I've trying to call lambda function from another lambda function and get result to execute rest of the lambda.
Basic flow of function is below
X - main lambda function - process A (independent) - process C (need input from process B) - process D - return final dataset Y - Child lambda function - process B ( need input from process A and respond back to X ) This is my code so far
var AWS = require('aws-sdk'); AWS.config.region = 'us-east-1'; var lambda = new AWS.Lambda(); const GetUserCheckoutData: Handler = async (userRequest: EmptyProjectRequest, context: Context, callback: Callback) => { const dboperation = new UserController(); const usercheckoutdata = new CheckOutInfo(); const addresscontroller = new AddressController(); const ordercontroller = new OrderController(); const paypalcreateorder = new PayPalController(); const userid = await dboperation.getUserID(userRequest.invokeemailAddress); usercheckoutdata.useraddressdetails = await addresscontroller.GetListOfAddressByUserID(userid); var orderlist = new Array<Order>(); orderlist = []; orderlist = await ordercontroller.GetCurrentOrder(userid); console.log("Order Complete"); var params = { FunctionName: 'api-ENGG-SellItem', // the lambda function we are going to invoke InvocationType: 'RequestResponse', LogType: 'Tail', Payload: '{ "orderlist" : xxxxxxx }' }; lambda.invoke(params, (err:any, res:any) => { if (err) { callback(err); } console.log(JSON.stringify(res)); callback(null, res.Payload); }); usercheckoutdata.orderID = await paypalcreateorder.CreateOrder(userid , orderlist); usercheckoutdata.orderPreview = await ordercontroller.OrderPreview(userid); //callback(null,usercheckoutdata); }; export { GetUserCheckoutData } I tried a few different ways but flow is not working properly. cross lambda function is executing. but cannot get the response on time.
My child lambda function demo code
import { Handler, Context } from "aws-lambda"; const SellItem: Handler = (event, context, callback) => { context.callbackWaitsForEmptyEventLoop = false; console.log("Other Lambda Function"); setTimeout(() => { callback(null, "My name is Jonathan"); }, 1000 * 10); // 10 seconds delay } export {SellItem} I think since I don't have much NodeJS knowledge this is happening. don't know how to put call back in right way I guess. Any help will be appreciated
