router-for-me/CLIProxyAPI · error

read response: %w

Error message

read response: %w

What it means

Returned by AntigravityAuth.FetchProjectID when io.ReadAll on the loadCodeAssist response body fails after a successful HTTP exchange. The request already reached the server and headers were received; the failure happens mid-body. Typical causes are the connection dropping during transfer, the server closing early, or the request context being cancelled while the body streams.

Source

Thrown at internal/auth/antigravity/auth.go:260

	}
	req.Header.Set("Authorization", "Bearer "+accessToken)
	req.Header.Set("Accept", "*/*")
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("User-Agent", userAgent)

	resp, errDo := o.httpClient.Do(req)
	if errDo != nil {
		return "", fmt.Errorf("execute request: %w", errDo)
	}
	defer func() {
		if errClose := resp.Body.Close(); errClose != nil {
			log.Errorf("antigravity loadCodeAssist: close body error: %v", errClose)
		}
	}()

	bodyBytes, errRead := io.ReadAll(resp.Body)
	if errRead != nil {
		return "", fmt.Errorf("read response: %w", errRead)
	}

	if resp.StatusCode < http.StatusOK || resp.StatusCode >= http.StatusMultipleChoices {
		return "", fmt.Errorf("request failed with status %d: %s", resp.StatusCode, strings.TrimSpace(string(bodyBytes)))
	}

	var loadResp map[string]any
	if errDecode := json.Unmarshal(bodyBytes, &loadResp); errDecode != nil {
		return "", fmt.Errorf("decode response: %w", errDecode)
	}

	projectID := extractCloudaicompanionProject(loadResp)

	if projectID == "" {
		projectID, err = o.OnboardUser(ctx, accessToken, defaultAntigravityTierID(loadResp))
		if err != nil {
			return "", err
		}

View on GitHub (pinned to 78f0c4079e)

Solutions

1. Retry the authentication flow: FetchProjectID is called during login/refresh, and a transient truncation resolves on the next attempt
2. Check whether the parent context has a deadline shorter than the full HTTP round trip and lengthen or remove it
3. If persistent, capture the underlying error (unexpected EOF vs context.Canceled) and inspect the proxy chain for response truncation

if _, err := auth.FetchProjectID(ctx, token); err != nil {
    if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
        return err
    }
    time.Sleep(2 * time.Second)
    _, err = auth.FetchProjectID(ctx, token)
    if err != nil { return err }
}

When it happens

Trigger: Connection reset between response headers and body completion on cloudcode-pa.googleapis.com; ctx cancelled while io.ReadAll is draining the body; intermediary (proxy/ALB) truncating the response.

Common situations: Flaky mobile or containerized networking; aggressive proxy idle timeouts that cut long responses; a parent context with a short deadline passed into the OAuth refresh flow that includes FetchProjectID.

Related errors

• failed to read token response: %w
• failed to read refresh response: %w
• antigravity token exchange: create request: %w
• antigravity token exchange: execute request: %w
• antigravity token exchange: read response: %w

AI-assisted analysis of router-for-me/CLIProxyAPI@78f0c4079e (2026-08-15). Data as JSON: /api/errors/55807306bd9085ab. Report an issue: GitHub.