Step by Step Guide to Building a Landingi API Integration in Java

Introduction

Hey there, fellow developer! Ready to supercharge your Java project with Landingi's powerful API? You're in the right place. We're going to walk through building a robust integration that'll have you creating, managing, and analyzing landing pages like a pro. Let's dive in!

Prerequisites

Before we get our hands dirty, make sure you've got:

• A Java development environment (I know you've got this covered!)
• Your Landingi API key (if you don't have one, hop over to your Landingi dashboard and grab it)
• An HTTP client library (we'll be using OkHttp, but feel free to use your favorite)

Setting up the project

First things first, let's set up our project:

mkdir landingi-integration
cd landingi-integration
# Initialize your project (use your preferred method)

Now, add the necessary dependencies to your pom.xml or build.gradle:

<dependency>
    <groupId>com.squareup.okhttp3</groupId>
    <artifactId>okhttp</artifactId>
    <version>4.10.0</version>
</dependency>

Authentication

Alright, let's get that authentication sorted:

public class LandingiClient {
    private static final String BASE_URL = "https://api.landingi.com/v1/";
    private final OkHttpClient client;
    private final String apiKey;

    public LandingiClient(String apiKey) {
        this.apiKey = apiKey;
        this.client = new OkHttpClient();
    }

    private Request.Builder createRequestBuilder(String endpoint) {
        return new Request.Builder()
            .url(BASE_URL + endpoint)
            .header("Authorization", "Bearer " + apiKey);
    }

    // We'll add more methods here soon!
}

Core API Interactions

Now for the fun part - let's interact with the API!

Fetching landing pages

public List<LandingPage> getLandingPages() throws IOException {
    Request request = createRequestBuilder("landing-pages").build();
    try (Response response = client.newCall(request).execute()) {
        // Parse the JSON response and return a list of LandingPage objects
        // You'll need to implement the JSON parsing logic
    }
}

Creating a new landing page

public LandingPage createLandingPage(String name, String template) throws IOException {
    RequestBody body = new FormBody.Builder()
        .add("name", name)
        .add("template", template)
        .build();
    Request request = createRequestBuilder("landing-pages")
        .post(body)
        .build();
    try (Response response = client.newCall(request).execute()) {
        // Parse the JSON response and return a new LandingPage object
    }
}

Updating landing page content

public void updateLandingPage(String pageId, String content) throws IOException {
    RequestBody body = new FormBody.Builder()
        .add("content", content)
        .build();
    Request request = createRequestBuilder("landing-pages/" + pageId)
        .put(body)
        .build();
    try (Response response = client.newCall(request).execute()) {
        // Handle the response as needed
    }
}

Deleting a landing page

public void deleteLandingPage(String pageId) throws IOException {
    Request request = createRequestBuilder("landing-pages/" + pageId)
        .delete()
        .build();
    try (Response response = client.newCall(request).execute()) {
        // Handle the response as needed
    }
}

Handling API Responses

Don't forget to handle those responses like a champ:

private <T> T handleResponse(Response response, Class<T> clazz) throws IOException {
    if (!response.isSuccessful()) {
        throw new IOException("Unexpected code " + response);
    }
    
    String responseBody = response.body().string();
    // Use your favorite JSON parsing library to convert responseBody to an object of type T
    // For example, using Gson:
    // return new Gson().fromJson(responseBody, clazz);
}

Implementing Webhook Support

If you're feeling adventurous, set up a webhook endpoint:

@PostMapping("/landingi-webhook")
public ResponseEntity<String> handleWebhook(@RequestBody String payload) {
    // Process the webhook payload
    // You might want to verify the webhook signature here
    return ResponseEntity.ok("Webhook received");
}

Best Practices

Remember to:

• Implement rate limiting to stay within API constraints
• Cache responses when appropriate to reduce API calls
• Use exponential backoff for retrying failed requests

Testing the Integration

Don't skip testing! Here's a quick example:

@Test
public void testGetLandingPages() throws IOException {
    LandingiClient client = new LandingiClient("your-api-key");
    List<LandingPage> pages = client.getLandingPages();
    assertNotNull(pages);
    assertFalse(pages.isEmpty());
}

Conclusion

And there you have it! You've just built a solid Landingi API integration in Java. With this foundation, you can expand and customize to your heart's content. Remember, the Landingi API documentation is your friend for more advanced features.

Now go forth and create some killer landing pages programmatically! Happy coding! 🚀