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Google GMail API Error: No label add or removes specified

I'm building a small personal web app using the google API, but I'm having an issue with this endpoint: https://developers.google.com/gmail/api/reference/rest/v1/users.messages/modify
I'm trying to invoke this through AJAX, but it keeps telling me:
No label add or removes specified
I feel like I'm following the documentation specifications here, and the error isn't giving me any more information; I'm not sure what to do.
I've also tried adding the addLabelIds argument with no data, but it doesn't change anything.
I've tried looking this issue up but all of the solutions seem to relate to quirks of other API implementations and don't really seem to apply to my situation. Any help would be appreciated; it's pretty basic, but here's my AJAX requests code:
$.ajax({
url: "https://gmail.googleapis.com/gmail/v1/users/me/messages/" + messageId + "/modify",
beforeSend: function(xhr) {
xhr.setRequestHeader("Authorization", "Bearer " + mailToken);
},
method: "POST",
data: {
"removeLabelIds": ["UNREAD"]
},
success: function(data) {
ele.removeClass("unread");
},
fail: function(data) {
console.log(data);
}
});

Okay, I found the solution myself; I'm just going to post it here in-case anyone else is having this issue.
The issue was that you have to make the request using Content-Type: application/json, and POST the request as a JSON string.
Here's the modified AJAX request that worked.
$.ajax({
url: "https://content-gmail.googleapis.com/gmail/v1/users/me/messages/" + messageId + "/modify?alt=json",
beforeSend: function (xhr) {
xhr.setRequestHeader("Authorization", "Bearer " + mailToken);
xhr.setRequestHeader("Content-Type", "application/json");
},
method: "POST",
data: JSON.stringify({
"removeLabelIds": [
"UNREAD"
]
}),
success: function(data) {
ele.removeClass("unread");
},
fail: function(data) {
console.log(data);
}
});

REST request errors in Jquery but not REST Client

I am trying to use the JIRA REST API to preform some requests. One of the first things that you must do, according the docs, is authenticate in some way.
Atlassian offers 2 methods; Basic Auth and Cookie Based Auth, the later of which uses cookies to establish a session.
The issue comes into play when I involve Jquery/JS.
Here is the request when preformed in ARC (Advanced Rest Client) for Chrome:
If I run that request, I will get a HTTP 200 response with the correct JSON, which is what I want.
However, when I attempt to do this with Jquery/JS, I recieve an error every time.
Here is that code:
function cookieLogin() {
//Grab username and password from the fields on the page
var user = $("#loginUsername").val();
var pass = $("#loginPassword").val();
$.ajax({
//URL
url: baseURL + path,
//Method
//type: 'POST', //analogous to 'method'
method: 'POST',
//Headers
accept: 'application/json',
dataType: 'application/json',
contentType: 'application/json',
//Payload to be sent
data:
{
"username": "admin",
"password": "admin"
},
//Responses to HTTP status codes
statusCode: {
200: function () {
alert("Success!");
},
401: function() {
alert("Invalid Credentials");
},
403: function () {
alert("Failed due to CAPTCHA requirement/throttling.")
}
},
success: function (data) {
var result = jQuery.parseJSON(data);
console.log(result);
},
error: function(jqXHR, textStatus, errorThrown) {
alert("Error!!!");
console.log(jqXHR);
console.log(textStatus);
console.log(errorThrown);
}
});
I have assured that the URL is correct. As you can see, I also hard-coded the credentials (this is merely a test page) just to test as well. I'm not sure why I am receiving errors in JS when I replicated the same thing that worked in ARC.

As per the documentation, I am seeing that "accept" should be "accepts" and "dataType" takes the string "json", not "application/json".

Javascript with SharePoint 2013 REST Endpoint "INSERT" into List?

Here are what i'm going to use:
SharePoint 2013
Javascript
REST Endpoint
SharePoint List (called: "Announcements")
WebSite (called: "example.com")
Refs:
http://www.plusconsulting.com/blog/2013/05/crud-on-list-items-using-rest-services-jquery/
https://msdn.microsoft.com/EN-US/library/dn292552.aspx
Very simply:
How do i INSERT a new item (row) inside the List please?
I tried:
$.ajax({
url: "https://example.com/_api/web/lists/getbytitle('Announcements')/items",
type: "POST",
contentType: "application/json;odata=verbose",
data: JSON.stringify( { '__metadata': { 'type': 'SP.Data.AnnouncementListItem' }, "Title": "New Announcement!" } ),
headers: {
"Accept": "application/json;odata=verbose",
"Authorization": "Bearer " + accessToken
"X-RequestDigest": form digest value,
"IF-MATCH": etag,
},
success: function (data) {
console.log(data);
},
error: function (data) {
console.log(data);
}
});
Then i know a lot of things go wrong especially in headers section. But what does it mean by:
Authorization
accessToken
X-RequestDigest
IF-MATCH
.. and then HOW TO get these values (with JavaScript)? So that:
What are always the exact required fields there?
And how/where to get these values from?
I still can not find a simple and complete example about doing this Update / Insert properly.

So there are two ways that I have used to submit an item to a list, the jQuery library SPServices and REST API's. SPServices is really well documented here. Using REST API's is much faster and pretty easy too!
function createListItem(itemProperties, success, failure) {
$.ajax({
url: "https://example.com/_vti_bin/listdata.svc/Announcements",
type: "POST",
processData: false,
contentType: "application/json;odata=verbose",
data: JSON.stringify(itemProperties),
headers: {
"Accept": "application/json;odata=verbose"
},
success: function(data) {
success(data.d);
},
error: function(data) {
// failure(data.responseJSON.error);
alert("error");
}
});
}
First thing I am doing above is creating a function that you can call whenever you want to create a new list item. The parameter itemProperties can be populated with the fields which you need, see below.
var Title = "Title";
var Answer = "Answer";
var userid = _spPageContextInfo.userId;
var taskProperties = {
'Title': Title,
'Answer': Answer,
'UserId': userid
};
Then all we have to do is call this function with the new variable we just declared.
createListItem(taskProperties, function(task) {
alert("Thank you for your input!");
},
function(error) {
console.log(JSON.stringify(error));
}
);

Actually jsfiddle which you have posted in the previous commend is not the REST . you just use the SharePoint client object model. find below the REST API model I hope it will work
var cat = {
"__metadata": { "type": ItemType },
"Title": "GenIT-Issue",
}
$.ajax({
url: _spPageContextInfo.siteAbsoluteUrl + "/_api/web/lists/getbytitle('Tickets')/items",
type: "POST",
contentType: "application/json;odata=verbose",
data: JSON.stringify(cat),
headers: {
"Accept": "application/json;odata=verbose",
"X-RequestDigest": $("#__REQUESTDIGEST").val()
},
success: function (data) {
},
error: function (data) {
}
});
I run this code inside my SharePoint page so there is no authentication required. it will run on current user privilege

Paypal Java script integration

Want to integrate Paypal with my mobile web application. I tried to get the access token using client id and secret id but unable to get the access token.
Below is the sample Ajax call with I am making to retrieve the access token.
function getAccessToken(){
$.ajax({
url:"https://api.sandbox.paypal.com/v1/oauth2/token/",
type:"POST",
data : {"grant_type":"client_credentials"},
beforeSend: function (request)
{
request.setRequestHeader("Accept", "application/json");
request.setRequestHeader("Accept-Language", "en_US");
request.setRequestHeader("Authorization", "abc XXXXX:XXXXXXXXXXXXX");
},
success: function(data) {
alert(data);
},
error: function(e, messgae,type){
alert("Error" + e +" "+messgae+" type "+type);
}
});
I am unable to retrive the access token from the server.
Can anyone please tell me how can I integrate Paypal with my mobile web application using java script?

after a series of try and fail I found the correct AJAX call:
$.ajax({
headers: {
"Accept": "application/json",
"Accept-Language": "en_US",
"Authorization": "Basic "+btoa("**<Client ID>:<Secret>**")
},
url: "https://api.sandbox.paypal.com/v1/oauth2/token",
type: "POST",
data: "grant_type=client_credentials",
complete: function(result) {
alert(JSON.stringify(result));
},
});
You need to replace Client ID:Secret with the one that you find on your Developer Dashboard, for example AxxhGDh:hudh-X-h8qi

Above example doesn't works, below works for me:
var parameter = {
"grant_type": "client_credentials",
"username": "<username>",
"password": "<password>"
}
$.ajax({
headers: {
"Accept": "application/json",
"Accept-Language": "en_US",
"Authorization": "Basic <your auth key>"
},
url: "https://api.sandbox.paypal.com/v1/oauth2/token",
type: "POST",
data: parameter,
complete: function (result) {
alert(JSON.stringify(result));
},
})

jQuery JSONP ajax, authentication header not being set

I'm trying to make an ajax request to the google contacts API with the following setup:
$.ajax({
url: "https://www-opensocial.googleusercontent.com/api/people/#me/#all",
dataType: 'jsonp',
data: {
alt: 'json-in-script'
},
headers: {
'Authorization': 'Bearer ' + token
},
success: function(data, status) {
return console.log("The returned data", data);
}
});
But the Authentication header doesn't seem to get set. Any ideas?

I had the same problem recently. Try this:
$.ajax({
url: "https://www-opensocial.googleusercontent.com/api/people/#me/#all",
dataType: 'jsonp',
data: {
alt: 'json-in-script'
},
success: function(data, status) {
return console.log("The returned data", data);
},
beforeSend: function(xhr, settings) { xhr.setRequestHeader('Authorization','Bearer ' + token); }
});
EDIT: Looks like it can't be done with JSONP. Modify HTTP Headers for a JSONP request

When authentication is needed in a cross domain request, you must use a proxy server of some sort.
Since using dataType: jsonp results in the HTTP request actually being made from the script that gets added to the DOM, the headers set in the $.ajax will not be used.

Is seems that most of the OAUTH2 REST resources accept the access_token parameter as part of the request url
http://self-issued.info/docs/draft-ietf-oauth-v2-bearer.html#query-param
please, try the following code instead:
$.ajax({
dataType: 'jsonp',
url: url,
data: {
'access_token':token.access_token
},
jsonpCallback: 'thecallback',
success: function(data){
_cb(data);
},
error: function(d){
_cb(d);
}
});

Just do this (jquery 2.0, but should work in previous versions)
$.ajax({
url: "/test",
headers: {"Authorization": "Bearer " + $('#myToken').val()}
})
.done(function (data) {
console.log(data);
})
.fail(function (jqXHR, textStatus) {
alert("error: " + textStatus);
});