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Add an example of how to change the oauth endpoint #1972

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Add an example of how to change the oauth endpoint #1972

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27 changes: 25 additions & 2 deletions samples/snippets/src/main/java/com/example/storage/bucket/SetClientEndpoint.java
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Expand Up @@ -17,21 +17,44 @@
package com.example.storage.bucket;

// [START storage_set_client_endpoint]

import com.google.auth.oauth2.ServiceAccountCredentials;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;

public class SetClientEndpoint {

public static ServiceAccountCredentials setOAuthEndpoint(
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Generally we would make a seperate sample (including a seperate class, test etc) if we were going to add a sample like this and not add it into the existing sample for another use case.

String oauthEndpoint, String serviceAccountPath) throws IOException, URISyntaxException {
// The oauth endpoint you wish to target
// String oauthEndpoint = "https://oauth2.googleapis.com/token";

ServiceAccountCredentials credentials =
ServiceAccountCredentials.fromStream(new FileInputStream(serviceAccountPath));
credentials = credentials.toBuilder().setTokenServerUri(new URL(oauthEndpoint).toURI()).build();
return credentials;
}

public static void setClientEndpoint(String projectId, String endpoint) {
// The ID of your GCP project
// String projectId = "your-project-id";

// The endpoint you wish to target
// String endpoint = "https://storage.googleapis.com"

// You might want to change the oauth2 endpoint as well
// ServiceAccountCredentials credentials = setOAuthEndpoint(oauthEndpoint, serviceAccountPath);

Storage storage =
StorageOptions.newBuilder().setProjectId(projectId).setHost(endpoint).build().getService();
StorageOptions.newBuilder()
.setProjectId(projectId)
.setHost(endpoint)
// .setCredentials(credentials)
.build()
.getService();

System.out.println(
"Storage Client initialized with endpoint " + storage.getOptions().getHost());
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