Skip to content
Migrating from NextAuth.js v4? Read our migration guide.
Guides
Supporting Corporate Proxies

Supporting corporate proxies

Auth.js libraries use the fetch API to communicate with OAuth providers. If your organization uses a corporate proxy, you may need to configure the fetch API to use the proxy.

Using a custom fetch function

You can provide a custom fetch function by passing it as an option to the provider.

Here, we use the undici library to make requests through a proxy server, by passing a dispatcher to the fetch implementation by undici.

auth.ts
import NextAuth, { customFetch } from "next-auth"
import GitHub from "next-auth/providers/github"
import { ProxyAgent, fetch as undici } from "undici"
 
const dispatcher = new ProxyAgent("my.proxy.server")
function proxy(...args: Parameters<typeof fetch>): ReturnType<typeof fetch> {
  // @ts-expect-error `undici` has a `duplex` option
  return undici(args[0], { ...args[1], dispatcher })
}
 
export const { handlers, auth } = NextAuth({
  providers: [GitHub({ [customFetch]: proxy })],
})

Resources

Auth.js © Balázs Orbán and Team - 2024