TypeScript libraries for Azure Functions

:construction: This library is still in alpha and not supported by the Azure Functions team for any use. :construction:

These are some helper libraries for folks trying to use TypeScript with Azure Functions

npm install --save @mattmazzola/azure-functions-typescript

import { IHttpContext, IFunctionRequest, HttpStatusCodes } from 'azure-functions-typescript'

export function index(context: IHttpContext, req: IFunctionRequest) {
    if(req.method == "GET")
    context.res.status = HttpStatusCodes.OK;
    context.done(null, {});
}

You can use the entryPoint property in your function.json to specify the name of the function, if you have more than one export.

"entryPoint": "index", 

Development patterns

Because the Azure Functions portal doesn't support TypeScript yet, you have to manage the compilation yourself.

If you develop locally, you can run your local host (see azurefunctions CLI), which will look for js files, and also tsc -w, which will look for ts files. Be sure you have sourcemaps turned on if you want nice debugging experiences.

If you develop remotely, you can create a PowerShell function which will run npm scripts for you, but tsc -w doesn't work very reliably due to the transient nature of the compute.

Contributing

File issues on GitHub with description/code samples.

You're also welcome to send a PR after following the instructions below. If it's a large change, please open an issue to discuss first.

Settings up development environment

1. Use node version 5.9.1

2. Clone repo:

   git clone https://github.com/christopheranderson/azure-functions-typescript.git cd azure-functions-typescript

3. Install dependences - npm install

Test

1. Navigate to ./samples
2. Test - npm test

If you see no errors, you're fine to send a PR.

License

MIT