From 21059cd3a9e6bc0e802cfafab053cc1bd9363f3d Mon Sep 17 00:00:00 2001
From: Muhammad-Altabba <24407834+Muhammad-Altabba@users.noreply.github.com>
Date: Sun, 3 Dec 2023 04:18:51 +0100
Subject: [PATCH 1/2] allow smart contract methods to accept parameters even
 when no ABI was provided

---
 packages/web3-eth-contract/src/contract.ts | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/packages/web3-eth-contract/src/contract.ts b/packages/web3-eth-contract/src/contract.ts
index 197762c3554..bf4f84cdf37 100644
--- a/packages/web3-eth-contract/src/contract.ts
+++ b/packages/web3-eth-contract/src/contract.ts
@@ -114,7 +114,7 @@ type ContractBoundMethod<
 	Abi extends AbiFunctionFragment,
 	Method extends ContractMethod<Abi> = ContractMethod<Abi>,
 > = (
-	...args: Method['Inputs']
+	...args: Abi extends AbiFunctionFragment ? Method['Inputs'] : any
 ) => Method['Abi']['stateMutability'] extends 'payable' | 'pure'
 	? PayableMethodObject<Method['Inputs'], Method['Outputs']>
 	: NonPayableMethodObject<Method['Inputs'], Method['Outputs']>;
@@ -371,9 +371,8 @@ export class Contract<Abi extends ContractAbi>
 			: returnFormat ?? DEFAULT_RETURN_FORMAT;
 		const address =
 			typeof addressOrOptionsOrContext === 'string' ? addressOrOptionsOrContext : undefined;
-			this.config.contractDataInputFill =
-				(options as ContractInitOptions)?.dataInputFill ??
-				this.config.contractDataInputFill;
+		this.config.contractDataInputFill =
+			(options as ContractInitOptions)?.dataInputFill ?? this.config.contractDataInputFill;
 		this._parseAndSetJsonInterface(jsonInterface, returnDataFormat);
 
 		if (!isNullish(address)) {
@@ -1083,13 +1082,13 @@ export class Contract<Abi extends ContractAbi>
 			options: { ...options, dataInputFill: this.config.contractDataInputFill },
 			contractOptions: modifiedContractOptions,
 		});
-		
+
 		const transactionToSend = sendTransaction(this, tx, DEFAULT_RETURN_FORMAT, {
 			// TODO Should make this configurable by the user
 			checkRevertBeforeSending: false,
 			contractAbi: this._jsonInterface,
 		});
-		
+
 		// eslint-disable-next-line no-void
 		void transactionToSend.on('error', (error: unknown) => {
 			if (error instanceof ContractExecutionError) {

From 2d6efab2cd735d412948264f17724d5fc6621922 Mon Sep 17 00:00:00 2001
From: Muhammad-Altabba <24407834+Muhammad-Altabba@users.noreply.github.com>
Date: Sun, 3 Dec 2023 17:19:47 +0100
Subject: [PATCH 2/2] add a test case

---
 .../test/unit/contract.test.ts                | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/packages/web3-eth-contract/test/unit/contract.test.ts b/packages/web3-eth-contract/test/unit/contract.test.ts
index bee7d90999c..e631be978b9 100644
--- a/packages/web3-eth-contract/test/unit/contract.test.ts
+++ b/packages/web3-eth-contract/test/unit/contract.test.ts
@@ -1378,6 +1378,39 @@ describe('Contract', () => {
 			spyEstimateGas.mockClear();
 		});
 
+		it('estimateGas should work for contract method even with no ABI', async () => {
+			const contract = new Contract([], deployedAddr);
+
+			const spyTx = jest.spyOn(eth, 'sendTransaction').mockImplementation(() => {
+				const newContract = contract.clone();
+				newContract.options.address = deployedAddr;
+				// eslint-disable-next-line @typescript-eslint/no-unsafe-return
+				return Promise.resolve(newContract) as any;
+			});
+
+			const spyEstimateGas = jest
+				.spyOn(eth, 'estimateGas')
+				.mockImplementationOnce((_objInstance, _tx, _block) => {
+					expect(_block).toBe('latest');
+					expect(_tx.to).toStrictEqual(deployedAddr);
+					expect(_tx.from).toStrictEqual(sendOptions.from);
+					expect(_tx.data).toBe(
+						'0xa41368620000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000548656c6c6f000000000000000000000000000000000000000000000000000000',
+					);
+
+					// eslint-disable-next-line @typescript-eslint/no-unsafe-return
+					return Promise.resolve(BigInt(36916)) as any;
+				});
+
+			// This produces an error at runtime.
+			// This needs investigation and fixing.
+			const result = await contract.methods.setGreeting().estimateGas(sendOptions);
+			expect(result).toStrictEqual(BigInt(36916));
+
+			spyTx.mockClear();
+			spyEstimateGas.mockClear();
+		});
+
 		it('encodeABI should work for contract method', async () => {
 			const arg = 'Hello';