AzureMonitor: strongly-typed AzureCredentials and correct resolution of auth type and cloud (#36284)

pkg/tsdb/azuremonitor/httpclient.go

@@ -0,0 +1,41 @@
+package azuremonitor
+
+import (
+	"net/http"
+
+	"github.com/grafana/grafana-plugin-sdk-go/backend/httpclient"
+	"github.com/grafana/grafana/pkg/setting"
+	"github.com/grafana/grafana/pkg/tsdb/azuremonitor/aztokenprovider"
+)
+
+func httpClientProvider(route azRoute, model datasourceInfo, cfg *setting.Cfg) (*httpclient.Provider, error) {
+	var clientProvider *httpclient.Provider
+
+	if len(route.Scopes) > 0 {
+		tokenProvider, err := aztokenprovider.NewAzureAccessTokenProvider(cfg, model.Credentials)
+		if err != nil {
+			return nil, err
+		}
+
+		clientProvider = httpclient.NewProvider(httpclient.ProviderOptions{
+			Middlewares: []httpclient.Middleware{
+				aztokenprovider.AuthMiddleware(tokenProvider, route.Scopes),
+			},
+		})
+	} else {
+		clientProvider = httpclient.NewProvider()
+	}
+
+	return clientProvider, nil
+}
+
+func newHTTPClient(route azRoute, model datasourceInfo, cfg *setting.Cfg) (*http.Client, error) {
+	model.HTTPCliOpts.Headers = route.Headers
+
+	clientProvider, err := httpClientProvider(route, model, cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return clientProvider.New(model.HTTPCliOpts)
+}