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Connect to MongoDB

Stable API

On this page

  • Overview
  • Enable the Stable API
  • Configure the Stable API
  • API Documentation

Note

The Stable API feature requires MongoDB Server 5.0 or later.

Overview

In this guide, you can learn how to specify Stable API compatibility when connecting to a MongoDB deployment.

The Stable API feature forces the server to run operations with behaviors compatible with the API version you specify. When you update either your library or server version, the API version changes, which can change the way these operations behave. Using the Stable API ensures consistent responses from the server and provides long-term API stability for your application.

The following sections describe how you can enable and customize Stable API for your MongoDB client. For more information about the Stable API, including a list of the commands it supports, see Stable API in the MongoDB Server manual.

Enable the Stable API

To enable the Stable API, perform the following steps:

  1. Construct a MongoDB\Driver\ServerApi object and pass the Stable API version you want to use. Currently, the library supports only version 1.

  2. Construct a MongoDB\Client object. For the driverOptions parameter, pass an array that contains the serverApi option. Set this option to the MongoDB\Driver\ServerApi object you created in the previous step.

The following code example shows how to specify Stable API version 1:

$uri = "mongodb://<hostname>:<port>";
$driverOptions = ['serverApi' => new MongoDB\Driver\ServerApi('1')];
$client = new MongoDB\Client($uri, [], $driverOptions);

Note

After you create a MongoDB\Client instance with a specified API version, all commands you run with the client use the specified version. If you need to run commands using more than one version of the Stable API, create a new MongoDB\Client instance.

Configure the Stable API

The MongoDB\Driver\ServerApi constructor also accepts the following optional parameters. You can use these parameters to customize the behavior of the Stable API.

Parameter
Description
strict
Optional. When true, if you call a command that isn't part of the declared API version, the server raises an exception.

Default: null. If this parameter is null, the server applies its default value of false.
deprecationErrors
Optional. When true, if you call a command that is deprecated in the declared API version, the server raises an exception.

Default: null. If this parameter is null, the server applies its default value of false.

The following code example shows how you can use these parameters when constructing a MongoDB\Driver\ServerApi object:

$uri = "mongodb://<hostname>:<port>";
$serverApi = new MongoDB\Driver\ServerApi('1', strict: true, deprecationErrors: true);
$driverOptions = ['serverApi' => $serverApi];
$client = new MongoDB\Client($uri, [], $driverOptions);

API Documentation

For more information about the MongoDB\Client class, see the following PHP library API documentation:

  • MongoDB\Client

For more information about the MongoDB\Driver\ServerApi class, see the following PHP extension API documentation:

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