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material-theme material-theme-palenight","import { EVLOG_USER_AGENT, EVLOG_VERSION } from 'evlog\u002Ftoolkit'\n\nconsole.log(EVLOG_VERSION)    \u002F\u002F → \"2.16.0\"\nconsole.log(EVLOG_USER_AGENT) \u002F\u002F → \"evlog\u002F2.16.0\"\n","ts","",[478,587,588,626,633,652],{"__ignoreMap":585},[589,590,593,597,601,605,608,611,614,617,620,623],"span",{"class":591,"line":592},"line",1,[589,594,596],{"class":595},"s7zQu","import",[589,598,600],{"class":599},"sMK4o"," {",[589,602,604],{"class":603},"sTEyZ"," EVLOG_USER_AGENT",[589,606,607],{"class":599},",",[589,609,610],{"class":603}," EVLOG_VERSION",[589,612,613],{"class":599}," }",[589,615,616],{"class":595}," from",[589,618,619],{"class":599}," 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",[478,682,683],{},"name"," as ",[478,686,687],{},"source"," and the canonical ",[478,690,485],{},[478,692,693],{},"userAgent",". You don't need to think about it.",[450,696,697,698,701,702,704,705,707,708,710],{},"When you build a drain on top of ",[478,699,700],{},"httpPost"," from ",[478,703,577],{}," directly (e.g. for a fork with a different identity, or for a vendor that wants its own UA), pass ",[478,706,687],{}," and\u002For ",[478,709,693],{}," to override:",[580,712,714],{"className":582,"code":713,"language":584,"meta":585,"style":585},"import { httpPost } from 'evlog\u002Ftoolkit'\n\nawait httpPost({\n  url: 'https:\u002F\u002Fmy-platform.example.com\u002Fingest',\n  headers: { 'Content-Type': 'application\u002Fjson' },\n  body: '[]',\n  timeout: 5000,\n  label: 'my-platform',\n  source: 'my-platform',           \u002F\u002F sent as X-Evlog-Source\n  userAgent: 'my-fork\u002F1.0',        \u002F\u002F overrides the default User-Agent\n  \u002F\u002F userAgent: false,             \u002F\u002F suppress the header entirely\n})\n",[478,715,716,735,739,752,772,801,818,832,849,868,888,897],{"__ignoreMap":585},[589,717,718,720,722,725,727,729,731,733],{"class":591,"line":592},[589,719,596],{"class":595},[589,721,600],{"class":599},[589,723,724],{"class":603}," httpPost",[589,726,613],{"class":599},[589,728,616],{"class":595},[589,730,619],{"class":599},[589,732,577],{"class":622},[589,734,625],{"class":599},[589,736,737],{"class":591,"line":628},[589,738,632],{"emptyLinePlaceholder":631},[589,740,741,744,746,749],{"class":591,"line":635},[589,742,743],{"class":595},"await",[589,745,724],{"class":643},[589,747,748],{"class":603},"(",[589,750,751],{"class":599},"{\n",[589,753,754,758,761,763,766,769],{"class":591,"line":654},[589,755,757],{"class":756},"swJcz","  url",[589,759,760],{"class":599},":",[589,762,619],{"class":599},[589,764,765],{"class":622},"https:\u002F\u002Fmy-platform.example.com\u002Fingest",[589,767,768],{"class":599},"'",[589,770,771],{"class":599},",\n",[589,773,775,778,780,782,784,787,789,791,793,796,798],{"class":591,"line":774},5,[589,776,777],{"class":756},"  headers",[589,779,760],{"class":599},[589,781,600],{"class":599},[589,783,619],{"class":599},[589,785,786],{"class":756},"Content-Type",[589,788,768],{"class":599},[589,790,760],{"class":599},[589,792,619],{"class":599},[589,794,795],{"class":622},"application\u002Fjson",[589,797,768],{"class":599},[589,799,800],{"class":599}," },\n",[589,802,804,807,809,811,814,816],{"class":591,"line":803},6,[589,805,806],{"class":756},"  body",[589,808,760],{"class":599},[589,810,619],{"class":599},[589,812,813],{"class":622},"[]",[589,815,768],{"class":599},[589,817,771],{"class":599},[589,819,821,824,826,830],{"class":591,"line":820},7,[589,822,823],{"class":756},"  timeout",[589,825,760],{"class":599},[589,827,829],{"class":828},"sbssI"," 5000",[589,831,771],{"class":599},[589,833,835,838,840,842,845,847],{"class":591,"line":834},8,[589,836,837],{"class":756},"  label",[589,839,760],{"class":599},[589,841,619],{"class":599},[589,843,844],{"class":622},"my-platform",[589,846,768],{"class":599},[589,848,771],{"class":599},[589,850,852,855,857,859,861,863,865],{"class":591,"line":851},9,[589,853,854],{"class":756},"  source",[589,856,760],{"class":599},[589,858,619],{"class":599},[589,860,844],{"class":622},[589,862,768],{"class":599},[589,864,607],{"class":599},[589,866,867],{"class":650},"           \u002F\u002F sent as X-Evlog-Source\n",[589,869,871,874,876,878,881,883,885],{"class":591,"line":870},10,[589,872,873],{"class":756},"  userAgent",[589,875,760],{"class":599},[589,877,619],{"class":599},[589,879,880],{"class":622},"my-fork\u002F1.0",[589,882,768],{"class":599},[589,884,607],{"class":599},[589,886,887],{"class":650},"        \u002F\u002F overrides the default User-Agent\n",[589,889,891,894],{"class":591,"line":890},11,[589,892,893],{"class":650},"  \u002F\u002F userAgent: false,",[589,895,896],{"class":650},"             \u002F\u002F suppress the header entirely\n",[589,898,900,903],{"class":591,"line":899},12,[589,901,902],{"class":599},"}",[589,904,905],{"class":603},")\n",[535,907,909],{"id":908},"next-steps","Next steps",[540,911,912,922],{},[543,913,914,917,918,921],{},[675,915,916],{"href":404},"Custom Drains"," — ",[478,919,920],{},"defineHttpDrain"," injects identity headers automatically",[543,923,924,927],{},[675,925,926],{"href":409},"Drain Pipeline"," — wrap any drain in batch + retry while keeping identity headers",[929,930,931],"style",{},"html pre.shiki code .s7zQu, html code.shiki .s7zQu{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .sHwdD, html code.shiki .sHwdD{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}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: var(--shiki-light-text-decoration);}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: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}",{"title":585,"searchDepth":628,"depth":628,"links":933},[934,935,936,937],{"id":537,"depth":628,"text":538},{"id":570,"depth":628,"text":571},{"id":669,"depth":628,"text":670},{"id":908,"depth":628,"text":909},"Every drain request sent by evlog is tagged with User-Agent and X-Evlog-Source headers so receivers can identify and triage the traffic. Override or suppress them when your custom drain needs different identity.","md",[941],{"label":916,"icon":406,"to":404,"color":942,"variant":943},"neutral","subtle",{},{"title":398,"icon":401},{"title":445,"description":938},"UpSbbTef47vMxtu4Pph48SjBF68OaEPBZOLoGhRxGZU",[949,951],{"title":394,"path":395,"stem":396,"description":950,"icon":64,"children":-1},"Decide post-hoc whether to keep an event with full knowledge of its outcome (status, duration, errors). The opposite of head sampling — keep all errors and slow requests while throwing away healthy noise.",{"title":403,"path":404,"stem":405,"description":952,"icon":406,"children":-1},"Build a drain for any backend without a built-in adapter — defineHttpDrain for HTTP destinations, defineDrain for any other transport. Standardized config resolution, retries, timeouts, and identity headers handled for you.",1780167580956]