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The integration measures it for you and exposes the timing as ",[535,540,541],{},"auth.resolvedIn"," so you can spot regressions before users do.",[544,545,547],"h2",{"id":546},"watch-session-resolution-time","Watch session resolution time",[549,550,556],"pre",{"className":551,"code":552,"filename":553,"language":554,"meta":555,"style":555},"language-json shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","{\n  \"auth\": { \"resolvedIn\": 245, \"identified\": true },\n  \"duration\": \"312ms\"\n}\n","Wide Event — slow session resolution","json","",[535,557,558,567,619,640],{"__ignoreMap":555},[559,560,563],"span",{"class":561,"line":562},"line",1,[559,564,566],{"class":565},"sMK4o","{\n",[559,568,570,573,577,580,583,586,589,593,595,597,601,604,606,609,611,613,616],{"class":561,"line":569},2,[559,571,572],{"class":565},"  \"",[559,574,576],{"class":575},"spNyl","auth",[559,578,579],{"class":565},"\"",[559,581,582],{"class":565},":",[559,584,585],{"class":565}," {",[559,587,588],{"class":565}," \"",[559,590,592],{"class":591},"sBMFI","resolvedIn",[559,594,579],{"class":565},[559,596,582],{"class":565},[559,598,600],{"class":599},"sbssI"," 245",[559,602,603],{"class":565},",",[559,605,588],{"class":565},[559,607,608],{"class":591},"identified",[559,610,579],{"class":565},[559,612,582],{"class":565},[559,614,615],{"class":565}," true",[559,617,618],{"class":565}," },\n",[559,620,622,624,627,629,631,633,637],{"class":561,"line":621},3,[559,623,572],{"class":565},[559,625,626],{"class":575},"duration",[559,628,579],{"class":565},[559,630,582],{"class":565},[559,632,588],{"class":565},[559,634,636],{"class":635},"sfazB","312ms",[559,638,639],{"class":565},"\"\n",[559,641,643],{"class":561,"line":642},4,[559,644,645],{"class":565},"}\n",[532,647,648,649,651,652,654],{},"When ",[535,650,541],{}," is high relative to ",[535,653,626],{},", your auth backend is the bottleneck.",[544,656,658],{"id":657},"tune-for-high-traffic","Tune for high traffic",[660,661,662,677,690],"ol",{},[663,664,665,676],"li",{},[666,667,668,669],"strong",{},"Enable ",[670,671,675],"a",{"href":672,"rel":673},"https:\u002F\u002Fwww.better-auth.com\u002Fdocs\u002Fguides\u002Foptimizing-for-performance#cookie-cache",[674],"nofollow","cookie caching"," in Better Auth so session lookups don't hit the database every time.",[663,678,679,685,686,689],{},[666,680,681,682],{},"Use ",[535,683,684],{},"exclude"," on ",[535,687,688],{},"createAuthMiddleware"," to skip public routes that don't need user context.",[663,691,692,697],{},[666,693,681,694],{},[535,695,696],{},"include"," to limit resolution to specific route patterns instead of the entire app.",[532,699,700,701,704],{},"A common P95 target after caching: ",[535,702,703],{},"auth.resolvedIn \u003C 5ms",".",[544,706,708],{"id":707},"standalone-nitro","Standalone Nitro",[532,710,711,714,715,718,719,722],{},[535,712,713],{},"createAuthIdentifier"," is a factory that creates a Nitro ",[535,716,717],{},"request"," hook. Designed for ",[666,720,721],{},"standalone Nitro"," apps where the evlog Nitro module handles hook ordering.",[724,725,726,727,729,730,732,733,735],"note",{},"For ",[666,728,230],{},", use ",[535,731,688],{}," in a server middleware instead — Nitro plugin hook ordering can cause the logger to not be available yet in the ",[535,734,717],{}," hook.",[549,737,742],{"className":738,"code":739,"filename":740,"language":741,"meta":555,"style":555},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { createAuthIdentifier } from 'evlog\u002Fbetter-auth'\nimport { auth } from '.\u002Flib\u002Fauth'\n\nexport default defineNitroPlugin((nitroApp) => {\n  nitroApp.hooks.hook('request', createAuthIdentifier(auth, {\n    exclude: ['\u002Fapi\u002Fauth\u002F**', '\u002Fapi\u002Fpublic\u002F**'],\n  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nitroApp",[559,834,704],{"class":565},[559,836,837],{"class":754},"hooks",[559,839,704],{"class":565},[559,841,842],{"class":807},"hook",[559,844,811],{"class":845},"swJcz",[559,847,848],{"class":565},"'",[559,850,717],{"class":635},[559,852,848],{"class":565},[559,854,603],{"class":565},[559,856,755],{"class":807},[559,858,811],{"class":845},[559,860,576],{"class":754},[559,862,603],{"class":565},[559,864,826],{"class":565},[559,866,868,871,873,876,878,881,883,885,887,890,892,895],{"class":561,"line":867},6,[559,869,870],{"class":845},"    exclude",[559,872,582],{"class":565},[559,874,875],{"class":845}," [",[559,877,848],{"class":565},[559,879,880],{"class":635},"\u002Fapi\u002Fauth\u002F**",[559,882,848],{"class":565},[559,884,603],{"class":565},[559,886,764],{"class":565},[559,888,889],{"class":635},"\u002Fapi\u002Fpublic\u002F**",[559,891,848],{"class":565},[559,893,894],{"class":845},"]",[559,896,897],{"class":565},",\n",[559,899,901,904],{"class":561,"line":900},7,[559,902,903],{"class":565},"  }",[559,905,906],{"class":845},"))\n",[559,908,910,913],{"class":561,"line":909},8,[559,911,912],{"class":565},"}",[559,914,915],{"class":754},")\n",[532,917,918,919,704],{},"It accepts the same options as ",[670,920,922],{"href":921},"\u002Fuse-cases\u002Fbetter-auth\u002Fmiddleware#options",[535,923,688],{},[544,925,927],{"id":926},"combine-with-the-ai-sdk","Combine with the AI SDK",[532,929,930,931,936,937,940],{},"When you also use ",[670,932,933],{"href":328},[535,934,935],{},"evlog\u002Fai",", your wide events include both user identity ",[666,938,939],{},"and"," AI metrics in a single event:",[549,942,945],{"className":551,"code":943,"filename":944,"language":554,"meta":555,"style":555},"{\n  \"method\": \"POST\",\n  \"path\": \"\u002Fapi\u002Fchat\",\n  \"status\": 200,\n  \"duration\": \"4.5s\",\n  \"userId\": \"QBX9tPjJQExWawAbNll75\",\n  \"user\": {\n    \"id\": \"QBX9tPjJQExWawAbNll75\",\n    \"name\": \"Hugo Richard\",\n    \"email\": \"hugo@example.com\"\n  },\n  \"auth\": { \"resolvedIn\": 8, \"identified\": true },\n  \"ai\": {\n    \"calls\": 1,\n    \"model\": \"claude-sonnet-4.6\",\n    \"provider\": \"anthropic\",\n    \"inputTokens\": 3312,\n    \"outputTokens\": 814,\n    \"totalTokens\": 4126,\n    \"msToFirstChunk\": 234,\n    \"msToFinish\": 4500,\n    \"tokensPerSecond\": 180\n  }\n}\n","Wide Event — AI + 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