Function initInstagramAuth

initInstagramAuth(
    props: InitInstagramAuthOptions,
): {
    GET: (req: NextRequest) => Promise<NextResponse<unknown>>;
    getRefreshedAccessToken: (token: string) => Promise<string | undefined>;
}
Initializes Instagram OAuth. Returns a GET handler for the OAuth callback and a helper to refresh long-lived tokens.

Mount the GET handler on your Instagram auth route (e.g. app/api/(auth)/instagram/route.ts).

Requires env vars: INSTAGRAM_CLIENT_ID, INSTAGRAM_CLIENT_SECRET, NEXT_PUBLIC_INSTAGRAM_AUTH_ENDPOINT.
Parameters
- props: InitInstagramAuthOptions
  Options. See InitInstagramAuthOptions.
Returns {
GET: (req: NextRequest) => Promise<NextResponse<unknown>>;
getRefreshedAccessToken: (token: string) => Promise<string | undefined>;
}
Object with GET (route handler) and getRefreshedAccessToken (refreshes a long-lived token).
- GET: (req: NextRequest) => Promise<NextResponse<unknown>>
- getRefreshedAccessToken: (token: string) => Promise<string | undefined>
Example
```
// app/api/(auth)/instagram/route.ts
import { initInstagramAuth } from "naystack/auth";

export const { GET, getRefreshedAccessToken } = initInstagramAuth({
  onUser: async (igUser, appUserId, accessToken) => {
    await saveInstagramUser(appUserId, igUser, accessToken);
  },
  successRedirectURL: "/dashboard",
  errorRedirectURL: "/login",
  refreshKey: process.env.REFRESH_KEY!,
});
```
- Defined in auth/instagram/index.ts:53