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The stream is the live feed, the fs reader is the historic log, the diagnostics channel lets a consumer subscribe by channel name alone, and consumer recipes show you how to wire any of them to a devtool, dashboard, CLI tail, or ",[557,589,590],{},"curl"," + ",[557,593,594],{},"jq",".",[597,598,599,612],"table",{},[600,601,602],"thead",{},[603,604,605,609],"tr",{},[606,607,608],"th",{},"You want to…",[606,610,611],{},"Use",[613,614,615,626,635,649],"tbody",{},[603,616,617,621],{},[618,619,620],"td",{},"Subscribe to live events (in-process or over SSE for browsers \u002F CLIs)",[618,622,623],{},[624,625,446],"a",{"href":447},[603,627,628,631],{},[618,629,630],{},"Replay or tail historic events from disk",[618,632,633],{},[624,634,460],{"href":461},[603,636,637,644],{},[618,638,639,640,591,642],{},"Build a small consumer panel, devtool, or pipe to ",[557,641,590],{},[557,643,594],{},[618,645,646],{},[624,647,648],{"href":465},"Consumer recipes",[603,650,651,654],{},[618,652,653],{},"Let a consumer subscribe without importing evlog, or reach a Cloudflare Tail Worker",[618,655,656],{},[624,657,456],{"href":457},[581,659,661],{"id":660},"plug-into-the-pipeline","Plug into the pipeline",[540,663,664,665,668],{},"Hook into the pipeline at one or more of its lifecycle stages. The four pages below cover the entire extension surface. Pick one when you have a single concern, pick ",[557,666,667],{},"definePlugin"," when you have several.",[597,670,671,679],{},[600,672,673],{},[603,674,675,677],{},[606,676,608],{},[606,678,611],{},[613,680,681,690,699,708],{},[603,682,683,686],{},[618,684,685],{},"React to lifecycle events from a single cohesive object (multiple hooks share state)",[618,687,688],{},[624,689,469],{"href":470},[603,691,692,695],{},[618,693,694],{},"Add a derived field on every event automatically",[618,696,697],{},[624,698,473],{"href":474},[603,700,701,704],{},[618,702,703],{},"Decide post-hoc whether to keep an event (status, duration, custom logic)",[618,705,706],{},[624,707,477],{"href":478},[603,709,710,721],{},[618,711,712,713,716,717,720],{},"Identify your evlog traffic on the receiver side (override ",[557,714,715],{},"User-Agent"," \u002F ",[557,718,719],{},"X-Evlog-Source",")",[618,722,723],{},[624,724,482],{"href":483},[581,726,728],{"id":727},"build-your-own-bricks","Build your own bricks",[540,730,731],{},"When the built-in adapters or framework integrations don't cover what you need, the toolkit lets you build your own with the same shape and ergonomics.",[597,733,734,742],{},[600,735,736],{},[603,737,738,740],{},[606,739,608],{},[606,741,611],{},[613,743,744,753,763],{},[603,745,746,749],{},[618,747,748],{},"Ship events to a backend without a built-in adapter (HTTP or any other transport)",[618,750,751],{},[624,752,487],{"href":488},[603,754,755,758],{},[618,756,757],{},"Wrap any drain in batch + retry + fanout for production",[618,759,760],{},[624,761,762],{"href":493},"Drain pipeline",[603,764,765,768],{},[618,766,767],{},"Support a framework that's not in the list, or a non-HTTP runtime",[618,769,770],{},[624,771,772],{"href":452},"Custom framework integration",[562,774,776],{"id":775},"what-works-where","What works where",[540,778,779,780,783,784,787,788,791],{},"Only the ",[624,781,782],{"href":447},"stream"," (in-process bus + SSE bridge) is ",[544,785,786],{},"local-only",": it lives inside one Node \u002F Bun \u002F Deno process and does not work on serverless platforms (Vercel Functions, Cloudflare Workers, AWS Lambda). The ",[624,789,790],{"href":447},"stream page"," explains the constraint in detail.",[540,793,794,795,797,798,797,801,797,804,797,807,797,810,797,813,797,816,819],{},"Everything else, from ",[624,796,460],{"href":461},", ",[624,799,800],{"href":470},"plugins",[624,802,803],{"href":474},"custom enrichers",[624,805,806],{"href":478},"tail sampling",[624,808,809],{"href":483},"identity headers",[624,811,812],{"href":488},"custom drains",[624,814,815],{"href":493},"drain pipeline",[624,817,818],{"href":452},"custom framework integration",", runs everywhere evlog runs.",{"title":573,"searchDepth":821,"depth":821,"links":822},2,[823,824,830],{"id":564,"depth":821,"text":565},{"id":578,"depth":821,"text":579,"children":825},[826,828,829],{"id":583,"depth":827,"text":584},3,{"id":660,"depth":827,"text":661},{"id":727,"depth":827,"text":728},{"id":775,"depth":821,"text":776},"Observe what flows through the pipeline, plug into it, or build your own bricks. The map of every extension point evlog exposes.","md",[834,838,839],{"label":446,"icon":835,"to":447,"color":836,"variant":837},"i-lucide-radio","neutral","subtle",{"label":469,"icon":444,"to":470,"color":836,"variant":837},{"label":840,"icon":490,"to":488,"color":836,"variant":837},"Custom Drains",{},{"title":128,"icon":444},{"title":535,"description":831},"V_xDrKj8z8Ae6zV4vG6-iM5Kremy5pcLHNHZIqRw0Ss",[846,848],{"title":433,"path":434,"stem":435,"description":847,"children":-1},"[object Object]",{"title":446,"path":447,"stem":448,"description":849,"icon":449,"children":-1},"Subscribe to wide events flowing through evlog — in-process with createStreamDrain, or over the network with the local SSE stream server.",1786806587465]