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",[563,617,565],{},".",[620,621,623],"h2",{"id":622},"why","Why",[625,626,627,635,644],"ul",{},[628,629,630,634],"li",{},[631,632,633],"strong",{},"Triage at the receiver."," Quickly distinguish evlog traffic from other clients in the receiving system's logs.",[628,636,637,640,641,643],{},[631,638,639],{},"Track adapter usage and version drift."," Roll out a new evlog version and watch the ",[563,642,565],{}," distribution change centrally.",[628,645,646,649,650,652],{},[631,647,648],{},"Debug a specific drain."," Filter by ",[563,651,578],{}," to isolate one adapter's behavior in a sea of incoming requests.",[620,654,656],{"id":655},"reading-the-version","Reading the version",[535,658,659,660,663],{},"Both constants are exported from ",[563,661,662],{},"evlog\u002Ftoolkit"," so your drain (or your receiver) can reference the canonical values:",[665,666,671],"pre",{"className":667,"code":668,"language":669,"meta":670,"style":670},"language-ts shiki shiki-themes material-theme-lighter 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'",[674,706,662],{"class":707},"sfazB",[674,709,710],{"class":684},"'\n",[674,712,714],{"class":676,"line":713},2,[674,715,717],{"emptyLinePlaceholder":716},true,"\n",[674,719,721,724,726,730,733],{"class":676,"line":720},3,[674,722,723],{"class":688},"console",[674,725,618],{"class":684},[674,727,729],{"class":728},"s2Zo4","log",[674,731,732],{"class":688},"(EVLOG_VERSION)    ",[674,734,736],{"class":735},"sHwdD","\u002F\u002F → \"2.16.0\"\n",[674,738,740,742,744,746,749],{"class":676,"line":739},4,[674,741,723],{"class":688},[674,743,618],{"class":684},[674,745,729],{"class":728},[674,747,748],{"class":688},"(EVLOG_USER_AGENT) ",[674,750,751],{"class":735},"\u002F\u002F → \"evlog\u002F2.16.0\"\n",[620,753,755],{"id":754},"overriding-from-a-custom-drain","Overriding from a custom drain",[535,757,758,759,765,766,769,770,773,774,769,776,779],{},"Adapters built with ",[760,761,762],"a",{"href":488},[563,763,764],{},"defineHttpDrain()"," automatically pass the drain ",[563,767,768],{},"name"," as ",[563,771,772],{},"source"," and the canonical ",[563,775,570],{},[563,777,778],{},"userAgent",". You don't need to think about it.",[535,781,782,783,786,787,789,790,792,793,795],{},"When you build a drain on top of ",[563,784,785],{},"httpPost"," from ",[563,788,662],{}," directly (e.g. for a fork with a different identity, or for a vendor that wants its own UA), pass ",[563,791,772],{}," and\u002For ",[563,794,778],{}," to override:",[665,797,799],{"className":667,"code":798,"language":669,"meta":670,"style":670},"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",[563,800,801,820,824,837,857,886,903,917,934,953,973,982],{"__ignoreMap":670},[674,802,803,805,807,810,812,814,816,818],{"class":676,"line":677},[674,804,681],{"class":680},[674,806,685],{"class":684},[674,808,809],{"class":688}," httpPost",[674,811,698],{"class":684},[674,813,701],{"class":680},[674,815,704],{"class":684},[674,817,662],{"class":707},[674,819,710],{"class":684},[674,821,822],{"class":676,"line":713},[674,823,717],{"emptyLinePlaceholder":716},[674,825,826,829,831,834],{"class":676,"line":720},[674,827,828],{"class":680},"await",[674,830,809],{"class":728},[674,832,833],{"class":688},"(",[674,835,836],{"class":684},"{\n",[674,838,839,843,846,848,851,854],{"class":676,"line":739},[674,840,842],{"class":841},"swJcz","  url",[674,844,845],{"class":684},":",[674,847,704],{"class":684},[674,849,850],{"class":707},"https:\u002F\u002Fmy-platform.example.com\u002Fingest",[674,852,853],{"class":684},"'",[674,855,856],{"class":684},",\n",[674,858,860,863,865,867,869,872,874,876,878,881,883],{"class":676,"line":859},5,[674,861,862],{"class":841},"  headers",[674,864,845],{"class":684},[674,866,685],{"class":684},[674,868,704],{"class":684},[674,870,871],{"class":841},"Content-Type",[674,873,853],{"class":684},[674,875,845],{"class":684},[674,877,704],{"class":684},[674,879,880],{"class":707},"application\u002Fjson",[674,882,853],{"class":684},[674,884,885],{"class":684}," },\n",[674,887,889,892,894,896,899,901],{"class":676,"line":888},6,[674,890,891],{"class":841},"  body",[674,893,845],{"class":684},[674,895,704],{"class":684},[674,897,898],{"class":707},"[]",[674,900,853],{"class":684},[674,902,856],{"class":684},[674,904,906,909,911,915],{"class":676,"line":905},7,[674,907,908],{"class":841},"  timeout",[674,910,845],{"class":684},[674,912,914],{"class":913},"sbssI"," 5000",[674,916,856],{"class":684},[674,918,920,923,925,927,930,932],{"class":676,"line":919},8,[674,921,922],{"class":841},"  label",[674,924,845],{"class":684},[674,926,704],{"class":684},[674,928,929],{"class":707},"my-platform",[674,931,853],{"class":684},[674,933,856],{"class":684},[674,935,937,940,942,944,946,948,950],{"class":676,"line":936},9,[674,938,939],{"class":841},"  source",[674,941,845],{"class":684},[674,943,704],{"class":684},[674,945,929],{"class":707},[674,947,853],{"class":684},[674,949,692],{"class":684},[674,951,952],{"class":735},"           \u002F\u002F sent as X-Evlog-Source\n",[674,954,956,959,961,963,966,968,970],{"class":676,"line":955},10,[674,957,958],{"class":841},"  userAgent",[674,960,845],{"class":684},[674,962,704],{"class":684},[674,964,965],{"class":707},"my-fork\u002F1.0",[674,967,853],{"class":684},[674,969,692],{"class":684},[674,971,972],{"class":735},"        \u002F\u002F overrides the default User-Agent\n",[674,974,976,979],{"class":676,"line":975},11,[674,977,978],{"class":735},"  \u002F\u002F userAgent: false,",[674,980,981],{"class":735},"             \u002F\u002F suppress the header entirely\n",[674,983,985,988],{"class":676,"line":984},12,[674,986,987],{"class":684},"}",[674,989,990],{"class":688},")\n",[620,992,994],{"id":993},"next-steps","Next steps",[625,996,997,1007],{},[628,998,999,1002,1003,1006],{},[760,1000,1001],{"href":488},"Custom Drains"," — ",[563,1004,1005],{},"defineHttpDrain"," injects identity headers automatically",[628,1008,1009,1012],{},[760,1010,1011],{"href":493},"Drain Pipeline"," — wrap any drain in batch + retry while keeping identity headers",[1014,1015,1016],"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":670,"searchDepth":713,"depth":713,"links":1018},[1019,1020,1021,1022],{"id":622,"depth":713,"text":623},{"id":655,"depth":713,"text":656},{"id":754,"depth":713,"text":755},{"id":993,"depth":713,"text":994},"Every drain request carries User-Agent and X-Evlog-Source so receivers can triage the traffic. Override or suppress them when you need to.","md",[1026],{"label":1001,"icon":490,"to":488,"color":1027,"variant":1028},"neutral","subtle",{},{"title":482,"icon":485},{"title":530,"description":1023},"iKl1lLZZIxWxGl0BZAinJBuHmeHlSk6iuaYlZue1Za0",[1034,1036],{"title":477,"path":478,"stem":479,"description":1035,"icon":480,"children":-1},"Decide after the fact whether to keep an event, knowing its status, duration, and errors. Keep every error, throw away healthy noise.",{"title":487,"path":488,"stem":489,"description":1037,"icon":490,"children":-1},"Build a drain for any backend without a built-in adapter. Config resolution, retries, timeouts, and identity headers are handled for you.",1786793482791]