Merge pull request #1413 from blockscout/tom2drum/issue-1035

contract interaction: validate args inputs

jest/setup.ts

 import dotenv from 'dotenv';
+import { TextEncoder, TextDecoder } from 'util';
 
 import fetchMock from 'jest-fetch-mock';
 
@@ -6,6 +7,8 @@ fetchMock.enableMocks();
 
 const envs = dotenv.config({ path: './configs/envs/.env.jest' });
 
+Object.assign(global, { TextDecoder, TextEncoder });
+
 Object.defineProperty(window, 'matchMedia', {
   writable: true,
   value: jest.fn().mockImplementation(query => ({

lib/hooks/useContractTabs.tsx

@@ -15,22 +15,22 @@ export default function useContractTabs(data: Address | undefined) {
       //   { id: 'contact_decompiled_code', title: 'Decompiled code', component: <div>Decompiled code</div> } :
       //   undefined,
       data?.has_methods_read ?
-        { id: 'read_contract', title: 'Read contract', component: <ContractRead addressHash={ data?.hash }/> } :
+        { id: 'read_contract', title: 'Read contract', component: <ContractRead/> } :
         undefined,
       data?.has_methods_read_proxy ?
-        { id: 'read_proxy', title: 'Read proxy', component: <ContractRead addressHash={ data?.hash } isProxy/> } :
+        { id: 'read_proxy', title: 'Read proxy', component: <ContractRead/> } :
         undefined,
       data?.has_custom_methods_read ?
-        { id: 'read_custom_methods', title: 'Read custom', component: <ContractRead addressHash={ data?.hash } isCustomAbi/> } :
+        { id: 'read_custom_methods', title: 'Read custom', component: <ContractRead/> } :
         undefined,
       data?.has_methods_write ?
-        { id: 'write_contract', title: 'Write contract', component: <ContractWrite addressHash={ data?.hash }/> } :
+        { id: 'write_contract', title: 'Write contract', component: <ContractWrite/> } :
         undefined,
       data?.has_methods_write_proxy ?
-        { id: 'write_proxy', title: 'Write proxy', component: <ContractWrite addressHash={ data?.hash } isProxy/> } :
+        { id: 'write_proxy', title: 'Write proxy', component: <ContractWrite/> } :
         undefined,
       data?.has_custom_methods_write ?
-        { id: 'write_custom_methods', title: 'Write custom', component: <ContractWrite addressHash={ data?.hash } isCustomAbi/> } :
+        { id: 'write_custom_methods', title: 'Write custom', component: <ContractWrite/> } :
         undefined,
     ].filter(Boolean);
   }, [ data ]);

mocks/contract/methods.ts

@@ -9,7 +9,7 @@ export const read: Array<SmartContractReadMethod> = [
   {
     constant: true,
     inputs: [
-      { internalType: 'address', name: '', type: 'address' },
+      { internalType: 'address', name: 'wallet', type: 'address' },
     ],
     method_id: '70a08231',
     name: 'FLASHLOAN_PREMIUM_TOTAL',

package.json

@@ -89,6 +89,7 @@
     "react-identicons": "^1.2.5",
     "react-intersection-observer": "^9.5.2",
     "react-jazzicon": "^1.0.4",
+    "react-number-format": "^5.3.1",
     "react-scroll": "^1.8.7",
     "swagger-ui-react": "^5.9.0",
     "use-font-face-observer": "^1.2.1",

theme/components/Alert/Alert.ts

@@ -13,7 +13,7 @@ function getBg(props: StyleFunctionProps) {
   const { theme, colorScheme: c } = props;
   const darkBg = transparentize(`${ c }.200`, 0.16)(theme);
   return {
-    light: `colors.${ c }.100`,
+    light: `colors.${ c }.${ c === 'red' ? '50' : '100' }`,
     dark: darkBg,
   };
 }

types/api/contract.ts

-import type { Abi } from 'abitype';
+import type { Abi, AbiType } from 'abitype';
 
-export type SmartContractMethodArgType = 'address' | 'uint256' | 'bool' | 'string' | 'bytes' | 'bytes32' | 'bytes32[]';
+export type SmartContractMethodArgType = AbiType;
 export type SmartContractMethodStateMutability = 'view' | 'nonpayable' | 'payable';
 
 export interface SmartContract {
@@ -88,6 +88,8 @@ export interface SmartContractMethodInput {
   internalType?: SmartContractMethodArgType;
   name: string;
   type: SmartContractMethodArgType;
+  components?: Array<SmartContractMethodInput>;
+  fieldType?: 'native_coin';
 }
 
 export interface SmartContractMethodOutput extends SmartContractMethodInput {

ui/address/contract/ContractMethodCallable.tsx

 import { Box, Button, chakra, Flex } from '@chakra-ui/react';
-import _fromPairs from 'lodash/fromPairs';
 import React from 'react';
 import type { SubmitHandler } from 'react-hook-form';
-import { useForm } from 'react-hook-form';
+import { useForm, FormProvider } from 'react-hook-form';
 
 import type { MethodFormFields, ContractMethodCallResult } from './types';
 import type { SmartContractMethodInput, SmartContractMethod } from 'types/api/contract';
 
+import config from 'configs/app';
 import * as mixpanel from 'lib/mixpanel/index';
 import IconSvg from 'ui/shared/IconSvg';
 
-import ContractMethodField from './ContractMethodField';
+import ContractMethodCallableRow from './ContractMethodCallableRow';
+import { formatFieldValues, transformFieldsToArgs } from './utils';
 
 interface ResultComponentProps<T extends SmartContractMethod> {
   item: T;
@@ -25,42 +26,9 @@ interface Props<T extends SmartContractMethod> {
   isWrite?: boolean;
 }
 
-const getFieldName = (name: string | undefined, index: number): string => name || String(index);
-
-const sortFields = (data: Array<SmartContractMethodInput>) => ([ a ]: [string, string], [ b ]: [string, string]): 1 | -1 | 0 => {
-  const fieldNames = data.map(({ name }, index) => getFieldName(name, index));
-  const indexA = fieldNames.indexOf(a);
-  const indexB = fieldNames.indexOf(b);
-
-  if (indexA > indexB) {
-    return 1;
-  }
-
-  if (indexA < indexB) {
-    return -1;
-  }
-
-  return 0;
-};
-
-const castFieldValue = (data: Array<SmartContractMethodInput>) => ([ key, value ]: [ string, string ], index: number) => {
-  if (data[index].type.includes('[')) {
-    return [ key, parseArrayValue(value) ];
-  }
-  return [ key, value ];
-};
-
-const parseArrayValue = (value: string) => {
-  try {
-    const parsedResult = JSON.parse(value);
-    if (Array.isArray(parsedResult)) {
-      return parsedResult;
-    }
-    throw new Error('Not an array');
-  } catch (error) {
-    return '';
-  }
-};
+// groupName%groupIndex:inputName%inputIndex
+const getFormFieldName = (input: { index: number; name: string }, group?: { index: number; name: string }) =>
+  `${ group ? `${ group.name }%${ group.index }:` : '' }${ input.name || 'input' }%${ input.index }`;
 
 const ContractMethodCallable = <T extends SmartContractMethod>({ data, onSubmit, resultComponent: ResultComponent, isWrite }: Props<T>) => {
 
@@ -71,15 +39,16 @@ const ContractMethodCallable = <T extends SmartContractMethod>({ data, onSubmit,
     return [
       ...('inputs' in data ? data.inputs : []),
       ...('stateMutability' in data && data.stateMutability === 'payable' ? [ {
-        name: 'value',
+        name: `Send native ${ config.chain.currency.symbol }`,
         type: 'uint256' as const,
         internalType: 'uint256' as const,
+        fieldType: 'native_coin' as const,
       } ] : []),
     ];
   }, [ data ]);
 
-  const { control, handleSubmit, setValue, getValues } = useForm<MethodFormFields>({
-    defaultValues: _fromPairs(inputs.map(({ name }, index) => [ getFieldName(name, index), '' ])),
+  const formApi = useForm<MethodFormFields>({
+    mode: 'onBlur',
   });
 
   const handleTxSettle = React.useCallback(() => {
@@ -91,10 +60,8 @@ const ContractMethodCallable = <T extends SmartContractMethod>({ data, onSubmit,
   }, [ result ]);
 
   const onFormSubmit: SubmitHandler<MethodFormFields> = React.useCallback(async(formData) => {
-    const args = Object.entries(formData)
-      .sort(sortFields(inputs))
-      .map(castFieldValue(inputs))
-      .map(([ , value ]) => value);
+    const formattedData = formatFieldValues(formData, inputs);
+    const args = transformFieldsToArgs(formattedData);
 
     setResult(undefined);
     setLoading(true);
@@ -117,46 +84,87 @@ const ContractMethodCallable = <T extends SmartContractMethod>({ data, onSubmit,
 
   return (
     <Box>
-      <chakra.form
-        noValidate
-        display="flex"
-        columnGap={ 3 }
-        flexDir={{ base: 'column', lg: 'row' }}
-        rowGap={ 2 }
-        alignItems={{ base: 'flex-start', lg: 'center' }}
-        onSubmit={ handleSubmit(onFormSubmit) }
-        flexWrap="wrap"
-        onChange={ handleFormChange }
-      >
-        { inputs.map(({ type, name }, index) => {
-          const fieldName = getFieldName(name, index);
-          return (
-            <ContractMethodField
-              key={ fieldName }
-              name={ fieldName }
-              valueType={ type }
-              placeholder={ `${ name }(${ type })` }
-              control={ control }
-              setValue={ setValue }
-              getValues={ getValues }
-              isDisabled={ isLoading }
-              onChange={ handleFormChange }
-            />
-          );
-        }) }
-        <Button
-          isLoading={ isLoading }
-          loadingText={ isWrite ? 'Write' : 'Query' }
-          variant="outline"
-          size="sm"
-          flexShrink={ 0 }
-          type="submit"
+      <FormProvider { ...formApi }>
+        <chakra.form
+          noValidate
+          onSubmit={ formApi.handleSubmit(onFormSubmit) }
+          onChange={ handleFormChange }
         >
-          { isWrite ? 'Write' : 'Query' }
-        </Button>
-      </chakra.form>
+          <Flex
+            flexDir="column"
+            rowGap={ 3 }
+            mb={ 3 }
+            _empty={{ display: 'none' }}
+          >
+            { inputs.map((input, index) => {
+              const fieldName = getFormFieldName({ name: input.name, index });
+
+              if (input.type === 'tuple' && input.components) {
+                return (
+                  <React.Fragment key={ fieldName }>
+                    { index !== 0 && <><Box h={{ base: 0, lg: 3 }}/><div/></> }
+                    <Box
+                      fontWeight={ 500 }
+                      lineHeight="20px"
+                      py={{ lg: '6px' }}
+                      fontSize="sm"
+                      wordBreak="break-word"
+                    >
+                      { input.name } ({ input.type })
+                    </Box>
+                    { input.components.map((component, componentIndex) => {
+                      const fieldName = getFormFieldName(
+                        { name: component.name, index: componentIndex },
+                        { name: input.name, index },
+                      );
+
+                      return (
+                        <ContractMethodCallableRow
+                          key={ fieldName }
+                          fieldName={ fieldName }
+                          argName={ component.name }
+                          argType={ component.type }
+                          isDisabled={ isLoading }
+                          onChange={ handleFormChange }
+                          isGrouped
+                        />
+                      );
+                    }) }
+                    { index !== inputs.length - 1 && <><Box h={{ base: 0, lg: 3 }}/><div/></> }
+                  </React.Fragment>
+                );
+              }
+
+              return (
+                <ContractMethodCallableRow
+                  key={ fieldName }
+                  fieldName={ fieldName }
+                  fieldType={ input.fieldType }
+                  argName={ input.name }
+                  argType={ input.type }
+                  isDisabled={ isLoading }
+                  isOptional={ input.fieldType === 'native_coin' && inputs.length > 1 }
+                  onChange={ handleFormChange }
+                />
+              );
+            }) }
+          </Flex>
+          <Button
+            isLoading={ isLoading }
+            loadingText={ isWrite ? 'Write' : 'Read' }
+            variant="outline"
+            size="sm"
+            flexShrink={ 0 }
+            width="min-content"
+            px={ 4 }
+            type="submit"
+          >
+            { isWrite ? 'Write' : 'Read' }
+          </Button>
+        </chakra.form>
+      </FormProvider>
       { 'outputs' in data && !isWrite && data.outputs.length > 0 && (
-        <Flex mt={ 3 }>
+        <Flex mt={ 3 } fontSize="sm">
           <IconSvg name="arrows/down-right" boxSize={ 5 } mr={ 1 }/>
           <p>
             { data.outputs.map(({ type, name }, index) => {

ui/address/contract/ContractMethodCallableRow.tsx

+import { Box, Flex, useColorModeValue } from '@chakra-ui/react';
+import React from 'react';
+import { useFormContext } from 'react-hook-form';
+
+import type { MethodFormFields } from './types';
+import type { SmartContractMethodArgType, SmartContractMethodInput } from 'types/api/contract';
+
+import ContractMethodField from './ContractMethodField';
+import ContractMethodFieldArray from './ContractMethodFieldArray';
+import { ARRAY_REGEXP } from './utils';
+
+interface Props {
+  fieldName: string;
+  fieldType?: SmartContractMethodInput['fieldType'];
+  argName: string;
+  argType: SmartContractMethodArgType;
+  onChange: () => void;
+  isDisabled: boolean;
+  isGrouped?: boolean;
+  isOptional?: boolean;
+}
+
+const ContractMethodCallableRow = ({ argName, fieldName, fieldType, argType, onChange, isDisabled, isGrouped, isOptional }: Props) => {
+  const { control, getValues, setValue } = useFormContext<MethodFormFields>();
+  const arrayTypeMatch = argType.match(ARRAY_REGEXP);
+  const nativeCoinFieldBgColor = useColorModeValue('blackAlpha.50', 'whiteAlpha.100');
+
+  const content = arrayTypeMatch ? (
+    <ContractMethodFieldArray
+      name={ fieldName }
+      argType={ arrayTypeMatch[1] as SmartContractMethodArgType }
+      size={ Number(arrayTypeMatch[2] || Infinity) }
+      control={ control }
+      setValue={ setValue }
+      getValues={ getValues }
+      isDisabled={ isDisabled }
+      onChange={ onChange }
+    />
+  ) : (
+    <ContractMethodField
+      name={ fieldName }
+      argType={ argType }
+      placeholder={ argType }
+      control={ control }
+      setValue={ setValue }
+      getValues={ getValues }
+      isDisabled={ isDisabled }
+      isOptional={ isOptional }
+      onChange={ onChange }
+    />
+  );
+
+  const isNativeCoinField = fieldType === 'native_coin';
+
+  return (
+    <Flex
+      flexDir={{ base: 'column', lg: 'row' }}
+      columnGap={ 3 }
+      rowGap={{ base: 2, lg: 0 }}
+      bgColor={ isNativeCoinField ? nativeCoinFieldBgColor : undefined }
+      py={ isNativeCoinField ? 1 : undefined }
+      px={ isNativeCoinField ? '6px' : undefined }
+      mx={ isNativeCoinField ? '-6px' : undefined }
+      borderRadius="base"
+    >
+      <Box
+        position="relative"
+        fontWeight={ 500 }
+        lineHeight="20px"
+        py={{ lg: '6px' }}
+        fontSize="sm"
+        color={ isGrouped ? 'text_secondary' : 'initial' }
+        wordBreak="break-word"
+        w={{ lg: '250px' }}
+        flexShrink={ 0 }
+      >
+        { argName }{ isOptional ? '' : '*' } ({ argType })
+      </Box>
+      { content }
+    </Flex>
+  );
+};
+
+export default React.memo(ContractMethodCallableRow);

ui/address/contract/ContractMethodField.tsx

 import {
+  Box,
   FormControl,
   Input,
   InputGroup,
   InputRightElement,
+  useColorModeValue,
 } from '@chakra-ui/react';
 import React from 'react';
-import type { Control, ControllerRenderProps, UseFormGetValues, UseFormSetValue } from 'react-hook-form';
+import type { Control, ControllerRenderProps, FieldError, UseFormGetValues, UseFormSetValue, UseFormStateReturn } from 'react-hook-form';
 import { Controller } from 'react-hook-form';
+import { NumericFormat } from 'react-number-format';
+import { isAddress, isHex, getAddress } from 'viem';
 
 import type { MethodFormFields } from './types';
 import type { SmartContractMethodArgType } from 'types/api/contract';
@@ -14,21 +18,25 @@ import type { SmartContractMethodArgType } from 'types/api/contract';
 import ClearButton from 'ui/shared/ClearButton';
 
 import ContractMethodFieldZeroes from './ContractMethodFieldZeroes';
-import { addZeroesAllowed } from './utils';
+import { INT_REGEXP, BYTES_REGEXP, getIntBoundaries, formatBooleanValue } from './utils';
 
 interface Props {
+  name: string;
+  index?: number;
+  groupName?: string;
+  placeholder: string;
+  argType: SmartContractMethodArgType;
   control: Control<MethodFormFields>;
   setValue: UseFormSetValue<MethodFormFields>;
   getValues: UseFormGetValues<MethodFormFields>;
-  placeholder: string;
-  name: string;
-  valueType: SmartContractMethodArgType;
   isDisabled: boolean;
+  isOptional?: boolean;
   onChange: () => void;
 }
 
-const ContractMethodField = ({ control, name, valueType, placeholder, setValue, getValues, isDisabled, onChange }: Props) => {
+const ContractMethodField = ({ control, name, groupName, index, argType, placeholder, setValue, getValues, isDisabled, isOptional, onChange }: Props) => {
   const ref = React.useRef<HTMLInputElement>(null);
+  const bgColor = useColorModeValue('white', 'black');
 
   const handleClear = React.useCallback(() => {
     setValue(name, '');
@@ -37,47 +45,147 @@ const ContractMethodField = ({ control, name, valueType, placeholder, setValue,
   }, [ name, onChange, setValue ]);
 
   const handleAddZeroesClick = React.useCallback((power: number) => {
-    const value = getValues()[name];
+    const value = groupName && index !== undefined ? getValues()[groupName][index] : getValues()[name];
     const zeroes = Array(power).fill('0').join('');
     const newValue = value ? value + zeroes : '1' + zeroes;
     setValue(name, newValue);
     onChange();
-  }, [ getValues, name, onChange, setValue ]);
+  }, [ getValues, groupName, index, name, onChange, setValue ]);
+
+  const intMatch = React.useMemo(() => {
+    const match = argType.match(INT_REGEXP);
+    if (!match) {
+      return null;
+    }
+
+    const [ , isUnsigned, power = '256' ] = match;
+    const [ min, max ] = getIntBoundaries(Number(power), Boolean(isUnsigned));
+
+    return { isUnsigned, power, min, max };
+  }, [ argType ]);
 
-  const hasZerosControl = addZeroesAllowed(valueType);
+  const bytesMatch = React.useMemo(() => {
+    return argType.match(BYTES_REGEXP);
+  }, [ argType ]);
+
+  const renderInput = React.useCallback((
+    { field, formState }: { field: ControllerRenderProps<MethodFormFields>; formState: UseFormStateReturn<MethodFormFields> },
+  ) => {
+    const error: FieldError | undefined = index !== undefined && groupName !== undefined ?
+      (formState.errors[groupName] as unknown as Array<FieldError>)?.[index] :
+      formState.errors[name];
+
+    // show control for all inputs which allows to insert 10^18 or greater numbers
+    const hasZerosControl = intMatch && Number(intMatch.power) >= 64;
 
-  const renderInput = React.useCallback(({ field }: { field: ControllerRenderProps<MethodFormFields> }) => {
     return (
-      <FormControl
-        id={ name }
-        flexBasis={{ base: '100%', lg: 'calc((100% - 24px) / 3 - 65px)' }}
-        w={{ base: '100%', lg: 'auto' }}
-        flexGrow={ 1 }
-        isDisabled={ isDisabled }
-      >
-        <InputGroup size="xs">
-          <Input
-            { ...field }
-            ref={ ref }
-            placeholder={ placeholder }
-            paddingRight={ hasZerosControl ? '120px' : '40px' }
-          />
-          <InputRightElement w="auto" right={ 1 }>
-            { field.value && <ClearButton onClick={ handleClear } isDisabled={ isDisabled }/> }
-            { hasZerosControl && <ContractMethodFieldZeroes onClick={ handleAddZeroesClick } isDisabled={ isDisabled }/> }
-          </InputRightElement>
-        </InputGroup>
-      </FormControl>
+      <Box w="100%">
+        <FormControl
+          id={ name }
+          isDisabled={ isDisabled }
+        >
+          <InputGroup size="xs">
+            <Input
+              { ...field }
+              { ...(intMatch ? {
+                as: NumericFormat,
+                thousandSeparator: ' ',
+                decimalScale: 0,
+                allowNegative: !intMatch.isUnsigned,
+              } : {}) }
+              ref={ ref }
+              isInvalid={ Boolean(error) }
+              required={ !isOptional }
+              placeholder={ placeholder }
+              paddingRight={ hasZerosControl ? '120px' : '40px' }
+              autoComplete="off"
+              bgColor={ bgColor }
+            />
+            <InputRightElement w="auto" right={ 1 }>
+              { typeof field.value === 'string' && field.value.replace('\n', '') && <ClearButton onClick={ handleClear } isDisabled={ isDisabled }/> }
+              { hasZerosControl && <ContractMethodFieldZeroes onClick={ handleAddZeroesClick } isDisabled={ isDisabled }/> }
+            </InputRightElement>
+          </InputGroup>
+        </FormControl>
+        { error && <Box color="error" fontSize="sm" mt={ 1 }>{ error.message }</Box> }
+      </Box>
     );
-  }, [ name, isDisabled, placeholder, hasZerosControl, handleClear, handleAddZeroesClick ]);
+  }, [ index, groupName, name, intMatch, isDisabled, isOptional, placeholder, bgColor, handleClear, handleAddZeroesClick ]);
+
+  const validate = React.useCallback((_value: string | Array<string> | undefined) => {
+    if (typeof _value === 'object' || !_value) {
+      return;
+    }
+
+    const value = _value.replace('\n', '');
+
+    if (!value && !isOptional) {
+      return 'Field is required';
+    }
+
+    if (argType === 'address') {
+      if (!isAddress(value)) {
+        return 'Invalid address format';
+      }
+
+      // all lowercase addresses are valid
+      const isInLowerCase = value === value.toLowerCase();
+      if (isInLowerCase) {
+        return true;
+      }
+
+      // check if address checksum is valid
+      return getAddress(value) === value ? true : 'Invalid address checksum';
+    }
+
+    if (intMatch) {
+      const formattedValue = Number(value.replace(/\s/g, ''));
+
+      if (Object.is(formattedValue, NaN)) {
+        return 'Invalid integer format';
+      }
+
+      if (formattedValue > intMatch.max || formattedValue < intMatch.min) {
+        const lowerBoundary = intMatch.isUnsigned ? '0' : `-1 * 2 ^ ${ Number(intMatch.power) / 2 }`;
+        const upperBoundary = intMatch.isUnsigned ? `2 ^ ${ intMatch.power } - 1` : `2 ^ ${ Number(intMatch.power) / 2 } - 1`;
+        return `Value should be in range from "${ lowerBoundary }" to "${ upperBoundary }" inclusively`;
+      }
+
+      return true;
+    }
+
+    if (argType === 'bool') {
+      const formattedValue = formatBooleanValue(value);
+      if (formattedValue === undefined) {
+        return 'Invalid boolean format. Allowed values: 0, 1, true, false';
+      }
+    }
+
+    if (bytesMatch) {
+      const [ , length ] = bytesMatch;
+
+      if (!isHex(value)) {
+        return 'Invalid bytes format';
+      }
+
+      if (length) {
+        const valueLengthInBytes = value.replace('0x', '').length / 2;
+        return valueLengthInBytes !== Number(length) ? `Value should be ${ length } bytes in length` : true;
+      }
+
+      return true;
+    }
+
+    return true;
+  }, [ isOptional, argType, intMatch, bytesMatch ]);
 
   return (
     <Controller
       name={ name }
       control={ control }
       render={ renderInput }
+      rules={{ required: isOptional ? false : 'Field is required', validate }}
     />
-
   );
 };
 

ui/address/contract/ContractMethodFieldArray.tsx

+import { Flex, IconButton } from '@chakra-ui/react';
+import React from 'react';
+import type { Control, UseFormGetValues, UseFormSetValue } from 'react-hook-form';
+import { useFieldArray } from 'react-hook-form';
+
+import type { MethodFormFields } from './types';
+import type { SmartContractMethodArgType } from 'types/api/contract';
+
+import IconSvg from 'ui/shared/IconSvg';
+
+import ContractMethodField from './ContractMethodField';
+
+interface Props {
+  name: string;
+  size: number;
+  argType: SmartContractMethodArgType;
+  control: Control<MethodFormFields>;
+  setValue: UseFormSetValue<MethodFormFields>;
+  getValues: UseFormGetValues<MethodFormFields>;
+  isDisabled: boolean;
+  onChange: () => void;
+}
+
+const ContractMethodFieldArray = ({ control, name, setValue, getValues, isDisabled, argType, onChange, size }: Props) => {
+  const { fields, append, remove } = useFieldArray({
+    name: name as never,
+    control,
+  });
+
+  React.useEffect(() => {
+    if (fields.length === 0) {
+      if (size === Infinity) {
+        append('');
+      } else {
+        for (let i = 0; i < size - 1; i++) {
+          // a little hack to append multiple empty fields in the array
+          // had to adjust code in ContractMethodField as well
+          append('\n');
+        }
+      }
+    }
+
+  }, [ fields.length, append, size ]);
+
+  const handleAddButtonClick = React.useCallback(() => {
+    append('');
+  }, [ append ]);
+
+  const handleRemoveButtonClick = React.useCallback((event: React.MouseEvent<HTMLButtonElement>) => {
+    const itemIndex = event.currentTarget.getAttribute('data-index');
+    if (itemIndex) {
+      remove(Number(itemIndex));
+    }
+  }, [ remove ]);
+
+  return (
+    <Flex flexDir="column" rowGap={ 3 } w="100%">
+      { fields.map((field, index, array) => {
+        return (
+          <Flex key={ field.id } columnGap={ 3 }>
+            <ContractMethodField
+              name={ `${ name }[${ index }]` }
+              groupName={ name }
+              index={ index }
+              argType={ argType }
+              placeholder={ argType }
+              control={ control }
+              setValue={ setValue }
+              getValues={ getValues }
+              isDisabled={ isDisabled }
+              onChange={ onChange }
+            />
+            { array.length > 1 && size === Infinity && (
+              <IconButton
+                aria-label="remove"
+                data-index={ index }
+                variant="outline"
+                w="30px"
+                h="30px"
+                flexShrink={ 0 }
+                onClick={ handleRemoveButtonClick }
+                icon={ <IconSvg name="minus" boxSize={ 4 }/> }
+                isDisabled={ isDisabled }
+              />
+            ) }
+            { index === array.length - 1 && size === Infinity && (
+              <IconButton
+                aria-label="add"
+                data-index={ index }
+                variant="outline"
+                w="30px"
+                h="30px"
+                flexShrink={ 0 }
+                onClick={ handleAddButtonClick }
+                icon={ <IconSvg name="plus" boxSize={ 4 }/> }
+                isDisabled={ isDisabled }
+              />
+            ) }
+          </Flex>
+        );
+      }) }
+    </Flex>
+  );
+};
+
+export default React.memo(ContractMethodFieldArray);

ui/address/contract/ContractMethodsAccordion.tsx

@@ -11,9 +11,10 @@ interface Props<T extends SmartContractMethod> {
   data: Array<T>;
   addressHash?: string;
   renderItemContent: (item: T, index: number, id: number) => React.ReactNode;
+  tab: string;
 }
 
-const ContractMethodsAccordion = <T extends SmartContractMethod>({ data, addressHash, renderItemContent }: Props<T>) => {
+const ContractMethodsAccordion = <T extends SmartContractMethod>({ data, addressHash, renderItemContent, tab }: Props<T>) => {
   const [ expandedSections, setExpandedSections ] = React.useState<Array<number>>(data.length === 1 ? [ 0 ] : []);
   const [ id, setId ] = React.useState(0);
 
@@ -79,6 +80,7 @@ const ContractMethodsAccordion = <T extends SmartContractMethod>({ data, address
             index={ index }
             addressHash={ addressHash }
             renderContent={ renderItemContent as (item: SmartContractMethod, index: number, id: number) => React.ReactNode }
+            tab={ tab }
           />
         )) }
       </Accordion>

ui/address/contract/ContractMethodsAccordionItem.tsx

@@ -16,9 +16,10 @@ interface Props<T extends SmartContractMethod> {
   id: number;
   addressHash?: string;
   renderContent: (item: T, index: number, id: number) => React.ReactNode;
+  tab: string;
 }
 
-const ContractMethodsAccordionItem = <T extends SmartContractMethod>({ data, index, id, addressHash, renderContent }: Props<T>) => {
+const ContractMethodsAccordionItem = <T extends SmartContractMethod>({ data, index, id, addressHash, renderContent, tab }: Props<T>) => {
   const url = React.useMemo(() => {
     if (!('method_id' in data)) {
       return '';
@@ -28,11 +29,11 @@ const ContractMethodsAccordionItem = <T extends SmartContractMethod>({ data, ind
       pathname: '/address/[hash]',
       query: {
         hash: addressHash ?? '',
-        tab: 'read_contract',
+        tab,
       },
       hash: data.method_id,
     });
-  }, [ addressHash, data ]);
+  }, [ addressHash, data, tab ]);
 
   const { hasCopied, onCopy } = useClipboard(url, 1000);
   const { isOpen, onOpen, onClose } = useDisclosure();
@@ -85,7 +86,7 @@ const ContractMethodsAccordionItem = <T extends SmartContractMethod>({ data, ind
           <AccordionIcon/>
         </AccordionButton>
       </Element>
-      <AccordionPanel pb={ 4 } px={ 0 }>
+      <AccordionPanel pb={ 4 } pr={ 0 } pl="28px" w="calc(100% - 6px)">
         { renderContent(data, index, id) }
       </AccordionPanel>
     </AccordionItem>

ui/address/contract/ContractRead.pw.tsx

@@ -28,7 +28,7 @@ test('base view +@mobile +@dark-mode', async({ mount, page }) => {
 
   const component = await mount(
     <TestApp>
-      <ContractRead addressHash={ addressHash }/>
+      <ContractRead/>
     </TestApp>,
     { hooksConfig },
   );
@@ -37,8 +37,8 @@ test('base view +@mobile +@dark-mode', async({ mount, page }) => {
 
   await expect(component).toHaveScreenshot();
 
-  await component.getByPlaceholder(/address/i).type('address-hash');
-  await component.getByText(/query/i).click();
+  await component.getByPlaceholder(/address/i).type('0xa113Ce24919C08a26C952E81681dAc861d6a2466');
+  await component.getByText(/read/i).click();
 
   await component.getByText(/wei/i).click();
 

ui/address/contract/ContractRead.tsx

 import { Alert, Flex } from '@chakra-ui/react';
+import { useRouter } from 'next/router';
 import React from 'react';
 
 import type { SmartContractReadMethod, SmartContractQueryMethodRead } from 'types/api/contract';
 
 import useApiFetch from 'lib/api/useApiFetch';
 import useApiQuery from 'lib/api/useApiQuery';
+import getQueryParamString from 'lib/router/getQueryParamString';
 import ContractMethodsAccordion from 'ui/address/contract/ContractMethodsAccordion';
 import ContentLoader from 'ui/shared/ContentLoader';
 import DataFetchAlert from 'ui/shared/DataFetchAlert';
@@ -17,15 +19,15 @@ import ContractMethodConstant from './ContractMethodConstant';
 import ContractReadResult from './ContractReadResult';
 import useWatchAccount from './useWatchAccount';
 
-interface Props {
-  addressHash?: string;
-  isProxy?: boolean;
-  isCustomAbi?: boolean;
-}
-
-const ContractRead = ({ addressHash, isProxy, isCustomAbi }: Props) => {
+const ContractRead = () => {
   const apiFetch = useApiFetch();
   const account = useWatchAccount();
+  const router = useRouter();
+
+  const tab = getQueryParamString(router.query.tab);
+  const addressHash = getQueryParamString(router.query.hash);
+  const isProxy = tab === 'read_proxy';
+  const isCustomAbi = tab === 'read_custom_methods';
 
   const { data, isPending, isError } = useApiQuery(isProxy ? 'contract_methods_read_proxy' : 'contract_methods_read', {
     pathParams: { hash: addressHash },
@@ -96,7 +98,7 @@ const ContractRead = ({ addressHash, isProxy, isCustomAbi }: Props) => {
       { isCustomAbi && <ContractCustomAbiAlert/> }
       { account && <ContractConnectWallet/> }
       { isProxy && <ContractImplementationAddress hash={ addressHash }/> }
-      <ContractMethodsAccordion data={ data } addressHash={ addressHash } renderItemContent={ renderItemContent }/>
+      <ContractMethodsAccordion data={ data } addressHash={ addressHash } renderItemContent={ renderItemContent } tab={ tab }/>
     </>
   );
 };

ui/address/contract/ContractWrite.pw.tsx

@@ -23,7 +23,7 @@ test('base view +@mobile', async({ mount, page }) => {
 
   const component = await mount(
     <TestApp>
-      <ContractWrite addressHash={ addressHash }/>
+      <ContractWrite/>
     </TestApp>,
     { hooksConfig },
   );

ui/address/contract/ContractWrite.tsx

+import { useRouter } from 'next/router';
 import React from 'react';
 import { useAccount, useWalletClient, useNetwork, useSwitchNetwork } from 'wagmi';
 
@@ -5,6 +6,7 @@ import type { SmartContractWriteMethod } from 'types/api/contract';
 
 import config from 'configs/app';
 import useApiQuery from 'lib/api/useApiQuery';
+import getQueryParamString from 'lib/router/getQueryParamString';
 import ContractMethodsAccordion from 'ui/address/contract/ContractMethodsAccordion';
 import ContentLoader from 'ui/shared/ContentLoader';
 import DataFetchAlert from 'ui/shared/DataFetchAlert';
@@ -17,18 +19,19 @@ import ContractWriteResult from './ContractWriteResult';
 import useContractAbi from './useContractAbi';
 import { getNativeCoinValue, prepareAbi } from './utils';
 
-interface Props {
-  addressHash?: string;
-  isProxy?: boolean;
-  isCustomAbi?: boolean;
-}
-
-const ContractWrite = ({ addressHash, isProxy, isCustomAbi }: Props) => {
+const ContractWrite = () => {
   const { data: walletClient } = useWalletClient();
   const { isConnected } = useAccount();
   const { chain } = useNetwork();
   const { switchNetworkAsync } = useSwitchNetwork();
 
+  const router = useRouter();
+
+  const tab = getQueryParamString(router.query.tab);
+  const addressHash = getQueryParamString(router.query.hash);
+  const isProxy = tab === 'write_proxy';
+  const isCustomAbi = tab === 'write_custom_methods';
+
   const { data, isPending, isError } = useApiQuery(isProxy ? 'contract_methods_write_proxy' : 'contract_methods_write', {
     pathParams: { hash: addressHash },
     queryParams: {
@@ -112,7 +115,7 @@ const ContractWrite = ({ addressHash, isProxy, isCustomAbi }: Props) => {
       { isCustomAbi && <ContractCustomAbiAlert/> }
       <ContractConnectWallet/>
       { isProxy && <ContractImplementationAddress hash={ addressHash }/> }
-      <ContractMethodsAccordion data={ data } addressHash={ addressHash } renderItemContent={ renderItemContent }/>
+      <ContractMethodsAccordion data={ data } addressHash={ addressHash } renderItemContent={ renderItemContent } tab={ tab }/>
     </>
   );
 };

ui/address/contract/ContractWriteResultDumb.tsx

@@ -82,7 +82,6 @@ const ContractWriteResultDumb = ({ result, onSettle, txInfo }: Props) => {
   return (
     <Box
       fontSize="sm"
-      pl={ 3 }
       mt={ 3 }
       alignItems="center"
       whiteSpace="pre-wrap"

ui/address/contract/types.ts

@@ -2,7 +2,10 @@ import type { SmartContractQueryMethodRead, SmartContractMethod } from 'types/ap
 
 import type { ResourceError } from 'lib/api/resources';
 
-export type MethodFormFields = Record<string, string>;
+export type MethodFormFields = Record<string, string | Array<string>>;
+export type MethodFormFieldsFormatted = Record<string, MethodArgType>;
+
+export type MethodArgType = string | boolean | Array<MethodArgType>;
 
 export type ContractMethodReadResult = SmartContractQueryMethodRead | ResourceError;
 

ui/address/contract/utils.test.ts

-import { prepareAbi } from './utils';
+import type { SmartContractMethodInput } from 'types/api/contract';
+
+import { prepareAbi, transformFieldsToArgs, formatFieldValues } from './utils';
 
 describe('function prepareAbi()', () => {
   const commonAbi = [
@@ -98,3 +100,100 @@ describe('function prepareAbi()', () => {
     expect(item).toEqual(commonAbi[2]);
   });
 });
+
+describe('function formatFieldValues()', () => {
+  const formFields = {
+    '_tx%0:nonce%0': '1 000 000 000 000 000 000',
+    '_tx%0:sender%1': '0xB375d4150A853482f25E3922A4C64c6C4fF6Ae3c',
+    '_tx%0:targets%2': [
+      '1',
+      'true',
+    ],
+    '_l2OutputIndex%1': '0xaeff',
+    '_paused%2': '0',
+    '_withdrawalProof%3': [
+      '0x0f',
+      '0x02',
+    ],
+  };
+
+  const inputs: Array<SmartContractMethodInput> = [
+    {
+      components: [
+        { internalType: 'uint256', name: 'nonce', type: 'uint256' },
+        { internalType: 'address', name: 'sender', type: 'address' },
+        { internalType: 'bool[]', name: 'targets', type: 'bool[]' },
+      ],
+      internalType: 'tuple',
+      name: '_tx',
+      type: 'tuple',
+    },
+    { internalType: 'bytes32', name: '_l2OutputIndex', type: 'bytes32' },
+    {
+      internalType: 'bool',
+      name: '_paused',
+      type: 'bool',
+    },
+    {
+      internalType: 'bytes32[]',
+      name: '_withdrawalProof',
+      type: 'bytes32[]',
+    },
+  ];
+
+  it('converts values to correct format', () => {
+    const result = formatFieldValues(formFields, inputs);
+    expect(result).toEqual({
+      '_tx%0:nonce%0': '1000000000000000000',
+      '_tx%0:sender%1': '0xB375d4150A853482f25E3922A4C64c6C4fF6Ae3c',
+      '_tx%0:targets%2': [
+        true,
+        true,
+      ],
+      '_l2OutputIndex%1': '0xaeff',
+      '_paused%2': false,
+      '_withdrawalProof%3': [
+        '0x0f',
+        '0x02',
+      ],
+    });
+  });
+
+  it('converts nested array string representation to correct format', () => {
+    const formFields = {
+      '_withdrawalProof%0': '[ [ 1 ], [ 2, 3 ], [ 4 ]]',
+    };
+    const inputs: Array<SmartContractMethodInput> = [
+      { internalType: 'uint[][]', name: '_withdrawalProof', type: 'uint[][]' },
+    ];
+    const result = formatFieldValues(formFields, inputs);
+
+    expect(result).toEqual({
+      '_withdrawalProof%0': [ [ 1 ], [ 2, 3 ], [ 4 ] ],
+    });
+  });
+});
+
+describe('function transformFieldsToArgs()', () => {
+  it('groups struct and array fields', () => {
+    const formFields = {
+      '_paused%2': 'primitive_1',
+      '_l2OutputIndex%1': 'primitive_0',
+      '_tx%0:nonce%0': 'struct_0',
+      '_tx%0:sender%1': 'struct_1',
+      '_tx%0:target%2': [ 'struct_2_0', 'struct_2_1' ],
+      '_withdrawalProof%3': [
+        'array_0',
+        'array_1',
+      ],
+    };
+
+    const args = transformFieldsToArgs(formFields);
+    expect(args).toEqual([
+      [ 'struct_0', 'struct_1', [ 'struct_2_0', 'struct_2_1' ] ],
+      'primitive_0',
+      'primitive_1',
+      [ 'array_0', 'array_1' ],
+    ]);
+  });
+});

ui/address/contract/utils.ts

 import type { Abi } from 'abitype';
+import _mapValues from 'lodash/mapValues';
 
-import type { SmartContractWriteMethod } from 'types/api/contract';
+import type { MethodArgType, MethodFormFields, MethodFormFieldsFormatted } from './types';
+import type { SmartContractMethodArgType, SmartContractMethodInput, SmartContractWriteMethod } from 'types/api/contract';
 
-export const getNativeCoinValue = (value: string | Array<unknown>) => {
-  const _value = Array.isArray(value) ? value[0] : value;
+export const INT_REGEXP = /^(u)?int(\d+)?$/i;
 
-  if (typeof _value !== 'string') {
-    return BigInt(0);
-  }
+export const BYTES_REGEXP = /^bytes(\d+)?$/i;
 
-  return BigInt(_value);
+export const ARRAY_REGEXP = /^(.*)\[(\d*)\]$/;
+
+export const getIntBoundaries = (power: number, isUnsigned: boolean) => {
+  const maxUnsigned = 2 ** power;
+  const max = isUnsigned ? maxUnsigned - 1 : maxUnsigned / 2 - 1;
+  const min = isUnsigned ? 0 : -maxUnsigned / 2;
+  return [ min, max ];
 };
 
-export const addZeroesAllowed = (valueType: string) => {
-  if (valueType.includes('[')) {
-    return false;
-  }
+export const formatBooleanValue = (value: string) => {
+  const formattedValue = value.toLowerCase();
+
+  switch (formattedValue) {
+    case 'true':
+    case '1': {
+      return 'true';
+    }
 
-  const REGEXP = /^u?int(\d+)/i;
+    case 'false':
+    case '0': {
+      return 'false';
+    }
+
+    default:
+      return;
+  }
+};
 
-  const match = valueType.match(REGEXP);
-  const power = match?.[1];
+export const getNativeCoinValue = (value: string | Array<unknown>) => {
+  const _value = Array.isArray(value) ? value[0] : value;
 
-  if (power) {
-    // show control for all inputs which allows to insert 10^18 or greater numbers
-    return Number(power) >= 64;
+  if (typeof _value !== 'string') {
+    return BigInt(0);
   }
 
-  return false;
+  return BigInt(_value);
 };
 
 interface ExtendedError extends Error {
@@ -75,3 +91,106 @@ export function prepareAbi(abi: Abi, item: SmartContractWriteMethod): Abi {
 
   return abi;
 }
+
+function getFieldType(fieldName: string, inputs: Array<SmartContractMethodInput>) {
+  const chunks = fieldName.split(':');
+
+  if (chunks.length === 1) {
+    const [ , index ] = chunks[0].split('%');
+    return inputs[Number(index)].type;
+  } else {
+    const group = chunks[0].split('%');
+    const input = chunks[1].split('%');
+
+    return inputs[Number(group[1])].components?.[Number(input[1])].type;
+  }
+}
+
+function parseArrayValue(value: string) {
+  try {
+    const parsedResult = JSON.parse(value);
+    if (Array.isArray(parsedResult)) {
+      return parsedResult as Array<string>;
+    }
+    throw new Error('Not an array');
+  } catch (error) {
+    return '';
+  }
+}
+
+function castValue(value: string, type: SmartContractMethodArgType) {
+  if (type === 'bool') {
+    return formatBooleanValue(value) === 'true';
+  }
+
+  const intMatch = type.match(INT_REGEXP);
+  if (intMatch) {
+    return value.replaceAll(' ', '');
+  }
+
+  const isNestedArray = (type.match(/\[/g) || []).length > 1;
+  if (isNestedArray) {
+    return parseArrayValue(value) || value;
+  }
+
+  return value;
+}
+
+export function formatFieldValues(formFields: MethodFormFields, inputs: Array<SmartContractMethodInput>) {
+  const formattedFields = _mapValues(formFields, (value, key) => {
+    const type = getFieldType(key, inputs);
+
+    if (!type) {
+      return value;
+    }
+
+    if (Array.isArray(value)) {
+      const arrayMatch = type.match(ARRAY_REGEXP);
+
+      if (arrayMatch) {
+        return value.map((item) => castValue(item, arrayMatch[1] as SmartContractMethodArgType));
+      }
+
+      return value;
+    }
+
+    return castValue(value, type);
+  });
+
+  return formattedFields;
+}
+
+export function transformFieldsToArgs(formFields: MethodFormFieldsFormatted) {
+  const unGroupedFields = Object.entries(formFields)
+    .reduce((
+      result: Record<string, MethodArgType>,
+      [ key, value ]: [ string, MethodArgType ],
+    ) => {
+      const chunks = key.split(':');
+
+      if (chunks.length > 1) {
+        const groupKey = chunks[0];
+        const [ , fieldIndex ] = chunks[1].split('%');
+
+        if (result[groupKey] === undefined) {
+          result[groupKey] = [];
+        }
+
+        (result[groupKey] as Array<MethodArgType>)[Number(fieldIndex)] = value;
+        return result;
+      }
+
+      result[key] = value;
+      return result;
+    }, {});
+
+  const args = (Object.entries(unGroupedFields)
+    .map(([ key, value ]) => {
+      const [ , index ] = key.split('%');
+      return [ Number(index), value ];
+    }) as Array<[ number, string | Array<string> ]>)
+    .sort((a, b) => a[0] - b[0])
+    .map(([ , value ]) => value);
+
+  return args;
+}

yarn.lock

@@ -13950,6 +13950,13 @@ react-jazzicon@^1.0.4:
   dependencies:
     mersenne-twister "^1.1.0"
 
+react-number-format@^5.3.1:
+  version "5.3.1"
+  resolved "https://registry.yarnpkg.com/react-number-format/-/react-number-format-5.3.1.tgz#840c257da9cb4b248990d8db46e4d23e8bac67ff"
+  integrity sha512-qpYcQLauIeEhCZUZY9jXZnnroOtdy3jYaS1zQ3M1Sr6r/KMOBEIGNIb7eKT19g2N1wbYgFgvDzs19hw5TrB8XQ==
+  dependencies:
+    prop-types "^15.7.2"
+
 react-redux@^8.1.2:
   version "8.1.3"
   resolved "https://registry.yarnpkg.com/react-redux/-/react-redux-8.1.3.tgz#4fdc0462d0acb59af29a13c27ffef6f49ab4df46"