next-auth/src/providers/twitch.ts

Authentication for Next.js

import type { OAuthConfig, OAuthUserConfig } from "."

export interface TwitchProfile extends Record<string, any> {
  sub: string
  preferred_username: string
  email: string
  picture: string
}

export default function Twitch<P extends TwitchProfile>(
  options: OAuthUserConfig<P>
): OAuthConfig<P> {
  return {
    wellKnown: "https://id.twitch.tv/oauth2/.well-known/openid-configuration",
    id: "twitch",
    name: "Twitch",
    type: "oauth",
    authorization: {
      params: {
        scope: "openid user:read:email",
        claims: {
          id_token: {
            email: null,
            picture: null,
            preferred_username: null,
          },
        },
      },
    },
    idToken: true,
    profile(profile) {
      return {
        id: profile.sub,
        name: profile.preferred_username,
        email: profile.email,
        image: profile.picture,
      }
    },
    style: { logo: "/twitch.svg", bg: "#65459B", text: "#fff" },
    options,
  }
}