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verifyTypedData ​

Action for verify that a typed data was signed by the provided address. It supports verifying typed data that were signed by either a Smart Contract Account or Externally Owned Account.

Import ​

ts
import { verifyTypedData } from '@wagmi/core'

Usage ​

ts
import { verifyTypedData } from '@wagmi/core'
import { domain, types } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  domain,
  types,
  message: {
    from: {
      name: 'Cow',
      wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
    },
    to: {
      name: 'Bob',
      wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
    },
    contents: 'Hello, Bob!',
  },
  primaryType: 'Mail',
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c',
})
// true
ts
// All properties on a domain are optional
export const domain = {
  name: 'Ether Mail',
  version: '1',
  chainId: 1,
  verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
} as const

// The named list of all type definitions
export const types = {
  Person: [
    { name: 'name', type: 'string' },
    { name: 'wallet', type: 'address' },
  ],
  Mail: [
    { name: 'from', type: 'Person' },
    { name: 'to', type: 'Person' },
    { name: 'contents', type: 'string' },
  ],
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

Parameters ​

ts
import { type VerifyTypedDataParameters } from '@wagmi/core'

address ​

Address

The Ethereum address that signed the original typed data.

ts
import { verifyTypedData } from '@wagmi/core'
import { domain, types } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  domain,
  types,
  message: {
    from: {
      name: 'Cow',
      wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
    },
    to: {
      name: 'Bob',
      wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
    },
    contents: 'Hello, Bob!',
  },
  primaryType: 'Mail',
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266', 
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c',
})
// true
ts
// All properties on a domain are optional
export const domain = {
  name: 'Ether Mail',
  version: '1',
  chainId: 1,
  verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
} as const

// The named list of all type definitions
export const types = {
  Person: [
    { name: 'name', type: 'string' },
    { name: 'wallet', type: 'address' },
  ],
  Mail: [
    { name: 'from', type: 'Person' },
    { name: 'to', type: 'Person' },
    { name: 'contents', type: 'string' },
  ],
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

domain ​

TypedDataDomain

The typed data domain.

ts
import { verifyTypedData } from '@wagmi/core'
import { types } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  domain: { 
    name: 'Ether Mail',
    version: '1',
    chainId: 1,
    verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
  },
  types,
  message: {
    from: {
      name: 'Cow',
      wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
    },
    to: {
      name: 'Bob',
      wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
    },
    contents: 'Hello, Bob!',
  },
  primaryType: 'Mail',
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c',
})
// true
ts
// The named list of all type definitions
export const types = {
  Person: [
    { name: 'name', type: 'string' },
    { name: 'wallet', type: 'address' },
  ],
  Mail: [
    { name: 'from', type: 'Person' },
    { name: 'to', type: 'Person' },
    { name: 'contents', type: 'string' },
  ],
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

types ​

The type definitions for the typed data.

ts
import { verifyTypedData } from '@wagmi/core'
import { domain } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  domain,
  types: { 
    Person: [
      { name: 'name', type: 'string' },
      { name: 'wallet', type: 'address' },
    ],
    Mail: [
      { name: 'from', type: 'Person' },
      { name: 'to', type: 'Person' },
      { name: 'contents', type: 'string' },
    ],
  },
  primaryType: 'Mail',
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c',
})
// true
ts
// All properties on a domain are optional
export const domain = {
  name: 'Ether Mail',
  version: '1',
  chainId: 1,
  verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

primaryType ​

string

The primary type to extract from types and use in value.

ts
import { verifyTypedData } from '@wagmi/core'
import { domain } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  domain,
  types: {
    Person: [
      { name: 'name', type: 'string' },
      { name: 'wallet', type: 'address' },
    ],
    Mail: [ 
      { name: 'from', type: 'Person' },
      { name: 'to', type: 'Person' },
      { name: 'contents', type: 'string' },
    ],
  },
  message: {
    from: {
      name: 'Cow',
      wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
    },
    to: {
      name: 'Bob',
      wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
    },
    contents: 'Hello, Bob!',
  },
  primaryType: 'Mail', 
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c',
})
// true
ts
// All properties on a domain are optional
export const domain = {
  name: 'Ether Mail',
  version: '1',
  chainId: 1,
  verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

message ​

Type inferred from types & primaryType.

The message to be verified.

ts
import { verifyTypedData } from '@wagmi/core'
import { domain, types } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  domain,
  types,
  message: { 
    from: {
      name: 'Cow',
      wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
    },
    to: {
      name: 'Bob',
      wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
    },
    contents: 'Hello, Bob!',
  },
  primaryType: 'Mail',
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c',
})
// true
ts
// All properties on a domain are optional
export const domain = {
  name: 'Ether Mail',
  version: '1',
  chainId: 1,
  verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
} as const

// The named list of all type definitions
export const types = {
  Person: [
    { name: 'name', type: 'string' },
    { name: 'wallet', type: 'address' },
  ],
  Mail: [
    { name: 'from', type: 'Person' },
    { name: 'to', type: 'Person' },
    { name: 'contents', type: 'string' },
  ],
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

signature ​

Hex | ByteArray

The signature that was generated by signing the typed data with the address's signer.

ts
import { verifyTypedData } from '@wagmi/core'
import { domain, types } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  domain,
  types,
  message: {
    from: {
      name: 'Cow',
      wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
    },
    to: {
      name: 'Bob',
      wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
    },
    contents: 'Hello, Bob!',
  },  
  primaryType: 'Mail',
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c', 
})
// true
ts
// All properties on a domain are optional
export const domain = {
  name: 'Ether Mail',
  version: '1',
  chainId: 1,
  verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
} as const

// The named list of all type definitions
export const types = {
  Person: [
    { name: 'name', type: 'string' },
    { name: 'wallet', type: 'address' },
  ],
  Mail: [
    { name: 'from', type: 'Person' },
    { name: 'to', type: 'Person' },
    { name: 'contents', type: 'string' },
  ],
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

chainId ​

config['chains'][number]['id'] | undefined

Only used when verifying a typed data that was signed by a Smart Contract Account. The ID of chain to check if the contract was already deployed.

ts
import { verifyTypedData } from '@wagmi/core'
import { mainnet } from '@wagmi/core/chains'
import { domain, types } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  chainId: mainnet.id, 
  domain,
  types,
  message: {
    from: {
      name: 'Cow',
      wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
    },
    to: {
      name: 'Bob',
      wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
    },
    contents: 'Hello, Bob!',
  },
  primaryType: 'Mail',
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c',
})
// true
ts
// All properties on a domain are optional
export const domain = {
  name: 'Ether Mail',
  version: '1',
  chainId: 1,
  verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
} as const

// The named list of all type definitions
export const types = {
  Person: [
    { name: 'name', type: 'string' },
    { name: 'wallet', type: 'address' },
  ],
  Mail: [
    { name: 'from', type: 'Person' },
    { name: 'to', type: 'Person' },
    { name: 'contents', type: 'string' },
  ],
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

blockNumber ​

bigint | undefined

Only used when verifying a typed data that was signed by a Smart Contract Account. The block number to check if the contract was already deployed.

ts
import { verifyTypedData } from '@wagmi/core'
import { domain, types } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  blockNumber: 12345678n, 
  domain,
  types,
  message: {
    from: {
      name: 'Cow',
      wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
    },
    to: {
      name: 'Bob',
      wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
    },
    contents: 'Hello, Bob!',
  },
  primaryType: 'Mail',
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c',
})
// true
ts
// All properties on a domain are optional
export const domain = {
  name: 'Ether Mail',
  version: '1',
  chainId: 1,
  verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
} as const

// The named list of all type definitions
export const types = {
  Person: [
    { name: 'name', type: 'string' },
    { name: 'wallet', type: 'address' },
  ],
  Mail: [
    { name: 'from', type: 'Person' },
    { name: 'to', type: 'Person' },
    { name: 'contents', type: 'string' },
  ],
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

blockTag ​

'latest' | 'earliest' | 'pending' | 'safe' | 'finalized' | undefined

Only used when verifying a typed data that was signed by a Smart Contract Account. The block number to check if the contract was already deployed.

ts
import { verifyTypedData } from '@wagmi/core'
import { domain, types } from './data'
import { config } from './config'

const valid = await verifyTypedData(config, {
  blockTag: 'latest', 
  domain,
  types,
  message: {
    from: {
      name: 'Cow',
      wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
    },
    to: {
      name: 'Bob',
      wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
    },
    contents: 'Hello, Bob!',
  },
  primaryType: 'Mail',
  address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  signature: '0x66edc32e2ab001213321ab7d959a2207fcef5190cc9abb6da5b0d2a8a9af2d4d2b0700e2c317c4106f337fd934fbbb0bf62efc8811a78603b33a8265d3b8f8cb1c',
})
// true
ts
// All properties on a domain are optional
export const domain = {
  name: 'Ether Mail',
  version: '1',
  chainId: 1,
  verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
} as const

// The named list of all type definitions
export const types = {
  Person: [
    { name: 'name', type: 'string' },
    { name: 'wallet', type: 'address' },
  ],
  Mail: [
    { name: 'from', type: 'Person' },
    { name: 'to', type: 'Person' },
    { name: 'contents', type: 'string' },
  ],
} as const
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

Return Type ​

ts
import { type VerifyTypedDataReturnType } from '@wagmi/core'

boolean

Wheather the signed message is valid for the given address.

Type Inference ​

With types setup correctly, TypeScript will infer the correct types for domain, message, and primaryType. See the Wagmi TypeScript docs for more information.

Error ​

ts
import { type VerifyTypedDataErrorType } from '@wagmi/core'

TanStack Query ​

ts
import {
  type verifyTypedDataData,
  type verifyTypedDataVariables,
  type verifyTypedDataMutate,
  type verifyTypedDataMutateAsync,
  verifyTypedDataMutationOptions,
} from '@wagmi/core/query'

Viem ​

Released under the MIT License.

Copyright © 2022-present weth, LLC