Using a Mock OIDC / Oauth2 Server for Development and Testing

By Jeff Gonzalez

Hypertheory, Hypertheory-LabsCreated on: 3/26/2023

Steps

Package

Install the Nuget Package Microsoft.AspNetCore.Authentication.JwtBearer

Install Services / Middleware

In Program.cs:

builder.Services.AddAuthentication().AddJwtBearer(options =>  
{  
    options.RequireHttpsMetadata = !builder.Environment.IsDevelopment();  
});  
  
builder.Services.AddAuthorization();

And then:

app.UseAuthentication();  
app.UseAuthorization();

In appsettings.development.json, add a configuration called Authentication:

"Authentication": {
    "Schemes": {
      "Bearer": {
        "Authority": "http://localhost:8080",
        "ValidAudiences": [
          "default"
        ],
        "ValidIssuer": "http://localhost:8080"
      }
    }
  }

To start the Mock server, using Docker:

docker run -d -p 8080:8080 ghcr.io/navikt/mock-oauth2-server

Or use a docker-compose.yml:

services:
  mock-oidc:
    image: ghcr.io/navikt/mock-oauth2-server:0.5.6
    ports:
      - 8080:8080