added multicall

src/stores/multicall.js

@@ -0,0 +1,40 @@
+import { defineStore } from "pinia";
+import MulticallJson from "@/assets/contracts/Multicall.json";
+import { useWalletStore } from "./wallet";
+
+
+export const useMultiCallStore = defineStore("multicall", {
+    state: () => ({
+        config: MulticallJson,
+        contract: null,
+    }),
+    getters: {},
+    actions: {
+        async aggregate(calls, parameters = {}) {
+            const callRequests = calls.map((call) => {
+				const callData = call.encodeABI();
+				return {
+					target: call._parent._address,
+					callData,
+				};
+            });
+            
+            const { returnData } = await this.contract.methods.aggregate(callRequests).call(parameters);
+
+            return returnData.map((hex, index) => {
+				const types = calls[index]._method.outputs.map((o) =>
+					o.internalType !== o.type && o.internalType !== undefined ? o : o.type
+				);
+                const walletStore = useWalletStore();
+
+				let result = walletStore.web3.eth.abi.decodeParameters(types, hex);
+
+				delete result.__length__;
+
+				result = Object.values(result);
+				return result.length === 1 ? result[0] : result;
+			});
+        }
+    }
+}
+);