// Helper functions for accessing the instagram API.

var https = require('https');

var Parse = require('parse/node').Parse;

// Returns a promise that fulfills iff this user id is valid.

function validateAuthData(authData) {

return request("users/self/?access_token="+authData.access_token)

.then((response) => {

if (response && response.data && response.data.id == authData.id) {

return;

}

throw new Parse.Error(

Parse.Error.OBJECT_NOT_FOUND,

'Instagram auth is invalid for this user.');

});

}

// Returns a promise that fulfills iff this app id is valid.

function validateAppId() {

return Promise.resolve();

}

// A promisey wrapper for api requests

function request(path) {

return new Promise(function(resolve, reject) {

https.get("https://api.instagram.com/v1/" + path, function(res) {

var data = '';

res.on('data', function(chunk) {

data += chunk;

});

res.on('end', function() {

data = JSON.parse(data);

resolve(data);

});

}).on('error', function(e) {

reject('Failed to validate this access token with Instagram.');

});

});

}

module.exports = {

validateAppId: validateAppId,

validateAuthData: validateAuthData

};