fix: cardano decimals

dcSpark · Sep 19, 2023 · f209833 · f209833
1 parent dfc4a91
commit f209833
Show file tree

Hide file tree

Showing 2 changed files with 47 additions and 3 deletions.
diff --git a/packages/milkomeda-wsc/src/CardanoPendingManger.ts b/packages/milkomeda-wsc/src/CardanoPendingManger.ts
@@ -159,6 +159,27 @@ export interface MempoolTx {
   }>;
 }
 
+export type CardanoAssetDetail = {
+  asset: string;
+  policy_id: string;
+  asset_name: string;
+  fingerprint: string;
+  quantity: string;
+  initial_mint_tx_hash: string;
+  mint_or_burn_count: number;
+  onchain_metadata: null;
+  onchain_metadata_standard: null;
+  onchain_metadata_extra: null;
+  metadata?: {
+    name: string;
+    description: string;
+    ticker: string;
+    url: string;
+    logo: string;
+    decimals: number;
+  };
+};
+
 class CardanoPendingManager extends PendingManager implements IPendingManager {
   blockfrost: Blockfrost;
 
@@ -359,6 +380,20 @@ class CardanoPendingManager extends PendingManager implements IPendingManager {
     const tx: MempoolTx = await response.json();
     return tx;
   }
+
+  async fetchCardanoAssetDetails(assetId: string): Promise<CardanoAssetDetail> {
+    const url = this.blockfrost.url + "/assets/" + assetId;
+    const response = await fetch(url, {
+      headers: {
+        project_id: this.blockfrost.projectId,
+      },
+    });
+    if (!response.ok) {
+      throw new Error(`HTTP error! status: ${response.status}`);
+    }
+    const tokenInfo = await response.json();
+    return tokenInfo;
+  }
 }
 
 export default CardanoPendingManager;
diff --git a/packages/milkomeda-wsc/src/wscLib.ts b/packages/milkomeda-wsc/src/wscLib.ts
@@ -366,6 +366,16 @@ export class WSCLib {
     const stargateObj: ADAStargateApiResponse = await response.json();
     const assets = stargateObj.assets;
 
+    const userL1Address = await this.origin_getAddress();
+    const evmAddress = await this.eth_getAccount();
+    const pendingMngr = new CardanoPendingManager(
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      this.blockfrost!,
+      this.network,
+      userL1Address,
+      evmAddress
+    );
+
     for (const asset of assets) {
       asset.fingerprint = await getFingerprintFromBridge(asset.idCardano);
     }
@@ -380,9 +390,8 @@ export class WSCLib {
       token.fingerprint = await getFingerprintFromBlockfrost(token.unit);
       token.assetName = await assetNameFromBlockfrostId(token.unit);
       token.bridgeAllowed = assets.some((asset) => token.fingerprint === asset.fingerprint);
-      token.decimals = assets.filter(
-        (asset) => token.fingerprint === asset.fingerprint
-      )[0]?.milkomedaDecimals;
+      token.decimals =
+        (await pendingMngr.fetchCardanoAssetDetails(token.unit)).metadata?.decimals ?? 0;
     }
 
     return tokens;