DbStoreUpdater._isStoreManifestValid

db.ts

  _isStoreManifestValid(manifest: IStoreManifest|null) {
    // check_manifest_exists(IStoreManifest)
    if (!manifest) {
      console.log('[Db] ERROR: Manifest not found (address = ' + this._address + ')');
      return false;
    }

    // check_manifest_syntax(IStoreManifest)
    if (!validateStoreManifest(manifest)) {
      console.log('[Db] ERROR: Manifest invalid (address = ' + this._address + ')');
      return false;
    }    

    // success!
    return true;
  }