Develop Reference

YQL AJAX cross domain request stopped working

I have been using the following code to successfully read the contents of an external webpage as a string - I haven't used this program in a month or so but it has suddenly stopped working even though the code has not been changed. I suspect the YQL API has been updated but I couldn't find any documentation that I could understand on this. (I am a beginner at JS). If someone could point me to how to update my code it would be much appreciated!
Code:
function formSubmitted(raceID) {
if(raceID.length < 4 && raceID > 0){
savedRaceID = raceID;
raceUrl = "http://www.bbk-online.net/gpt/lap"+raceID+".htm";
jQuery.ajax = (function(_ajax){
var protocol = location.protocol,
hostname = location.hostname,
exRegex = RegExp(protocol + '//' + hostname),
YQL = 'http' + (/^https/.test(protocol)?'s':'') + '://query.yahooapis.com/v1/public/yql?callback=?',
query = 'select * from html where url="{URL}" and xpath="*"';
function isExternal(url) {
return !exRegex.test(url) && /:\/\//.test(url);
}
return function(o) {
var url = o.url;
if ( /get/i.test(o.type) && !/json/i.test(o.dataType) && isExternal(url) ) {
// Manipulate options so that JSONP-x request is made to YQL
o.url = YQL;
o.dataType = 'json';
o.data = {
q: query.replace(
'{URL}',
url + (o.data ?
(/\?/.test(url) ? '&' : '?') + jQuery.param(o.data)
: '')
),
format: 'xml'
};
// Since it's a JSONP request
// complete === success
if (!o.success && o.complete) {
o.success = o.complete;
delete o.complete;
}
o.success = (function(_success){
return function(data) {
if (_success) {
// Fake XHR callback.
_success.call(this, {
responseText: data.results[0].replace(/<script[^>]+?\/>|<script(.|\s)*?\/script>/gi, '')
//THE ERROR IS COMING FROM ABOVE - REPLACE IS BEING CALLED ON A NULL OBJECT??
//SUGGESTS NO DATA RETURNED?
}, 'success');
}
};
})(o.success);
}
return _ajax.apply(this, arguments);
};
})(jQuery.ajax);
$.ajax({
url: raceUrl,
type: 'GET',
success: function(res) {
processData(res.responseText);
}
});
}
else{
alert("Please enter a valid race number...");
}
}
I have highlighted where the error is coming from - it appears that the function is not returning any data?

HTTP error "AUTH_CSFR_ERROR" with POST to Todoist API via Google Apps Script

I'm attempting to query items out of the Todoist API from Google Apps Script, mimicking a curl POST.
I originally tried to make OAuth2 work, but tokens were not persistent, and I instead opted for the API's method of using individual API tokens to exchange for a valid token.
Using App Script's UrlFetchApp class, I'm attempting to construct at POST request for Todoist's API to retrieve task items, and my getTodoistToken() function is indeed retrieving a valid token response, but the POST command is issuing the following 403:
"error_tag":"AUTH_CSRF_ERROR","error_code":0,"http_code":403,"error_extra":{"access_type":"web_session"},"error":"AUTH_CSRF_ERROR"}
Can anyone recommend a solution? Thanks so much, code below:
function getTodoistToken() {
var url = "https://todoist.com/api/access_tokens/migrate_personal_token";
var data = {
"client_id": "[my unique client_id]",
"client_secret": "[my unique client_secret]",
"personal_token":"[my API token from Todoist dashboard]",
"scope": "data:read"
};
var payload = JSON.stringify(data);
var headers = {
"Content-Type":"application/json",
};
var options = {
"method":"POST",
"contentType" : "application/json",
"headers": headers,
"payload" : payload
};
var response = UrlFetchApp.fetch(url, options);
var json = response.getContentText();
var data = JSON.parse(json);
return(data.access_token);
}
function getTodoistTasks(){
var apiURL = "https://todoist.com/API/v7/sync";
var data = {
"token" : getTodoistToken(),
"sync_token" : '*',
"resource_types" : '["items"]'
};
var payload = JSON.stringify(data);
Logger.log(payload);
var headers = {
"Content-Type":"application/json",
};
var options = {
"method":"POST",
"contentType" : "application/json",
"headers": headers,
"payload" : payload,
"muteHttpExceptions" : true
};
var response = UrlFetchApp.fetch(apiURL, options);
Logger.log(response.getContentText());
}

I have figured out the answer. The Todoist API documentation is bit ambiguous, seeming written around POST requests, but to download (sync) a full list of tasks, a simple URL-encoded GET request, as constructed below, did the trick:
function getTodoistTasks(){
var apiURL = "https://todoist.com/API/v7/sync";
var queryString = "?token=" + getTodoistTokenRev() + "&sync_token=%27*%27&resource_types=[%22items%22]";
//Get params
var fetchParameters = {};
fetchParameters.method = 'get';
fetchParameters.contentType = 'x-www-form-urlencoded';
fetchParameters.muteHttpExceptions = true;
//make request and return
var response = UrlFetchApp.fetch(apiURL + queryString, fetchParameters);
var syncData = JSON.parse(response.getContentText());
return(syncData);
}

And if anyone is looking for an example of creating an item (a task in this case), as I was, here's the code for that (note you need to specify a date_string and due_date for it to appear in the web UI):
var API_URL = "https://todoist.com/API/v7/sync"
var BASE_QUERY = "?token=" + TOKEN
function addTask() {
// var taskName = SpreadsheetApp.getUi().prompt('What the task\'s name?')
var taskName = 'Test 1652'
var commands = encodeURI(JSON.stringify([{
"type": "item_add",
"temp_id": uuidv4(),
"uuid": uuidv4(),
"args": {
"content": taskName,
"date_string": "today",
"due_date_utc": "2017-12-2T18:00",
}
}]))
var queryString = BASE_QUERY + '&commands=' + commands
var options = {
method: 'post',
contentType: 'x-www-form-urlencoded',
muteHttpExceptions: true}
var response = UrlFetchApp.fetch(API_URL + queryString, options)
if (response.getResponseCode() !== 200) {
var content = response.getContentText()
throw new Error('URL fetch failed: ' + content)
}
var syncData = JSON.parse(response.getContentText())
return syncData
// Private Functions
// -----------------
function uuidv4() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
return v.toString(16);
});
}
} // addTask()

Why .getjson doesnt work but .ajax does?

I'm working on Free Code Camp's wiki viewer and trying to figure out the api call. I thought getjson and ajax were equivalent but maybe i'm doing something wrong.
So at first I used this getjson code:
$.getJSON('http://en.wikipedia.org/w/api.php?action=query&list=search&format=json&srsearch=' + search,
function(api){
console.log(api);
}, 'jsonp');
but it returned this error: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access.
Then I used ajax with the same url:
$.ajax({
url: 'http://en.wikipedia.org/w/api.php?action=query&list=search&format=json&srsearch=' + search,
dataType: 'jsonp',
success: getWiki //just console logs the api
});
and this seemed to return the api call. Can anyone explain why getjson didnt work but ajax did?

You're missing the required callback=? query parameter to force $.getJSON to perform a JSONP request
$.getJSON('http://en.wikipedia.org/w/api.php?callback=?', {
action: 'query',
list: 'search',
format: 'json',
srsearch: search
}, api => {
// response handler
})
See http://api.jquery.com/jquery.getjson/#jsonp

This is my solution also I left an alternative using only JavaScript
NOTE I added this &origin=* param in the url to make it work using this the original jQuery code.
var search = 'php';
var searchURL = 'https://en.wikipedia.org/w/api.php?action=query&format=json&generator=search&origin=*&gsrsearch=' + search;
// Using JSON
$.getJSON(searchURL, function(data){
var read = JSON.stringify(data);
console.log('Using jQuery: ' + read);
}, 'jsonp');
// Using JavaScript
var getJSON = function(url, callback) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'json';
xhr.onload = function() {
var status = xhr.status;
if (status == 200) {
callback(null, xhr.response);
} else {
callback(status);
}
};
xhr.send();
};
getJSON(searchURL, function(err, data) {
if (err != null) {
alert('Something went wrong: ' + err);
} else {
var read = JSON.stringify(data);
console.log('Using JavaScript: ', read);
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Google Script GET request issue

I'm trying to get a Google script (on a Google Sheet) to retrieve data from Float API. The endpoint and key are fine (tested and all works as expected on Postman) but it keeps returning 401.
Below is my code:
var API_KEY = "{ENTER YOUR KEY HERE}";
var ENDPOINT_PROJECTS = "https://api.float.com/api/v1/projects";
function getProjects() {
var headers = {
"Authorization" : "Bearer " + API_KEY,
};
var requestData = {
"method" : "GET",
"headers": headers,
"muteHttpExceptions": false
};
// Get the data
var fetchResponse = UrlFetchApp.fetch(ENDPOINT_PROJECTS);
var responseCode = fetchResponse.getResponseCode();
if (responseCode == "200") {
var result = JSON.parse(fetchResponse.getContentText());
} else {
ui.alert("Error when attempting to fetch the list of spaces.");
}
}

Okay looked like I completely missed a small yet very important part...even though I created an object to hold the method and headers I was not passing this into the actual fetch!!! (This is what happens when you attempt to do a quick script at the end of the day)
So instead of this
var fetchResponse = UrlFetchApp.fetch(ENDPOINT_PROJECTS);
we have this:
var fetchResponse = UrlFetchApp.fetch(ENDPOINT_PROJECTS, requestData);

I can't to process response to a jsonp request

I have url http://translate.google.ru/translate_a/t?client=x&text=enter text&sl=en&tl=pl
If you will go through this link in response you will have js file
with text:
{"sentences":[{"trans":"wprowadzania tekstu","orig":"enter text","translit":"","src_translit":""}],"src":"en","server_time":80}
I created ajax request
function GoogleTranslateItem(sourceText, langFrom, langTo) {
$.ajax({
url: 'http://translate.google.ru/translate_a/t',
data: { client: "x", text: sourceText, sl: langFrom, tl: langTo },
dataType: 'jsonp',
jsonpCallback: "getData",
success: function (data) {
alert("Success");
}
});
function getData(data) {
var dataJson = data;
alert('bingo');
}
when the answer comes from server. I can't to process it
in browser shows js error.
Syntax error at line 1 while loading:
{"sentences":[{"trans":"вход вых
------------^
expected ';', got ':'
Linked script compilation
How can i process this response?

I think you should take a look at this (http://javascriptweblog.wordpress.com/2010/11/29/json-and-jsonp/)
var jsonp = {
callbackCounter: 0,
fetch: function(url, callback) {
var fn = 'JSONPCallback_' + this.callbackCounter++;
window[fn] = this.evalJSONP(callback);
url = url.replace('=JSONPCallback', '=' + fn);
var scriptTag = document.createElement('SCRIPT');
scriptTag.src = url;
document.getElementsByTagName('HEAD')[0].appendChild(scriptTag);
},
evalJSONP: function(callback) {
return function(data) {
var validJSON = false;
if (typeof data == "string") {
try {validJSON = JSON.parse(data);} catch (e) {
/*invalid JSON*/}
} else {
validJSON = JSON.parse(JSON.stringify(data));
window.console && console.warn(
'response data was not a JSON string');
}
if (validJSON) {
callback(validJSON);
} else {
throw("JSONP call returned invalid or empty JSON");
}
}
}
}

The response from http://translate.google.ru/translate_a/t?client=x&text=entertext&sl=en&tl=pl i JSON, not JSON-P. Accessing JSON-data this way is against the cross-site policies, as the browsers prevent such responses to be returned to the client.
As you are allowed to include scripts from other domains, JSON-P is a way of transfering data as javascript (not JSON). You need to find an API supporting JSON-P (I'm not sure if the Translate API supports JSON-P) or create a proxy on the same domain as your client application to access the JSON data.
Read more about the JSON-P protocol here: http://json-p.org/
To create a proxy, you'll need to implement a service that fetches the content of the Translate API and reprint it in the response.
Example:
/jsonProxy?text=foo
Should return the contents of http://translate.google.ru/translate_a/t?client=x&text=entertext&sl=en&tl=pl
...but you won't have to access it from another domain.

I think the MIME type of the response should be 'application/json'