Function fetchProjectID

packages/arctic/src/auth/antigravity-oauth/oauth.ts:79–145

(accessToken: string)

}

async function fetchProjectID(accessToken: string): Promise<string> {
  const errors: string[] = [];
  // Use CLIProxy-aligned headers for project discovery to match "real" Antigravity clients.
  const loadHeaders: Record<string, string> = {
    Authorization: `Bearer ${accessToken}`,
    "Content-Type": "application/json",
    "User-Agent": "google-api-nodejs-client/9.15.1",
    "X-Goog-Api-Client": "google-cloud-sdk vscode_cloudshelleditor/0.1",
    "Client-Metadata": ANTIGRAVITY_HEADERS["Client-Metadata"],
  };

  const loadEndpoints = Array.from(
    new Set<string>([...ANTIGRAVITY_LOAD_ENDPOINTS, ...ANTIGRAVITY_ENDPOINT_FALLBACKS]),
  );

  for (const baseEndpoint of loadEndpoints) {
    try {
      const url = `${baseEndpoint}/v1internal:loadCodeAssist`;
      const response = await fetch(url, {
        method: "POST",
        headers: loadHeaders,
        body: JSON.stringify({
          metadata: {
            ideType: "IDE_UNSPECIFIED",
            platform: "PLATFORM_UNSPECIFIED",
            pluginType: "GEMINI",
          },
        }),
      });

      if (!response.ok) {
        const message = await response.text().catch(() => "");
        errors.push(
          `loadCodeAssist ${response.status} at ${baseEndpoint}${
            message ? `: ${message}` : ""
          }`,
        );
        continue;
      }

      const data = await response.json();
      if (typeof data.cloudaicompanionProject === "string" && data.cloudaicompanionProject) {
        return data.cloudaicompanionProject;
      }
      if (
        data.cloudaicompanionProject &&
        typeof data.cloudaicompanionProject.id === "string" &&
        data.cloudaicompanionProject.id
      ) {
        return data.cloudaicompanionProject.id;
      }

      errors.push(`loadCodeAssist missing project id at ${baseEndpoint}`);
    } catch (e) {
      errors.push(
        `loadCodeAssist error at ${baseEndpoint}: ${
          e instanceof Error ? e.message : String(e)
        }`,