From c8b4828eb94dc8fb1741097634d628886e0be6ed Mon Sep 17 00:00:00 2001
From: FabijanC <fabijan.corak@gmail.com>
Date: Fri, 26 Feb 2021 16:14:52 +0100
Subject: [PATCH] Use import with chains json files (fix #406)

---
 services/core/src/utils/utils.ts | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/services/core/src/utils/utils.ts b/services/core/src/utils/utils.ts
index 9b8743184..9c274bff8 100644
--- a/services/core/src/utils/utils.ts
+++ b/services/core/src/utils/utils.ts
@@ -1,12 +1,8 @@
-import fs from 'fs';
 import cbor from 'cbor';
-import { join as pathJoin } from 'path';
-
-function customRead(fileName: string): any {
-    const path = pathJoin(__dirname, "..", "..", "src", fileName);
-    const file = fs.readFileSync(path).toString();
-    return JSON.parse(file);
-}
+import * as chainsRaw from "../chains.json";
+import * as sourcifyChainsRaw from "../sourcify-chains.json";
+const chains = chainsRaw as any;
+const sourcifyChains = sourcifyChainsRaw as any;
 
 type Currency = {
     name: string,
@@ -32,8 +28,8 @@ type ChainMap = {
 };
 
 const chainMap: ChainMap = {};
-const sourcifyChains = customRead("sourcify-chains.json");
-for (const chain of customRead("chains.json")) {
+for (const i in chains) {
+    const chain = chains[i];
     const chainId = chain.chainId;
     if (chainId in chainMap) {
         const err = `Corrupt chains file (chains.json): multiple chains have the same chainId: ${chainId}`;