Allow the deploy function to accept parameters even when no ABI was provided to the Contract

packages/web3-eth-abi/src/api/parameters_api.ts

@@ -23,26 +23,10 @@ along with web3.js.  If not, see <http://www.gnu.org/licenses/>.
 import { AbiError } from 'web3-errors';
 import { AbiInput, HexString } from 'web3-types';
 import { decodeParameters as decodeParametersInternal } from '../coders/decode.js';
-import { encodeParameters as encodeParametersInternal } from '../coders/encode.js';
+import { encodeParameters } from '../coders/encode.js';
+
+export { encodeParameters, inferTypesAndEncodeParameters } from '../coders/encode.js';
 
-/**
- * Encodes a parameter based on its type to its ABI representation.
- * @param abi - An array of {@link AbiInput}. See [Solidity's documentation](https://solidity.readthedocs.io/en/v0.5.3/abi-spec.html#json) for more details.
- * @param params - The actual parameters to encode.
- * @returns - The ABI encoded parameters
- * @example
- * ```ts
- * const res = web3.eth.abi.encodeParameters(
- *    ["uint256", "string"],
- *    ["2345675643", "Hello!%"]
- *  );
- *
- *  console.log(res);
- *  > 0x000000000000000000000000000000000000000000000000000000008bd02b7b0000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000748656c6c6f212500000000000000000000000000000000000000000000000000
- * ```
- */
-export const encodeParameters = (abi: ReadonlyArray<AbiInput>, params: unknown[]): string =>
-	encodeParametersInternal(abi, params);
 
 /**
  * Encodes a parameter based on its type to its ABI representation.

packages/web3-eth-abi/src/coders/encode.ts

@@ -15,20 +15,100 @@
 along with web3.js.  If not, see <http://www.gnu.org/licenses/>.
 */
 import { AbiError } from 'web3-errors';
-import { AbiInput } from 'web3-types';
+import { AbiInput, AbiParameter } from 'web3-types';
+import { toHex } from 'web3-utils';
 import { utils } from 'web3-validator';
 import { encodeTuple } from './base/index.js';
 import { toAbiParams } from './utils.js';
 
+/**
+ * @param params - The params to infer the ABI from
+ * @returns The inferred ABI
+ * @example
+ * ```
+ * inferParamsAbi([1, -1, 'hello', '0x1234', ])
+ * ```
+ * > [{ type: 'int256' }, { type: 'uint256' }, { type: 'string' }, { type: 'bytes' }]
+ * ```
+ */
+function inferParamsAbi(params: unknown[]): ReadonlyArray<AbiParameter> {
+	const abi: AbiParameter[] = [];
+	params.forEach(param => {
+		if (Array.isArray(param)) {
+			const inferredParams = inferParamsAbi(param);
+			abi.push({
+				type: 'tuple',
+				components: inferredParams,
+				name: '',
+				// eslint-disable-next-line @typescript-eslint/no-unsafe-argument
+			} as AbiParameter);
+		} else {
+			// eslint-disable-next-line @typescript-eslint/no-unsafe-argument
+			abi.push({ type: toHex(param as any, true) } as AbiParameter);
+		}
+	});
+	return abi;
+}
+
+/**
+ * Encodes a parameter based on its type to its ABI representation.
+ * @param abi - An array of {@link AbiInput}. See [Solidity's documentation](https://solidity.readthedocs.io/en/v0.5.3/abi-spec.html#json) for more details.
+ * @param params - The actual parameters to encode.
+ * @returns - The ABI encoded parameters
+ * @example
+ * ```ts
+ * const res = web3.eth.abi.encodeParameters(
+ *    ["uint256", "string"],
+ *    ["2345675643", "Hello!%"]
+ *  );
+ *
+ *  console.log(res);
+ *  > 0x000000000000000000000000000000000000000000000000000000008bd02b7b0000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000748656c6c6f212500000000000000000000000000000000000000000000000000
+ * ```
+ */
 export function encodeParameters(abi: ReadonlyArray<AbiInput>, params: unknown[]): string {
-	if (abi.length !== params.length) {
+	if (abi?.length !== params.length) {
 		throw new AbiError('Invalid number of values received for given ABI', {
-			expected: abi.length,
+			expected: abi?.length,
 			received: params.length,
 		});
 	}
+
 	const abiParams = toAbiParams(abi);
 	return utils.uint8ArrayToHexString(
 		encodeTuple({ type: 'tuple', name: '', components: abiParams }, params).encoded,
 	);
 }
+
+/**
+ * Infer a smart contract method parameter type and then encode this parameter.
+ * @param params - The parameters to encode.
+ * @returns - The ABI encoded parameters
+ *
+ * @remarks
+ * This method is useful when you don't know the type of the parameters you want to encode. It will infer the type of the parameters and then encode them.
+ * However, it is not recommended to use this method when you know the type of the parameters you want to encode. In this case, use the {@link encodeParameters} method instead.
+ * The type inference is not perfect and can lead to unexpected results. Especially when you want to encode an array, uint that is not uint256 or bytes....
+ * @example
+ * ```ts
+ * const res = web3.eth.abi.encodeParameters(
+ *    ["2345675643", "Hello!%"]
+ *  );
+ *
+ *  console.log(res);
+ *  > 0x000000000000000000000000000000000000000000000000000000008bd02b7b0000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000748656c6c6f212500000000000000000000000000000000000000000000000000
+ * ```
+ */
+export function inferTypesAndEncodeParameters(params: unknown[]): string {
+	try {
+		const abiParams = inferParamsAbi(params);
+		return utils.uint8ArrayToHexString(
+			encodeTuple({ type: 'tuple', name: '', components: abiParams }, params).encoded,
+		);
+	} catch (e) {
+		// throws If the inferred params type caused an error
+		throw new AbiError('Could not infer types from given params', {
+			params,
+		});
+	}
+}

packages/web3-eth-abi/test/unit/encodeDecodeParams.test.ts

@@ -16,7 +16,7 @@ along with web3.js.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 import { AbiInput } from 'web3-types';
-import { decodeParameters, encodeParameters } from '../../src';
+import { decodeParameters, encodeParameters, inferTypesAndEncodeParameters } from '../../src';
 import testsData from '../fixtures/abitestsdata.json';
 import { deepEqualTolerateBigInt, removeKey } from './test_utils';
 
@@ -26,6 +26,17 @@ describe('encodeParameters decodeParameters tests should pass', () => {
 		expect(encodedResult).toEqual(encoderTestObj.encoded);
 	});
 
+	it.each(testsData)(`unit test of encodeParameters - $name`, encoderTestObj => {
+		// skip for types that are not supported by infer-types
+		// the unsupported types are uint(other than 256), int(other than 256), bytes(that has a number like bytes1 or bytes2), and arrays
+		if (/((?<!u)int)|((?<!uint\d)uint(?!256))|(bytes\d)|(\[.*?\])/.test(encoderTestObj.type)) {
+			return;
+		}
+
+		const encodedResult = inferTypesAndEncodeParameters([encoderTestObj.value]);
+		expect(encodedResult).toEqual(encoderTestObj.encoded);
+	});
+
 	it.each(testsData)('unit test of decodeParameters - $name', decoderTestObj => {
 		const decodedResult = decodeParameters(
 			[decoderTestObj.type] as AbiInput[],

packages/web3-eth-contract/CHANGELOG.md

@@ -355,6 +355,10 @@ Documentation:
 
 ## [Unreleased]
 
+### Changed
+
+-	Allow the `deploy` function to accept parameters, even when no ABI was provided to the `Contract`(#6635)
+
 ### Fixed
 
 -	Fix and error that happen when trying to get past events by calling `contract.getPastEvents` or `contract.events.allEvents()`, if there is no matching events. (#6647)

packages/web3-eth-contract/src/contract.ts

@@ -743,7 +743,6 @@ export class Contract<Abi extends ContractAbi>
 		if (!abi) {
 			abi = {
 				type: 'constructor',
-				inputs: [],
 				stateMutability: '',
 			} as AbiConstructorFragment;
 		}

packages/web3-eth-contract/src/encoding.ts

@@ -35,6 +35,7 @@ import {
 	encodeFunctionSignature,
 	encodeParameter,
 	encodeParameters,
+	inferTypesAndEncodeParameters,
 	isAbiConstructorFragment,
 	jsonInterfaceMethodToString,
 } from 'web3-eth-abi';
@@ -120,16 +121,22 @@ export const encodeMethodABI = (
 	deployData?: HexString,
 ) => {
 	const inputLength = Array.isArray(abi.inputs) ? abi.inputs.length : 0;
-	if (inputLength !== args.length) {
+	if (abi.inputs && inputLength !== args.length) {
 		throw new Web3ContractError(
 			`The number of arguments is not matching the methods required number. You need to pass ${inputLength} arguments.`,
 		);
 	}
 
-	const params = encodeParameters(Array.isArray(abi.inputs) ? abi.inputs : [], args).replace(
-		'0x',
-		'',
-	);
+	let params: string;
+	if (abi.inputs) {
+		params = encodeParameters(Array.isArray(abi.inputs) ? abi.inputs : [], args).replace(
+			'0x',
+			'',
+		);
+	} else {
+		params = inferTypesAndEncodeParameters(args).replace('0x', '');
+	}
+
 
 	if (isAbiConstructorFragment(abi)) {
 		if (!deployData)

packages/web3-eth-contract/test/integration/contract_estimateGas_without_0x.test.ts

@@ -56,8 +56,6 @@ describe('contract', () => {
 
 		const myContract = contract.deploy({
 			data: '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',
-			// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-			// @ts-expect-error
 			arguments: [1],
 		});
 

packages/web3-eth-contract/test/unit/contract.test.ts

@@ -263,6 +263,39 @@ describe('Contract', () => {
 			sendTransactionSpy.mockClear();
 		});
 
+		it('should deploy contract with input property with no ABI', async () => {
+			const input = `${GreeterBytecode}0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000b4d79204772656574696e67000000000000000000000000000000000000000000`;
+			const contract = new Contract([]);
+
+			// eslint-disable-next-line @typescript-eslint/no-unused-vars
+			const sendTransactionSpy = jest
+				.spyOn(eth, 'sendTransaction')
+				.mockImplementation((_objInstance, tx) => {
+					expect(tx.to).toBeUndefined();
+					expect(tx.gas).toStrictEqual(sendOptions.gas);
+					expect(tx.gasPrice).toBeUndefined();
+					expect(tx.from).toStrictEqual(sendOptions.from);
+					expect(tx.input).toStrictEqual(input); // padded data
+
+					const newContract = contract.clone();
+					newContract.options.address = deployedAddr;
+
+					// eslint-disable-next-line @typescript-eslint/no-unsafe-return
+					return Promise.resolve(newContract) as any;
+				});
+
+			const deployedContract = await contract
+				.deploy({
+					input: GreeterBytecode,
+					arguments: ['My Greeting'],
+				})
+				.send(sendOptions);
+
+			expect(deployedContract).toBeDefined();
+			expect(deployedContract.options.address).toStrictEqual(deployedAddr);
+			sendTransactionSpy.mockClear();
+		});
+
 		it('should deploy contract with data property', async () => {
 			const data = `${GreeterBytecode}0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000b4d79204772656574696e67000000000000000000000000000000000000000000`;
 			const contract = new Contract(GreeterAbi);

packages/web3-types/src/eth_abi_types.ts

@@ -326,12 +326,21 @@ export type ContractConstructor<Abis extends ContractAbi> = {
 	};
 }['constructor'];
 
-export type ContractConstructorArgs<Abis extends ContractAbi> = {
-	[Abi in FilterAbis<
-		Abis,
-		AbiConstructorFragment & { type: 'constructor' }
-	> as 'constructor']: ContractMethodInputParameters<Abi['inputs']>;
-}['constructor'];
+export type ContractConstructorArgs<Abis extends ContractAbi> = FilterAbis<
+	Abis,
+	AbiConstructorFragment & {
+		type: 'constructor';
+	}
+> extends never
+	? any
+	: {
+			[Abi in FilterAbis<
+				Abis,
+				AbiConstructorFragment & {
+					type: 'constructor';
+				}
+			> as 'constructor']: ContractMethodInputParameters<Abi['inputs']>;
+	  }['constructor'];
 
 export type ContractMethod<Abi extends AbiFunctionFragment> = {
 	readonly Abi: Abi;

packages/web3-utils/src/converters.ts

@@ -27,6 +27,7 @@
 	isHex,
 	isHexStrict,
 	isInt,
+	isUInt,
 	isNullish,
 	utils,
 	utils as validatorUtils,
@@ -372,9 +373,12 @@
 		if (isHexStrict(value)) {
 			return returnType ? 'bytes' : value;
 		}
-		if (isHex(value) && !isInt(value)) {
+		if (isHex(value) && !isInt(value) && !isUInt(value)) {
 			return returnType ? 'bytes' : `0x${value}`;
 		}
+		if (isHex(value) && !isInt(value) && isUInt(value)) {
+			return returnType ? 'uint' : numberToHex(value);
+		}
 
 		if (!Number.isFinite(value)) {
 			return returnType ? 'string' : utf8ToHex(value);