Best practices and detailed code examples for calling DeepSeek API in Java

1. Get the API key

First, you need to get the API key from the DeepSeek platform. This key will be used to verify your request.

2. Add HTTP client dependencies

The commonly used HTTP client library in Java includesHttpURLConnection、Apache HttpClient、OkHttpwait. You can select one of them to send HTTP requests.

For example, useOkHttp, you canAdd the following dependencies to:

<dependency>
    <groupId>.okhttp3</groupId>
    <artifactId>okhttp</artifactId>
    <version>4.9.3</version>
</dependency>

3. Create HTTP Request

Create a request using the HTTP client library of your choice. The following is a useOkHttpExample:

import okhttp3.*;

import ;

public class DeepSeekClient {

    private static final String API_URL = "/v1/your-endpoint";
    private static final String API_KEY = "your-api-key";

    public static void main(String[] args) {
        OkHttpClient client = new OkHttpClient();

        // Create a request body        MediaType mediaType = ("application/json");
        String jsonBody = "{\"key\":\"value\"}"; // Construct the request body according to the API requirements        RequestBody body = (jsonBody, mediaType);

        // Create a request        Request request = new ()
                .url(API_URL)
                .post(body)
                .addHeader("Authorization", "Bearer " + API_KEY)
                .addHeader("Content-Type", "application/json")
                .build();

        // Send a request        try (Response response = (request).execute()) {
            if (()) {
                ("Response: " + ().string());
            } else {
                ("Request failed: " + () + " " + ());
            }
        } catch (IOException e) {
            ();
        }
    }
}

4. Process the response

Depending on the API's response format (usually JSON), you can useJackson、GsonWait for the library to parse the response.

For example, useJacksonParsing JSON response:

import ;

import ;

public class DeepSeekResponse {
    private String field1;
    private String field2;

    // Getters and Setters

    public static void main(String[] args) {
        String jsonResponse = "{\"field1\":\"value1\",\"field2\":\"value2\"}";

        ObjectMapper mapper = new ObjectMapper();
        try {
            DeepSeekResponse response = (jsonResponse, );
            ("Field1: " + response.getField1());
            ("Field2: " + response.getField2());
        } catch (IOException e) {
            ();
        }
    }
}

5. Error handling

Make sure to handle possible errors in the code, such as network problems, API current limit, authentication failure, etc.

6. Test

After the integration is completed, conduct sufficient testing to ensure that both API calls and response processing are working properly.

7. Deployment

Deploy the integrated code into your production environment.

Things to note

Security: Do not hardcode API keys in your code, consider using environment variables or configuration management tools to manage sensitive information.
performance: If API is called frequently, consider using cache or asynchronous requests to improve performance.
document: Refer to DeepSeek's official documentation to understand the specific usage methods and limitations of the API.

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