router-for-me/CLIProxyAPI · error

antigravity userinfo: missing access token

Error message

antigravity userinfo: missing access token

What it means

FetchUserInfo was called with an access token that is empty after trimming whitespace. This is a caller-side validation failure before any HTTP request is made — the token passed in was "", whitespace-only, or never populated.

Source

Thrown at internal/auth/antigravity/auth.go:185

		body := strings.TrimSpace(string(bodyBytes))
		if body == "" {
			return nil, fmt.Errorf("antigravity token exchange: request failed: status %d", resp.StatusCode)
		}
		return nil, fmt.Errorf("antigravity token exchange: request failed: status %d: %s", resp.StatusCode, body)
	}

	var token TokenResponse
	if errDecode := json.NewDecoder(resp.Body).Decode(&token); errDecode != nil {
		return nil, fmt.Errorf("antigravity token exchange: decode response: %w", errDecode)
	}
	return &token, nil
}

// FetchUserInfo retrieves user email from Google
func (o *AntigravityAuth) FetchUserInfo(ctx context.Context, accessToken string) (string, error) {
	accessToken = strings.TrimSpace(accessToken)
	if accessToken == "" {
		return "", fmt.Errorf("antigravity userinfo: missing access token")
	}
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, UserInfoEndpoint, nil)
	if err != nil {
		return "", fmt.Errorf("antigravity userinfo: create request: %w", err)
	}
	req.Header.Set("Authorization", "Bearer "+accessToken)
	req.Header.Set("User-Agent", o.shortUserAgent())

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

View on GitHub (pinned to 78f0c4079e)

Solutions

1. Complete ExchangeCodeForTokens first and check its error before fetching user info
2. Verify the field you pass actually carries the token (log its length, never the value)
3. Add a guard at the call site to skip the userinfo step when the token is empty

Example fix

// before
email, err := auth.FetchUserInfo(ctx, token.AccessToken)

// after
if token == nil || strings.TrimSpace(token.AccessToken) == "" {
	return errors.New("cannot fetch userinfo: no access token")
}
email, err := auth.FetchUserInfo(ctx, token.AccessToken)

if token == nil || strings.TrimSpace(token.AccessToken) == "" {
	return errors.New("skip userinfo: no access token")
}
email, err := auth.FetchUserInfo(ctx, token.AccessToken)

func hasAccessToken(t *TokenResponse) bool {
	return t != nil && strings.TrimSpace(t.AccessToken) != ""
}

When it happens

Trigger: Calling FetchUserInfo with an empty string; passing TokenResponse.AccessToken from a zero-value struct; token field name typo (e.g. accessToken vs access_token) leaving the variable empty.

Common situations: Calling userinfo before completing the token exchange; nil-check missed on the TokenResponse pointer and reading its zero-value field; a test calling with an unset fixture value.

Related errors

• antigravity userinfo: request failed: status %d
• antigravity token exchange: create request: %w
• antigravity token exchange: execute request: %w
• antigravity token exchange: read response: %w
• antigravity token exchange: request failed: status %d

AI-assisted analysis of router-for-me/CLIProxyAPI@78f0c4079e (2026-08-15). Data as JSON: /api/errors/ce3aff49d29a840e. Report an issue: GitHub.