Method prepareTransforms

packages/cli/src/util/dev/server.ts:1479–1493

(
    req: http.IncomingMessage,
    requestTransforms: Transform[] | undefined,
    responseTransforms?: Transform[] | undefined
  )

  }

  private prepareTransforms(
    req: http.IncomingMessage,
    requestTransforms: Transform[] | undefined,
    responseTransforms?: Transform[] | undefined
  ): void {
    // Request-side transforms are applied immediately to the outgoing request
    if (requestTransforms && requestTransforms.length > 0) {
      applyRequestTransforms(req, requestTransforms);
    }
    // Response-side transforms are deferred: store the latest context so
    // it can be applied once the response comes back
    if (responseTransforms && hasResponseTransforms(responseTransforms)) {
      this.responseTransformsByReq.set(req, responseTransforms);
    }
  }

  clearResponseTransforms(req: http.IncomingMessage): void {
    this.responseTransformsByReq.delete(req);