Atar Custom API Integration

The guide below will walk you through the steps to integrate Atar into your app via a custom integration

Step 1: Create an account and get your App Key

If you haven't already, create an account on the Atar Dashboard. Once you've created an account, you'll be able to create an app and get your App Key from the settings page.

Step 2: Retrieve an offer via API

The process to retrieve an offer via the API is relatively simple.

2.1 First build the request object

In order to retrieve an offer, you need to build a request object. The request object is a JSON object that contains the following fields:

Req.	Field name	Description	Data type
Req	event	User event that preceded the offers	string
Req	referenceId	Some ID for reference for deduplication.	string
Req	userId	Some ID for the user.	string
Req	email	User email.	string
Req	phone	User phone number.	string
Rec	gender	User gender: M/F	string
Rec	dob	Date of birth, YYYYMMDD	string
Rec	firstName	User first name	string
Rec	lastName	User last name	string
Opt	amount	Transaction amount	string
Opt	quantity	Quantity of items purchased	int
Opt	paymentType	credit, PayPal, or other	string
Opt	address1	Street address line 1	string
Opt	address2	Street address line 2	string
Opt	city	City	string
Opt	state	State	string
Opt	country	Country	string

Here are some examples of building the minimum request object in different languages:

SwiftObjective CKotlinJava

var dict = [String: Any]()
dict["event"] = "purchase"
dict["referenceId"] = "12345"
dict["userId"] = "userId1234"

NSMutableDictionary *dict = [NSMutableDictionary new];
dict[@"event"] = @"purchase";
dict[@"referenceId"] = @"12345";
dict[@"userId"] = @"userId1234";

val dict = mutableMapOf<String, Any>()
dict["event"] = "purchase"
dict["referenceId"] = "12345"
dict["userId"] = "userId1234"

Map<String, Object> dict = new HashMap<>();
dict.put("event", "purchase");
dict.put("referenceId", "12345");
dict.put("userId", "userId1234");

2.2 Prepare the API body to POST

The post body includes important information for reporting segmentation and targeting. The body is a JSON object that contains the following fields:

Field name	Description	Data type
bId	Bundle or package name	string
aV	App version	string
aId	Some user ID for the app	string
os	Operating system (ios or android)	string
type	Some string tag for your ad layout	string
platform	Platform (phone, tablet, web, etc.)	string
ip	The user IP, optional for client side calls	string
count	The number of offers you want to display	string
request	The request object built above in JSON	object

Here are some examples of building the minimum request object in different languages:

SwiftObjective CKotlinJava

var body = [String: Any]()
body["bId"] =  Bundle.main.bundleIdentifier ?? "default"
body["aV"] = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "unknown"
body["aId"] = "userId1234"
body["os"] = "ios"
body["type"] = "interstitial"
body["platform"] = "phone"
body["request"] = dict

NSMutableDictionary *body = [NSMutableDictionary new];
body[@"bId"] = [[NSBundle mainBundle] bundleIdentifier] ?: @"default";
body[@"aV"] = [[NSBundle mainBundle] infoDictionary][@"CFBundleShortVersionString"] ?: @"unknown";
body[@"aId"] = @"userId1234";
body[@"os"] = @"ios";
body[@"type"] = @"interstitial";
body[@"platform"] = @"phone";
body[@"request"] = dict;

val body = mutableMapOf<String, Any>()
body["bId"] = context.packageName
body["aV"] = context.packageManager.getPackageInfo(context.packageName, 0).versionName
body["aId"] = "userId1234"
body["os"] = "android"
body["platform"] = "phone"
body["type"] = "interstitial"
body["request"] = dict

JSONObject body = new JSONObject();
body.put("bId", context.getPackageName());
body.put("aV", context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionName);
body.put("aId", "userId1234");
body.put("os", "android");
body.put("platform", "phone");
body.put("type", "interstitial");
body.put("request", dict);

2.3 Make the API call and handle response

Once you have built the request object, you can make the API call to retrieve an offer. The API endpoint is https://api.atargrowth.com/offers. You need to pass the request object as the body of the request and the App Key as a header.

Here are some examples of making the API call in different languages:

SwiftObjective CKotlinJava

let url = URL(string: "https://api.atargrowth.com/offers")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("Bearer YOUR_APP_KEY", forHTTPHeaderField: "Authorization")
request.httpBody = try? JSONSerialization.data(withJSONObject: body)

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    guard let dict = data as? [String: Any] else {
        print("Invalid response format")
        return
    }
    print("Offer dict: \(dict)")

    if let successString = dict["success"] as? String, successString == "false" {
        let errorMessage = dict["message"] as? String ?? "Unknown error"
        print("Error fetching offer: \(errorMessage)")
        return
    } else {
        if dict["offer"] != nil {
            let offer = dict["offer"] as? [String: Any] ?? [:]
        } else {
            return
        }
    }
}
task.resume()

NSURL *url = [NSURL URLWithString:@"https://api.atargrowth.com/offers"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
request.HTTPMethod = @"POST";
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"Bearer YOUR_APP_KEY"];
NSData *postData = [NSJSONSerialization dataWithJSONObject:body options:0 error:nil];
[request setHTTPBody:postData];

NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
    NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
    NSLog(@"Offer dict: %@", dict);

    if ([dict[@"success"] isEqualToString:@"false"]) {
        NSString *errorMessage = dict[@"message"] ?: @"Unknown error";
        NSLog(@"Error fetching offer: %@", errorMessage);
        return;
    } else {
        NSDictionary *offer = dict[@"offer"] ?: @{};
    }
}];
[task resume];

val url = URL("https://api.atargrowth.com/offers")
val connection = url.openConnection() as HttpURLConnection
connection.requestMethod = "POST"
connection.setRequestProperty("Content-Type", "application/json")
connection.setRequestProperty("Authorization", "Bearer YOUR_APP_KEY")
connection.doOutput = true
val output = DataOutputStream(connection.outputStream)
output.writeBytes(body.toString())
output.flush()
output.close()
val responseCode = connection.responseCode
val response = connection.inputStream.bufferedReader().use { it.readText() }

val dict = JSONObject(response)
println("Offer dict: $dict")

if (dict.getString("success") == "false") {
    val errorMessage = dict.getString("message") ?: "Unknown error"
    println("Error fetching offer: $errorMessage")
} else {
    val offer = dict.getJSONObject("offer")
}

URL url = new URL("https://api.atargrowth.com/offers");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
connection.setRequestProperty("Authorization", "Bearer YOUR_APP_KEY");
connection.setDoOutput(true);
DataOutputStream output = new DataOutputStream(connection.getOutputStream());
output.writeBytes(body.toString());
output.flush();
output.close();
int responseCode = connection.getResponseCode();
BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String line;
StringBuffer response = new StringBuffer();
while ((line = reader.readLine()) != null) {
    response.append(line);
}
reader.close();

JSONObject dict = new JSONObject(response.toString());
System.out.println("Offer dict: " + dict);

if (dict.getString("success").equals("false")) {
    String errorMessage = dict.getString("message") != null ? dict.getString("message") : "Unknown error";
    System.out.println("Error fetching offer: " + errorMessage);
} else {
    JSONObject offer = dict.getJSONObject("offer");
}

Step 3: Show the offer to the user

The contents of the Offer object returned from the API call can be used to show the offer to the user. The offer object contains the following fields:

Field	Type	Description
id	String	Unique identifier for the offer
title	String	Title of the offer
description	String	Description of the offer
cta	String	Call to action button text
iconUrl	String	URL to the offer's icon image
bannerUrl	String	URL to the offer's banner image
clickUrl	String	URL to handle click actions
destinationUrl	String	URL where the user is redirected

You can now construct the offer in the appropriate native format that makes sense for your app. For example, you can show a notification, a message, or a dialog with the offer details. Make sure to route the user to the clickUrl when the user interacts with the offer.

Need help?

If you have any questions or need help, please contact us at support@atargrowth.com.