Quickstart: Search for news with the Bing News Search SDK for Java

Use this quickstart to begin searching for news with the Bing News Search SDK for Java. While Bing News Search has a REST API compatible with most programming languages, the SDK provides an easy way to integrate the service into your applications. The source code for this sample can be found on GitHub.

Prerequisites

Install the Bing News Search SDK dependencies using Maven, Gradle, or another dependency management system. The Maven POM file requires the following declaration:

    <dependencies>
    <dependency>
        <groupId>com.microsoft.azure.cognitiveservices</groupId>
        <artifactId>azure-cognitiveservices-newssearch</artifactId>
        <version>0.0.1-beta-SNAPSHOT</version>
    </dependency>
    </dependencies>

You must have a Cognitive Services API account with access to the Bing Search APIs. If you don't have an Azure subscription, you can create an account for free. Before continuing, You will need the access key provided after activating your free trial, or a paid subscription key from your Azure dashboard.

Create and initialize a project

Create a new Java project in your favorite IDE or editor, and import the following libraries.

import com.microsoft.azure.cognitiveservices.newssearch.*;
import com.microsoft.azure.cognitiveservices.newssearch.implementation.NewsInner;
import com.microsoft.azure.cognitiveservices.newssearch.implementation.NewsSearchAPIImpl;
import com.microsoft.azure.cognitiveservices.newssearch.implementation.TrendingTopicsInner;
import com.microsoft.rest.credentials.ServiceClientCredentials;
import okhttp3.Interceptor;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import java.io.IOException;

Create a search client and store credentials

  1. Create a method called getClient() that returns a new NewsSearchAPIImpl search client. Add your endpoint as the first parameter for the newNewsSearchAPIImpl object, and a new ServiceClientCredentials object to store your credentials.

    public static NewsSearchAPIImpl getClient(final String subscriptionKey) {
        return new NewsSearchAPIImpl("https://api.cognitive.microsoft.com/bing/v7.0/",
                new ServiceClientCredentials() {
                });
    }
    
  2. To create the ServiceClientCredentials object, override the applyCredentialsFilter() function. Pass a OkHttpClient.Builder to the method, and use the builder's addNetworkInterceptor() method to create your credentials for the SDK call.

    new ServiceClientCredentials() {
        @Override
        public void applyCredentialsFilter(OkHttpClient.Builder builder) {
            builder.addNetworkInterceptor(
                    new Interceptor() {
                        @Override
                        public Response intercept(Chain chain) throws IOException {
                            Request request = null;
                            Request original = chain.request();
                            // Request customization: add request headers.
                            Request.Builder requestBuilder = original.newBuilder()
                                    .addHeader("Ocp-Apim-Subscription-Key", subscriptionKey);
                            request = requestBuilder.build();
                            return chain.proceed(request);
                        }
                    });
        }
    });
    

Send and receive a search request

  1. Create a method that calls getClient() and sends a search request to the Bing News Search service. Filter the search with the market and count parameters, then print information about the first news result: name, URL, publication date, description, provider name, and total number of estimated matches for your search.

    public static void newsSearch(String subscriptionKey)
    {
        NewsSearchAPIImpl client = getClient(subscriptionKey);
        String searchTerm = "Quantum Computing";
    
        NewsInner newsResults = client.searchs().list(searchTerm, null, null, null,
                null, null, 100, null, "en-us",
                null, null, null, null, null,
                null, null);
    
        if (newsResults.value().size() > 0)
        {
            NewsArticle firstNewsResult = newsResults.value().get(0);
    
            System.out.println(String.format("TotalEstimatedMatches value: %d", newsResults.totalEstimatedMatches()));
            System.out.println(String.format("News result count: %d", newsResults.value().size()));
            System.out.println(String.format("First news name: %s", firstNewsResult.name()));
            System.out.println(String.format("First news url: %s", firstNewsResult.url()));
            System.out.println(String.format("First news description: %s", firstNewsResult.description()));
            System.out.println(String.format("First news published time: %s", firstNewsResult.datePublished()));
            System.out.println(String.format("First news provider: %s", firstNewsResult.provider().get(0).name()));
        }
        else
        {
            System.out.println("Couldn't find news results!");
        }
    
    }
    
    
  2. Add your search method to a main() method to execute the code.

    public static void main(String[] args) {
        String subscriptionKey = "YOUR-SUBSCRIPTION-KEY";
        NewsSearchSDK.newsSearch(subscriptionKey);
    }
    

Next steps