wallet_grantPermissions

type Request = {
  method: 'wallet_grantPermissions',
  params: [{
    /** 
     * Address of the account to grant permissions on. 
     * Defaults to the current account. 
     */
    address?: `0x${string}`
 
    /** Chain ID to grant permissions on. */
    chainId?: `0x${string}`
 
    /** Expiry of the permissions. */
    expiry: number
 
    /** Key to grant permissions to. Defaults to a wallet-managed key. */
    key?: {
      /** 
       * Public key. 
       * Accepts an address for `address` & `secp256k1` types. 
       */
      publicKey?: `0x${string}`,
      /** Key type. */
      type?: 'address' | 'p256' | 'secp256k1' | 'webauthn-p256', 
    }
    
    /** Permissions to grant. */
    permissions: {
      /** Call permissions. */
      calls: {
        /** Function signature or 4-byte signature. */
        signature?: string
        /** Authorized target address. */
        to?: `0x${string}`
      }[],
    },
  }]
}

type Response = {
  address: `0x${string}`,
  chainId: `0x${string}`,
  expiry: number,
  id: `0x${string}`,
  key: {
    publicKey: `0x${string}`,
    type: 'address' | 'p256' | 'secp256k1' | 'webauthn-p256',
  },
  permissions: {
    calls: {
      signature?: string,
      to?: `0x${string}`,
    }[],
  },
}

import RapidfireID from '@rapidfire/id'
import { parseEther, toHex } from 'viem'
 
const rapidfire = new RapidfireID()
const provider = rapidfire.getEthereumProvider()
 
const token = '0x706aa5c8e5cc2c67da21ee220718f6f6b154e75c'
 
const permissions = await provider.request({
  method: 'wallet_grantPermissions',
  params: [{
    expiry: Math.floor(Date.now() / 1000) + 7 * 24 * 60 * 60, // 1 week
    permissions: {
      calls: [{ 
        signature: 'transfer(address,uint256)',
        to: token
      }],
    },
  }],
})