fix: querying balances for Solana

packages/client/src/getBalances.ts

@@ -90,6 +90,14 @@ export const getBalances = async function (
           symbol: token.symbol,
           zrc20: token.zrc20_contract_address,
         });
+      } else if (supportedChain.vm === "svm") {
+        tokens.push({
+          chain_id: token.foreign_chain_id,
+          coin_type: "SPL",
+          contract: token.asset,
+          symbol: token.symbol,
+          zrc20: token.zrc20_contract_address,
+        });
       }
       tokens.push({
         chain_id: this.getChainId(`zeta_${this.network}`),
@@ -307,5 +315,65 @@ export const getBalances = async function (
       })
   );
 
+  // Solana SPL token balances
+  if (solanaAddress) {
+    const splTokens = tokens.filter((token) => token.coin_type === "SPL");
+
+    await Promise.all(
+      splTokens.map(async (token) => {
+        try {
+          const API = this.getEndpoint("solana", token.chain_name);
+          // Use getTokenAccountsByOwner to find token accounts for this mint
+          const response = await fetch(API, {
+            body: JSON.stringify({
+              id: 1,
+              jsonrpc: "2.0",
+              method: "getTokenAccountsByOwner",
+              params: [
+                solanaAddress,
+                { mint: token.contract },
+                {
+                  encoding: "jsonParsed",
+                },
+              ],
+            }),
+            headers: {
+              "Content-Type": "application/json",
+            },
+            method: "POST",
+          });
+
+          if (!response.ok) {
+            console.error(
+              `Failed to fetch SPL token accounts for ${token.symbol}`,
+              response
+            );
+            return;
+          }
+
+          const r = await response.json();
+          if (r.result && r.result.value && r.result.value.length > 0) {
+            let totalBalance = 0;
+            for (const acc of r.result.value) {
+              const amount = acc.account.data.parsed.info.tokenAmount.amount;
+              const decimals =
+                acc.account.data.parsed.info.tokenAmount.decimals;
+              totalBalance += parseFloat(amount) / Math.pow(10, decimals);
+            }
+            balances.push({ ...token, balance: totalBalance.toString() });
+          } else {
+            // No token accounts found, balance is 0
+            balances.push({ ...token, balance: "0" });
+          }
+        } catch (err) {
+          console.error(
+            `Failed to get SPL balance for ${token.symbol} on ${token.chain_name}:`,
+            err
+          );
+        }
+      })
+    );
+  }
+
   return balances;
 };