polka:

src/services/blockchain/seiService.ts

@@ -22,7 +22,8 @@ const NETWORKS = {
   testnet: {
     chainId: 'atlantic-1',
     rpcUrl: 'https://rpc.wallet.atlantic-2.sei.io',
-    restUrl: 'https://rest.atlantic-2.sei.io',
+    // Updated REST URL to use a more reliable endpoint
+    restUrl: 'https://sei-testnet-api.polkachu.com',
     // Smart contract addresses
     tokenFactoryAddress: process.env.NEXT_PUBLIC_SEI_TOKEN_FACTORY_ADDRESS || '',
   },
@@ -412,59 +413,73 @@ export const getTokenBalance = async (): Promise<number> => {
   // The REST endpoint for Sei testnet
   const restEndpoint = NETWORKS.testnet.restUrl;
   
-  // Create a proper CW20 balance query
+  // Create a proper CW20 balance query for the token contract
   const balanceQuery = {
     balance: { address: currentAddress }
   };
   
-  // Base64 encode the query - ensure it works in browser (we already checked we're in browser above)
-  const queryJson = JSON.stringify(balanceQuery);
-  const base64Query = btoa(queryJson);
-  
-  // Construct the REST API URL
-  const queryUrl = `${restEndpoint}/cosmwasm/wasm/v1/contract/${tokenContractAddress}/smart/${base64Query}`;
+  // Construct the REST API URL for the contract query
+  const queryUrl = `${restEndpoint}/cosmwasm/wasm/v1/contract/${tokenContractAddress}/smart/query`;
   
   console.log(`Querying token balance at: ${queryUrl}`);
+  console.log(`Query data: ${JSON.stringify(balanceQuery)}`);
   
-  // Make the query
-  const response = await fetch(queryUrl);
+  // Make a POST request to the smart contract query endpoint
+  const response = await fetch(queryUrl, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify({
+      query_data: btoa(JSON.stringify(balanceQuery))
+    })
+  });
   
   if (!response.ok) {
-    throw new Error(`RPC query failed with status: ${response.status}`);
+    const errorText = await response.text();
+    console.error(`API request failed with status ${response.status}:`, errorText);
+    throw new Error(`Query failed with status: ${response.status}`);
   }
   
   const data = await response.json();
   
   console.log('Raw response data:', data);
   
-  // Extract the balance from the response - Sei REST API returns different format
-  if (data && data.data) {
-    // Try to extract balance from the response
-    let balanceStr: string | undefined;
-    
-    // Handle different potential response formats
-    if (typeof data.data.balance === 'string') {
+  // Extract the balance from the response
+  // The actual response structure for CW20 query may vary by endpoint
+  console.log('Full response structure:', JSON.stringify(data, null, 2));
+  
+  // Try to handle all possible response formats
+  let balanceStr: string | undefined;
+  
+  if (data) {
+    // Check for all possible structures
+    if (data.data && typeof data.data.balance === 'string') {
       balanceStr = data.data.balance;
-    } else if (typeof data.data === 'string') {
-      // Sometimes the data itself is the balance
+    } else if (data.data && typeof data.data === 'string') {
       balanceStr = data.data;
-    } else if (data.data.result && typeof data.data.result.balance === 'string') {
-      // Some APIs nest it under result
+    } else if (data.data && data.data.result && typeof data.data.result.balance === 'string') {
       balanceStr = data.data.result.balance;
     } else if (data.result && typeof data.result === 'string') {
-      // Direct result format
       balanceStr = data.result;
-    }
-    
-    if (balanceStr) {
-      // Convert from micro units (1e6) to whole tokens
-      const balanceInMicro = parseInt(balanceStr);
-      const balance = balanceInMicro / 1_000_000;
-      console.log(`Real token balance for ${currentAddress}: ${balance} WILD`);
-      return balance;
+    } else if (data.result && typeof data.result.balance === 'string') {
+      balanceStr = data.result.balance;
+    } else if (data.response && typeof data.response.balance === 'string') {
+      balanceStr = data.response.balance;
+    } else if (data.amount || data.balance) {
+      // Try direct balance property
+      balanceStr = (data.balance || data.amount || '0').toString();
     }
   }
   
-  console.error('Unexpected balance response format:', data);
-  throw new Error('Unable to retrieve token balance from blockchain');
+  if (balanceStr) {
+    // Convert from micro units (1e6) to whole tokens
+    const balanceInMicro = parseInt(balanceStr);
+    const balance = balanceInMicro / 1_000_000;
+    console.log(`Real token balance for ${currentAddress}: ${balance} WILD`);
+    return balance;
+  } else {
+    console.error('Could not find balance in response:', data);
+    throw new Error('Balance data not found in API response');
+  }
 };