How to add Api key validation in Swagger

Just a quick post on how to add api key validation in swagger docs. Pretty easy and here is the code to add in AddSwaggerGen in the program.cs file. You can define your own Api key validation middleware.

    builder.Services.AddSwaggerGen(c =>
    {
        c.AddSecurityDefinition("api_key", new OpenApiSecurityScheme
        {
            Type = SecuritySchemeType.ApiKey,
            Name = "Authorization",
            In = ParameterLocation.Header,
            Description = "API key needed to access the endpoints."
        });

        // Define your security requirement (optional)
        c.AddSecurityRequirement(new OpenApiSecurityRequirement
        {
            {
                new OpenApiSecurityScheme
                {
                    Reference = new OpenApiReference
                    {
                        Type = ReferenceType.SecurityScheme,
                        Id = "api_key"
                    }
                },
                new string[] { }
            }
        });
    });