verifyTypedData
Verify the signature of the typed data value with types data structure for domain using the TIP-712 specification.
Usage
tronWeb.trx.verifyTypedData(domain, types, value, signature, address);
Parameters
Parameters | Parameter Description | Data Type |
---|---|---|
domain | Domain separator. This field is to prevent collisions with other transactions on the network or messages with the same structure. | JSON |
types | Type definition of Typed Data | JSON |
value | The value of Typed Data | JSON |
privateKey | The private key used for signing. Optional. The default value is the private key passed in when constructing tronweb object. | String |
Return
bool - true if verify successfully, else return error Signature does not match.
Example
// All properties on a domain are optional
const domain = {
name: 'TRON Mail',
version: '1',
chainId: '0x2b6653dc',
verifyingContract: 'TUe6BwpA7sVTDKaJQoia7FWZpC9sK8WM2t'
};
// The named list of all type definitions
const types = {
Person: [
{ name: 'name', type: 'string' },
{ name: 'wallet', type: 'address' }
],
Mail: [
{ name: 'from', type: 'Person' },
{ name: 'to', type: 'Person' },
{ name: 'contents', type: 'string' }
]
};
// The data to sign
const value = {
from: {
name: 'Cow',
wallet: 'TUg28KYvCXWW81EqMUeZvCZmZw2BChk1HQ'
},
to: {
name: 'Bob',
wallet: 'TT5rFsXYCrnzdE2q1WdR9F2SuVY59A4hoM'
},
contents: 'Hello, Bob!'
};
let signature = await tronWeb.trx._signTypedData(domain, types, value);
const tail = signature.substring(128, 130);
if (tail == '01') {
signature = signature.substring(0,128)+'1c';
} else if(tail == '00') {
signature = signature.substring(0,128)+'1b';
}
const result = await tronWeb.trx.verifyTypedData(domain, types, value, signature);
// verification result: true