DID

DID Login Process

1 Check if the address has a DID

 final client = Provider.of<Client>(context, listen: false);
 SDNDIDListResponse response = await client.getDIDList(address: address);

Input Parameters:

Name	Type	Description	Required
address	String	wallet address	true

Output Parameters:

SDNDIDListResponse

Name	Type	Description	Required
data	String	List of DIDs	true

2 Log into a DID or register an address.

Choose DID or use the address to log in. If the interface array is empty, log in with the address. Otherwise, use the first element of the array as the 'did' parameter.

 final client = Provider.of<Client>(context, listen: false);
 String responseStr;
 if (response1.data.isNotEmpty) {
   responseStr = await client.postPreLoginDID(DID: response1.data[0]);
 } else {
   responseStr = await client.postPreLoginDID(address: address);
 }

Input Parameters:

Name	Type	Description	Required
DID	String	DID string, choose either DID or wallet address	False
address	String	wallet address, choose either DID or wallet address	False

Output Parameters: PreloginResponse

Name	Type	Description	Required
DID	String	user DID (existed or newly created)	true
message	String	message to be signed	true
updated	String	update time	true
random_server	string	nounce returned from the node	true

3 Sign the message that was returned in step 2

    String str = responsesdn.message; //responsesdn.message
    String signMessage = EthSigUtil.signPersonalMessage(
    privateKey: privKey, message: convertStringToUint8List(str));

Input Parameters: LoginRequest

Name	Type	Description	Required
type	String	Login type (current value: m.login.did.identity)	true
updated	String	update time returned by the pre_login	true
identifier	IdentifierModel	login information	true
device_id	String	device id, no need for new device	false

IdentifierModel Type:

Name	Type	Description
DID	String	User DID
token	String	To sign the message returned by pre_login, you can call the EthSigUtil.signPersonalMessage function from the DID class to perform the signature.

Output Parameters:

SDNDIDLoginResponse

Name	Type	Description	Required
access_token	String	access token	true
user_id	String	user ID	true
device_id	String	device id	true

4 Log out

 Future<void> logout() async {
  try {
    await super.logout();
  } catch (e, s) {
    Logs().e('Logout failed', e, s);
    rethrow;
  } finally {
    await clear();
  }
}

Input Parameters:

Name	Type	Description	Required
token	String	Login type (current value: m.login.did.identity)	true