我正在使用Expo和AWS Cognito以及AWS Amplify构建React Native应用程序,并且试图通过AWS使用Facebook,Google等进行登录
我可以创建用户并使用Cognito API登录。
但是,使用第三方需要使用Expo AuthSession功能。
该功能本身运行良好,并且能够一路从/ oauth2 / token端点检索适当的令牌。
但是,就Amplify而言(据我所知),该用户尚未登录,因此当我尝试获取Auth.currentAuthenticatedUser()时,将返回null。
// Open URL in a browser
openURL = async (url) => {
let result = await AuthSession.startAsync({ authUrl: url })
this.getTokenbyCode(result.params.code)
};
getTokenbyCode = async (code) => {
const details = {
grant_type: 'authorization_code',
code,
client_id: '10eavoe3ufj2d70m5m3m2hl4pl',
redirect_uri: AuthSession.getRedirectUrl()
}
const formBody = Object.keys(details)
.map(
key => `${encodeURIComponent(key)}=${encodeURIComponent(details[key])}`
)
.join("&");
await fetch(
'https://presentor.auth.us-west-2.amazoncognito.com/oauth2/token',
{
method: "POST",
headers: {
'Content-type': 'application/x-www-form-urlencoded;charset=UTF-8'
},
body: formBody
}
)
.then(async (res) => {
console.log('res: ', res);
let resJSON = await res.json();
let idToken = await resJSON.id_token;
let decodedToken = jwt(idToken);
let userData = {
Username : decodedToken["cognito:username"],
Pool : Auth.userPool
}
})
.catch(error => {
console.log('error: ', error);
});
}
当我解码令牌时,可以看到预期的有效载荷,但是,例如,如果我想利用API刷新令牌(如果令牌过期),我必须手动解决(检查过期并检索新的令牌)令牌(如果已过期)。
我缺少基本的东西吗?
答案 0 :(得分:0)
好,我知道了。不确定这是否是正确的路径,但是它很干净而且可以工作,所以我很满意。
从该用户会话创建用户
await fetch(
'TOKEN ENDPOINT',
{
method: "POST",
headers: {
'Content-type': 'application/x-www-form-urlencoded;charset=UTF-8'
},
body: formBody
}
)
.then(async (res) => {
const IdToken = new CognitoIdToken({ IdToken: tokenRequestJson.id_token });
const AccessToken = new CognitoAccessToken({ AccessToken: tokenRequestJson.access_token });
const RefreshToken = new CognitoRefreshToken({ RefreshToken: tokenRequestJson.refresh_token })
try {
let userSession = new CognitoUserSession({ IdToken, AccessToken, RefreshToken });
console.log('userSession: ', userSession);
const userData = {
Username: userSession.idToken.payload.email,
Pool: userPool
};
console.log('userData: ', userData);
cognitoUser = new CognitoUser(userData);
cognitoUser.setSignInUserSession(userSession);
cognitoUser.getSession((err, session) => { // You must run this to verify that session (internally)
if (session.isValid()) {
console.log('session is valid');
this.setState({user: cognitoUser})
this.props.navigation.navigate('AuthLoading')
} else {
console.log('session is not valid: ', session);
}
})
}
catch (FBSignInError) {
console.log('FBSignInError: ', FBSignInError)
}
})
.catch(fetchError => console.log('fetchError: ', fetchError))