Merchant API code sample to list account limits.

### Java

    // Copyright 2025 Google LLC
    //
    // Licensed under the Apache License, Version 2.0 (the "License");
    // you may not use this file except in compliance with the License.
    // You may obtain a copy of the License at
    //
    //     https://www.apache.org/licenses/LICENSE-2.0
    //
    // Unless required by applicable law or agreed to in writing, software
    // distributed under the License is distributed on an "AS IS" BASIS,
    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    // See the License for the specific language governing permissions and
    // limitations under the License.

    package shopping.merchant.samples.quota.v1;

    import com.google.api.gax.core.FixedCredentialsProvider;
    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.shopping.merchant.quota.v1.AccountLimit;
    import com.google.shopping.merchant.quota.v1.AccountLimitsServiceClient;
    import com.google.shopping.merchant.quota.v1.AccountLimitsServiceClient.ListAccountLimitsPagedResponse;
    import com.google.shopping.merchant.quota.v1.AccountLimitsServiceSettings;
    import com.google.shopping.merchant.quota.v1.ListAccountLimitsRequest;
    import shopping.merchant.samples.utils.Authenticator;
    import shopping.merchant.samples.utils.Config;

    /** This class demonstrates how to list account limits for a given Merchant Center account. */
    public class ListAccountLimitsSample {

      public static void listAccountLimits(String accountId) throws Exception {
        GoogleCredentials credential = new Authenticator().authenticate();

        AccountLimitsServiceSettings accountLimitsServiceSettings =
            AccountLimitsServiceSettings.newBuilder()
                .setCredentialsProvider(FixedCredentialsProvider.create(credential))
                .build();

        try (AccountLimitsServiceClient accountLimitsServiceClient =
            AccountLimitsServiceClient.create(accountLimitsServiceSettings)) {

          ListAccountLimitsRequest request =
              ListAccountLimitsRequest.newBuilder()
                  .setParent(String.format("accounts/%s", accountId))
                  .setFilter("type = \"products\"")
                  .build();

          System.out.println("Sending list account limits request:");
          ListAccountLimitsPagedResponse response =
              accountLimitsServiceClient.listAccountLimits(request);

          int count = 0;

          // Iterates over all rows in all pages and prints the account limit in each row.
          // Automatically uses the `nextPageToken` if returned to fetch all pages of data.
          for (AccountLimit accountLimit : response.iterateAll()) {
            System.out.println(accountLimit);
            count++;
          }
          System.out.print("The following count of account limits were returned: ");
          System.out.println(count);

        } catch (Exception e) {
          System.out.println("Failed to list account limits.");
          System.out.println(e);
        }
      }

      public static void main(String[] args) throws Exception {
        Config config = Config.load();
        listAccountLimits(config.getAccountId().toString());
      }
    }