Files
grafana/pkg/services/gcom/gcom.go
2024-11-21 20:46:06 +02:00

88 lines
2.2 KiB
Go

package gcom
import (
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"github.com/grafana/grafana/pkg/infra/log"
)
const LogPrefix = "gcom.service"
var ErrTokenNotFound = errors.New("gcom: token not found")
type Service interface {
GetInstanceByID(ctx context.Context, requestID string, instanceID string) (Instance, error)
}
type Instance struct {
ID int `json:"id"`
Slug string `json:"slug"`
RegionSlug string `json:"regionSlug"`
ClusterSlug string `json:"clusterSlug"`
OrgId int `json:"orgId"`
}
type GcomClient struct {
log log.Logger
cfg Config
httpClient *http.Client
}
type Config struct {
ApiURL string
Token string
}
func New(cfg Config, httpClient *http.Client) Service {
return &GcomClient{
log: log.New(LogPrefix),
cfg: cfg,
httpClient: httpClient,
}
}
func (client *GcomClient) GetInstanceByID(ctx context.Context, requestID string, instanceID string) (Instance, error) {
endpoint, err := url.JoinPath(client.cfg.ApiURL, "/instances/", instanceID)
if err != nil {
return Instance{}, fmt.Errorf("building gcom instance url: %w", err)
}
request, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint, nil)
if err != nil {
return Instance{}, fmt.Errorf("creating http request: %w", err)
}
request.Header.Set("x-request-id", requestID)
request.Header.Set("Content-Type", "application/json")
request.Header.Set("Authorization", fmt.Sprintf("Bearer %s", client.cfg.Token))
response, err := client.httpClient.Do(request)
if err != nil {
return Instance{}, fmt.Errorf("sending http request to create fetch instance by id: %w", err)
}
defer func() {
if err := response.Body.Close(); err != nil {
client.log.Error("closing http response body", "err", err.Error())
}
}()
if response.StatusCode != http.StatusOK {
body, _ := io.ReadAll(response.Body)
return Instance{}, fmt.Errorf("unexpected response when fetching instance by id: code=%d body=%s", response.StatusCode, body)
}
var instance Instance
if err := json.NewDecoder(response.Body).Decode(&instance); err != nil {
return instance, fmt.Errorf("unmarshaling response body: %w", err)
}
return instance, nil
}