func()

in extension/client.go [95:127]

• 31 lines of code
• 6 McCabe index (conditional complexity)

func (e *Client) Register(ctx context.Context, filename string) (*RegisterResponse, error) {
	const action = "/register"
	url := e.baseURL + action

	reqBody, err := json.Marshal(map[string]interface{}{
		"events": []EventType{Invoke, Shutdown},
	})
	if err != nil {
		return nil, fmt.Errorf("failed to marshal register request body: %w", err)
	}
	httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewBuffer(reqBody))
	if err != nil {
		return nil, fmt.Errorf("failed to create register request: %w", err)
	}
	httpReq.Header.Set(extensionNameHeader, filename)
	httpReq.Header.Set("User-Agent", version.UserAgent)
	httpRes, err := e.httpClient.Do(httpReq)
	if err != nil {
		return nil, fmt.Errorf("extension register request failed: %w", err)
	}
	defer httpRes.Body.Close()

	if httpRes.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("extension register request failed with status %s", httpRes.Status)
	}
	res := RegisterResponse{}
	if err := json.NewDecoder(httpRes.Body).Decode(&res); err != nil {
		return nil, fmt.Errorf("failed to decode register response body: %w", err)
	}
	e.ExtensionID = httpRes.Header.Get(extensionIdentiferHeader)
	e.logger.Debugf("ExtensionID : %s", e.ExtensionID)
	return &res, nil
}