fix: issue with USDC hardcoded (#362)

* fix: issue with USDC hardcoded

* fix: calculate correctly symbol and price

Author: eruizgar91

package.json

@@ -1,6 +1,6 @@
 {
   "name": "node-ts",
-  "version": "3.0.19",
+  "version": "3.0.20",
   "description": "Nevermined Node",
   "main": "main.ts",
   "scripts": {
@@ -131,5 +131,6 @@
     ]
   },
   "author": "Nevermined",
-  "license": "Apache-2.0"
+  "license": "Apache-2.0",
+  "packageManager": "[email protected]+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
 }

src/access/access.controller.ts

@@ -48,6 +48,7 @@ import { AssetResult, NeverminedService } from '../shared/nevermined/nvm.service
 import { TransferDto } from './dto/transfer'
 import { UploadDto } from './dto/upload'
 import { UploadResult } from './dto/upload-result'
+import { formatUnits } from 'viem'
 
 export enum UploadBackends {
   IPFS = 'ipfs',
@@ -254,14 +255,31 @@ export class AccessController {
       if (!this.backendService.isBackendEnabled()) {
         Logger.log(`NVM Backend not enabled, skipping tracking transaction in the database`)
       } else {
-        const assetPrice = this.nvmService.getAssetPrice(service) / 10n ** BigInt(4)
+        const assetPrice = this.nvmService.getAssetPrice(service).getTotalPrice()
+        const erc20TokenAddress =
+          this.nvmService.getAssetPrice(service)?.getTokenAddress() ||
+          this.nvmService.getNevermined().utils.token.getAddress()
+
+        let currency: string
+        let decimals: number
+        if (erc20TokenAddress === ZeroAddress) {
+          currency = 'ETH'
+          decimals = 18
+        } else {
+          const erc20 = await this.nvmService.getNevermined().contracts.loadErc20(erc20TokenAddress)
+          currency = await erc20.symbol()
+          decimals = await erc20.decimals()
+        }
+
+        const priceHighestDenomination = +formatUnits(assetPrice, decimals)
+
         const assetTx: AssetTransaction = {
           assetDid: did.getDid(),
           assetOwner: subscriptionDDO.proof.creator,
           assetConsumer: transferData.nftReceiver,
           txType: 'Mint',
-          price: (Number(assetPrice) / 100).toString(),
-          currency: 'USDC',
+          price: priceHighestDenomination.toString(),
+          currency: currency,
           paymentType: 'Crypto',
           txHash: JSON.stringify(txs),
           metadata: '',

src/shared/nevermined/nvm.service.ts

@@ -9,6 +9,7 @@ import {
   StreamableFile,
 } from '@nestjs/common'
 import {
+  AssetPrice,
   DDO,
   DDOError,
   DDOServiceNotFoundError,
@@ -472,10 +473,10 @@ export class NeverminedService {
     return Number(duration) || 0
   }
 
-  public getAssetPrice(service: ServiceCommon): bigint {
+  public getAssetPrice(service: ServiceCommon): AssetPrice {
     const assetPrice = DDO.getAssetPriceFromService(service)
 
-    if (assetPrice) return assetPrice.getTotalPrice()
+    if (assetPrice) return assetPrice
     throw new DDOError(`No price found for asset ${service.index}`)
   }