The Best Java Library for VIN (Vehicle Identification Number) OCR

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package main

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Base64;
import com.google.gson.Gson;
import com.google.gson.JsonObject;

public class VinOcr {

    public static void main(String[] args) throws IOException, InterruptedException {
        String apiKey = "YOUR_API_KEY"; // Replace with your actual API key
        String imagePath = "path/to/your/vin_image.jpg"; // Replace with the path to your image

        // 1. Read the image file and encode it to Base64
        String base64Image = encodeFileToBase64(imagePath);

        // 2. Construct the JSON payload
        JsonObject payload = new JsonObject();
payload.addProperty("img", base64Image);
        String jsonPayload = payload.toString();

        // 3. Create the HTTP client
        HttpClient client = HttpClient.newHttpClient();

        // 4. Build the HTTP request
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://api.structocr.com/v1/vin"))
                .header("x-api-key", apiKey)
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(jsonPayload))
                .build();

        // 5. Send the request and receive the response
        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());

        // 6. Parse the JSON response
        Gson gson = new Gson();
        JsonObject jsonResponse = gson.fromJson(response.body(), JsonObject.class);

        // 7. Extract the VIN and manufacturer (if available)
        if (jsonResponse.get("success").getAsBoolean()) {
            JsonObject data = jsonResponse.getAsJsonObject("data");
            String vin = data.get("vin").getAsString();
            System.out.println("VIN: " + vin);

        } else {
            System.out.println("Error: " + jsonResponse.get("error").getAsString());
        }
    }

    private static String encodeFileToBase64(String filePath) throws IOException {
        Path path = Path.of(filePath);
        byte[] fileContent = Files.readAllBytes(path);
        return Base64.getEncoder().encodeToString(fileContent);
    }
}