AWS Lambda - NodeJS

Learn how to configure AWS Lambda functions for NodeJS for use with Filebase.

What is AWS Lambda?

AWS Lambda is a service offered by Amazon Web Services that offers a serverless computing platform for creating event-driven pieces of code. Lambda automatically manages any computing resources required for the code, so there is no configuration or development environment required by the end-user.

In this guide, we’ll use Lambda for creating a PutObject function using NodeJS. This can be modified for a variety of different API requests, such as GetObject and CreateBucket, and can be used with different SDKs and Runtimes. For a list of supported SDKs and associated API request examples, check out our SDK documentation here.

Read below to learn how to configure AWS Lambda functions for NodeJS use with Filebase.

Prerequisites:

Have an AWS Account configured to be used on the us-east-1 region.
Sign up for a free Filebase account.
Have your Filebase Access and Secret Keys. Learn how to view your access keys here.
Create a Filebase Bucket. Learn how to create a bucket here.

2. Search ‘Lambda’ in the search bar, then select the Lambda service.

3. Select ‘Create function’ from the left.

5. Enter the following code in the code tab:

const AWS = require('aws-sdk');
const fs = require('fs');

exports.handler =  async function(event, context) {
}

const s3 = new AWS.S3({
    endpoint: 'https://s3.filebase.com',
    region: 'us-east-1',
    signatureVersion: 'v4',
    accessKeyId: 'FILEBASE-ACCESS-KEY',
    secretAccessKey: 'FILEBASE-SECRET-KEY',
});

fs.readFile('image.png', (err, data) => {
    if (err) {
        console.error(err);
        return;
    }
    
    const params = {
        Bucket: 'BUCKET-NAME',
        Key: 'FILE-NAME.txt',
        ContentType: 'image/png',
        Body: data,
    };
    
    const request = s3.putObject(params);
    request.on('httpHeaders', (statusCode, headers) => {
        print(`CID: ${headers['x-amz-meta-cid']}`);
    });
    request.send();
});