eve/dist/src/internal/nitro/routes/channel-dispatch.js

Filesystem-first framework for durable backend AI agents that run anywhere.

import{createGetSessionFn}from"#channel/session.js";import{createLogger,logError}from"#internal/logging.js";import{createSendFn}from"#channel/send.js";import{createCrossChannelReceiveFn,toCrossChannelTargets}from"#channel/cross-channel-receive.js";import{DEVELOPMENT_WORKFLOW_SECRET_ENV}from"#internal/workflow/development-world-protocol.js";import{readTrustedDevelopmentClientAddress}from"#internal/nitro/dev-client-address.js";import{createCancelFn}from"#channel/cancel.js";import{createResolveActiveSessionFn}from"#channel/resolve-active-session.js";import{attachAgentInfoRouteResponse,attachRouteAgent}from"#internal/nitro/routes/channel-route-context.js";import{resolveNitroChannelRuntimeBundle}from"#internal/nitro/routes/runtime-stack.js";import{readVercelProjectLink}from"#internal/vercel/project-link.js";import{withVercelOidcProjectResolver}from"#runtime/governance/auth/vercel-oidc-project.js";const log=createLogger(`channel.dispatch`);async function dispatchChannelRequest(e,t,r){let i=await resolveNitroChannelRuntimeBundle(r),a=i.channels.find(e=>`${e.method.toUpperCase()} ${e.urlPath}`===t);if(a===void 0)return Response.json({error:`No matching channel for this request.`,ok:!1},{status:404});let o=buildRouteArgs(e,i,a.name,r),s;try{s=await withDevelopmentVercelOidcContext(r,e.req,async()=>{if(a.handler)return await a.handler(e.req,o.args);let t={agent:o.agent,waitUntil:o.args.waitUntil,params:o.args.params,requestIp:o.args.requestIp};return await a.fetch(e.req,t)})}catch(r){let i=logError(log,`channel handler threw`,r,{routeKey:t,channel:a.name});return flushBackgroundTasks(e,o.backgroundTasks,t,a.name),Response.json({error:`Channel handler failed.`,errorId:i,ok:!1},{status:500})}return flushBackgroundTasks(e,o.backgroundTasks,t,a.name),s}async function dispatchChannelWebSocketRequest(e,t,r){let i=await resolveNitroChannelRuntimeBundle(r),a=i.channels.find(e=>`${e.method.toUpperCase()} ${e.urlPath}`===t);if(a===void 0||a.websocket===void 0)return rejectWebSocketUpgrade({error:`No matching websocket channel for this request.`,ok:!1},404);let o=a.websocket,s=buildRouteArgs(e,i,a.name,r);try{let n=await withDevelopmentVercelOidcContext(r,e.req,async()=>await o(e.req,s.args));return flushBackgroundTasks(e,s.backgroundTasks,t,a.name),n}catch(r){let i=logError(log,`channel websocket handler threw`,r,{routeKey:t,channel:a.name});return flushBackgroundTasks(e,s.backgroundTasks,t,a.name),rejectWebSocketUpgrade({error:`Channel websocket handler failed.`,errorId:i,ok:!1},500)}}async function withDevelopmentVercelOidcContext(e,t,n){return e.kind===`development`?await withVercelOidcProjectResolver({request:t,resolveCurrentProject:async()=>{let t=await readVercelProjectLink(e.appRoot);return t===void 0?void 0:{environment:`development`,projectId:t.projectId}}},n):await n()}function buildRouteArgs(t,n,o,s){let c=readVercelRequestId(t.req.headers),l=extractRequestIp(t,s),u=[],d=t.context.params??{},f={};for(let[e,t]of Object.entries(d))f[e]=decodeURIComponent(t);let waitUntil=e=>{u.push(e)},p=n.channels.find(e=>e.name===o)?.adapter??{kind:`channel`},m=createRouteAgent(n.runtime,c);return{agent:m,args:attachRouteAgent(attachAgentInfoRouteResponse({send:createSendFn(n.runtime,p,o,{requestId:c}),resolveActiveSession:createResolveActiveSessionFn(n.runtime,o),cancel:createCancelFn(n.runtime,o),getSession:createGetSessionFn(n.runtime),receive:createCrossChannelReceiveFn(n.runtime,toCrossChannelTargets(n.channels)),params:f,waitUntil,requestIp:l},async()=>{let{handleAgentInfoRequest:e}=await import(`#internal/nitro/routes/info.js`);return await e(s)}),m),backgroundTasks:u}}function createRouteAgent(e,t){return{async cancelTurn(t){return await e.cancelTurn(t)},async deliver(n){let r={...n,requestId:t};return await e.deliver(r)},async getEventStream(t,n){return await e.getEventStream(t,n)},async run(n){let r={...n,requestId:t};return await e.run(r)}}}function readVercelRequestId(e){let t=e.get(`x-vercel-id`)?.trim();return t===``?void 0:t}function rejectWebSocketUpgrade(e,t){return{upgrade(){throw Response.json(e,{status:t})}}}function flushBackgroundTasks(e,t,r,i){t.length!==0&&e.waitUntil(Promise.allSettled(t).then(e=>{for(let t of e)t.status===`rejected`&&logError(log,`channel background task failed`,t.reason,{routeKey:r,channel:i})}))}function extractRequestIp(e,t){if(t.kind===`development`){let t=readTrustedDevelopmentClientAddress(e.req.headers,process.env[DEVELOPMENT_WORKFLOW_SECRET_ENV]);if(t!==void 0)return t}return extractSocketIp(e)}function extractSocketIp(e){let t=e.req.ip;return typeof t==`string`&&t.length>0?t:null}export{dispatchChannelRequest,dispatchChannelWebSocketRequest};