Minimal API endpoints

LabDemo.MinimalApi.Program.cs

// In the real world, this would be coming from a service -- data access, dbContext, or repo, etc
var records = builder.Configuration.GetSection("LabRecords").Get<List<FlattenedLabRecord>>();

// API ROUTING

app.MapGet("/", () => { return records; });

app.MapGet("/LabRecords", () => { return records; })
    .WithOpenApi();

app.MapGet("/LabNames", () => { return records?.Select(r => r.Name).Distinct(); })
    .WithOpenApi();

app.MapGet("/LabRecords/Search", (string LabName) =>
{
    return records?.Where(r => r.Name.ToUpper() == LabName.ToUpper());
})
    .WithOpenApi();

// REFERENCE
// If a need exists to bind complex parameters, see https://code-maze.com/aspnetcore-query-string-parameters-minimal-apis/