Node.js http2stream.setTimeout() Method
The http2stream.setTimeout() method is an inbuilt application programming interface of class Http2Stream within http2 module which is used to set the duration for a time after which a particular action will take place.
Syntax:
const http2stream.setTimeout(msecs, callback)
Parameters: This method takes the integer value of duration.
Return Value: This method returns nothing but a callback function for commencing the particular activity after time out .
How to generate the private key and public certificate?
- Private key: Open notepad and copy paste the following key:
-----BEGIN RSA PRIVATE KEY----- MIICXQIBAAKBgQC38R9wXcUbhOd44FavgmE5R3K4JeYOHLnI7dUq1B8/Gv7l3SOg JKef/m9gM1KvUx951mapXGtcWgwB08J3vUE2YOZ4tWJArrVZES0BI/RmFAyhQFP5 HcWl3LSM9LRihP98F33oIkKaCxA5LxOrkgpV4HrUzIKTABDYah7RPex1WQIDAQAB AoGBAIXR71xxa9gUfc5L7+TqBs+EMmrUb6Vusp8CoGXzQvRHMJCMrMFySV0131Nu o0YYRDsAh1nJefYLMNcXd1BjqI+qY8IeRsxaY+9CB2KKGVVDO2uLdurdC2ZdlWXT Vwr3dDoyR0trnXJMmH2ijTeO6bush8HuXxvxJBjvEllM5QYxAkEA3jwny9JP+RFu 0rkqPBe/wi5pXpPl7PUtdNAGrh6S5958wUoR4f9bvwmTBv1nQzExKWu4EIp+7vjJ fBeRZhnBvQJBANPjjge8418PS9zAFyKlITq6cxmM4gOWeveQZwXVNvav0NH+OKdQ sZnnDiG26JWmnD/B8Audu97LcxjxcWI8Jc0CQEYA5PhLU229lA9EzI0JXhoozIBC TlcKFDuLm88VSmlHqDyqvF9YNOpEdc/p2rFLuZS2ndB4D+vu6mjwc5iZ3HECQCxy GBHRclQ3Ti9w76lpv+2kvI4IekRMZWDWnnWfwta+DGxwCgw2pfpleBZkWqdBepb5 JFQbcxQJ0wvRYXo8qaUCQQCgTvWswBj6OTP7LTvBlU1teAN2Lnrk/N5AYHZIXW6m nUG9lYvH7DztWDTioXMrruPF7bdXfZOVJD8t0I4OUzvC -----END RSA PRIVATE KEY-----
- Now save the file as private-key.pem
- Public certificate: Open notepad and copy paste the following key:
-----BEGIN CERTIFICATE----- MIICfzCCAegCCQDxxeXw914Y2DANBgkqhkiG9w0BAQsFADCBgzELMAkGA1UEBhMC SU4xEzARBgNVBAgMCldlc3RiZW5nYWwxEDAOBgNVBAcMB0tvbGthdGExFDASBgNV BAoMC1BhbmNvLCBJbmMuMRUwEwYDVQQDDAxSb2hpdCBQcmFzYWQxIDAeBgkqhkiG 9w0BCQEWEXJvZm9mb2ZAZ21haWwuY29tMB4XDTIwMDkwOTA1NTExN1oXDTIwMTAw OTA1NTExN1owgYMxCzAJBgNVBAYTAklOMRMwEQYDVQQIDApXZXN0YmVuZ2FsMRAw DgYDVQQHDAdLb2xrYXRhMRQwEgYDVQQKDAtQYW5jbywgSW5jLjEVMBMGA1UEAwwM Um9oaXQgUHJhc2FkMSAwHgYJKoZIhvcNAQkBFhFyb2ZvZm9mQGdtYWlsLmNvbTCB nzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAt/EfcF3FG4TneOBWr4JhOUdyuCXm Dhy5yO3VKtQfPxr+5d0joCSnn/5vYDNSr1MfedZmqVxrXFoMAdPCd71BNmDmeLVi QK61WREtASP0ZhQMoUBT+R3Fpdy0jPS0YoT/fBd96CJCmgsQOS8Tq5IKVeB61MyC kwAQ2Goe0T3sdVkCAwEAATANBgkqhkiG9w0BAQsFAAOBgQATe6ixdAjoV7BSHgRX bXM2+IZLq8kq3s7ck0EZrRVhsivutcaZwDXRCCinB+OlPedbzXwNZGvVX0nwPYHG BfiXwdiuZeVJ88ni6Fm6RhoPtu2QF1UExfBvSXuMBgR+evp+e3QadNpGx6Ppl1aC hWF6W2H9+MAlU7yvtmCQQuZmfQ== -----END CERTIFICATE-----
- Now save the file as public-cert.pem
Example 1: Filename: index.js
Javascript
// Node.js program to demonstrate the // Http2Stream.setTimeout() API const http2 = require( 'http2' ); const fs = require( 'fs' ); // private key and public certificate for access const options = { key: fs.readFileSync( 'private-key.pem' ), cert: fs.readFileSync( 'public-cert.pem' ), }; // creating and initializing server // by using http2.createServer() api const server = http2.createServer(options); server.on( 'stream' , (stream, requestHeaders) => { // setting time out for the stream // by using setTimeout() stream.setTimeout(3000, ()=>{ stream.respond({ ':status' : 200, 'content-type' : 'text/plain' }); stream.end( "surprise !!!" ); }) // stopping the server // by using the close() method server.close(()=>{ console.log( "server destroyed" ); }) }); server.listen(8000); // creating and initializing client // by using tls.connect() method const client = http2.connect( 'http://localhost:8000' ); const req = client.request( { ':method' : 'GET' , ':path' : '/' }); req.on( 'response' , (responseHeaders) => { console.log( "status : " + responseHeaders[ ":status" ]); }); req.on( 'data' , (data) => { console.log( 'Received: %s ' , data.toString().replace(/(\n)/gm, "" )); }); req.on( 'end' , () => { client.close(()=>{ console.log( "client destroyed" ); }) }); |
Output:
status : 200 Received: surprise !!! client destroyed server destroyed
Run the index.js file using the following command:
node index.js
Example 2:
Filename: index.js
Javascript
// Node.js program to demonstrate the // Http2Stream.setTimeout() API const http2 = require( 'http2' ); const fs = require( 'fs' ); // private key and public certificate for access const options = { key: fs.readFileSync( 'private-key.pem' ), cert: fs.readFileSync( 'public-cert.pem' ), }; // creating and initializing client // by using tls.connect() method const client = http2.connect( 'http://localhost:8000' ); const req = client.request( { ':method' : 'GET' , ':path' : '/' }); req.on( 'response' , (responseHeaders) => { console.log( "status : " + responseHeaders[ ":status" ]); }); req.on( 'data' , (data) => { console.log( 'Received: %s ' , data.toString().replace(/(\n)/gm, "" )); }); req.on( 'end' , () => { client.close(()=>{ console.log( "client destroyed" ); }) // Cancel the stream if there's // no activity after 3 seconds req.setTimeout(3000, ()=>{ req.close(NGHTTP2_CANCEL); }) }); |
Output:
events.js:292
throw er; // Unhandled ‘error’ event
^
Error [ERR_HTTP2_STREAM_CANCEL]: The pending stream has been canceled (caused by: connect ECONNREFUSED 127.0.0.1:8000)
at ClientHttp2Session.destroy (internal/http2/core.js:1379:20)
at Socket.socketOnError (internal/http2/core.js:2758:13)
at Socket.emit (events.js:315:20)
at emitErrorNT (internal/streams/destroy.js:92:8)
at emitErrorAndCloseNT (internal/streams/destroy.js:60:3)
at processTicksAndRejections (internal/process/task_queues.js:84:21)
Emitted ‘error’ event on ClientHttp2Stream instance at:
at emitErrorNT (internal/streams/destroy.js:92:8)
at emitErrorAndCloseNT (internal/streams/destroy.js:60:3)
at processTicksAndRejections (internal/process/task_queues.js:84:21) {
cause: Error: connect ECONNREFUSED 127.0.0.1:8000
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1141:16) {
errno: ‘ECONNREFUSED’,
code: ‘ECONNREFUSED’,
syscall: ‘connect’,
address: ‘127.0.0.1’,
port: 8000
},
code: ‘ERR_HTTP2_STREAM_CANCEL’
}
Run the index.js file using the following command:
node index.js
Reference: https://nodejs.org/dist/latest-v12.x/docs/api/http2.html#http2_http2stream_settimeout_msecs_callback