response-iterator
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Creates an async iterator for a variety of inputs in the browser and node. Supports fetch, node-fetch, and cross-fetch
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{"version":3,"sources":["/Users/kevin/Dev/OpenSource/http/response-iterator/src/iterators/nodeStream.ts"],"sourcesContent":["import type { Readable as NodeReadableStream } from 'stream';\n\nconst hasIterator = typeof Symbol !== 'undefined' && Symbol.asyncIterator;\n\n/* c8 ignore start */\nexport default function nodeStreamIterator<T>(stream: NodeReadableStream): AsyncIterableIterator<T> {\n let cleanup = null;\n let error = null;\n let done = false;\n const data = [];\n const waiting = [];\n\n function onData(chunk) {\n if (error) return;\n if (waiting.length) return waiting.shift()[0]({ value: chunk, done: false });\n data.push(chunk);\n }\n function onError(err) {\n error = err;\n const all = waiting.slice();\n all.forEach((pair) => {\n pair[1](err);\n });\n !cleanup || cleanup();\n }\n function onEnd() {\n done = true;\n const all = waiting.slice();\n all.forEach((pair) => {\n pair[0]({ value: undefined, done: true });\n });\n !cleanup || cleanup();\n }\n\n cleanup = () => {\n cleanup = null;\n stream.removeListener('data', onData);\n stream.removeListener('error', onError);\n stream.removeListener('end', onEnd);\n stream.removeListener('finish', onEnd);\n stream.removeListener('close', onEnd);\n };\n stream.on('data', onData);\n stream.on('error', onError);\n stream.on('end', onEnd);\n stream.on('finish', onEnd);\n stream.on('close', onEnd);\n\n function getNext(): Promise<IteratorResult<T, boolean>> {\n return new Promise((resolve, reject) => {\n if (error) return reject(error);\n if (data.length) return resolve({ value: data.shift(), done: false });\n if (done) return resolve({ value: undefined, done: true });\n waiting.push([resolve, reject]);\n });\n }\n\n const iterator = {\n next(): Promise<IteratorResult<T, boolean>> {\n return getNext();\n },\n };\n\n if (hasIterator) {\n iterator[Symbol.asyncIterator] = function (): AsyncIterator<T> {\n return this;\n };\n }\n\n return iterator as AsyncIterableIterator<T>;\n}\n/* c8 ignore stop */\n"],"names":["hasIterator","Symbol","asyncIterator","nodeStreamIterator","stream","cleanup","error","done","data","waiting","onData","chunk","length","shift","value","push","onError","err","all","slice","forEach","pair","onEnd","undefined","removeListener","on","getNext","Promise","resolve","reject","iterator","next"],"mappings":"AAEA,MAAMA,cAAc,OAAOC,WAAW,eAAeA,OAAOC,aAAa;AAEzE,mBAAmB,GACnB,eAAe,SAASC,mBAAsBC,MAA0B;IACtE,IAAIC,UAAU;IACd,IAAIC,QAAQ;IACZ,IAAIC,OAAO;IACX,MAAMC,OAAO,EAAE;IACf,MAAMC,UAAU,EAAE;IAElB,SAASC,OAAOC,KAAK;QACnB,IAAIL,OAAO;QACX,IAAIG,QAAQG,MAAM,EAAE,OAAOH,QAAQI,KAAK,EAAE,CAAC,EAAE,CAAC;YAAEC,OAAOH;YAAOJ,MAAM;QAAM;QAC1EC,KAAKO,IAAI,CAACJ;IACZ;IACA,SAASK,QAAQC,GAAG;QAClBX,QAAQW;QACR,MAAMC,MAAMT,QAAQU,KAAK;QACzBD,IAAIE,OAAO,CAAC,CAACC;YACXA,IAAI,CAAC,EAAE,CAACJ;QACV;QACA,CAACZ,WAAWA;IACd;IACA,SAASiB;QACPf,OAAO;QACP,MAAMW,MAAMT,QAAQU,KAAK;QACzBD,IAAIE,OAAO,CAAC,CAACC;YACXA,IAAI,CAAC,EAAE,CAAC;gBAAEP,OAAOS;gBAAWhB,MAAM;YAAK;QACzC;QACA,CAACF,WAAWA;IACd;IAEAA,UAAU;QACRA,UAAU;QACVD,OAAOoB,cAAc,CAAC,QAAQd;QAC9BN,OAAOoB,cAAc,CAAC,SAASR;QAC/BZ,OAAOoB,cAAc,CAAC,OAAOF;QAC7BlB,OAAOoB,cAAc,CAAC,UAAUF;QAChClB,OAAOoB,cAAc,CAAC,SAASF;IACjC;IACAlB,OAAOqB,EAAE,CAAC,QAAQf;IAClBN,OAAOqB,EAAE,CAAC,SAAST;IACnBZ,OAAOqB,EAAE,CAAC,OAAOH;IACjBlB,OAAOqB,EAAE,CAAC,UAAUH;IACpBlB,OAAOqB,EAAE,CAAC,SAASH;IAEnB,SAASI;QACP,OAAO,IAAIC,QAAQ,CAACC,SAASC;YAC3B,IAAIvB,OAAO,OAAOuB,OAAOvB;YACzB,IAAIE,KAAKI,MAAM,EAAE,OAAOgB,QAAQ;gBAAEd,OAAON,KAAKK,KAAK;gBAAIN,MAAM;YAAM;YACnE,IAAIA,MAAM,OAAOqB,QAAQ;gBAAEd,OAAOS;gBAAWhB,MAAM;YAAK;YACxDE,QAAQM,IAAI,CAAC;gBAACa;gBAASC;aAAO;QAChC;IACF;IAEA,MAAMC,WAAW;QACfC;YACE,OAAOL;QACT;IACF;IAEA,IAAI1B,aAAa;QACf8B,QAAQ,CAAC7B,OAAOC,aAAa,CAAC,GAAG;YAC/B,OAAO,IAAI;QACb;IACF;IAEA,OAAO4B;AACT,EACA,kBAAkB"}