Aspire.MongoDB.Driver.v3

Aspire.MongoDB.Driver library

Registers IMongoClient in the DI container for connecting MongoDB database.

Getting started

Prerequisites

• MongoDB database and connection string for accessing the database.

Install the package

Install the .NET Aspire MongoDB.Driver library with NuGet:

dotnet add package Aspire.MongoDB.Driver

Usage example

In the AppHost.cs file of your project, call the AddMongoDBClient extension method to register a IMongoClient for use via the dependency injection container. The method takes a connection name parameter.

builder.AddMongoDBClient("mongodb");

You can then retrieve a IMongoClient instance using dependency injection. For example, to retrieve a connection from a Web API controller:

private readonly IMongoClient _client;

public ProductsController(IMongoClient client)
{
    _client = client;
}

Configuration

The .NET Aspire MongoDB component provides multiple options to configure the database connection based on the requirements and conventions of your project.

Use a connection string

When using a connection string from the ConnectionStrings configuration section, you can provide the name of the connection string when calling builder.AddMongoDBClient():

builder.AddMongoDBClient("myConnection");

And then the connection string will be retrieved from the ConnectionStrings configuration section:

{
  "ConnectionStrings": {
    "myConnection": "mongodb://server:port/test",
  }
}

See the ConnectionString documentation for more information on how to format this connection string.

Use configuration providers

The .NET Aspire MongoDB component supports Microsoft.Extensions.Configuration. It loads the MongoDBSettings from configuration by using the Aspire:MongoDB:Driver key. Example appsettings.json that configures some of the options:

{
  "Aspire": {
    "MongoDB": {
      "Driver": {
        "ConnectionString": "mongodb://server:port/test",
        "DisableHealthChecks": false,
        "HealthCheckTimeout": 10000,
        "DisableTracing": false
      },
    }
  }
}

Use inline delegates

Also you can pass the Action<MongoDBSettings> configureSettings delegate to set up some or all the options inline:

    builder.AddMongoDBClient("mongodb", settings => settings.ConnectionString = "mongodb://server:port/test");

AppHost extensions

In your AppHost project, install the Aspire.Hosting.MongoDB library with NuGet:

dotnet add package Aspire.Hosting.MongoDB

Then, in the AppHost.cs file of AppHost, register a MongoDB database and consume the connection using the following methods:

var mongodb = builder.AddMongoDB("mongodb").AddDatabase("mydatabase");

var myService = builder.AddProject<Projects.MyService>()
                       .WithReference(mongodb);

The WithReference method configures a connection in the MyService project named mongodb. In the Program.cs file of MyService, the database connection can be consumed using:

builder.AddMongoDBClient("mongodb");

Additional documentation

• https://www.mongodb.com/docs/drivers/csharp/current/quick-start/
• https://github.com/dotnet/aspire/tree/main/src/Components/README.md

Feedback & contributing

https://github.com/dotnet/aspire