Keep backward compatibility on v token price endpoint

src/controllers/TokenStatsController.ts

@@ -66,7 +66,8 @@ export class TokenStatsController extends ControllerBase implements IControllerB
                 const currency = req.query.currency as string | undefined;
                 res.json(await this._priceProvider.getPrice(req.params.symbol, currency));
             } catch (err) {
-                this.handleError(res, err as Error);
+                // For the sake of backward compatibility
+                res.json(0);
             }
         });
 

src/services/CacheService.ts

@@ -10,7 +10,7 @@ export class CacheService<T> {
 
     constructor(private cachedItemValidityTimeMs: number = 60000) {}
 
-    public getItem(key: string): CacheItem<T> | undefined{
+    public getItem(key: string): CacheItem<T> | undefined {
         Guard.ThrowIfUndefined('key', key);
 
         const cacheItem = this.cache.get(key);
@@ -24,7 +24,6 @@ export class CacheService<T> {
 
     public setItem(key: string, item: T): void {
         Guard.ThrowIfUndefined('key', key);
-        Guard.ThrowIfUndefined('item', item);
 
         this.cache.set(key, {
             data: item,

src/services/CoinGeckoPriceProvider.ts

@@ -30,7 +30,7 @@ export class CoinGeckoPriceProvider implements IPriceProvider {
         return 0;
     }
 
-    public async getPriceWithTimestamp(symbol: string, currency: string | undefined): Promise<TokenInfo>{
+    public async getPriceWithTimestamp(symbol: string, currency: string | undefined): Promise<TokenInfo> {
         const price = await this.getPrice(symbol, currency);
 
         return {

src/services/IPriceProvider.ts

@@ -1,8 +1,7 @@
 export type TokenInfo = {
     price: number;
     lastUpdated: number;
-}
-
+};
 
 /**
  * Definition of provider for access token price.