[英]How can I start / stop a request stream with node.js?
I have 我有
return request({
method: "POST",
url: response.stream.url,
json: true,
forever: true,
body: {
sessionid: response.stream.sessionid,
symbols: symbolParams
}
}).on("data", onData)
That gives me data whenever it comes through. 无论什么时候发生,我都可以获得数据。 But what if I want to STOP listening on that stream, how can I do that?
但是,如果我想停止收听该流,那该怎么办呢?
It seems to implement Readable Stream interface, so pause() and resume() work. 它似乎实现了Readable Stream接口,所以pause()和resume()工作。
const request = require('request');
const req = request('http://google.com')
.on('data', data => {
console.log(data);
req.pause();
});
You can use https://nodejs.org/api/events.html#events_emitter_removelistener_eventname_listener 您可以使用https://nodejs.org/api/events.html#events_emitter_removelistener_eventname_listener
const req = request({
method: "POST",
url: response.stream.url,
json: true,
forever: true,
body: {
sessionid: response.stream.sessionid,
symbols: symbolParams
}
}).on("data", onData);
...
req.removeEventListener('data', onData);
You can also abort it: 你也可以中止它:
var req = request('http://google.com')...
...
req.abort();
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