Cloud API - Barcode Generator API - JavaScript - Generate Barcode - Async API - ByteScout

Cloud API – Barcode Generator API – JavaScript – Generate Barcode – Async API

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Cloud API – Barcode Generator API – JavaScript – Generate Barcode – Async API

generate_barcode.js

[javascript]
function generateBarcode() {
// Hide result blocks
document.getElementById(“errorBlock”).style.display = “none”;
document.getElementById(“resultBlock”).style.display = “none”;

// Get API Key
var apiKey = document.getElementById(“apiKey”).value.trim();
if (apiKey == “”) {
alert(“API Key should not be empty.”);
return false;
}
// Get barcode type
var barcodeType = document.getElementById(“barcodeType”).value;
// Get barcode value
var inputValue = document.getElementById(“inputValue”).value.trim();
if (inputValue == null || inputValue == “”) {
alert(“Barcode Value should not be empty.”);
return false;
}

//show loader
showLoader(true);

// Prepare URL
var url = “https://api.pdf.co/v1/barcode/generate?name=barcode.png”;
url += “&type=” + barcodeType; // Set barcode type (symbology)
url += “&value=” + inputValue; // Set barcode value
url += “&async=True”; // Set async api

// Prepare request
var httpRequest = new XMLHttpRequest();
httpRequest.open(“GET”, url, true);
httpRequest.setRequestHeader(“x-api-key”, apiKey); // set API Key
// Asynchronous response handler
httpRequest.onreadystatechange = function () {
if (httpRequest.readyState == 4) {
// If OK
if (httpRequest.status == 200) {
var result = JSON.parse(httpRequest.responseText);
checkIfJobIsCompleted(result.jobId, result.url);
}
// Else display error
else {
document.getElementById(“errorBlock”).style.display = “block”; // show hidden errorBlock
document.getElementById(“error”).innerHTML = “Request failed. Please check you use the correct API key.”;

// Hide loader
showLoader(false);
}
}
}
// Send request
httpRequest.send();

return true;
}

function checkIfJobIsCompleted(jobId, resultFileUrl) {

var url = ‘https://api.pdf.co/v1/job/check?jobid=’ + jobId;

// Prepare request
var httpRequest = new XMLHttpRequest();
httpRequest.open(“GET”, url, true);
httpRequest.setRequestHeader(“x-api-key”, apiKey); // set API Key
// Asynchronous response handler
httpRequest.onreadystatechange = function () {
if (httpRequest.readyState == 4) {
// If OK
if (httpRequest.status == 200) {
var jobResult = JSON.parse(httpRequest.responseText);

if (jobResult.Status == “InProgress”) {
// Check again after 2 seconds
setTimeout(checkIfJobIsCompleted(jobId, resultFileUrl), 2000)
}
else if (jobResult.Status == “Finished”) {
document.getElementById(“resultBlock”).style.display = “block”; // show hidden resultBlock
document.getElementById(“image”).setAttribute(“src”, resultFileUrl); // Set image link to display

// Hide loader
showLoader(false);
}
}
// Else display error
else {
document.getElementById(“errorBlock”).style.display = “block”; // show hidden errorBlock
document.getElementById(“error”).innerHTML = “Request failed. Please check you use the correct API key.”;

// Hide loader
showLoader(false);
}
}
}

// Send request
httpRequest.send();
}

function showLoader(isDisplay) {
var loader = document.getElementById(“loader”);

if (isDisplay) {
loader.style.display = “”;
}
else {
loader.style.display = “none”;
}
}
[/javascript]


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