Azure Web PubSub
An Azure service that provides real-time messaging for web applications using WebSockets and the publish-subscribe pattern.
60 questions
1 answer
Azure PubSub group implmentation
I am having issues with my PubSub implementation when attempting to send messages using groups, from what I can tell from the live trace messages are coming in, but not being sent out to clients after. I feel as if my server just doesn't know what to do…
asked 2022-02-23T18:46:31.17+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(48, 87%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAM%3C/text%3E%3C/svg%3E)
Aaron Manill
86
Reputation points
answered 2022-02-25T11:44:15.05+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(185.6, 59%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESM%3C/text%3E%3C/svg%3E)
SnehaAgrawal-MSFT
18,366
Reputation points
2 answers
How i can use Azure Web PubSub multiple instances to work together as one service?
For Azure Web PubSub the Concurrent Connections per Unit is 1,000 and the Max Units is 100 that means the instance max number of Concurrent Connections per Unit is (100*1000=100000). If my app has 200000 Concurrent Connections then, we need tow…
asked 2022-02-17T11:52:11.797+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(262.40000000000003, 33%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EEN%3C/text%3E%3C/svg%3E)
Ebrahim Naef
1
Reputation point
commented 2022-02-25T07:10:46.727+00:00
Liangying Wei
756
Reputation points Microsoft Employee
1 answer
One of the answers was accepted by the question author.
How to resolve: Microsoft.Azure.WebJobs.Host: Exception binding parameter 'data'. Microsoft.Azure.WebJobs.Host: Object reference not set to an instance of an object
I am attempting to locally run my subpub code while testing during development and am running into this error "System.Private.CoreLib: Exception while executing function: Functions.subpub-trigger-message. Microsoft.Azure.WebJobs.Host: Exception…
asked 2022-02-16T23:27:53.193+00:00
Aaron Manill
86
Reputation points
accepted 2022-02-21T18:31:36.663+00:00
Aaron Manill
86
Reputation points
1 answer
One of the answers was accepted by the question author.
Can node JS recieve signalR messages without a frontend?
I am looking to implement an automated printing service where a system running nodeJS can be notified from serverless SignalR that a file can now be retrieved for printing. Is this something that is achievable? From the documentation I've been able to…
asked 2022-02-07T17:34:11.43+00:00
Aaron Manill
86
Reputation points
accepted 2022-02-14T16:19:52.257+00:00
Aaron Manill
86
Reputation points
2 answers
Azure function WebPubSubTrigger never fired
I am learning WebPubSub, and tried an azure function as following [FunctionName("Function1")] public static async Task Run( [WebPubSubTrigger("NewsHub2", WebPubSubEventType.User, "message")] …
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(281.6, 7.000000000000001%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENZ%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
Pubsub message size limit issue
When we are trying to send a large pubsub json message to a group, the pubsub rest api is throwing 500 Internal Error. We are using azure messaging python sdk to send message to a pubsub group. We checked the request content length of the api call and…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(307.2, 21%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3END%3C/text%3E%3C/svg%3E)
2 answers
Azure Function Binding Types - The binding type(s) 'webPubSubTrigger' were not found in the configured extension bundle
I'm trying to trigger an Azure Function when a Web PubSub message is published. According to the example in this article, I should be able to use the following to trigger a function when a new message is sent to a specific hub... { …
asked 2021-12-22T23:32:15.763+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(262.40000000000003, 42%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAJ%3C/text%3E%3C/svg%3E)
Adam Jeffery
1
Reputation point
commented 2022-01-13T06:01:06.113+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(275.2, 33%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMM%3C/text%3E%3C/svg%3E)
MughundhanRaveendran-MSFT
12,421
Reputation points
1 answer
One of the answers was accepted by the question author.
Azure Speech to Text Recognition Integration with Web PubSub
Hi, I have a use case of taking an incoming stream of audio data through a websocket, passing it through Azure Speech-To-Text, getting the text results back and saving them in a database. This part is trivial, however I would like to accomplish this…
asked 2021-11-30T23:16:56.32+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 10%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFR%3C/text%3E%3C/svg%3E)
Francisco Ramos
21
Reputation points
accepted 2021-12-05T04:30:56.09+00:00
Francisco Ramos
21
Reputation points
2 answers
Can Web PubSub server by any Webhook server (not only stateless function)
I have recently integrated the Azure Web PubSub service into our application. Per PubSub examples, I captured the PubSub client connect/disconnect, etc system events with an Azure Function App WebPubSubTriggers provided by…
asked 2021-11-15T08:10:34.93+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(134.4, 61%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGT%3C/text%3E%3C/svg%3E)
Greg Tinney
121
Reputation points
answered 2021-11-30T20:05:30.027+00:00
Greg Tinney
121
Reputation points
0 answers
Pub/sub messaging integration with SharePoint On-premise 2019
Hi I want to implement Pub/sub messaging in SharePoint On-premise 2019 as per customer requirements Here i am not sure how to integrate this functionality to On-premise environment. Could you please any one suggest me Is there any…
asked 2021-11-10T04:48:13.107+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(275.2, 36%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAS%3C/text%3E%3C/svg%3E)
Aare Srinivas Patel
1
Reputation point
commented 2021-11-10T13:00:21.73+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 86%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EYS%3C/text%3E%3C/svg%3E)
Yulin Shi
76
Reputation points Microsoft Employee
1 answer
One of the answers was accepted by the question author.
Is there a limit to the number of connections that can be added to a webpubsub group?
Hello Web PubSub team, Are there any limits on the number of connections that can be added to a webpubsub group? I couldn't find any documentation on this, so just wanted to double-check. …
asked 2021-10-22T15:44:12.197+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(108.80000000000001, 0%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMS%3C/text%3E%3C/svg%3E)
mithun shanbhag
26
Reputation points
accepted 2021-10-26T15:26:01.16+00:00
mithun shanbhag
26
Reputation points
1 answer
One of the answers was accepted by the question author.
How to get connection ID for Web PubSub
I am looking at the C# example for publishing messages here: https://learn.microsoft.com/en-us/azure/azure-web-pubsub/tutorial-pub-sub-messages?tabs=csharp#publish-messages-using-service-sdk The sample uses SendToAllAsync() but I would like to use…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(172.8, 16%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EP%3C/text%3E%3C/svg%3E)
1 answer
Azure web pubsub Throttling limit
As per this thread, There is a limit of 1000 requests per second per unit. 1) Is there any provision to increase this limit 2) Once the limit is reached, are the requests throttled or are they responded with error code? Can you also highlight if there…
asked 2021-10-13T08:36:37.653+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(6.4, 98%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER%3C/text%3E%3C/svg%3E)
Rajshekar
26
Reputation points
answered 2021-10-19T08:05:40.293+00:00
Liangying Wei
756
Reputation points Microsoft Employee
1 answer
One of the answers was accepted by the question author.
Azure webpubsub Limitations
We are doing a POC to use Azure web pubsub for our real-time messaging use case. We will be using the REST API to manage these clients and deliver real-time messages. Have the following questions which we were not able to find in the documentation 1) Are…
1 answer
how to use customer domain name in client access URL for Web PubSub
We are trying to use PubSub to send out the websocket URLs to clients, but we would prefer the URL to use our own custom domain instead of "wss://????..webpubsub.azure.com/client/...". We will have our own service APIs to generate the client…
asked 2021-09-02T16:21:19.643+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(115.19999999999999, 71%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EZF%3C/text%3E%3C/svg%3E)
Zongwen Feng
21
Reputation points
commented 2021-09-16T01:21:33.313+00:00
Zongwen Feng
21
Reputation points
1 answer
Removing access_token from websocket client url
I want to use Azure Web PubSub for TwiML Stream . However they don't support query parameters in the url.. Is there way to get client address of Web PubSub websocket that doesn't have access_token ? Regards
asked 2021-09-01T10:22:10.607+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 31%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPG%3C/text%3E%3C/svg%3E)
Piotr Gardy
1
Reputation point
answered 2021-09-03T06:19:08.817+00:00
Liangying Wei
756
Reputation points Microsoft Employee
1 answer
One of the answers was accepted by the question author.
how to close PubSub connections on demand
Since PubSub has a connection limit count, I want to manage the connections and close the ones that is not needed any more. This is necessary as we can't depend on the client side to close the connection voluntarily. I am ware that through the…
asked 2021-09-01T17:43:56.66+00:00
Zongwen Feng
21
Reputation points
accepted 2021-09-02T03:38:15.933+00:00
Zongwen Feng
21
Reputation points
1 answer
One of the answers was accepted by the question author.
Web PubSub Connect fails when using FWebSocketsModule library and GenerateClientAccessUri in WebPubSub SDK
Hi, I'm trying to implement a WebPubSub client in a video game using UE4 game engine's FWebSocketsModule C++ class, which links with libWebSockets library. When I use a "Client Access URL" from Azure WebPubSub Dashboard's "Client URL…
asked 2021-08-24T18:51:44.573+00:00
Greg Tinney
121
Reputation points
accepted 2021-08-25T20:08:29.247+00:00
Greg Tinney
121
Reputation points
2 answers
User not found returned by Azure web pubsub rest api
We have created the webhooks for /connect and /connected in our server and we get those endpoints called when client connects to pubsub using websocket. We want to add the connected user to be added to certain pubsub groups and we do that in /connected…
4 answers
One of the answers was accepted by the question author.
Missing pubsub messages between client disconnect and reconnect
We are using Azure web pubsub to push events realtime to devices. The client connects to the websocket url and the server pushes event messages to clients through pubsub using azure pubsub python sdk. We found that the pubsub resends unsent event…