fix: preserve old info from the previous registry (#73)

Author: TarikGul

package.json

@@ -9,7 +9,7 @@
   },
   "scripts": {
     "build": "substrate-exec-rimraf build/ && substrate-exec-tsc",
-    "start": "yarn build && node ./build/createRegistry.js",
+    "start": "yarn build && node ./build/src/createRegistry.js",
     "lint": "substrate-dev-run-lint",
     "lint:fix": "substrate-dev-run-lint --fix",
     "deploy": "yarn build && npm publish"

src/createRegistry.ts

@@ -20,8 +20,10 @@ import {
 import type { EndpointOption } from '@polkadot/apps-config/endpoints/types';
 import fetch from 'node-fetch';
 
+import FinalRegistry from '../registry.json';
 import type {
 	AssetsInfo,
+	ChainInfoKeys,
 	ChainName,
 	ForeignAssetMetadata,
 	ForeignAssetsInfo,
@@ -119,6 +121,12 @@ const createChainRegistryFromParas = async (
 			endpoint.paraId as number
 		);
 		if (!reliable) {
+			// Add to registry if it exists
+			if (FinalRegistry[chainName][endpoint.paraId as number]) {
+				registry[chainName][`${endpoint.paraId as number}`] = FinalRegistry[
+					chainName
+				][endpoint.paraId as number] as ChainInfoKeys;
+			}
 			continue;
 		}
 		const res = await fetchChainInfo(endpoint);

src/types.ts

@@ -9,14 +9,17 @@ export type TokenRegistry = {
 	rococo: ChainInfo;
 };
 
+export type ChainInfoKeys = {
+	tokens: string[];
+	assetsInfo: AssetsInfo;
+	specName: string;
+	foreignAssetsInfo: ForeignAssetsInfo;
+	poolPairsInfo: PoolPairsInfo;
+	xcAssetsData?: SanitizedXcAssetsData[];
+};
+
 export type ChainInfo = {
-	[key: string]: {
-		assetsInfo: AssetsInfo;
-		specName: string;
-		foreignAssetsInfo: ForeignAssetsInfo;
-		poolPairsInfo: PoolPairsInfo;
-		xcAssetsData?: SanitizedXcAssetsData[];
-	};
+	[key: string]: ChainInfoKeys;
 };
 
 export type PoolPairsInfo = {