fix: add script to substitute envs in /src code

README.md

@@ -52,6 +52,10 @@ It will stop indexing the old code, and start the new one in its place.
 
 ### filling .env
 
-There are contract addresses in `.env.exmaple` that must be chosen
-based on the network. Put them into a `.env` for proper usage
+The subgraph can't load a `.env` by itself because all handlers are compiled and stored in IPFS.
+In this scenario, the environment variables have to be already loaded in the code itself. A script in the
+root called `replace-env.js` is provided and used in the scripts to handle this problem. 
+
 
+There are contract addresses in `.env.exmaple` that must be chosen
+based on the network. Put them into a `.env` for proper usage.

package.json

@@ -6,10 +6,10 @@
   },
   "scripts": {
     "codegen": "graph codegen",
-    "build": "graph build",
+    "build": "node replace-env.js && graph build",
     "prepare:sepolia": "mustache config/sepolia.json subgraph.template.yaml > subgraph.yaml",
     "prepare:arb-sepolia": "mustache config/arb-sepolia.json subgraph.template.yaml > subgraph.yaml",
-    "deploy": "graph deploy --node https://api.studio.thegraph.com/deploy/ tap-v2",
+    "deploy": "node replace-env && graph deploy --node https://api.studio.thegraph.com/deploy/ tap-v2",
     "create-local": "graph create --node http://localhost:8020/ tap-v2",
     "remove-local": "graph remove --node http://localhost:8020/ tap-v2",
     "deploy-local": "graph deploy --node http://localhost:8020/ --ipfs http://localhost:5001 tap-v2",

replace-env.js

@@ -0,0 +1,11 @@
+const fs = require('fs');
+const path = require('path');
+require('dotenv').config();
+
+const filePath = path.resolve(__dirname, './src/tap-utils.ts');
+let fileContent = fs.readFileSync(filePath, 'utf8');
+
+fileContent = fileContent.replace(/{COLLECTOR_ADDRESS}/g, process.env.COLLECTOR_ADDRESS);
+
+fs.writeFileSync(filePath, fileContent);
+console.log('Environment variables replaced in mapping files.');

src/tap-utils.ts

@@ -11,8 +11,7 @@ import {
 const ZERO_BI = BigInt.fromI32(0)
 const ZERO_AD = Address.zero()
 
-
-export const TAP_COLLECTOR = Address.fromString(String(process.env.COLLECTOR_ADDRESS));
+export const TAP_COLLECTOR = Address.fromString("{COLLECTOR_ADDRESS}");
 
 export function createOrLoadPayer(id: Bytes): Payer {
     let payer = Payer.load(id)
@@ -99,4 +98,4 @@ export function createOrLoadDataService(id: Bytes): DataService {
         dataService.save()
     }
     return dataService as DataService
-}
+}

yarn.lock

@@ -1358,6 +1358,11 @@ [email protected]:
     docker-modem "^1.0.8"
     tar-fs "~1.16.3"
 
+dotenv@^16.4.5:
+  version "16.4.7"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-16.4.7.tgz#0e20c5b82950140aa99be360a8a5f52335f53c26"
+  integrity sha512-47qPchRCykZC03FhkYAhrvwU4xDBFIj1QPqaarj6mdM/hgUzfPHcpkHJOn3mJAufFeeAxAzeGsr5X0M4k6fLZQ==
+
 [email protected]:
   version "3.1.8"
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-3.1.8.tgz#758d32910c78047585c7ef1f92f9ee041c1c190b"