Create Client with Project ID

Create Client with Project ID

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For detailed documentation that includes this code sample, see the following:

Code sample

C#

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

FirestoreDb db = FirestoreDb.Create(project);
Console.WriteLine("Created Cloud Firestore client with project ID: {0}", project);

Java

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

FirestoreOptions firestoreOptions =
    FirestoreOptions.getDefaultInstance().toBuilder()
        .setProjectId(projectId)
        .setCredentials(GoogleCredentials.getApplicationDefault())
        .build();
Firestore db = firestoreOptions.getService();

PHP

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

use Google\Cloud\Firestore\FirestoreClient;

/**
 * Initialize Cloud Firestore with a provided project ID.
 *
 * @param string $projectId Your Google Cloud Project ID
 */
function setup_client_create_with_project_id(string $projectId): void
{
    // Create the Cloud Firestore client with a provided project ID.
    $db = new FirestoreClient([
        'projectId' => $projectId,
    ]);
    printf('Created Cloud Firestore client with project ID: %s' . PHP_EOL, $projectId);
}

Python

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

from google.cloud import firestore

# The `project` parameter is optional and represents which project the client
# will act on behalf of. If not supplied, the client falls back to the default
# project inferred from the environment.
db = firestore.Client(project="my-project-id")

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