Get a stream for a line delimited json response body in the browser, compatible with Fetch
Based on the JSON chunk parser from eBay's jsonpipe
Install ldjson-body using npm:
npm install --save ldjson-bodyconst ldjsonBody = require('ldjson-body');
fetch('https://a.url.that.provides.linedelimited.json')
.then(res => {
return ldjsonBody(res.body)
.on('data', obj => console.log(obj)) // print each received object
.on('error', err => {
console.error(err.chunk); // log the failing json chunk
console.error(err); // log the json parse error
})
.on('end', () => {
// parsing of the complete body is finished
});
})
.then(() => {
// parsing of the complete body is finished
})You'll need either native Promise and TextDecoder implementations or polyfills.
| Name | Type | Description |
|---|---|---|
| bodyStream | ReadableStream |
The response body stream to parse json from |
| options | Object |
See Options |
Returns: a Promise Emitter, i.e. a Promise enhanced with EventEmitter functions like on and off (for available events see Events).
Type: String
Default: "\n"
Set delimiter when parsing the response. Each delimiter indicates the start of a new json object.
Emitted for each found and parsed json object in the response body.
Emitted if an error occurs when parsing a chunk of json. error.chunk is set to the failing string.
Emitted when the whole body have been read and parsed.
MIT © Joakim Carlstein and eBay Inc