,1640],{"class":903},[705,1693,982],{"class":916},[705,1695,1696,1698,1700,1702,1704,1706,1709,1711,1713,1716,1718,1720],{"class":707,"line":893},[705,1697,1319],{"class":804},[705,1699,996],{"class":800},[705,1701,1074],{"class":903},[705,1703,907],{"class":916},[705,1705,1079],{"class":800},[705,1707,1708],{"class":916}," payment",[705,1710,920],{"class":800},[705,1712,801],{"class":800},[705,1714,1715],{"class":804}," amount",[705,1717,808],{"class":800},[705,1719,808],{"class":800},[705,1721,947],{"class":916},[705,1723,1724],{"class":707,"line":900},[705,1725,1726],{"class":800},"}\n",[613,1728,1729],{},"Both return the same logger, so pick whichever reads better at the call site.",[1178,1731,1732,1734,1735,1738,1739,1742,1743,1746,1747,1750,1751,1753],{"color":1180,"icon":13},[617,1733,627],{}," is backed by ",[617,1736,1737],{},"AsyncLocalStorage",". On Cloudflare Workers this requires the\n",[617,1740,1741],{},"nodejs_compat"," (or ",[617,1744,1745],{},"nodejs_als",") compatibility flag in ",[617,1748,1749],{},"wrangler.toml",". ",[617,1752,623],{},"\nworks with or without it, so deployments that cannot enable the flag keep using it.",[687,1755,1757],{"id":1756},"background-work","Background work",[613,1759,1760,1765,1766,920],{},[1182,1761,1762],{},[617,1763,1764],{},"log.fork()"," runs work under a forked logger that emits its own wide event, correlated\nto the request via ",[617,1767,1768],{},"_parentRequestId",[695,1770,1772],{"className":786,"code":1771,"filename":788,"language":789,"meta":701,"style":701},"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",[617,1773,1774,1804,1847,1857,1893,1900,1924],{"__ignoreMap":701},[705,1775,1776,1778,1780,1783,1785,1787,1790,1792,1794,1796,1798,1800,1802],{"class":707,"line":708},[705,1777,993],{"class":804},[705,1779,996],{"class":800},[705,1781,1782],{"class":903},"post",[705,1784,907],{"class":804},[705,1786,935],{"class":800},[705,1788,1789],{"class":714},"\u002Fapi\u002Forders",[705,1791,935],{"class":800},[705,1793,874],{"class":800},[705,1795,1035],{"class":800},[705,1797,1039],{"class":1038},[705,1799,1042],{"class":800},[705,1801,1045],{"class":958},[705,1803,1048],{"class":800},[705,1805,1806,1808,1810,1812,1814,1816,1818,1820,1822,1824,1827,1829,1831,1834,1836,1838,1840,1843,1845],{"class":707,"line":823},[705,1807,1054],{"class":804},[705,1809,996],{"class":800},[705,1811,1021],{"class":903},[705,1813,907],{"class":916},[705,1815,935],{"class":800},[705,1817,1065],{"class":714},[705,1819,935],{"class":800},[705,1821,1042],{"class":916},[705,1823,996],{"class":800},[705,1825,1826],{"class":903},"fork",[705,1828,907],{"class":916},[705,1830,935],{"class":800},[705,1832,1833],{"class":714},"send-receipt",[705,1835,935],{"class":800},[705,1837,874],{"class":800},[705,1839,1241],{"class":958},[705,1841,1842],{"class":800}," ()",[705,1844,1045],{"class":958},[705,1846,1048],{"class":800},[705,1848,1849,1852,1855],{"class":707,"line":844},[705,1850,1851],{"class":796},"    await",[705,1853,1854],{"class":903}," sendReceipt",[705,1856,982],{"class":916},[705,1858,1859,1862,1865,1867,1869,1871,1873,1876,1878,1880,1883,1885,1887,1889,1891],{"class":707,"line":865},[705,1860,1861],{"class":903},"    useLogger",[705,1863,1864],{"class":916},"()",[705,1866,996],{"class":800},[705,1868,1074],{"class":903},[705,1870,907],{"class":916},[705,1872,1079],{"class":800},[705,1874,1875],{"class":916}," email",[705,1877,920],{"class":800},[705,1879,801],{"class":800},[705,1881,1882],{"class":916}," sent",[705,1884,920],{"class":800},[705,1886,1122],{"class":1121},[705,1888,808],{"class":800},[705,1890,808],{"class":800},[705,1892,947],{"class":916},[705,1894,1895,1898],{"class":707,"line":893},[705,1896,1897],{"class":800},"  }",[705,1899,947],{"class":916},[705,1901,1902,1904,1906,1908,1910,1912,1914,1916,1918,1920,1922],{"class":707,"line":900},[705,1903,1101],{"class":796},[705,1905,1104],{"class":804},[705,1907,996],{"class":800},[705,1909,1109],{"class":903},[705,1911,907],{"class":916},[705,1913,1079],{"class":800},[705,1915,1116],{"class":916},[705,1917,920],{"class":800},[705,1919,1122],{"class":1121},[705,1921,808],{"class":800},[705,1923,947],{"class":916},[705,1925,1926,1928],{"class":707,"line":913},[705,1927,944],{"class":800},[705,1929,947],{"class":804},[613,1931,1932,1933,1939,1940,1943,1944,1948],{},"If you schedule async work after the response without forking, post-emit ",[1182,1934,1935,1938],{},[617,1936,1937],{},"[evlog]"," warnings","\nhelp you notice stale ",[617,1941,1942],{},"set()"," calls. See ",[672,1945,1947],{"href":1946},"\u002Flearn\u002Fwide-events#after-emit-sealing-and-background-work","After emit"," in Wide events.",[683,1950,1952],{"id":1951},"error-handling","Error Handling",[613,1954,1955,1956,1959,1960,1963,1964,1967,1968,1971],{},"Use ",[617,1957,1958],{},"createError"," for structured errors with ",[617,1961,1962],{},"why",", ",[617,1965,1966],{},"fix",", and ",[617,1969,1970],{},"link"," fields:",[695,1973,1975],{"className":786,"code":1974,"filename":788,"language":789,"meta":701,"style":701},"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",[617,1976,1977,2001,2005,2034,2058,2101,2105,2116,2133,2145,2161,2177,2193,2199],{"__ignoreMap":701},[705,1978,1979,1981,1983,1986,1988,1991,1993,1995,1997,1999],{"class":707,"line":708},[705,1980,797],{"class":796},[705,1982,801],{"class":800},[705,1984,1985],{"class":804}," createError",[705,1987,874],{"class":800},[705,1989,1990],{"class":804}," parseError",[705,1992,808],{"class":800},[705,1994,811],{"class":796},[705,1996,814],{"class":800},[705,1998,860],{"class":714},[705,2000,820],{"class":800},[705,2002,2003],{"class":707,"line":823},[705,2004,897],{"emptyLinePlaceholder":896},[705,2006,2007,2009,2011,2013,2015,2017,2020,2022,2024,2026,2028,2030,2032],{"class":707,"line":844},[705,2008,993],{"class":804},[705,2010,996],{"class":800},[705,2012,1021],{"class":903},[705,2014,907],{"class":804},[705,2016,935],{"class":800},[705,2018,2019],{"class":714},"\u002Fcheckout",[705,2021,935],{"class":800},[705,2023,874],{"class":800},[705,2025,1035],{"class":800},[705,2027,1039],{"class":1038},[705,2029,1042],{"class":800},[705,2031,1045],{"class":958},[705,2033,1048],{"class":800},[705,2035,2036,2038,2040,2042,2044,2046,2048,2050,2052,2054,2056],{"class":707,"line":865},[705,2037,1256],{"class":958},[705,2039,1259],{"class":804},[705,2041,1262],{"class":800},[705,2043,1104],{"class":804},[705,2045,996],{"class":800},[705,2047,1021],{"class":903},[705,2049,907],{"class":916},[705,2051,935],{"class":800},[705,2053,1065],{"class":714},[705,2055,935],{"class":800},[705,2057,947],{"class":916},[705,2059,2060,2062,2064,2066,2068,2070,2073,2075,2077,2080,2082,2085,2087,2090,2092,2095,2097,2099],{"class":707,"line":893},[705,2061,1319],{"class":804},[705,2063,996],{"class":800},[705,2065,1074],{"class":903},[705,2067,907],{"class":916},[705,2069,1079],{"class":800},[705,2071,2072],{"class":916}," cart",[705,2074,920],{"class":800},[705,2076,801],{"class":800},[705,2078,2079],{"class":916}," items",[705,2081,920],{"class":800},[705,2083,2084],{"class":1171}," 3",[705,2086,874],{"class":800},[705,2088,2089],{"class":916}," total",[705,2091,920],{"class":800},[705,2093,2094],{"class":1171}," 9999",[705,2096,808],{"class":800},[705,2098,808],{"class":800},[705,2100,947],{"class":916},[705,2102,2103],{"class":707,"line":900},[705,2104,897],{"emptyLinePlaceholder":896},[705,2106,2107,2110,2112,2114],{"class":707,"line":913},[705,2108,2109],{"class":796},"  throw",[705,2111,1985],{"class":903},[705,2113,907],{"class":916},[705,2115,910],{"class":800},[705,2117,2118,2121,2123,2125,2128,2130],{"class":707,"line":941},[705,2119,2120],{"class":916},"    message",[705,2122,920],{"class":800},[705,2124,814],{"class":800},[705,2126,2127],{"class":714},"Payment failed",[705,2129,935],{"class":800},[705,2131,2132],{"class":800},",\n",[705,2134,2135,2138,2140,2143],{"class":707,"line":950},[705,2136,2137],{"class":916},"    status",[705,2139,920],{"class":800},[705,2141,2142],{"class":1171}," 402",[705,2144,2132],{"class":800},[705,2146,2147,2150,2152,2154,2157,2159],{"class":707,"line":955},[705,2148,2149],{"class":916},"    why",[705,2151,920],{"class":800},[705,2153,814],{"class":800},[705,2155,2156],{"class":714},"Card declined by issuer",[705,2158,935],{"class":800},[705,2160,2132],{"class":800},[705,2162,2163,2166,2168,2170,2173,2175],{"class":707,"line":985},[705,2164,2165],{"class":916},"    fix",[705,2167,920],{"class":800},[705,2169,814],{"class":800},[705,2171,2172],{"class":714},"Try a different payment method",[705,2174,935],{"class":800},[705,2176,2132],{"class":800},[705,2178,2179,2182,2184,2186,2189,2191],{"class":707,"line":990},[705,2180,2181],{"class":916},"    link",[705,2183,920],{"class":800},[705,2185,814],{"class":800},[705,2187,2188],{"class":714},"https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined",[705,2190,935],{"class":800},[705,2192,2132],{"class":800},[705,2194,2195,2197],{"class":707,"line":1009},[705,2196,1897],{"class":800},[705,2198,947],{"class":916},[705,2200,2201,2203],{"class":707,"line":1014},[705,2202,944],{"class":800},[705,2204,947],{"class":804},[613,2206,2207,2208,2211],{},"Handle errors globally with ",[617,2209,2210],{},"app.onError"," to return structured JSON responses:",[695,2213,2215],{"className":786,"code":2214,"filename":788,"language":789,"meta":701,"style":701},"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",[617,2216,2217,2239,2243,2269,2297,2314,2318,2331,2336,2352,2367,2382,2397,2402,2419,2424],{"__ignoreMap":701},[705,2218,2219,2221,2223,2225,2228,2230,2232,2234,2237],{"class":707,"line":708},[705,2220,797],{"class":796},[705,2222,877],{"class":796},[705,2224,801],{"class":800},[705,2226,2227],{"class":804}," ContentfulStatusCode",[705,2229,808],{"class":800},[705,2231,811],{"class":796},[705,2233,814],{"class":800},[705,2235,2236],{"class":714},"hono\u002Futils\u002Fhttp-status",[705,2238,820],{"class":800},[705,2240,2241],{"class":707,"line":823},[705,2242,897],{"emptyLinePlaceholder":896},[705,2244,2245,2247,2249,2252,2254,2256,2259,2261,2263,2265,2267],{"class":707,"line":844},[705,2246,993],{"class":804},[705,2248,996],{"class":800},[705,2250,2251],{"class":903},"onError",[705,2253,907],{"class":804},[705,2255,907],{"class":800},[705,2257,2258],{"class":1038},"error",[705,2260,874],{"class":800},[705,2262,1104],{"class":1038},[705,2264,1042],{"class":800},[705,2266,1045],{"class":958},[705,2268,1048],{"class":800},[705,2270,2271,2273,2275,2277,2279,2281,2283,2285,2287,2289,2291,2293,2295],{"class":707,"line":865},[705,2272,1054],{"class":804},[705,2274,996],{"class":800},[705,2276,1021],{"class":903},[705,2278,907],{"class":916},[705,2280,935],{"class":800},[705,2282,1065],{"class":714},[705,2284,935],{"class":800},[705,2286,1042],{"class":916},[705,2288,996],{"class":800},[705,2290,2258],{"class":903},[705,2292,907],{"class":916},[705,2294,2258],{"class":804},[705,2296,947],{"class":916},[705,2298,2299,2301,2304,2306,2308,2310,2312],{"class":707,"line":893},[705,2300,1256],{"class":958},[705,2302,2303],{"class":804}," parsed",[705,2305,1262],{"class":800},[705,2307,1990],{"class":903},[705,2309,907],{"class":916},[705,2311,2258],{"class":804},[705,2313,947],{"class":916},[705,2315,2316],{"class":707,"line":900},[705,2317,897],{"emptyLinePlaceholder":896},[705,2319,2320,2322,2324,2326,2328],{"class":707,"line":913},[705,2321,1101],{"class":796},[705,2323,1104],{"class":804},[705,2325,996],{"class":800},[705,2327,1109],{"class":903},[705,2329,2330],{"class":916},"(\n",[705,2332,2333],{"class":707,"line":941},[705,2334,2335],{"class":800},"    {\n",[705,2337,2338,2341,2343,2345,2347,2350],{"class":707,"line":950},[705,2339,2340],{"class":916},"      message",[705,2342,920],{"class":800},[705,2344,2303],{"class":804},[705,2346,996],{"class":800},[705,2348,2349],{"class":804},"message",[705,2351,2132],{"class":800},[705,2353,2354,2357,2359,2361,2363,2365],{"class":707,"line":955},[705,2355,2356],{"class":916},"      why",[705,2358,920],{"class":800},[705,2360,2303],{"class":804},[705,2362,996],{"class":800},[705,2364,1962],{"class":804},[705,2366,2132],{"class":800},[705,2368,2369,2372,2374,2376,2378,2380],{"class":707,"line":985},[705,2370,2371],{"class":916},"      fix",[705,2373,920],{"class":800},[705,2375,2303],{"class":804},[705,2377,996],{"class":800},[705,2379,1966],{"class":804},[705,2381,2132],{"class":800},[705,2383,2384,2387,2389,2391,2393,2395],{"class":707,"line":990},[705,2385,2386],{"class":916},"      link",[705,2388,920],{"class":800},[705,2390,2303],{"class":804},[705,2392,996],{"class":800},[705,2394,1970],{"class":804},[705,2396,2132],{"class":800},[705,2398,2399],{"class":707,"line":1009},[705,2400,2401],{"class":800},"    },\n",[705,2403,2404,2407,2409,2412,2415,2417],{"class":707,"line":1014},[705,2405,2406],{"class":804},"    parsed",[705,2408,996],{"class":800},[705,2410,2411],{"class":804},"status",[705,2413,2414],{"class":796}," as",[705,2416,2227],{"class":711},[705,2418,2132],{"class":800},[705,2420,2421],{"class":707,"line":1051},[705,2422,2423],{"class":916},"  )\n",[705,2425,2426,2428],{"class":707,"line":1098},[705,2427,944],{"class":800},[705,2429,947],{"class":804},[613,2431,2432,2435,2436,2438,2439,2442,2443,2446,2447,2450],{},[617,2433,2434],{},"parseError()"," types ",[617,2437,2411],{}," as a ",[617,2440,2441],{},"number",", while Hono’s ",[617,2444,2445],{},"c.json()"," second argument expects ",[617,2448,2449],{},"ContentfulStatusCode",". The cast matches what you already return at runtime and satisfies TypeScript.",[613,2452,2453],{},"The error is captured and logged with both the custom context and structured error fields:",[695,2455,2457],{"className":697,"code":2456,"filename":1550,"language":700,"meta":701,"style":701},"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",[617,2458,2459,2470,2492,2511],{"__ignoreMap":701},[705,2460,2461,2464,2467],{"class":707,"line":708},[705,2462,2463],{"class":711},"14:58:20",[705,2465,2466],{"class":714}," ERROR",[705,2468,2469],{"class":804}," [my-api] GET \u002Fcheckout 402 in 3ms\n",[705,2471,2472,2474,2477,2480,2483,2486,2489],{"class":707,"line":823},[705,2473,1568],{"class":711},[705,2475,2476],{"class":714}," error:",[705,2478,2479],{"class":714}," name=EvlogError",[705,2481,2482],{"class":714}," message=Payment",[705,2484,2485],{"class":714}," failed",[705,2487,2488],{"class":714}," status=",[705,2490,2491],{"class":1171},"402\n",[705,2493,2494,2496,2499,2502,2505,2508],{"class":707,"line":844},[705,2495,1568],{"class":711},[705,2497,2498],{"class":714}," cart:",[705,2500,2501],{"class":714}," items=",[705,2503,2504],{"class":1171},"3",[705,2506,2507],{"class":714}," total=",[705,2509,2510],{"class":1171},"9999\n",[705,2512,2513,2515,2517],{"class":707,"line":865},[705,2514,1604],{"class":711},[705,2516,1607],{"class":714},[705,2518,2519],{"class":714}," 880a50ac-...\n",[683,2521,552],{"id":2522},"configuration",[613,2524,2525,2526,2529,2530,2532],{},"See the ",[672,2527,2528],{"href":553},"Configuration reference"," for all available options (",[617,2531,904],{},", middleware options, sampling, silent mode, etc.).",[683,2534,2536],{"id":2535},"drain-enrichers","Drain & Enrichers",[613,2538,2539],{},"Configure drain adapters and enrichers directly in the middleware options:",[695,2541,2543],{"className":786,"code":2542,"filename":788,"language":789,"meta":701,"style":701},"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",[617,2544,2545,2565,2585,2589,2602,2606,2622,2635,2653,2664,2694,2699],{"__ignoreMap":701},[705,2546,2547,2549,2551,2554,2556,2558,2560,2563],{"class":707,"line":708},[705,2548,797],{"class":796},[705,2550,801],{"class":800},[705,2552,2553],{"class":804}," createAxiomDrain",[705,2555,808],{"class":800},[705,2557,811],{"class":796},[705,2559,814],{"class":800},[705,2561,2562],{"class":714},"evlog\u002Faxiom",[705,2564,820],{"class":800},[705,2566,2567,2569,2571,2574,2576,2578,2580,2583],{"class":707,"line":823},[705,2568,797],{"class":796},[705,2570,801],{"class":800},[705,2572,2573],{"class":804}," createUserAgentEnricher",[705,2575,808],{"class":800},[705,2577,811],{"class":796},[705,2579,814],{"class":800},[705,2581,2582],{"class":714},"evlog\u002Fenrichers",[705,2584,820],{"class":800},[705,2586,2587],{"class":707,"line":844},[705,2588,897],{"emptyLinePlaceholder":896},[705,2590,2591,2593,2596,2598,2600],{"class":707,"line":865},[705,2592,959],{"class":958},[705,2594,2595],{"class":804}," userAgent ",[705,2597,965],{"class":800},[705,2599,2573],{"class":903},[705,2601,982],{"class":804},[705,2603,2604],{"class":707,"line":893},[705,2605,897],{"emptyLinePlaceholder":896},[705,2607,2608,2610,2612,2614,2616,2618,2620],{"class":707,"line":900},[705,2609,993],{"class":804},[705,2611,996],{"class":800},[705,2613,999],{"class":903},[705,2615,907],{"class":804},[705,2617,860],{"class":903},[705,2619,907],{"class":804},[705,2621,910],{"class":800},[705,2623,2624,2627,2629,2631,2633],{"class":707,"line":913},[705,2625,2626],{"class":916},"  drain",[705,2628,920],{"class":800},[705,2630,2553],{"class":903},[705,2632,1864],{"class":804},[705,2634,2132],{"class":800},[705,2636,2637,2640,2642,2644,2647,2649,2651],{"class":707,"line":941},[705,2638,2639],{"class":903},"  enrich",[705,2641,920],{"class":800},[705,2643,1035],{"class":800},[705,2645,2646],{"class":1038},"ctx",[705,2648,1042],{"class":800},[705,2650,1045],{"class":958},[705,2652,1048],{"class":800},[705,2654,2655,2658,2660,2662],{"class":707,"line":950},[705,2656,2657],{"class":903},"    userAgent",[705,2659,907],{"class":916},[705,2661,2646],{"class":804},[705,2663,947],{"class":916},[705,2665,2666,2669,2671,2674,2676,2679,2681,2684,2686,2689,2691],{"class":707,"line":955},[705,2667,2668],{"class":804},"    ctx",[705,2670,996],{"class":800},[705,2672,2673],{"class":804},"event",[705,2675,996],{"class":800},[705,2677,2678],{"class":804},"region",[705,2680,1262],{"class":800},[705,2682,2683],{"class":804}," process",[705,2685,996],{"class":800},[705,2687,2688],{"class":804},"env",[705,2690,996],{"class":800},[705,2692,2693],{"class":804},"FLY_REGION\n",[705,2695,2696],{"class":707,"line":985},[705,2697,2698],{"class":800},"  },\n",[705,2700,2701,2703],{"class":707,"line":990},[705,2702,944],{"class":800},[705,2704,2705],{"class":804},"))\n",[687,2707,2709],{"id":2708},"pipeline-batching-retry","Pipeline (Batching & Retry)",[613,2711,2712,2713,2716],{},"For production, wrap your adapter with ",[617,2714,2715],{},"createDrainPipeline"," to batch events and retry on failure:",[695,2718,2720],{"className":786,"code":2719,"filename":788,"language":789,"meta":701,"style":701},"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",[617,2721,2722,2743,2761,2781,2785,2807,2836,2854,2860,2879,2883],{"__ignoreMap":701},[705,2723,2724,2726,2728,2730,2733,2735,2737,2739,2741],{"class":707,"line":708},[705,2725,797],{"class":796},[705,2727,877],{"class":796},[705,2729,801],{"class":800},[705,2731,2732],{"class":804}," DrainContext",[705,2734,808],{"class":800},[705,2736,811],{"class":796},[705,2738,814],{"class":800},[705,2740,860],{"class":714},[705,2742,820],{"class":800},[705,2744,2745,2747,2749,2751,2753,2755,2757,2759],{"class":707,"line":823},[705,2746,797],{"class":796},[705,2748,801],{"class":800},[705,2750,2553],{"class":804},[705,2752,808],{"class":800},[705,2754,811],{"class":796},[705,2756,814],{"class":800},[705,2758,2562],{"class":714},[705,2760,820],{"class":800},[705,2762,2763,2765,2767,2770,2772,2774,2776,2779],{"class":707,"line":844},[705,2764,797],{"class":796},[705,2766,801],{"class":800},[705,2768,2769],{"class":804}," createDrainPipeline",[705,2771,808],{"class":800},[705,2773,811],{"class":796},[705,2775,814],{"class":800},[705,2777,2778],{"class":714},"evlog\u002Fpipeline",[705,2780,820],{"class":800},[705,2782,2783],{"class":707,"line":865},[705,2784,897],{"emptyLinePlaceholder":896},[705,2786,2787,2789,2792,2794,2796,2798,2801,2803,2805],{"class":707,"line":893},[705,2788,959],{"class":958},[705,2790,2791],{"class":804}," pipeline ",[705,2793,965],{"class":800},[705,2795,2769],{"class":903},[705,2797,973],{"class":800},[705,2799,2800],{"class":711},"DrainContext",[705,2802,979],{"class":800},[705,2804,907],{"class":804},[705,2806,910],{"class":800},[705,2808,2809,2812,2814,2816,2819,2821,2824,2826,2829,2831,2834],{"class":707,"line":900},[705,2810,2811],{"class":916},"  batch",[705,2813,920],{"class":800},[705,2815,801],{"class":800},[705,2817,2818],{"class":916}," size",[705,2820,920],{"class":800},[705,2822,2823],{"class":1171}," 50",[705,2825,874],{"class":800},[705,2827,2828],{"class":916}," intervalMs",[705,2830,920],{"class":800},[705,2832,2833],{"class":1171}," 5000",[705,2835,938],{"class":800},[705,2837,2838,2841,2843,2845,2848,2850,2852],{"class":707,"line":913},[705,2839,2840],{"class":916},"  retry",[705,2842,920],{"class":800},[705,2844,801],{"class":800},[705,2846,2847],{"class":916}," maxAttempts",[705,2849,920],{"class":800},[705,2851,2084],{"class":1171},[705,2853,938],{"class":800},[705,2855,2856,2858],{"class":707,"line":941},[705,2857,944],{"class":800},[705,2859,947],{"class":804},[705,2861,2862,2864,2867,2869,2872,2874,2877],{"class":707,"line":950},[705,2863,959],{"class":958},[705,2865,2866],{"class":804}," drain ",[705,2868,965],{"class":800},[705,2870,2871],{"class":903}," pipeline",[705,2873,907],{"class":804},[705,2875,2876],{"class":903},"createAxiomDrain",[705,2878,1006],{"class":804},[705,2880,2881],{"class":707,"line":955},[705,2882,897],{"emptyLinePlaceholder":896},[705,2884,2885,2887,2889,2891,2893,2895,2897,2899,2901,2903],{"class":707,"line":985},[705,2886,993],{"class":804},[705,2888,996],{"class":800},[705,2890,999],{"class":903},[705,2892,907],{"class":804},[705,2894,860],{"class":903},[705,2896,907],{"class":804},[705,2898,1079],{"class":800},[705,2900,2866],{"class":804},[705,2902,944],{"class":800},[705,2904,2705],{"class":804},[1178,2906,2907,2908,2911,2912,2915],{"color":1180,"icon":13},"Call ",[617,2909,2910],{},"drain.flush()"," on server shutdown to ensure all buffered events are sent. See the ",[672,2913,2914],{"href":540},"Pipeline docs"," for all options.",[683,2917,2919],{"id":2918},"tail-sampling","Tail Sampling",[613,2921,1955,2922,2925],{},[617,2923,2924],{},"keep"," to force-retain specific events regardless of head sampling:",[695,2927,2929],{"className":786,"code":2928,"filename":788,"language":789,"meta":701,"style":701},"app.use(evlog({\n  drain: createAxiomDrain(),\n  keep: (ctx) => {\n    if (ctx.duration && ctx.duration > 2000) ctx.shouldKeep = true\n  },\n}))\n",[617,2930,2931,2947,2959,2976,3020,3024],{"__ignoreMap":701},[705,2932,2933,2935,2937,2939,2941,2943,2945],{"class":707,"line":708},[705,2934,993],{"class":804},[705,2936,996],{"class":800},[705,2938,999],{"class":903},[705,2940,907],{"class":804},[705,2942,860],{"class":903},[705,2944,907],{"class":804},[705,2946,910],{"class":800},[705,2948,2949,2951,2953,2955,2957],{"class":707,"line":823},[705,2950,2626],{"class":916},[705,2952,920],{"class":800},[705,2954,2553],{"class":903},[705,2956,1864],{"class":804},[705,2958,2132],{"class":800},[705,2960,2961,2964,2966,2968,2970,2972,2974],{"class":707,"line":844},[705,2962,2963],{"class":903},"  keep",[705,2965,920],{"class":800},[705,2967,1035],{"class":800},[705,2969,2646],{"class":1038},[705,2971,1042],{"class":800},[705,2973,1045],{"class":958},[705,2975,1048],{"class":800},[705,2977,2978,2981,2983,2985,2987,2990,2993,2996,2998,3000,3003,3006,3008,3010,3012,3015,3017],{"class":707,"line":865},[705,2979,2980],{"class":796},"    if",[705,2982,1035],{"class":916},[705,2984,2646],{"class":804},[705,2986,996],{"class":800},[705,2988,2989],{"class":804},"duration",[705,2991,2992],{"class":800}," &&",[705,2994,2995],{"class":804}," ctx",[705,2997,996],{"class":800},[705,2999,2989],{"class":804},[705,3001,3002],{"class":800}," >",[705,3004,3005],{"class":1171}," 2000",[705,3007,1503],{"class":916},[705,3009,2646],{"class":804},[705,3011,996],{"class":800},[705,3013,3014],{"class":804},"shouldKeep",[705,3016,1262],{"class":800},[705,3018,3019],{"class":1121}," true\n",[705,3021,3022],{"class":707,"line":893},[705,3023,2698],{"class":800},[705,3025,3026,3028],{"class":707,"line":900},[705,3027,944],{"class":800},[705,3029,2705],{"class":804},[683,3031,3033],{"id":3032},"route-filtering","Route Filtering",[613,3035,3036,3037,3040,3041,3044],{},"Control which routes are logged with ",[617,3038,3039],{},"include"," and ",[617,3042,3043],{},"exclude"," patterns:",[695,3046,3048],{"className":786,"code":3047,"filename":788,"language":789,"meta":701,"style":701},"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",[617,3049,3050,3066,3088,3116,3125,3152,3178,3182],{"__ignoreMap":701},[705,3051,3052,3054,3056,3058,3060,3062,3064],{"class":707,"line":708},[705,3053,993],{"class":804},[705,3055,996],{"class":800},[705,3057,999],{"class":903},[705,3059,907],{"class":804},[705,3061,860],{"class":903},[705,3063,907],{"class":804},[705,3065,910],{"class":800},[705,3067,3068,3071,3073,3076,3078,3081,3083,3086],{"class":707,"line":823},[705,3069,3070],{"class":916},"  include",[705,3072,920],{"class":800},[705,3074,3075],{"class":804}," [",[705,3077,935],{"class":800},[705,3079,3080],{"class":714},"\u002Fapi\u002F**",[705,3082,935],{"class":800},[705,3084,3085],{"class":804},"]",[705,3087,2132],{"class":800},[705,3089,3090,3093,3095,3097,3099,3102,3104,3106,3108,3110,3112,3114],{"class":707,"line":844},[705,3091,3092],{"class":916},"  exclude",[705,3094,920],{"class":800},[705,3096,3075],{"class":804},[705,3098,935],{"class":800},[705,3100,3101],{"class":714},"\u002F_internal\u002F**",[705,3103,935],{"class":800},[705,3105,874],{"class":800},[705,3107,814],{"class":800},[705,3109,1028],{"class":714},[705,3111,935],{"class":800},[705,3113,3085],{"class":804},[705,3115,2132],{"class":800},[705,3117,3118,3121,3123],{"class":707,"line":865},[705,3119,3120],{"class":916},"  routes",[705,3122,920],{"class":800},[705,3124,1048],{"class":800},[705,3126,3127,3130,3133,3135,3137,3139,3141,3143,3145,3148,3150],{"class":707,"line":893},[705,3128,3129],{"class":800},"    '",[705,3131,3132],{"class":916},"\u002Fapi\u002Fauth\u002F**",[705,3134,935],{"class":800},[705,3136,920],{"class":800},[705,3138,801],{"class":800},[705,3140,925],{"class":916},[705,3142,920],{"class":800},[705,3144,814],{"class":800},[705,3146,3147],{"class":714},"auth-service",[705,3149,935],{"class":800},[705,3151,938],{"class":800},[705,3153,3154,3156,3159,3161,3163,3165,3167,3169,3171,3174,3176],{"class":707,"line":900},[705,3155,3129],{"class":800},[705,3157,3158],{"class":916},"\u002Fapi\u002Fpayment\u002F**",[705,3160,935],{"class":800},[705,3162,920],{"class":800},[705,3164,801],{"class":800},[705,3166,925],{"class":916},[705,3168,920],{"class":800},[705,3170,814],{"class":800},[705,3172,3173],{"class":714},"payment-service",[705,3175,935],{"class":800},[705,3177,938],{"class":800},[705,3179,3180],{"class":707,"line":913},[705,3181,2698],{"class":800},[705,3183,3184,3186],{"class":707,"line":941},[705,3185,944],{"class":800},[705,3187,2705],{"class":804},[683,3189,3191],{"id":3190},"client-side-logging","Client-Side 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This works with any client framework (React, Vue, Svelte, vanilla JS).",[687,3199,3201],{"id":3200},"browser-setup","Browser setup",[695,3203,3206],{"className":786,"code":3204,"filename":3205,"language":789,"meta":701,"style":701},"import { initLogger, log } from 'evlog'\nimport { createHttpLogDrain } from 'evlog\u002Fhttp'\n\nconst drain = createHttpLogDrain({\n  drain: { endpoint: '\u002Fv1\u002Fingest' },\n})\ninitLogger({ drain })\n\nlog.info({ action: 'page_view', path: location.pathname })\n","client.ts",[617,3207,3208,3230,3249,3253,3267,3289,3295,3309,3313],{"__ignoreMap":701},[705,3209,3210,3212,3214,3216,3218,3220,3222,3224,3226,3228],{"class":707,"line":708},[705,3211,797],{"class":796},[705,3213,801],{"class":800},[705,3215,851],{"class":804},[705,3217,874],{"class":800},[705,3219,1259],{"class":804},[705,3221,808],{"class":800},[705,3223,811],{"class":796},[705,3225,814],{"class":800},[705,3227,860],{"class":714},[705,3229,820],{"class":800},[705,3231,3232,3234,3236,3239,3241,3243,3245,3247],{"class":707,"line":823},[705,3233,797],{"class":796},[705,3235,801],{"class":800},[705,3237,3238],{"class":804}," 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204)\n})\n",[617,3371,3372,3392,3396,3426,3458,3478,3516,3521,3542],{"__ignoreMap":701},[705,3373,3374,3376,3378,3380,3382,3384,3386,3388,3390],{"class":707,"line":708},[705,3375,797],{"class":796},[705,3377,877],{"class":796},[705,3379,801],{"class":800},[705,3381,2732],{"class":804},[705,3383,808],{"class":800},[705,3385,811],{"class":796},[705,3387,814],{"class":800},[705,3389,860],{"class":714},[705,3391,820],{"class":800},[705,3393,3394],{"class":707,"line":823},[705,3395,897],{"emptyLinePlaceholder":896},[705,3397,3398,3400,3402,3404,3406,3408,3410,3412,3414,3416,3418,3420,3422,3424],{"class":707,"line":844},[705,3399,993],{"class":804},[705,3401,996],{"class":800},[705,3403,1782],{"class":903},[705,3405,907],{"class":804},[705,3407,935],{"class":800},[705,3409,3284],{"class":714},[705,3411,935],{"class":800},[705,3413,874],{"class":800},[705,3415,1241],{"class":958},[705,3417,1035],{"class":800},[705,3419,1039],{"class":1038},[705,3421,1042],{"class":800},[705,3423,1045],{"class":958},[705,3425,1048],{"class":800},[705,3427,3428,3430,3433,3435,3437,3439,3441,3443,3445,3447,3449,3451,3454,3456],{"class":707,"line":865},[705,3429,1256],{"class":958},[705,3431,3432],{"class":804}," 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https:\u002F\u002Fgithub.com\u002Fevloghq\u002Fevlog.git\n",[705,3579,3580,3583],{"class":707,"line":823},[705,3581,3582],{"class":903},"cd",[705,3584,3585],{"class":714}," evlog\n",[705,3587,3588,3590],{"class":707,"line":844},[705,3589,699],{"class":711},[705,3591,3592],{"class":714}," install\n",[705,3594,3595,3597,3600],{"class":707,"line":865},[705,3596,699],{"class":711},[705,3598,3599],{"class":714}," example",[705,3601,3602],{"class":714}," hono\n",[613,3604,3605,3606,3610],{},"Open ",[672,3607,3608],{"href":3608,"rel":3609},"http:\u002F\u002Flocalhost:3000",[676]," to explore the interactive test UI.",[3612,3613,3614],"card-group",{},[3615,3616,3620],"card",{"icon":3617,"title":3618,"to":3619},"i-simple-icons-github","Source Code","https:\u002F\u002Fgithub.com\u002Fevloghq\u002Fevlog\u002Ftree\u002Fmain\u002Fexamples\u002Fhono","Browse the complete Hono example source on GitHub.",[683,3622,3624],{"id":3623},"next-steps","Next Steps",[613,3626,3627,3628,3630],{},"Deepen your ",[1182,3629,280],{}," integration:",[638,3632,3633,3638,3643,3648],{},[641,3634,3635,3637],{},[672,3636,51],{"href":52},": Design comprehensive events with context layering",[641,3639,3640,3642],{},[672,3641,153],{"href":158},": Send logs to Axiom, Sentry, PostHog, and more",[641,3644,3645,3647],{},[672,3646,66],{"href":67},": Control log volume with head and tail sampling",[641,3649,3650,3652,3653,1963,3655,1967,3657,3659],{},[672,3651,56],{"href":57},": Throw errors with ",[617,3654,1962],{},[617,3656,1966],{},[617,3658,1970],{}," fields",[3661,3662,3663],"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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