Function init

packages/core/src/js/sdk.tsx:60–188

(passedOptions: ReactNativeOptions)

 * Inits the SDK and returns the final options.
 */
export function init(passedOptions: ReactNativeOptions): void {
  if (isRunningInMetroDevServer()) {
    return;
  }

  const userOptions = {
    ...RN_GLOBAL_OBJ.__SENTRY_OPTIONS__,
    ...passedOptions,
  };

  const maxQueueSize =
    userOptions.maxQueueSize ?? userOptions.transportOptions?.bufferSize ?? DEFAULT_OPTIONS.maxQueueSize;

  const enableNative =
    userOptions.enableNative === undefined || userOptions.enableNative ? NATIVE.isNativeAvailable() : false;

  useEncodePolyfill();
  if (enableNative) {
    enableSyncToNative(getGlobalScope());
    enableSyncToNative(getIsolationScope());
  }

  const getURLFromDSN = (dsn: string | undefined): string | undefined => {
    if (!dsn) {
      return undefined;
    }
    const dsnComponents = makeDsn(dsn);
    if (!dsnComponents) {
      debug.error('Failed to extract url from DSN: ', dsn);
      return undefined;
    }
    const port = dsnComponents.port ? `:${dsnComponents.port}` : '';
    return `${dsnComponents.protocol}://${dsnComponents.host}${port}`;
  };

  const userBeforeBreadcrumb = safeFactory(userOptions.beforeBreadcrumb, {
    loggerMessage: 'The beforeBreadcrumb threw an error',
  });

  // Exclude Dev Server and Sentry Dsn request from Breadcrumbs
  const devServerUrl = getDevServer()?.url;
  const dsn = getURLFromDSN(userOptions.dsn);
  const defaultBeforeBreadcrumb = (breadcrumb: Breadcrumb, _hint?: BreadcrumbHint): Breadcrumb | null => {
    const type = breadcrumb.type || '';
    const url = typeof breadcrumb.data?.url === 'string' ? breadcrumb.data.url : '';
    if (type === 'http' && ((devServerUrl && url.startsWith(devServerUrl)) || (dsn && url.startsWith(dsn)))) {
      return null;
    }
    return breadcrumb;
  };

  const chainedBeforeBreadcrumb = (breadcrumb: Breadcrumb, hint?: BreadcrumbHint): Breadcrumb | null => {
    let modifiedBreadcrumb = breadcrumb;
    if (userBeforeBreadcrumb) {
      const result = userBeforeBreadcrumb(breadcrumb, hint);
      if (result === null) {
        return null;
      }