Npgsql.DependencyInjection 7.0.1

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.NET 7.0 .NET Standard 2.0
dotnet add package Npgsql.DependencyInjection --version 7.0.1
NuGet\Install-Package Npgsql.DependencyInjection -Version 7.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Npgsql.DependencyInjection" Version="7.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Npgsql.DependencyInjection --version 7.0.1
#r "nuget: Npgsql.DependencyInjection, 7.0.1"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Npgsql.DependencyInjection as a Cake Addin
#addin nuget:?package=Npgsql.DependencyInjection&version=7.0.1

// Install Npgsql.DependencyInjection as a Cake Tool
#tool nuget:?package=Npgsql.DependencyInjection&version=7.0.1

Npgsql is the open source .NET data provider for PostgreSQL. It allows you to connect and interact with PostgreSQL server using .NET.

This package helps set up Npgsql in applications using dependency injection, notably ASP.NET applications. It allows easy configuration of your Npgsql connections and registers the appropriate services in your DI container.

For example, if using the ASP.NET minimal web API, simply use the following to register Npgsql:

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddNpgsqlDataSource("Host=pg_server;Username=test;Password=test;Database=test");

This registers a transient NpgsqlConnection which can get injected into your controllers:

app.MapGet("/", async (NpgsqlConnection connection) =>
{
    await connection.OpenAsync();
    await using var command = new NpgsqlCommand("SELECT number FROM data LIMIT 1", connection);
    return "Hello World: " + await command.ExecuteScalarAsync();
});

But wait! If all you want is to execute some simple SQL, just use the singleton NpgsqlDataSource to execute a command directly:

app.MapGet("/", async (NpgsqlDataSource dataSource) =>
{
    await using var command = dataSource.CreateCommand("SELECT number FROM data LIMIT 1");
    return "Hello World: " + await command.ExecuteScalarAsync();
});

NpgsqlDataSource can also come in handy when you need more than one connection:

app.MapGet("/", async (NpgsqlDataSource dataSource) =>
{
    await using var connection1 = await dataSource.OpenConnectionAsync();
    await using var connection2 = await dataSource.OpenConnectionAsync();
    // Use the two connections...
});

Finally, the AddNpgsqlDataSource method also accepts a lambda parameter allowing you to configure aspects of Npgsql beyond the connection string.

For more information, see the Npgsql documentation.

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48 net481
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NuGet packages

This package is not used by any NuGet packages.

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on Npgsql.DependencyInjection:

Repository Stars
npgsql/efcore.pg
Entity Framework Core provider for PostgreSQL
Version Downloads Last updated
7.0.1 6,669 12/17/2022
7.0.0 4,224 11/9/2022
7.0.0-rc.2 947 10/11/2022
7.0.0-rc.1 780 9/16/2022
7.0.0-preview.7 402 8/9/2022
7.0.0-preview.6 65 7/13/2022