Develop Reference

how to pass data to ajax for an express api call

I'm developing a website with express and ejs. I got into a trouble where i need to call an api via ajax. The problem is on a button onclick i'm passing two values to ajax data. but it gives error ,i tried a lot of ways and i'm messed up. i'm a newbie , find my code below.
const parsedData = JSON.parse(localStorage.getItem('myData'));
const container = document.getElementById('s1');
parsedData.data.rows.forEach((result, idx) => {
var a = result.master_id;
var b = result.session_name;
console.log(a,b,"a","b")
var userData = {"pid":a,"session" :b};
console.log(userData,"userData");
sessionStorage.setItem("user", JSON.stringify(userData));
console.log(userData,"data for api");
const card = document.createElement('div');
card.classList = 'card';
const content = `
<div class="row">
<div class="card-body" onclick="graphApi()">
</div>
</div>
`;
container.innerHTML += content;
});
function graphApi(){
var apiValue =JSON.parse( sessionStorage.getItem("user"));
console.log(apiValue, "value from card");
$.ajax({
type: "POST",
data: apiValue,
dataType:"json",
url: "http://localhost:5000/graphFromcsv",
success: function(data) {
console.log(data,"graph api");
}
error: function(err){
alert("graph api failed to load");
console.log(err);
},
});
i'm always getting this pid in api value undefined and 400 badrequest . but if i use raw data like,
{
"pid":"WE6",
"session":"W.csv"
}
instead of apiValue my ajax is success and i'm gettig the data. i'm using this data to plot a multiple line graph. Any help is appreciated.

You need to correct data key and their value(value must be string in case of json data) and also add contentType key like
$.ajax({
type: "POST",
data: sessionStorage.getItem("user") || '{}',
dataType: "json",
contentType: "application/json",
url: "http://localhost:5000/graphFromcsv",
success: function (data) {
console.log(data, "graph api");
},
error: function (err) {
alert("graph api failed to load");
console.log(err);
},
});
Note: In backend(ExpressJS), make sure you are using correct body-parser middleware like app.use(express.json());

Let assume your apiValue contain {"pid":"WE6", "session":"W.csv" } then body: { apiValue } will be equal to:
body: {
apiValue: {
"pid":"WE6",
"session":"W.csv"
}
}
But if you use the link to the object like body: apiValue (without brackets) js will build it like:
body: {
"pid":"WE6",
"session":"W.csv"
}

CORS error when trying to post message

I have an AngularJS Application I am trying to post a message through. I am successfully able to log the user in, get the access token, and I have ensured I have my domain in the JavaScript Origins within Yammer.
Whenever I try to post a message, however, I get the following error:
The strange thing is when it does the preflight it seems OK but as the error states I can't figure out why it isn't coming back in the CORS header as I have it registered within the Yammer Client area.
Here is the code for posting:
$scope.YammerPost = function (Yammer) {
var _token = Yammer.access_token.token;
var config = {
headers: {
'Authorization': 'Bearer ' + _token
}
};
$http.post('https://api.yammer.com/api/v1/messages.json', { body: 'blah blah', group_id: XXXXXXX }, config);
}
I call that scope variable in the view via a button click.
Here is the logic I use to sign the user in:
function checkYammerLogin() {
$scope.Yammer = {};
yam.getLoginStatus(
function (response) {
if (response.authResponse) {
$scope.Yammer = response;
console.dir(response); //print user information to the console
}
else {
yam.platform.login(function (response) {
if (response.authResponse) {
$scope.Yammer = response;
console.dir(response);
}
});
}
}
);
}

I ended up finding the issue.
For some odd reason, every time I would try to use an $http post it would include an Auth token from AD (app using Azure AD for authentication).
I ended up using jQuery inside of my Angular scope function on the button click and it works as I can control the headers for the request.
$.ajax({
url: 'https://api.yammer.com/api/v1/messages.json',
type: 'post',
data: {
body: 'this is a test from jQuery using AngularJS',
group_id: <group_id>
},
headers: {
'Authorization': _token
},
dataType: 'json',
success: function (data) {
console.info(data);
}
});
Fixed the issue and I can now post.
If anyone sees any issues with this practice please let me know, still a little new to angular

How to add text to the body of a CasperJS thenOpen() POST request

I need to write a script inside of datorama.com to access pardot.com. Pardot does have an API that requires a request that has a request inside the body as
POST: https://pi.pardot.com/api/login/version/3
message body: email=&password=&user_key=
Right now here is my code:
phantom.casperPath = casperPath;
phantom.injectJs(casperPath + "/bin/bootstrap.js");
var casper = require('casper').create({
verbose: true,
logLevel: 'debug'
});
casper.start().thenOpen('https://pi.pardot.com/api/login/version/3',{
method: 'post',
content: {
'text' : 'email=<myemail>&password=<password>&user_key=<userKey>'
}
}, function(response) {
this.echo(this.getHTML());
});
casper.run();
I can tell that it is getting through to the server because it is responding this.echo(this.getHTML()); "Login Failed" . I am using the right email/password/user_Key because i am pulling that from the API Console for pardot and it is working there.... So I believe the issue is I am not setting the body of the request correctly.
So does anyone know a way to set the body on the request?

casper.open() or casper.thenOpen() don't understand the content setting. You probably wanted to use data:
casper.start()
.thenOpen('https://pi.pardot.com/api/login/version/3', {
method: 'post',
data: 'email=<myemail>&password=<password>&user_key=<userKey>'
}, function() { ... });
Don't forget to use encodeURIComponent() on the email, password and user key parameters if you build the string yourself.
You can also pass an object:
casper.start()
.thenOpen('https://pi.pardot.com/api/login/version/3', {
method: 'post',
data: {
email: '<myemail>',
password: '<password>',
user_key: '<userKey>'
}
}, function() { ... });
If you expect something else than HTML from the API, then you should use casper.getPageContent() instead of casper.getHTML().

SyntaxError: missing } after property list on Facebook generated code

I'm trying to run this generated by facebook code on my site, but it is not working. I'm getting error "SyntaxError: missing } after property list".
Code:
FB.api(
'me/objects/my-app-name-was-here:photo',
'post',
{
og:url: http://samples.ogp.me/MYAPPIDWASHERE,
og:title: Sample Photo,
og:type: my-app-name-was-here:photo,
og:image: https://fbstatic-a.akamaihd.net/images/devsite/attachment_blank.png,
og:description: ,
fb:app_id: MYAPPIDWASHERE
},
function(response) {
// handle the response
}
);
What is wrong with this code? I got it from here:
https://developers.facebook.com/apps/MY_APP_ID_WAS_HERE/open-graph/object-types/

the API you are trying to use here is
FB.api('/me/feed', 'post', { message: body }, function(response) {})
In your code, the object part(the third argument), is not a valid object, and that's why the error. please provide a valid object here.
And by the way, the link you provided is broken
Thanks

FB.api(
'me/objects/my-app-name-was-here:photo',
'post',
{
url: 'http://samples.ogp.me/MYAPPIDWASHERE',
title: 'Sample Photo',
type: 'my-app-name-was-here:photo',
image: 'https://fbstatic-a.akamaihd.net/images/devsite/attachment_blank.png',
description:'' ,
app_id: 'MYAPPIDWASHERE'
},
function(response) {
// handle the response
}
);
Facebook api third param should be an object. like {fields: 'value'}

how to post object to facebook user wall?

I am using Facebook JavaScript SDK, this code is for log in and post an object to user's wall, which returns an error,
{"error":{"message":"(#200) You do not have sufficient to permissions to perform this action","type":"OAuthException","code":200}}
FB.login(function(data){
if(data.authResponse){
facebookGetDetails();
}else{
console.log("Login operation aborted");
}
},{scope: 'email,publish_actions,read_stream'});
FB.api(
'/me',
'post',
{
app_id: xxxxxxxxxxxx,
type: "business.business",
url: url,
title: title,
image: picUrl,
contact_data: "Bangalore, India",
location: "17.024522",
description: desc
},
function(response) {
console.log(JSON.stringify(response));
// handle the response
});
the following code works, but it only posts to activity stream, not to wall.
FB.api(
'me/namespace:review',
'post',
{
business: "http://samples.ogp.me/616004095080596"
},
function(response) {
// handle the response
}
);

I guess you're using a incomplete endpoint URL here
FB.api(
'/me',
...
);
You should call /me/feed with a post request as described here: https://developers.facebook.com/docs/graph-api/reference/user/feed/#publish