Customizing the Response

You can change any information in the response within adapter.js prior to sending it back to IAP. This includes:

• Handling embedded errors that may not be detected by the generic adapter libraries.
• Performing calculations on the data that is returned and adding the results into the response.
• There is no need to do translations here if schemas are set up properly, but you can if it is desired.

Example: Customizing the response.

// Make the call -
// identifyRequest(entity, action, requestObj, returnDataFlag, callback)
return this.requestHandlerInst.identifyRequest(‘entity’, ‘action', reqObj, true, (irReturnData, irReturnError) => { 
  // if we received an error or there is no response on the results
  // return an error
  if (irReturnError) {
    /* HERE IS WHERE YOU CAN ALTER THE ERROR MESSAGE */
    return callback(null, irReturnError);
  }
  if (!Object.hasOwnProperty.call(irReturnData, 'response')) { 
    const errorObj = this.requestHandlerInst.formatErrorObject(this.id, meth, 'Invalid Response’, [‘action’], null, null, null);
    log.error(`${origin}: ${errorObj.IAPerror.displayString}`);
    return callback(null, errorObj);
  }

  /* HERE IS WHERE YOU CAN ALTER THE RETURN DATA */
  // return the response
  const newObj = {
    number: irReturnData.response.length,
    data: irReturnData.response
  }
  return callback(newObj, null);
});