Combine firebase auth user with supabase profile endpoint
Auth plus extended profile in one mobile call
To combine firebase auth user with supabase profile endpoint, use one RealComposer pipeline with parallel steps. Firebase ID token lookup and Supabase profile row merged at edge. Your React / Flutter / Mobile app makes one request instead of several sequential upstream calls.
Why Combine firebase auth user with supabase profile endpoint is hard without an edge proxy
Calling Firebase and Supabase directly from React / Flutter / Mobile risks leaked secrets, CORS blocks, or oversized JSON that slows rendering.
- Exposed API keys in React / Flutter / Mobile bundles or DevTools
- Sequential upstream calls on slow mobile networks
- Third-party rate limits and surprise billing spikes
How RealComposer Solves This at the Edge
Store credentials in Secret Vault
Save FIREBASE_API_KEY, SUPABASE_ANON_KEY in RealComposer.
Configure edge pipeline
Add upstream steps with vault header injection and map the response fields your client needs.
Call from React / Flutter / Mobile
Use your workspace edge URL with a restricted client token.
const res = await fetch('https://realcomposer.com/v1/workspace/combine-firebase-auth-with-supabase-profile', {
headers: { Authorization: 'Bearer rc_live_client_token' }
});
const data = await res.json();
{
"status": 200,
"debug_trace": "trace_batch2",
"data": {
"id": "obj_batch2",
"status": "active",
"audit_logs": [
{
"action": "fetch",
"timestamp": 1714589200
}
],
"internal_metadata": {
"cluster": "edge"
},
"result": {
"name": "Sample",
"tags": [
"batch2"
]
}
}
}
{
"id": "obj_batch2",
"status": "active",
"result": {
"name": "Sample",
"tags": [
"batch2"
]
}
}
curl -X GET "https://realcomposer.com/v1/workspace/combine-firebase-auth-with-supabase-profile" \ -H "Authorization: Bearer rc_live_client_token"
Developer Questions & Troubleshooting
Is it safe to call Firebase from React / Flutter / Mobile?
Only if secrets stay off the device. RealComposer injects credentials on the server edge so clients never hold production keys.
Does RealComposer add latency?
Cloudflare edge execution adds a few milliseconds; caching can answer repeat calls in under 10ms.
Deploy this React / Flutter / Mobile + Firebase, Supabase Recipe
Clone this pre-configured pipeline into your RealComposer workspace in one click. We pre-populate upstream URLs, headers, and mapping rules.