Parse-sdk-js: currentUser() not working on React Native

[jinuem]

I tired to call
Parse.Users.currentUser()

But i get error like
"Cannot call currentUser() when using a platform with an async storage system. Call currentUserAsync() instead."

Even i tried to look into Parse-React Repo. That is not active anymore and doesnt support 1.9 or above.

Even currentUserAsync() not working.. :(

[flovilmart]

WHAT do you mean not working? Can you provide more details please?

[jinuem]

This is the Small code i tried to run in my RN 0.48

var currentUser = Parse.User.currentUser();
        if (currentUser) {
            // do stuff with the user
            console.log("currentUser")
        } else {
            // show the signup or login page
            console.log("Not logged in")
        }

I get this error:

[Unhandled Promise rejection: Error: Cannot call currentUser() when using a platform with an async storage system. Call currentUserAsync() instead.]

[flovilmart]

Which is the 1st part, what happens when you call the suggested method?

[jinuem]

Ok Actually i am first calling facebook api to get details and wanted to login the user . Here is my code. I am using async function.

//Facebook Login
```
async fbLogIn() {
this.setState({isLoggingIn : true});
const { type, token,expires } = await Expo.Facebook.logInWithReadPermissionsAsync(FbAppId, {
behavior:"native"
});

if (type === 'success') {
  // Get the user's name using Facebook's Graph API
  const response = await fetch(
    `https://graph.facebook.com/v2.10/me?fields=id,name,friends,email&access_token=${token}`);
    let expiresUTCSeconds = expires;
    let expireDate = new Date(0); // The 0 there is the key, which sets the date to the epoch
    expireDate.setUTCSeconds(expiresUTCSeconds);
    //Forming UserDetails
    console.log('response')
    console.log(response)
    let fbResponse = await response.json();
    console.log(fbResponse)
    let userDetails = {fbToken: token, fbExpire: expireDate,name: fbResponse.name, id:  fbResponse.id ,email:fbResponse.email};

    //Storing local
    await AsyncStorage.setItem(USER_DETAILS, JSON.stringify(userDetails));
    await AsyncStorage.setItem(USER_STATE, "true")


    // // these are the data from the successful FB login we will pass to Parse.FacebookUtils.logIn instead of null
    // // based on https://github.com/ParsePlatform/ParseReact/issues/45#issuecomment-111063927
    let authData = {
      id: userDetails.id,
      access_token: userDetails.fbToken,
      expiration_date: userDetails.fbExpire
    };

    var userid = userDetails.id;
    var email = userDetails.email;
    var profilename = userDetails.name;


    Parse.User.current().set("userid", userid);
    Parse.User.current().set("email", email);
    Parse.User.current().set("profilename", profilename);
    Parse.User.current().save();

  this.setState({isLoggingIn : false});
  this.props.navigation.navigate("SignedIn")
} else {
  Alert.alert(
    'Facebook Login Failed!',
    `Error 102`,
  );
  this.setState({isLoggingIn : false});
}

}

```

The Problem is i am getting the following error when i use Parse.User.current() inside async function.

[Unhandled Promise rejection: Error: Cannot call currentUser() when using a platform with an async storage system. Call currentUserAsync() instead.]

[flovilmart]

Why don’t you call currentUserAsync() as it’s what’s exposed by the SDK?

[jinuem]

Yes i did tried out..

       Parse.User. currentUserAsync().set("userid", userid);
       Parse.User. currentUserAsync().set("email", email);
       Parse.User. currentUserAsync().set("profilename", profilename);
       Parse.User. currentUserAsync().save();

it throws it not a funciton.
but when i use
Parse.User. currentAsync();
It returns the User details.

but still it throwns set is not a function.
Parse.User.currentAsync().set("userid", userid);

Seriously, i dont know what i am missing here.

[flovilmart]

I believe currentUserAsync() returns a Promise. So this should be:

Parse.User.currentAsync().then(function(user) {
    user.set(...);
    ...
    return user.save();
});

[jinuem]

wow.. that worked :)

[MiLeung]

Parse.User.currentAsync() still isn't in the docs for some reason

[jinuem]

@MiLeung
Yeah. Even I was confused bcoz of no documentation. :) Hope they will add soon.

[montymxb]

@MiLeung @jinuem noted the docs issue and opened up a PR to resolve that.

[montymxb]

Alright, should be good now. This is now documented in the current user section of the JS docs. Thanks for bringing this to our attention!

[YousefAlsbaihi]

You can't call currentAsync outside async function, for example in your facebook login code you used async fbLogIn() {...} so since this is async function, you have to use currentAsync