I have trying to call ServiceNow API from a SharePoint hosted adding i'm working on using JavaScript with credential for the header. But when i try to run it during the run time the request gets an error. Any help regarding this would be highly appreciated.
var req = new XMLHttpRequest();
req.open('GET',Servicenow_URL, true);
req.setRequestHeader('Content-Type', 'application/json');
req.open("Authorization", "Basic " + btoa(Username + ":" + password));
req.withCredentials = true;
req.send();
alert("here1");
if (req.readyState === 4) {
if (req.status === 200) {
console.log(xhr.responseText);
var response = JSON.parse(req.responseText);
alert("here2");
} else {
console.error(req.statusText);
alert("error");
}
}
the developer tool from browser shows the error as "the server responded with a status of 501"
Related
i am using phonegap and trying to invoke a xhr POST on click of a button.
my flow goes to the method call but doesn't invoke the xhr code and i am failing to understand why.
The call looks like:
function fetchTags(){
console.log("Fetched url is:" + IMAGE_URL);
//var url = "http://localhost:8080/echo";
var url ="http://localhost:8080/echo";
console.log("#1");
var xhr = new XMLHttpRequest();
console.log("#2");
xhr.addEventListener("error", onError);function onError(evt) { console.log("An error occurred while transferring the file."); }
console.log("#3");
xhr.setRequestHeader("Content-type", "application/json");
console.log("#4");
xhr.open('POST', url, true);
console.log("#5");
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
var response = JSON.parse(xhr.responseText);
window.alert(response);
}else{
window.alert(xhr.status);
}
};
console.log("#5");
//var msg = "{'message' : '" + IMAGE_URL + "'}";
console.log("sending request");
xhr.send(JSON.stringify({"message" : "my msg"}));
}
Button code:
<button class="button button-raised larger" type="button" onclick="fetchTags()">Vision</button>
The console prints:
Fetched url is:undefined
#1
#2
#3
To clarify i can see first console.log getting printed. but that's it. nothing happens after that.
just for everyone's benefit the issue was not the javascript but invoking from the phonegap using the localhost.
I was unders the assumption that phonegap will be able to access my api at localhost (not sure why had this stupid idea) but yes using the actual ip of the host machine made it work right away.
My first post here.
I'm using droidscript and I have to include an header that contains a specific user and a password in order to retrieve a token. I'm having trouble because I don't know where to include those headers.
That's the code I'm using:
function btn_OnTouch(){
var url = "myurl";
SendRequest(url);
}
//Send an http get request.
function SendRequest(url){
var httpRequest = new XMLHttpRequest();
httpRequest.onreadystatechange = function() {
HandleReply(httpRequest);
};
httpRequest.open("GET", url, true);
httpRequest.send(null);
app.ShowProgress("Loading...");
}
//Handle the servers reply (a json object).
function HandleReply(httpRequest){
if (httpRequest.readyState == 4){
//If we got a valid response.
if (httpRequest.status == 200){
txt.SetText("Response: " + httpRequest.status + httpRequest.responseText);
}
//An error occurred
else
txt.SetText("Error: " + httpRequest.status + httpRequest.responseText);
}
app.HideProgress();
}
The told me I should probably include the headers like this, but I don't know where to put them in my code.
httpRequest.setRequestHeader(“username”, “myuser”);
httpRequest.setRequestHeader(“password”, “mypass”);
You need to do it just after calling the open method like this:-
httpRequest.open("GET", url, true);
httpRequest.setRequestHeader("username", "myuser");
httpRequest.setRequestHeader("password", "mypass");
httpRequest.send(null);
I can't seem to receive Javascript's HTTPRequest. I get this HTTP/1.1 200 OK
but I cannot seem to get the URL that I sent over. I just want the link that I am sending over on my webpage.
Here is my javascript:
jQuery(function($) {$("button").click(function(){
console.log(this.id);
document.getElementById("direction").innerHTML = this.id + " is pressed.";
newurl = 'index.php?btn='+ this.id+"?key="+user.key;
sendHttpRequest(newurl);
});
});
function sendHttpRequest(update){
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
console.log(xhttp.responseText);
}
}
xhttp.open("GET",update,true);
xhttp.send(null);
console.log(update);
}
ESP8266 in void loop:
WiFiClient client;
String url = "/index.php?";
client.print(String("GET ") + url + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Connection: close\r\n\r\n");
Serial.println("Request Sent");
String request = client.readStringUntil('\r');
Serial.println("headers received");
Serial.println(request);
You're only reading the first line of the response from the index.php script on the ESP, which will generally be the HTTP status code you are seeing, and nothing else (Unless there's some other code you haven't posted). You need to read the entire HTTP message to get the response, specifically the body - Assuming index.php uses the body to return the data you need. You can find a description of the HTTP message structure here: https://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html
I have a js file, containing a folder myFunc(phone_number)
Now when this js function is called, I want to make a POST request to the URI https://pay.something.in:443/FetchPhone/ passing the json {'phone_number' : 10 digit phone no. } as input to the request
and show its output in a new window.
Can somebody tell me how do I do that?
Seems to me like you want to make a POST request with xhr.
var xhr = new XMLHttpRequest();
xhr.open('POST', "https://pay.something.in:443")
xhr.setRequestHeader("Content-type", "application/json");
xhr.send( '{"phone_number" : 4455566677 }' );
xhr.onreadystatechange = function(){
if (xhr.readyState != 4) return;
if (xhr.status != 200 && xhr.status != 304) {
alert('HTTP error ' + req.status);
return;
}
console.log(xhr.responseText);//this is your response
window.sessionStorage['response'] = xhr.responseText;
window.open('Your window');//The data is accessible through sessionStorage.
}
I use an XMLHttpRequest to post data to a server. It looks like this:
var xhr = new XMLHttpRequest();
var url = 'http://myurl/post';
xhr.open("POST", url, true);
xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
if (xhr.status == 200) {
leaveEditMode();
} else {
initOverlay('Error: ' + xhr.statusText);
}
}
};
xhr.send(
'StringName=' + $activeElement.dataset.name + '&' +
'Text=' + encodeURIComponent($activeElement.innerHTML) + '&' +
'Language=' + userLanguage
);
This code works perfectly fine in Chrome, FireFox and Opera. But in IE11 it does not. There are no errors and I get status code 200 back from the request. But the data is not being posted. Seems like the request is ignored.
Any ideas? I tried an anti-cache-header - nothing.
Thanks for your help! :-)
The problem was, simple enough, the parameter userLanguage was not set right and the server didn't send an appropriate response.