mirror of https://github.com/grafana/grafana.git
51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
package zipkin
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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"github.com/grafana/grafana-plugin-sdk-go/backend"
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"github.com/grafana/grafana-plugin-sdk-go/backend/log"
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)
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type ZipkinClient struct {
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logger log.Logger
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url string
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httpClient *http.Client
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}
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func New(url string, hc *http.Client, logger log.Logger) (ZipkinClient, error) {
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client := ZipkinClient{
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logger: logger,
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url: url,
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httpClient: hc,
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}
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return client, nil
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}
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// Services returns list of services
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// https://zipkin.io/zipkin-api/#/default/get_services
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func (z *ZipkinClient) Services() ([]string, error) {
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services := []string{}
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u, err := url.JoinPath(z.url, "/api/v2/services")
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if err != nil {
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return services, backend.DownstreamError(fmt.Errorf("failed to join url: %w", err))
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}
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res, err := z.httpClient.Get(u)
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if err != nil {
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return services, err
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}
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defer func() {
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if err = res.Body.Close(); err != nil {
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z.logger.Error("Failed to close response body", "error", err)
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}
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}()
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if err := json.NewDecoder(res.Body).Decode(&services); err != nil {
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return services, err
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}
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return services, err
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}
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