AWS Lambda module initialization error

Question

I have recently started Lambda function development on AWS. When try to import a JavaScript file I am getting the following error,

module initialization error: ReferenceError
at Object.<anonymous> (/var/task/model/claim_type.js:3:29)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (/var/task/index.js:2:19)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)

In root level I have the index.js file and claim_type.js file inside the model directory.

index.js

const Sequelize = require('sequelize');
const ClaimType = require('./model/claim_type.js');

exports.handler = function (event, context, callback) {
    //function content
}

claim_type.js

const Sequelize = require('sequelize');

const ClaimType = sequelize.define('claimtype', {
    id: {
        type: Sequelize.INTEGER,
        autoIncrement: true,
        primaryKey: true
    },
    name: {
        type: Sequelize.STRING
    }
}, {
        timestamps: false
    });

module.exports = ClaimType;

What is the correct way to import the claim_type.js?

It looks like sequelize isn't found. Are you deploying the node_modules directory with you own sources to lamdba? — mtkopone
– mtkopone, Commented Aug 10, 2017 at 11:42
yes, I am using the command zip -r Lambda-Deployment.zip * -x *.zip *.json *.log to create the zip file. I think it's not related to the sequelize because it was working fine until I moved the ClaimType to a separate file. — Lakmal
– Lakmal, Commented Aug 10, 2017 at 12:04

UXDart · Accepted Answer · 2017-08-10 13:06:12Z

2

const Sequelize = require('sequelize');

const ClaimType = sequelize.define('claimtype', {

your const is Camelcase, but the second line is lowercase!

answered Aug 10, 2017 at 13:06

UXDart

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