fix: negative available balance (#187)

darwinia-network · Jun 2, 2022 · 36b337e · 36b337e
1 parent d930c10
commit 36b337e
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/src/config/network/crab.ts b/src/config/network/crab.ts
@@ -27,7 +27,7 @@ export const crabConfig: DVMChainConfig = {
   name: 'crab',
   provider: {
     etherscan: '',
-    rpc: 'wss://darwinia-crab.api.onfinality.io/public-ws',
+    rpc: 'wss://crab-rpc.darwinia.network',
   },
   type: ['polkadot', 'darwinia'],
   ss58Prefix: 42,

diff --git a/src/utils/token/tokenInfo.ts b/src/utils/token/tokenInfo.ts
@@ -51,7 +51,10 @@ export async function getDarwiniaBalances(api: ApiPromise, account = ''): Promis
       maxKtonLock = calcMax(item, maxKtonLock);
     });
 
-    return [free.sub(maxLock).toString(), freeKton.sub(maxKtonLock).toString()];
+    const ring = free.sub(maxLock);
+    const kton = freeKton.sub(maxKtonLock);
+
+    return [ring.isNeg() ? BN_ZERO.toString() : ring.toString(), kton.isNeg() ? BN_ZERO.toString() : kton.toString()];
   } catch (err) {
     console.error(err);
     return ['0', '0'];