public async Task GetResourceAsync()

in src/Azure.Deployments.Extensibility.Extensions.Kubernetes/KubernetesExtension.cs [93:128]
28 lines of code
6 McCabe index (conditional complexity)

        public async Task<IResult> GetResourceAsync(HttpContext httpContext, ResourceReference resourceReference, CancellationToken cancellationToken)
        {
            this.resourceReferenceValidator.ValidateAndThrow(resourceReference);

            var groupVersionKind = ModelMapper.MapToGroupVersionKind(resourceReference.Type, resourceReference.ApiVersion);
            var identifiers = ModelMapper.MapToK8sObjectIdentifiers(resourceReference.Identifiers);
            
            using var client = await this.k8sClientFactory.CreateAsync(resourceReference.Config);

            // Do config ID checksum validation if one is supplied. 
            if (resourceReference.ConfigId is not null && !TryMatchConfigurationId(resourceReference.ConfigId, CalculateConfigId(client), out var configIdErrorResult))
            {
                return configIdErrorResult;
            }
            
            var api = await new K8sApiDiscovery(client).FindApiAsync(groupVersionKind, cancellationToken);

            if (await api.GetObjectAsync(identifiers, cancellationToken) is { } k8sObject)
            {
                var configId = CalculateConfigId(client);
                return Results.Ok(ModelMapper.MapToResource(identifiers, k8sObject, configId));
            }

            var @namespace = api.Namespaced ? identifiers.Namespace ?? client.DefaultNamespace : null;

            return Results.NotFound(new ErrorData
            {
                Error = new()
                {
                    Code = "ObjectNotFound",
                    Message = @namespace is null
                        ? $"The referenced Kubernetes object (GroupVersionKind={groupVersionKind}, Name={identifiers.Name}) was not found."
                        : $"The referenced Kubernetes object (GroupVersionKind={groupVersionKind}, Name={identifiers.Name}, Namespace={@namespace}) was not found.",
                },
            });
        }