Created
August 17, 2019 17:00
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Read a JSONL file over chunked response stream over Kefir
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.11/lodash.min.js"></script> | |
| <script src="https://cdn.jsdelivr.net/npm/kefir@3.8.5/dist/kefir.min.js"></script> | |
| </head> | |
| <body> | |
| <script> | |
| Kefir | |
| .fromPromise(fetch('./sample.jsonl').then((res)=> res.body.getReader())) | |
| .flatMap((reader)=>{ | |
| return Kefir | |
| .stream(({ emit, error, end })=> { | |
| const iterate = ()=> reader.read().then(({ value, done })=> (done ? end : _.flow(emit, iterate))(new TextDecoder("utf-8").decode(value)), error); | |
| iterate(); | |
| }) | |
| .flatten(((ac)=>{ | |
| return (chunk)=> { | |
| let arr = _.split(ac + chunk, '\n'); | |
| const val = arr.splice('\n'); | |
| ac = arr[0]; | |
| return val; | |
| }; | |
| })('')); | |
| }) | |
| .map(JSON.parse) | |
| .log('>'); | |
| </script> | |
| </body> | |
| </html> |
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