Onu supports hosting your tasks on AWS Lambda. You’ll need to use a third party library, serverless-http, to wrap the handler provided by Onu.

To get started, add an index.ts file (or index.js) to your onu/ directory and add the following code snippet:

import {OnuClient} from '@onuhq/node';
import serverless from 'serverless-http'

const client = new OnuClient({
  onuPath: 'path/to/your/onu/directory',
  apiKey: process.env.YOUR_API_KEY
  authenticator: (req: Request) => {
    // Optional. Any custom authentication logic that should occur 
    // to ensure that the request is coming from a trusted source.
    // For example, you can validate the `onu-signature` header here.
    return true
  }
})

module.exports.handler = serverless(client.app)

NOTE

The serverless(client.app) call may produce a warning in some Typescript projects. The serverless-http library supports the Onu handler, so you can safely ignore this error. We’re working on fixing the underlying type issue to resolve this error in the future.

From here, your tasks are ready to deploy on AWS Lambda! If you deploy using a .zip archive, you can zip up the directory, excluding any sensitive files, and deploy to AWS Lambda.

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Handler path

For Onu to work with AWS Lambda, you’ll need to set the handler path to /path/to/onu/index.handler

You can update this in the Code section of your Function overview page

That’s all! You can make sure your function is working by calling <your_function_url>/healthcheck.

Next, you can follow the instructions in the Configuring your Onu endpoint section to configure your endpoint in Onu, as well as add any required auth.

Need help? Reach out to us on Discord, or via email at founders@joinonu.com

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