fix(providers): convert Strava Provider to TS (#5241)

* update strava

* add localhost fallback

* lint & small updates

* Update docs/versioned_docs/version-v3/providers/strava.md

Co-authored-by: Lluis Agusti <hi@llu.lu>

* fix

* Delete yarn.lock

* Apply suggestions from code review

Co-authored-by: Lluis Agusti <hi@llu.lu>
Co-authored-by: Balázs Orbán <info@balazsorban.com>

docs/versioned_docs/version-v3/providers/strava.md

@@ -13,7 +13,7 @@ The **Strava Provider** comes with a set of default options:
 
 - [Strava Provider options](https://github.com/nextauthjs/next-auth/blob/main/src/providers/strava.js)
 
-You can override any of the options to suit your own use case.
+You can override any of the options to suit your own use case. Ensure the `redirect_uri` configuration fits your needs accordingly. 
 
 ## Example
 

packages/next-auth/src/providers/strava.js → packages/next-auth/src/providers/strava.ts

@@ -1,5 +1,15 @@
-/** @type {import(".").OAuthProvider} */
-export default function Strava(options) {
+import type { OAuthConfig, OAuthUserConfig } from "."
+
+export interface StravaProfile extends Record<string, any> {
+  id: string // this is really a number
+  firstname: string
+  lastname: string
+  profile: string
+}
+
+export default function Strava<P extends StravaProfile>(
+  options: OAuthUserConfig<P>
+): OAuthConfig<P> {
   return {
     id: "strava",
     name: "Strava",
@@ -10,7 +20,6 @@ export default function Strava(options) {
         scope: "read",
         approval_prompt: "auto",
         response_type: "code",
-        redirect_uri: "http://localhost:3000/api/auth/callback/strava",
       },
     },
     token: {
@@ -20,11 +29,10 @@ export default function Strava(options) {
     client: {
       token_endpoint_auth_method: "client_secret_post",
     },
-
     profile(profile) {
       return {
         id: profile.id,
-        name: profile.firstname,
+        name: `${profile.firstname} ${profile.lastname}`,
         email: null,
         image: profile.profile,
       }