# Lambda is not a function

**URL:** https://forum.serverless.com/t/lambda-is-not-a-function/13208
**Category:** Serverless Framework
**Created:** [November 24, 2020, 11:17pm UTC](https://forum.serverless.com/t/lambda-is-not-a-function/13208 "2020-11-24T23:17:46Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![delruan](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@delruan](https://forum.serverless.com/u/delruan)
#### Post date: [November 24, 2020, 11:17pm UTC](https://forum.serverless.com/t/lambda-is-not-a-function/13208/1 "2020-11-24T23:17:46Z")

</div>

Hi,

I’m trying to invoke my function locally, but he keeps saying that ‘Lambda is not a function’. I don’t understand why because the generated file definitely exports a function.

My setup:

webpack.config.js

```
const path = require('path');
const slsw = require("serverless-webpack");

module.exports = {
  target: 'node',
  entry: slsw.lib.entries,
  output: {
    library: "default",
    filename: '[name].js',
    path: path.join(__dirname, '.webpack'),
    libraryTarget: "commonjs"
  },
  mode: "production",
  module: {
    rules: [
      {
        test: /\.js|\.jsx$/,
        exclude: /node_modules/,
        use: 'babel-loader',
      },
      {
        test: /\.module\.scss$/,
        use: [
          {
            loader: 'css-loader',
            options: {
              sourceMap: true,
              url: true,
              modules: {
                exportLocalsConvention: 'camelCase',
                localIdentName: '[path][name]__[local]--[hash:base64:5]',
              },
            },
          },
          {
            loader: 'sass-loader',
            options: {
              sourceMap: true,
              sassOptions: {
                includePaths: [path.resolve(__dirname, '../node_modules')],
              },
            },
          },
        ],
      },
    ],
  },
  resolve: {
    extensions: ['.js', '.jsx'],
  }
};

```

serverless.yml

```
service: component1

plugins:
  - serverless-webpack
  - serverless-express

custom:
  webpack:
    packager: yarn

provider:
  name: aws
  runtime: nodejs12.x
  region: eu-west-1

functions:
  test:
    handler: handler.default
    events:
      - http:
          method: post
          path: /
    environment:
      SERVERLESS_EXPRESS_PLATFORM: aws

```

Output

```
exports.default=function(e){var t={};function n(r){....

var ...

var ...
```