django channel set up routing -

-



i'm learning how setup websocket connection django-channel, i've got setup in routing.py 

from channels import route gallery import socket sock  channel_routing = [    # wire websocket channels our consumers:    route("websocket.connect", sock.ws_connect, path=r"^/render-status/$"),    route("websocket.receive", sock.ws_receive, , path=r"^/render-status/$"), ]

and following javascript 

// when we're using https, use wss too. var ws_scheme = window.location.protocol == "https:" ? "wss" : "ws"; var ws_path = ws_scheme + '://' + window.location.host + '/render-status/'; console.log("connecting " + ws_path) var socket = new reconnectingwebsocket(ws_path); socket.onmessage = function(message) {    console.log("got message: " + message.data);    var data = json.parse(message.data);    // if action started, add new item table    if (data.action == "started") {     }    // if action completed, update status    else if (data.action == "completed"){     } };  var message = {    action: "incomplete",    job_name: "10", }; socket.send(json.stringify(message));

tried out , there's failure in connecting (from console)

colorpicker2.js:565 connecting ws://127.0.0.1:8000/render-status/ reconnecting-websocket.min.js:1 uncaught domexception: failed execute 'send' on 'websocket': still in connecting state.     @ a.send (http://127.0.0.1:8000/static/js/reconnecting-websocket.min.js:1:2611)     @ htmldocument.<anonymous> (http://127.0.0.1:8000/static/js/colorpicker2.js:584:11)     @ k (http://127.0.0.1:8000/static/js/jquery.js:15:16962)     @ object.firewith [as resolvewith] (http://127.0.0.1:8000/static/js/jquery.js:15:17720)     @ function.ready (http://127.0.0.1:8000/static/js/jquery.js:15:12435)     @ htmldocument.d (http://127.0.0.1:8000/static/js/jquery.js:15:9840) send @ reconnecting-websocket.min.js:1 (anonymous) @ colorpicker2.js:584 k @ jquery.js:15 firewith @ jquery.js:15 ready @ jquery.js:15 d @ jquery.js:15 reconnecting-websocket.min.js:1 websocket connection 'ws://127.0.0.1:8000/render-status/' failed: error during websocket handshake: unexpected response code: 404 open @ reconnecting-websocket.min.js:1 @ reconnecting-websocket.min.js:1 (anonymous) @ colorpicker2.js:566 k @ jquery.js:15 firewith @ jquery.js:15 ready @ jquery.js:15 d @ jquery.js:15 22reconnecting-websocket.min.js:1 websocket connection 'ws://127.0.0.1:8000/render-status/' failed: error during websocket handshake: unexpected response code: 404 open @ reconnecting-websocket.min.js:1 (anonymous) @ reconnecting-websocket.min.js:1

i've checked documentation https://channels.readthedocs.io/en/stable/routing.html sure how set path.

your routing correct, sending message soon, while socket still trying connect. use onopen callback ensure message sent after connection established:

socket.onopen = function() {     var message = {         action: "incomplete",         job_name: "10",     };     socket.send(json.stringify(message)); }




wiki

Comments

Post a Comment

Popular posts from this blog

python - Read npy file directly from S3 StreamingBody -

-
i have many .npy (numpy) , .json files saved in s3, need download , load these files. for json files downloading files , loading dictionary using following code: obj = s3.object(bucket, key) response = obj.get() body = response['body'].read().decode('utf-8') data = json.loads(body) that way avoid writing .json file disk , reading it. now want same .npy files, equivalent? currently downloading file, saving temp file on disk , loading np.load avoid if possible. following https://stackoverflow.com/a/28196540/3509999 : obj = s3.object(bucket, key) io.bytesio(obj.get()["body"].read()) f: # rewind file f.seek(0) arr = np.load(f) wiki
Read more

kotlin - Out-projected type in generic interface prohibits the use of metod with generic parameter -

-
i start using kotlin , defined interface this: interface aadapter<vh : recyclerview.viewholder> { fun oncreateaviewholder(parent: viewgroup): vh fun onbindaviewholder(v: vh, position: int) } and when try use on code: class klasa ( private val adapter: aadapter<*> ) { fun dosth(){ //... val vh = this.adapter.oncreateaviewholder(parent) //on below line error adapter.onbindaviewholder(v, position) //... } } i error out-projected type 'aadapter<*>' prohibits use of 'public abstract fun onbindaviewholder(v: t, position: int): unit i tied add "in" or "out" definition i'm confused. how allow it. replace aadapter<*> aadapter<recyclerview.viewholder> . class klasa ( private val adapter: aadapter<recyclerview.viewholder> ) { // ... because have declared aadapter has type parameter vh type subclass of recyclerview....
Read more

Asterisk AGI Python Script to Dialplan does not work -

-
i'm stuck project have check database of sip extension incoming caller id , dial sip extension. below receive when run script on asterisk cli. -- registered sip '9125' @ 192.168.1.102:50142 > saved useragent "zoiper rv2.8.40" peer 9125 [2017-08-22 13:53:33] notice[5095]: chan_sip.c:24558 handle_response_peerpoke: peer '9125' reachable. (17ms / 2000ms) == using sip rtp tos bits 184 == using sip rtp cos mark 5 -- executing [0112617769@from-trunk:1] answer("sip/obitrunk1-0000000d", "") in new stack > 0x1ca50d0 -- probation passed - setting rtp source address 192.168.1.98:16834 -- executing [0112617769@from-trunk:2] agi("sip/obitrunk1-0000000d", "test.py") in new stack -- launched agi script /var/lib/asterisk/agi-bin/test.py args: ['/var/lib/asterisk/agi-bin/test.py'] env line: agi_request: test.py env line: agi_channel: sip/obitrunk1-0000000d env line: agi_language: en env line: a...
Read more