serverless/docs/providers/azure/guide/functions.md

Read this on the main serverless docs site

Azure - Functions

If you are using Azure Functions as a provider, all functions inside the service are Azure Functions.

Configuration

All of the Azure Functions in your serverless service can be found in serverless.yml under the functions property.

# serverless.yml
service: azfx-node-http

provider:
  name: azure
  location: West US

plugins:
  - serverless-azure-functions

functions:
  hello:
     handler: templates/handler.hello
     events:
       - http: true
         x-azure-settings:
           authLevel : anonymous

The handler property points to the file (default filename: handler.js) and module containing the code you want to run in your function.

// handler.js
exports.handler = function(params) {}

You can add as many functions as you want within this property.

# serverless.yml
...

functions:
  functionOne:
    handler: handler.functionOne
    description: optional description for your Function
  functionTwo:
    handler: handler.functionTwo
  functionThree:
    handler: handler.functionThree