Function fetchUrlManifest

src/hooks/urlLoaderManifestFetch.ts:590–624

(
  manifestUrl: string,
  deps: FetchUrlManifestDeps
)

}

export async function fetchUrlManifest(
  manifestUrl: string,
  deps: FetchUrlManifestDeps
): Promise<ColmapManifest> {
  const fetchImpl = deps.fetchImpl ?? defaultFetchUrl;
  deps.setUrlProgress({ percent: 2, message: 'Fetching manifest...' });

  const response = await fetchImpl(manifestUrl);

  if (!response.ok) {
    const errorType: UrlLoadErrorType = response.status === 404 ? 'not_found' : 'network';
    const error: UrlLoadError = {
      type: errorType,
      message: `Failed to fetch manifest (${response.status})`,
      details: response.statusText,
      failedFile: manifestUrl,
    };
    throw error;
  }

  const data = await response.json();
  const result = validateColmapManifest(data);
  if (!result.success) {
    const error: UrlLoadError = {
      type: 'invalid_manifest',
      message: 'Invalid manifest format',
      details: result.details,
      failedFile: manifestUrl,
    };
    throw error;
  }

  deps.setUrlProgress({ percent: 5, message: 'Manifest loaded' });
  return result.manifest;
}

export async function fetchManifestFile(
  baseUrl: string,