node.js - AWS Lambda: Unable to import module -

please forgive me, totally new @ lambda , node.

i trying replicate this git order pizza using aws iot button.

my current code is:

var pizzapi = require('dominos');    var mystore = new pizzapi.store(      {          id: 'example'      }  );    var myaddress = new pizzapi.address(          {              street: 'example',              city: 'example',              region: 'example',              postalcode: 'example'          }      );    var mycustomer = new pizzapi.customer(      {          firstname: 'example',          lastname: 'example',          address: myaddress,          phone: 'example',          email: 'example@gmail.com'      }  );    var order = new pizzapi.order(      {          customer: mycustomer,          storeid: mystore.id      }  );    var cardnumber='example';  var cardinfo = new order.paymentobject();  cardinfo.amount = order.amounts.customer;  cardinfo.number = cardnumber;  cardinfo.cardtype = order.validatecc(cardnumber);  cardinfo.expiration = 'example';  cardinfo.securitycode = 'example';  cardinfo.postalcode = 'example';    order.payments.push(cardinfo);    function orderdominos(event, context) {    var clicktype = event.clicktype;    switch(clicktype.tolowercase()) {      case "single": {        order.additem(            new pizzapi.item(                {                    code: 'p_14screen',                    options: {},                    quantity: 1                }            )        );        break;      }      case "double": {          order.additem(            new pizzapi.item(                {                    code: 'p_14screen',                    options: {},                    quantity: 1                }            )        );        break;      }      case "long": {          order.additem(            new pizzapi.item(                {                    code: 'p_14screen',                    options: {},                    quantity: 1                }            )        );        break;      }    }    order.validate(        function(result) {            console.log("order validated");        }    );    order.price(        function(result) {              console.log("order priced");        }    );    order.place(        function(result) {            console.log("price is", result.result.order.amounts, "\nestimated wait time",result.result.order.estimatedwaitminutes, "minutes");            console.log("order placed!");            context.succeed(event);        }    );  }    exports.handler = orderdominos;

the file structure is:

• orderdominos.js
• node_modules/dominos

i zipped files, uploaded lambda, , pointed header "index.handler"

what doing wrong?

edit: error

unable import module 'orderdominos': error  @ function.module._resolvefilename (module.js:325:15)  @ function.module._load (module.js:276:25)  @ module.require (module.js:353:17)  @ require (internal/module.js:12:17)  @ object.<anonymous> (/var/task/node_modules/dominos/src/http-json.js:1:74)  @ module._compile (module.js:409:26)  @ object.module._extensions..js (module.js:416:10)  @ module.load (module.js:343:32)  @ function.module._load (module.js:300:12)  @ module.require (module.js:353:17)

in case, mentioned handler index.handler root filename app.js. changing index.js worked.

also make sure zip file has index.js, node_modules , package.json directly.

should be:

zip file --> index.js              package.json              node_modules 

not

zip file --> some_folder_name --> index.js                                   package.json                                   node_modules