eve/dist/src/client/ndjson.js

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

import"#protocol/message.js";import{normalizeMessageStreamEvent}from"#protocol/message-version.js";function isStreamDisconnectError(e){if(e instanceof DOMException)return e.name===`AbortError`;if(!(e instanceof Error))return!1;let t=`code`in e&&typeof e.code==`string`?e.code:void 0;return e.name===`AbortError`||e.message===`terminated`||t===`UND_ERR_SOCKET`||e instanceof TypeError&&/^(?:failed to fetch|fetch failed)$/i.test(e.message)||/abort|cancel|disconnect|premature close|socket|terminated/i.test(e.message)}async function*readNdjsonStream(e,t){let n=e.getReader(),r=new TextDecoder,i=``,a=!1;try{for(;;){let e=await readWithIdleTimeout(n,t?.idleTimeoutMs);if(e.done){a=!0,i+=r.decode();break}e.value&&(i+=r.decode(e.value,{stream:!0}));let o=i.indexOf(`
`);for(;o!==-1;){let e=i.slice(0,o).trim();i=i.slice(o+1),e.length>0&&(yield parseMessageStreamEvent(e,t.streamVersion)),o=i.indexOf(`
`)}}let e=i.trim();e.length>0&&(yield parseMessageStreamEvent(e,t.streamVersion))}finally{a||n.cancel().catch(()=>{}),n.releaseLock()}}function parseMessageStreamEvent(e,t){let n=JSON.parse(e);return normalizeMessageStreamEvent(t,n)}async function readWithIdleTimeout(e,t){let n;try{return t===void 0?await e.read():await Promise.race([e.read(),new Promise((e,r)=>{n=setTimeout(()=>r(new DOMException(`Session stream was idle.`,`AbortError`)),t)})])}catch(e){throw e instanceof TypeError?Error(`Session stream disconnected.`,{cause:e}):e}finally{n!==void 0&&clearTimeout(n)}}export{isStreamDisconnectError,readNdjsonStream};