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Stable API
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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 driver or server, 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:
Construct a
ServerApi
object and specify a Stable API version. You must use a Stable API version defined in theServerApiVersion
enum.Construct a
MongoClient
object, passing in yourServerApi
object for theserver_api
argument.
The following code example shows how to specify Stable API version 1:
from pymongo import MongoClient from pymongo.server_api import ServerApi client = MongoClient("mongodb://<username>:<password>@<hostname:<port>", server_api=ServerApi("1"))
Once you create a MongoClient
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 MongoClient
.
Configure the Stable API
The following table describes the parameters of the ServerApi
class. You can use these
parameters to customize the behavior of the Stable API.
Option Name | Description |
---|---|
strict | Optional. When True , if you call a command that isn't part of
the declared API version, the driver raises an exception.Default: False |
deprecation_errors | Optional. When True , if you call a command that is deprecated in the
declared API version, the driver raises an exception.Default: False |
The following code example shows how you can use these parameters when constructing a
ServerApi
object:
from pymongo import MongoClient from pymongo.server_api import ServerApi client = MongoClient("mongodb://<username>:<password>@<hostname:<port>", server_api=ServerApi("1", strict=True, deprecation_errors=True))
Troubleshooting
Unrecognized field 'apiVersion' on server
PyMongo raises this exception if you specify an API version and connect to a MongoDB server that doesn't support the Stable API. Ensure you're connecting to a deployment running MongoDB Server v5.0 or later.
Provided apiStrict:true, but the command count is not in API Version
PyMongo raises this exception if your MongoClient
runs an operation that
isn't in the Stable API version you specified. To avoid this error, use an alternative
operation supported by the specified Stable API version, or set the strict
option to False
when constructing your ServerApi
object.
API Documentation
For more information about using the Stable API with PyMongo, see the following API documentation: