如何使用AWS在flutter中实现无密码登录

Question

我无法知道如何使用cognito在扑动与OTP做无密码登录。我只是需要帮助的颤振代码发送OTP和回答真正的挑战者与任何工作的认知/放大包。

Answer 1

我可以使用这个包:amazon_cognito_identity_dart_2

//Create a cognito user
CognitoUser cognitoUser1;
//Send OTP
cognitoUser1 = CognitoUser(phoneNumber.text, widget.userPool);
try {
CognitoUserSession cognitoUserSession =
await cognitoUser1.initiateAuth(
AuthenticationDetails(
authParameters: [
AttributeArg(
name: 'phone_number',
value: phoneNumber.text,
),
],
),
);
} catch (cognitoUserCustomChallengeException) {}

//Authenticate the user
CognitoUserSession cognitoUserSession = await cognitoUser1.sendCustomChallengeAnswer(otp.text);
print("jwtToken " + cognitoUserSession.accessToken.jwtToken);
print("refreshToken " + cognitoUserSession.refreshToken.token);