Example of returning prepared tx from mint client

packages/protocol-sdk/src/mint/mint-client.test.ts

@@ -26,7 +26,7 @@ describe("mint-helper", () => {
       const targetTokenId = 1n;
       const minter = new MintClient(zora);
 
-      const { send } = await minter.mintToken({
+      const { simulateContractParameters: params } = await minter.makePrepareMintTokenParams({
         address: targetContract,
         tokenId: targetTokenId,
         publicClient,
@@ -43,7 +43,10 @@ describe("mint-helper", () => {
         functionName: "balanceOf",
         args: [creatorAccount, targetTokenId],
       });
-      const hash = await send(walletClient);
+
+      const simulationResult = await publicClient.simulateContract(params);
+
+      const hash = await walletClient.writeContract(simulationResult.request);
       const receipt = await publicClient.waitForTransactionReceipt({ hash });
       const newBalance = await publicClient.readContract({
         abi: zoraCreator1155ImplABI,
@@ -72,7 +75,7 @@ describe("mint-helper", () => {
       const targetTokenId = undefined;
       const minter = new MintClient(zora);
 
-      const { send } = await minter.mintToken({
+      const { simulateContractParameters: prepared } = await minter.makePrepareMintTokenParams({
         address: targetContract,
         tokenId: targetTokenId,
         publicClient,
@@ -88,7 +91,11 @@ describe("mint-helper", () => {
         functionName: "balanceOf",
         args: [creatorAccount],
       });
-      const hash = await send(walletClient);
+
+      const simulated = await publicClient.simulateContract(prepared);
+
+      const hash = await walletClient.writeContract(simulated.request);
+
       const receipt = await publicClient.getTransactionReceipt({ hash });
       expect(receipt).not.to.be.null;
 

packages/protocol-sdk/src/mint/mint-client.ts

@@ -2,14 +2,14 @@ import {
   Address,
   Chain,
   PublicClient,
-  WalletClient,
   encodeAbiParameters,
   parseAbi,
   parseAbiParameters,
   zeroAddress,
 } from "viem";
 import { ClientBase } from "../apis/client-base";
 import { MintAPIClient, MintableGetTokenResponse } from "./mint-api-client";
+import { SimulateContractParameters } from "viem";
 import {
   zoraCreator1155ImplABI,
   zoraCreatorFixedPriceSaleStrategyAddress,
@@ -54,7 +54,7 @@ export class MintClient extends ClientBase {
     this.apiClient = apiClient;
   }
 
-  async mintToken({
+  async makePrepareMintTokenParams({
     publicClient,
     sender,
     address,
@@ -66,7 +66,10 @@ export class MintClient extends ClientBase {
     sender: Address;
     tokenId?: bigint | number | string;
     mintArguments: MintArguments;
-  }) {
+    }): Promise<{
+      simulateContractParameters: SimulateContractParameters,
+      mintable: any
+    }> {
     if (tokenId) {
       tokenId = BigInt(tokenId);
     }
@@ -97,12 +100,14 @@ export class MintClient extends ClientBase {
       );
     }
 
+    const thisPublicClient = this.getPublicClient(publicClient);
+
     if (
       mintable.feed_item.mint_context.mint_context_type === "zora_create_1155"
     ) {
       return {
-        send: await this.mintZora1155({
-          publicClient: this.getPublicClient(publicClient),
+        simulateContractParameters: await this.prepareMintZora1155({
+          publicClient: thisPublicClient,
           mintArguments,
           sender,
           mintable,
@@ -112,8 +117,8 @@ export class MintClient extends ClientBase {
     }
     if (mintable.feed_item.mint_context.mint_context_type === "zora_create") {
       return {
-        send: await this.mintZora721({
-          publicClient: this.getPublicClient(publicClient),
+        simulateContractParameters: await this.prepareMintZora721({
+          publicClient: thisPublicClient,
           mintArguments,
           sender,
           mintable,
@@ -125,7 +130,7 @@ export class MintClient extends ClientBase {
     throw new Error("Mintable type not found or recognized.");
   }
 
-  private async mintZora1155({
+  private async prepareMintZora1155({
     mintable,
     sender,
     publicClient,
@@ -149,8 +154,10 @@ export class MintClient extends ClientBase {
       },
     );
 
-    return async (walletClient: WalletClient) => {
-      const { request } = await publicClient.simulateContract({
+    const result: SimulateContractParameters<
+     typeof zoraCreator1155ImplABI,
+     'mintWithRewards'
+      > = {
         abi: zoraCreator1155ImplABI,
         functionName: "mintWithRewards",
         account: sender,
@@ -170,12 +177,12 @@ export class MintClient extends ClientBase {
           ]),
           mintArguments.mintReferral || zeroAddress,
         ],
-      });
-      return await walletClient.writeContract(request);
-    };
+      }
+
+    return result;
   }
 
-  private async mintZora721({
+  private async prepareMintZora721({
     mintable,
     publicClient,
     sender,
@@ -188,8 +195,10 @@ export class MintClient extends ClientBase {
       args: [BigInt(mintArguments.quantityToMint)],
     });
 
-    return async (walletClient: WalletClient) => {
-      const { request } = await publicClient.simulateContract({
+    const result: SimulateContractParameters<
+     typeof zora721Abi,
+     'mintWithRewards'
+      > = {
         abi: zora721Abi,
         address: mintable.feed_item.contract_address as Address,
         account: sender,
@@ -205,8 +214,8 @@ export class MintClient extends ClientBase {
           mintArguments.mintComment || "",
           mintArguments.mintReferral || zeroAddress,
         ],
-      });
-      return await walletClient.writeContract(request);
-    };
+    }
+
+    return result;
   }
 }