first commit

internal/worker/interface/interface.go

@@ -0,0 +1,83 @@
+package extapi
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+)
+
+// Client mendefinisikan kontrak fleksibel untuk mengirim HTTP request ke pihak ketiga/API internal.
+type Client interface {
+	PostJSON(ctx context.Context, url string, token string, payload interface{}) ([]byte, int, error)
+	GetJSON(ctx context.Context, url string, token string) ([]byte, int, error)
+}
+
+type clientImpl struct {
+	httpClient *http.Client
+}
+
+// NewClient membuat instance baru dari Client dengan batas timeout tertentu.
+func NewClient(timeout time.Duration) Client {
+	return &clientImpl{
+		httpClient: &http.Client{Timeout: timeout},
+	}
+}
+
+func (c *clientImpl) PostJSON(ctx context.Context, url string, token string, payload interface{}) ([]byte, int, error) {
+	jsonData, err := json.Marshal(payload)
+	if err != nil {
+		return nil, 0, fmt.Errorf("gagal marshal payload: %w", err)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewBuffer(jsonData))
+	if err != nil {
+		return nil, 0, fmt.Errorf("gagal membuat request: %w", err)
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+	if token != "" {
+		req.Header.Set("Authorization", "Bearer "+token)
+	}
+
+	res, err := c.httpClient.Do(req)
+	if err != nil {
+		return nil, 0, fmt.Errorf("request gagal dieksekusi: %w", err)
+	}
+	defer res.Body.Close()
+
+	respBody, err := io.ReadAll(res.Body)
+	if err != nil {
+		return nil, res.StatusCode, fmt.Errorf("gagal membaca body response: %w", err)
+	}
+
+	return respBody, res.StatusCode, nil
+}
+
+func (c *clientImpl) GetJSON(ctx context.Context, url string, token string) ([]byte, int, error) {
+	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
+	if err != nil {
+		return nil, 0, fmt.Errorf("gagal membuat request: %w", err)
+	}
+
+	req.Header.Set("Accept", "application/json")
+	if token != "" {
+		req.Header.Set("Authorization", "Bearer "+token)
+	}
+
+	res, err := c.httpClient.Do(req)
+	if err != nil {
+		return nil, 0, fmt.Errorf("request gagal dieksekusi: %w", err)
+	}
+	defer res.Body.Close()
+
+	respBody, err := io.ReadAll(res.Body)
+	if err != nil {
+		return nil, res.StatusCode, fmt.Errorf("gagal membaca body response: %w", err)
+	}
+
+	return respBody, res.StatusCode, nil
+}