Supabase User Impersonation Edge Function

index.ts

import "jsr:@supabase/functions-js/edge-runtime.d.ts";
import { createClient } from "jsr:@supabase/supabase-js@2";

Deno.serve(async (req)=>{
  if (req.method === 'OPTIONS') {
    return new Response('ok', {
      headers: {
        'Access-Control-Allow-Origin': '*',
        'Access-Control-Allow-Methods': 'POST, OPTIONS',
        'Access-Control-Allow-Headers': 'Authorization, Content-Type'
      }
    });
  }
  try {
    const { email } = await req.json(); 
    const serviceRoleKey = Deno.env.get('SUPABASE_SERVICE_ROLE_KEY');
    const supabaseAdminClient = createClient(Deno.env.get('SUPABASE_URL'), serviceRoleKey);
    const { data, error } = await supabaseAdminClient.auth.admin.generateLink({
      type: 'magiclink',
      email: email
    });
    
    const { data: verify, error: verifyError } = await supabaseAdminClient.auth.verifyOtp({
      token_hash: data['properties']['hashed_token'],
      type: 'email'
    });

    // Optionally you can set the session here and call the endpoint you like from this function
    //   const { data, error } = await supabase.auth.setSession({
    //   access_token,
    //   refresh_token
    // })
    return new Response(JSON.stringify(verify), {
      headers: {
        'Content-Type': 'application/json',
        'Connection': 'keep-alive'
      }
    });
  } catch (error) {
    return new Response(JSON.stringify({
      error: error.message
    }), {
      headers: {
        'Content-Type': 'application/json'
      },
      status: 400
    });
  }
});