Add headers to @aspnet/signalr Javascript client

Question

I'm using @aspnet/signalr Official Javascript client from This npm package

I wondering if there is the way to add Header configuration to the client connection header

How I build the connection

let connection = new signalR.HubConnectionBuilder() .withUrl( "https://some.signalr-host.com" ) .build();

Answer 1

The definition for IHttpConnectionOptions got a headers property in early 2020. (It's not visible on the documentation website, but is in the Typescript definition files.) You can now do as follows:

const connection = new signalR.HubConnectionBuilder()
  .withUrl("https://some.signalr-host.com", {
       headers: {"foo": "bar"}
   })
  .build();