How to call Azure function from Kotlin - kotlin

Question

I currently have deployed an Azure function used to get an AD token.
Function:
https://getadtokennet.azurewebsites.net/api/getadtokennet
Request header:
x-functions-key = {key}
How can I call this function from my Kotlin app?
This is the way I call it from Javascript
function getTokenAzure(onsuccess, onerror) {
var tokenUrl = 'https://getadtokennet.azurewebsites.net/api/getadtokennet';
$.ajax(tokenUrl, {
method: 'GET',
beforeSend: function (request) {
request.setRequestHeader("x-functions-key", "function key");
},
success: function (data) {
onsuccess(data);
console.log('token: ' + data.token);
},
error: function (xhr, status, error) {
var failureMessage = "GetToken error: " + status + " - " + error;
onerror(failureMessage);
console.log(failureMessage);
}
});
}

Answer 1

In IntelliJ IDEA, select Create New Project.
In the New Project window, select Maven from the left pane.
Select the Create from archetype check box, and then select Add Archetype for the azure-functions-kotlin-archetype.
In the Add Archetype window, complete the fields as follows:
GroupId: com.microsoft.azure
ArtifactId: azure-functions-kotlin-archetype
Version: Use the latest version from the central repository
Select OK, and then select Next.
Enter your details for current project, and select Finish.
For complete information refer to the below links which has same information.
Kotlin Function and Running Kotlin in Azure Functions

Answer 2

I found the way, here it is.
fun getToken(): String {
val tokenUrl = URL("https://getadtokennet.azurewebsites.net/api/getadtokennet")
val connection = tokenUrl.openConnection() as HttpURLConnection
connection.requestMethod = "POST"
connection.setRequestProperty("x-functions-key", "function key")
connection.doOutput = true
val responseCode = connection.responseCode
if (responseCode == HTTP_OK) {
val readerIn = BufferedReader(InputStreamReader(connection.inputStream))
var inputLine = readerIn.readLine()
val response = StringBuffer()
do {
response.append(inputLine)
} while (inputLine.length < 0)
readerIn.close()
// Return token
return response.toString()
} else {
val responseError = Error(code = "BadRequest", message = "There was an error getting the token.")
throw IOException(responseError.toString())
}
}