How to retry if response data is empty

[ghost]

Hi

i want to retry the http request if the response data i am receiving is empty. The backend service takes some time to process the data, it return me an empty array if it has not processed yet. The array will hold data if it is successfully processed.

 public async processClassification(instanceId: any, requestId: any): Promise<any> {

        const url = this.config.backendUrl + "/check/classification";

        const options = {
            uri: url,
            headers: {
                "X-IDCHECK-SESSION_ID": instanceId,
            },
            body: {},
            json: true,
            resolveWithFullResponse: true,
        };

        const data = await retry(async (bail) => {

            const res = await request.get(options);

            if (res.body.data.classification.length > 0) {
              bail("got data");
              return;
            }

            return res;
          }, {
            retries: 5,
            });

        return data;
    }

Also to note i using the following library https://github.com/request/request-promise-native to make the actual request

[rrampreeth]

What do we do if we want to retry on. a specific error code? I am not able to use asyn-retry for this.