feat: add environment configuration schema for subgraph

Author: gfournierPro

packages/subgraph/.env.template

@@ -1,20 +1,11 @@
-# environment to use for configuration (prod/staging)
-ENV=prod
+# The name of the network (e.g., mainnet, arbitrum, etc.)
+NETWORK_NAME=...
 
-# override the starting block for indexation of all contracts events
-# START_BLOCK=0
+# The URL of the Graph Node endpoint for self-hosted Graph Node
+GRAPHNODE_URL=...
 
-# AppRegistry contract address override
-# APP_REGISTRY_ADDRESS=0x...
+# The URL of the IPFS endpoint for self-hosted IPFS
+IPFS_URL=...
 
-# DatasetRegistry contract address override
-# DATASET_REGISTRY_ADDRESS=0x...
-
-# Dataprotector contract address override
-# DATAPROTECTOR_ADDRESS=0x...
-
-# DataprotectorSharing contract address override
-# DATAPROTECTOR_SHARING_ADDRESS=0x...
-
-# AddOnlyAppWhitelistRegistry contract address override
-# ADD_ONLY_APP_WHITELIST_REGISTRY_ADDRESS=0x...
+# The version label for the deployment (e.g., v1.0.0)
+VERSION_LABEL=...

packages/subgraph/config/env.ts

@@ -0,0 +1,17 @@
+import 'dotenv/config';
+import { z } from 'zod';
+
+const envSchema = z.object({
+    NETWORK_NAME: z.string().min(1, 'NETWORK_NAME is required').default('bellecour'),
+
+    GRAPHNODE_URL: z
+        .string()
+        .url('GRAPHNODE_URL must be a valid URL')
+        .default('http://localhost:8020'),
+
+    IPFS_URL: z.string().url('IPFS_URL must be a valid URL').default('http://localhost:5001'),
+
+    VERSION_LABEL: z.string().min(1, 'VERSION_LABEL is required').default('bellecour/poco-v5'),
+});
+
+export const env = envSchema.parse(process.env);