static async getInitialProps()

in src/frontend/pages/_document.tsx [11:44]
30 lines of code
2 McCabe index (conditional complexity)

  static async getInitialProps(ctx: DocumentContext) {
    const sheet = new ServerStyleSheet();
    const originalRenderPage = ctx.renderPage;

    try {
      ctx.renderPage = () =>
        originalRenderPage({
          enhanceApp: App => props => sheet.collectStyles(<App {...props} />),
        });

      const initialProps = await Document.getInitialProps(ctx);
      const baggage = propagation.getBaggage(context.active());
      const isSyntheticRequest = baggage?.getEntry('synthetic_request')?.value === 'true';

      const otlpTracesEndpoint = isSyntheticRequest
          ? `http://${OTEL_COLLECTOR_HOST}:4318/v1/traces`
          : PUBLIC_OTEL_EXPORTER_OTLP_TRACES_ENDPOINT;

      const envString = `
        window.ENV = {
          NEXT_PUBLIC_PLATFORM: '${ENV_PLATFORM}',
          NEXT_PUBLIC_OTEL_SERVICE_NAME: '${WEB_OTEL_SERVICE_NAME}',
          NEXT_PUBLIC_OTEL_EXPORTER_OTLP_TRACES_ENDPOINT: '${otlpTracesEndpoint}',
          IS_SYNTHETIC_REQUEST: '${isSyntheticRequest}',
        };`;
      return {
        ...initialProps,
        styles: [initialProps.styles, sheet.getStyleElement()],
        envString,
      };
    } finally {
      sheet.seal();
    }
  }