3df34fe064
* Remove cache, pass headers in request, simplify client creation * Add test for http options creation
81 lines
2.5 KiB
Go
81 lines
2.5 KiB
Go
package buffered
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import (
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"fmt"
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"net/http"
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"strings"
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"github.com/grafana/grafana-azure-sdk-go/azsettings"
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"github.com/grafana/grafana-plugin-sdk-go/backend"
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sdkhttpclient "github.com/grafana/grafana-plugin-sdk-go/backend/httpclient"
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"github.com/grafana/grafana/pkg/infra/log"
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"github.com/grafana/grafana/pkg/services/featuremgmt"
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"github.com/grafana/grafana/pkg/tsdb/prometheus/buffered/azureauth"
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"github.com/grafana/grafana/pkg/tsdb/prometheus/middleware"
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"github.com/grafana/grafana/pkg/tsdb/prometheus/utils"
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"github.com/grafana/grafana/pkg/util/maputil"
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"github.com/prometheus/client_golang/api"
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apiv1 "github.com/prometheus/client_golang/api/prometheus/v1"
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)
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// CreateTransportOptions creates options for the http client. Probably should be shared and should not live in the
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// buffered package.
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func CreateTransportOptions(settings backend.DataSourceInstanceSettings, azureSettings *azsettings.AzureSettings, features featuremgmt.FeatureToggles, logger log.Logger) (*sdkhttpclient.Options, error) {
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opts, err := settings.HTTPClientOptions()
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if err != nil {
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return nil, err
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}
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jsonData, err := utils.GetJsonData(settings)
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if err != nil {
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return nil, fmt.Errorf("error reading settings: %w", err)
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}
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httpMethod, _ := maputil.GetStringOptional(jsonData, "httpMethod")
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opts.Middlewares = middlewares(logger, httpMethod)
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// Set SigV4 service namespace
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if opts.SigV4 != nil {
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opts.SigV4.Service = "aps"
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}
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// Azure authentication is experimental (#35857)
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if features.IsEnabled(featuremgmt.FlagPrometheusAzureAuth) {
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err = azureauth.ConfigureAzureAuthentication(settings, azureSettings, &opts)
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if err != nil {
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return nil, fmt.Errorf("error configuring Azure auth: %v", err)
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}
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}
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return &opts, nil
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}
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func CreateClient(roundTripper http.RoundTripper, url string) (apiv1.API, error) {
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cfg := api.Config{
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Address: url,
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RoundTripper: roundTripper,
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}
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client, err := api.NewClient(cfg)
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if err != nil {
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return nil, err
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}
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return apiv1.NewAPI(client), nil
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}
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func middlewares(logger log.Logger, httpMethod string) []sdkhttpclient.Middleware {
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middlewares := []sdkhttpclient.Middleware{
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// TODO: probably isn't needed anymore and should by done by http infra code
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middleware.CustomQueryParameters(logger),
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sdkhttpclient.CustomHeadersMiddleware(),
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}
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// Needed to control GET vs POST method of the requests
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if strings.ToLower(httpMethod) == "get" {
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middlewares = append(middlewares, middleware.ForceHttpGet(logger))
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}
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return middlewares
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}
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