fix: do not use CHAIN_N_RPC_URL in prividium mode

Author: JackHamer09

packages/auth-server-api/.env.example

@@ -19,7 +19,7 @@ RPC_URL=http://127.0.0.1:8545
 #
 # Required per chain:
 #   CHAIN_N_ID              - Chain ID (positive integer)
-#   CHAIN_N_RPC_URL         - RPC endpoint URL
+#   CHAIN_N_RPC_URL         - RPC endpoint URL (optional in Prividium mode)
 #
 # Optional per chain:
 #   CHAIN_N_BASE_TOKEN_DECIMALS - Native token decimals (defaults to 18)
@@ -41,10 +41,9 @@ RATE_LIMIT_DEPLOY_WINDOW_MS=3600000 # 1 hour
 # SESSION_VALIDATOR_ADDRESS=0x...
 
 # Prividium Mode Configuration (OPTIONAL)
-# When enabled, requires user authentication via Prividium and routes deployments through Prividium RPC proxy
+# When enabled, requires user authentication via Prividium and uses the Prividium SDK for RPC and auth
 # PRIVIDIUM_MODE=true
-# PRIVIDIUM_RPC_PROXY_BASE_URL=https://rpc.prividium.io
-# PRIVIDIUM_PERMISSIONS_BASE_URL=https://permissions.prividium.io
+# PRIVIDIUM_API_URL=https://api.prividium.io
 # PRIVIDIUM_ADMIN_PRIVATE_KEY=0x...  # Private key of a user with 'admin' role in Prividium
 # PRIVIDIUM_TEMPLATE_KEY=sso-smart-account  # Template key for whitelisting deployed contracts
 # SSO_AUTH_SERVER_BASE_URL=https://sso.example.com  # Base URL of the SSO auth server frontend (used as SIWE domain for admin authorization)

packages/auth-server-api/src/config.ts

@@ -118,7 +118,8 @@ function parseSupportedChains(): Chain[] {
     const rpcUrl = process.env[`CHAIN_${chainIndex}_RPC_URL`];
     const decimalsStr = process.env[`CHAIN_${chainIndex}_BASE_TOKEN_DECIMALS`];
 
-    if (!rpcUrl) {
+    // RPC URL is required in non-prividium mode (prividium uses SDK transport)
+    if (!rpcUrl && !env.PRIVIDIUM_MODE) {
       console.error(`CHAIN_${chainIndex}_RPC_URL is required but not provided`);
       process.exit(1);
     }
@@ -140,12 +141,14 @@ function parseSupportedChains(): Chain[] {
       }
     }
 
-    // Validate RPC URL format
-    try {
-      new URL(rpcUrl);
-    } catch {
-      console.error(`CHAIN_${chainIndex}_RPC_URL is not a valid URL: ${rpcUrl}`);
-      process.exit(1);
+    // Validate RPC URL format if provided
+    if (rpcUrl) {
+      try {
+        new URL(rpcUrl);
+      } catch {
+        console.error(`CHAIN_${chainIndex}_RPC_URL is not a valid URL: ${rpcUrl}`);
+        process.exit(1);
+      }
     }
 
     // Create chain with defaults for name and currency
@@ -159,7 +162,7 @@ function parseSupportedChains(): Chain[] {
       },
       rpcUrls: {
         default: {
-          http: [rpcUrl],
+          http: rpcUrl ? [rpcUrl] : [],
         },
       },
     });