create-cloudflare-worker
v1.2.1
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Create a Cloudflare worker
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create-cloudflare-worker
A Starter Kit for Building a Cloudflare Worker
Creating an App
To create a new worker with create-cloudflare-worker
, run the following
npm init cloudflare-worker your-worker-name
or, with npx
npx create-cloudflare-worker your-worker-name
Once the installation is done, you can open your project folder:
cd my-app
Building and testing your new worker
To build the worker, run
npm run build
This outputs the worker as dist/main.js
.
To continually build the worker on every change, run
npm run watch
And finally, to execute the integration and unit tests, run
npm test
Running the worker locally
To run the worker locally, run
npm start
This will start the worker on port 4000, and forward all requests to the upstream server at http://localhost:3000
. This will allow you to develop your application in tandem with the worker that will front the application.
Deploying
This project may be used to deploy your newly built worker to cloudflare as follows:
CF_ACCOUNT=acct-id CF_WORKER_NAME=worker-name [email protected] CF_AUTH_KEY=auth-key npm run deploy
However, you may also just copy dist/main.js and paste it into the CF worker dashboard (or even terraform it)
Examples
We will add recipes here
- Building a API service with react-router
- Parsing Cookies
Adding a Key Value Store
This project can also mock an in memory KV Store. This can be done as follows
- Add the kv store (ex: MYSTORE) to the list of global variables of the worker
- When running the worker, start the worker with the
KV_NAMESPACES
as followsKV_NAMESPACES=MYSTORE,OTHER_STORE npm start
- In tests, namespaces can be created as an option to createTestApp as follows:
const app = createTestApp(workerContents, upstreamApp, { kvStores: ["MYSTORE"] })
. The new store can be accessed in tests as follows:await app.stores.MYSTORE.put("key", "value")
.await app.stores.MYSTORE.get("key")
When you are ready to deploy your new worker with a KV:
- run curl to create the worker namespace (this should only be done once)
# If this fails, contact support
curl "https://api.cloudflare.com/client/v4/accounts/$CF_ACCOUNT/workers/namespaces" \
-X POST \
-H "X-Auth-Email: $CF_EMAIL" \
-H "X-Auth-Key: $AUTH_KEY" \
-H "Content-Type: application/json" \
--data '{"title": "your-namespace"}'
# {"result":{"id": "<some-id>","title":"your-namespace"}}
- Bind this namespace in the deploy script in package.json. Find the bindings section in the deploy script, and replace it with something like this
\\\"bindings\\\":[{\\\"name\\\":\\\"MYSTORE\\\",\\\"type\\\":\\\"kv_namespace\\\",\\\"namespace_id\\\":\\\"$MYSTORE_ID\\\"}]
- Finally, run your deploy script with the MYSTORE_ID variable set to the id returned by the curl command.
Contributing
- Fork this Repo first
- Clone your Repo
- Install dependencies by
$ npm install
- Checkout a feature branch
- Feel free to add your features
- Make sure your features are fully tested
- Publish your local branch, Open a pull request
- Enjoy hacking <3
ISC
This work is licensed under the ISC license.