Using promise with GraphRequestManager - react-native

Question

Does anyone have an example on how to use promise with GraphRequestManager?
I get Cannot read property then of undefined error in my action creator.
function graphRequest(path, params, token=undefined, version=undefined, method='GET') {
return new Promise((resolve, reject) => {
new GraphRequestManager().addRequest(new GraphRequest(
path,
{
httpMethod: method,
version: version,
accessToken: token
},
(error, result) => {
if (error) {
console.log('Error fetching data: ' + error);
reject('error making request. ' + error);
} else {
console.log('Success fetching data: ');
console.log(result);
resolve(result);
}
},
)).start();
});
}
I call the above using my action creator
export function accounts() {
return dispatch => {
console.log("fetching accounts!!!!!!");
dispatch(accountsFetch());
fbAPI.accounts().then((accounts) => {
dispatch(accountsFetchSuccess(accounts));
}).catch((error) => {
dispatch(accountsFetchFailure(error));
})
}
}
I get 'Success fetching data:' in the console along with the result before the error. So the API call is made successfully. The error is after fetching the accounts in fbAPI.accounts().then((accounts) which I think is due to GraphRequestManager returning immediately instead of waiting.

Answer 1

I have a solution for you.
My provider look like this :
FBGraphRequest = async (fields) => {
const accessData = await AccessToken.getCurrentAccessToken();
// Create a graph request asking for user information
return new Promise((resolve, reject) => {
const infoRequest = new GraphRequest('/me', {
accessToken: accessData.accessToken,
parameters: {
fields: {
string: fields
}
}
},
(error, result) => {
if (error) {
console.log('Error fetching data: ' + error.toString());
reject(error);
} else {
resolve(result);
}
});
new GraphRequestManager().addRequest(infoRequest).start();
});
};
triggerGraphRequest = async () => {
let result = await this.FBGraphRequest('id, email');
return result;
}
That works great ! I let you adapt my solution to your system.