fix: add dotenv and zod to package.json and package-lock.json; create env.ts for environment variable validation

Author: Le-Caignec

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);

package-lock.json

@@ -10,7 +10,7 @@
     "build": "rm -rf generated && rm -rf build && npm run generate:typechain && graph codegen && graph build --network ${NETWORK_NAME:-bellecour}",
     "test": "npm run test:unit && npm run test:e2e",
     "test:unit": "graph test",
-    "test:e2e": "NETWORK_NAME=${NETWORK_NAME:-bellecour} mocha",
+    "test:e2e": "mocha",
     "coverage": "graph test -- -c",
     "create": "graph create ${NETWORK_NAME:-bellecour}/poco --node ${GRAPHNODE_URL:-http://localhost:8020}",
     "deploy": "graph deploy ${NETWORK_NAME:-bellecour}/poco --node ${GRAPHNODE_URL:-http://localhost:8020} --ipfs ${IPFS_URL:-http://localhost:5001} --version-label ${VERSION_LABEL:-bellecour/poco-v5}",
@@ -39,6 +39,7 @@
     "@graphprotocol/graph-ts": "^0.38.0",
     "@typechain/ethers-v6": "^0.5.1",
     "@types/mocha": "^10.0.9",
+    "dotenv": "^16.5.0",
     "ethers": "^6.13.5",
     "husky": "^9.1.6",
     "lint-staged": "^15.2.10",
@@ -48,7 +49,8 @@
     "prettier-plugin-organize-imports": "^4.1.0",
     "testcontainers": "^10.13.2",
     "ts-node": "^10.9.2",
-    "tsx": "^4.19.3"
+    "tsx": "^4.19.3",
+    "zod": "^3.24.3"
   },
   "dependencies": {
     "@iexec/poco": "^5.5.0",

package.json

@@ -2,15 +2,16 @@ import { InMemoryCache } from '@apollo/client/cache';
 import { ApolloClient, gql } from '@apollo/client/core';
 import { equal } from 'assert';
 import { JsonRpcProvider, Wallet, ZeroHash } from 'ethers';
+import { env } from '../../config/env';
 import { AppRegistry__factory, IexecInterfaceToken__factory } from '../../generated/typechain';
 import config from '../../networks.json' with { type: 'json' };
 
-const APIURL = `http://localhost:8000/subgraphs/name/${process.env.NETWORK_NAME}/poco`;
+const APIURL = `http://localhost:8000/subgraphs/name/${env.NETWORK_NAME}/poco`;
 const client = new ApolloClient({
     uri: APIURL,
     cache: new InMemoryCache(),
 });
-const networkName = process.env.NETWORK_NAME!;
+const networkName = env.NETWORK_NAME!;
 const iexecProxyAddress = (config as any)[networkName].ERC1538.address;
 
 describe('Integration tests', () => {