helper method for promoise fetch. which expects promise as an argument.

Promise-fetcher.js

// Helper method to handle error and expact only error or result.
export const createFetcher = promiseFunc => {
  return {
    read: arg => {
      try {
        return promiseFunc(arg)
          .then(response => {
            if (!response) {
              return {error: 'error!'};
            }
            if (typeof response.data !== 'object') {
              return {error: 'error!'};
            }

            if (!response.data.error && response.data.error) {
              console.error(cart_result.error_message);
              return {error: 'error!'};
            }
            return response.data;
          },
          reject => {
            return {error: reject};
          });
      }
      catch (error) {
        return new Promise(
          resolve => resolve({error: error})
        );
      }
    }
  }
}

// API promise
export const fetchApiCall = arg => {
  const GET_URL = `https://api.com/some/fake/request/${arg.id}/${arg.name}`;
  return Axios.get(GET_URL);
};

// Usage:
makeApiCall = () => {
  const apiFetcher = createFetcher(
    fetchApiCall
  );
  
  let apirequest = apiFetcher.read({
    id: 1,
    name: 'something'
  });
  apirequest.then(
    response => {
      if (typeof response.error === 'undefined') {
        this.setState({updatestate})
      }
    }
  );
}