public void Configure()

in services/collage/csharp/Startup.cs [38:82]
37 lines of code
4 McCabe index (conditional complexity)

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ILogger<Startup> logger)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            logger.LogInformation("Service is starting...");

            app.UseRouting();

            var thumbBucket = GetEnvironmentVariable("BUCKET_THUMBNAILS");
            var projectId = GetEnvironmentVariable("PROJECT_ID");

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapPost("/", async context =>
                {
                    var pictureNames = await GetPictureNames(projectId);
                    if (pictureNames.Count == 0)
                    {
                        logger.LogInformation("Empty collection, no collage to make");
                        context.Response.StatusCode = 204;
                        return;
                    }
                    logger.LogInformation("Picture file names: " + string.Join(", ", pictureNames));

                    var inputStreams = new List<MemoryStream>();
                    var client = await StorageClient.CreateAsync();

                    foreach (var name in pictureNames)
                    {
                        var inputStream = new MemoryStream();
                        await client.DownloadObjectAsync(thumbBucket, name, inputStream);
                        logger.LogInformation($"Downloaded '{name}'...");
                        inputStreams.Add(inputStream);
                    }
                    logger.LogInformation("Downloaded all thumbnails");


                    await CreateCollage(inputStreams, thumbBucket, logger);
                    logger.LogInformation($"Uploaded 'collage.png' to bucket '{thumbBucket}'");
                });
            });
        }