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Integrate Cloudflare Workers with InfinyOn Cloud

Connect your Cloudflare workers with InfinyOn Cloud for powerful event-processing data pipelines. InfinyOn Cloud’s robust data streaming allows you to seamlessly move and transform data and trigger actions.

In this guide, we’ll build a simple CloudFlare worker that sends events to InfinyOn Cloud through the webhook API.

Use Cases


To follow along you’ll need the following:

Let’s get started.


Create a Webhook

External services send events to InfinyOn Cloud via webhooks, connectors, and custom clients. In this example, we’ll use webhooks.

Use Fluvio CLI to create a webhook on InfinyOn Cloud.

  1. Create a webhook configuration file cf-webhook.yaml:
  name: cf-webhook
  topic: cf-events

  outputParts: body
  outputType: json
  1. Create the webhook endpoint:
$ fluvio cloud webhook create -c cf-webhook.yaml
Webhook "cf-webhook" created with url:

The command returns an endpoint that tells Cloudflare where InfinyOn is listening for events.

Use fluvio cloud webhook list to list all your webhooks.


Build a Cloudflare Worker

Cloudflare uses Wrangler, a command-line tool that helps developers build workers.


Install Wrangler

Use npm to install wrangler:

$ npm install -g wrangler

Create a Worker

Next, we’ll create a directory, write the worker code, and provision a configuration file for wrangler to access our code.

  1. Create a project directory:
$ mkdir cf-infinyon; cd ./cf-infinyon
  1. Create a file index.js and add the following code:
const WEBHOOK_URL = "";

addEventListener("fetch", (event) => {

async function handleRequest(request) {
  let jsonData = await request.json();
  const response = await fetch(WEBHOOK_URL, {
      method: "POST",
      headers: {
        "Content-type": `application/json`,
      body: JSON.stringify(jsonData)

  const text_response = response.ok ? "" : "Webhook gateway error.";

  return new Response(text_response, { status: response.status });

The worker fetches an event, retrieves its JSON payload, and forwards it to the webhook gateway on InfinyOn Cloud.

Note: Update the endpoint link with your own (see above).

  1. Add a wrangler configuraiton file file wrangler.toml and add the following settings:
name = "cf-infinyon"
main = "index.js"
compatibility_date = "2023-09-04"

We are all set to run the code, but first let’s review the directory:

├── index.js
└── wrangler.toml

Test Cloudflare to InfinyOn Cloud Pipeline

With all the components provisioned, we should be ready to test our data pipeline end-to-end.

  1. Start the Cloudflare worker:
$ wrangler dev
Starting local server...
Ready on
  1. Start the InfinyOn Cloud consumer:
$ fluvio consume cf-events --output json
Consuming records from 'cf-events'
  1. Use curl to post an event:
$ curl -v -X POST \
    -H "Content-Type: application/json" \
    -d '{"hello": "world!"}'
  1. The InfinyOn consumer show display the following event:
  "hello": "world!"

Congratulations! 🎉 You have bridged Cloudflare workers with InfinyOn Cloud, the first set in building data reach event-driven services.

Next steps: