### [Read this on the main serverless docs site](https://www.serverless.com/framework/docs/providers/azure/events/servicebus) # Service Bus Trigger Azure Functions Service Bus trigger lets you listen on Azure Service Bus. Full documentation can be found on [azure.com](https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-service-bus). ## Service Bus Events ### Service Bus Queue Trigger This setup specifies that the `hello` function should be run when a new Service Bus Queue item appears on the queue "hello". Here's an example: ```yml # serverless.yml functions: example: handler: handler.hello events: - serviceBus: name: item #, default - "mySbMsg", specifies which name is available on `context.bindings` queueName: hello #, specifies the queue name to listen on accessRights: manage #, specifies the permission to use when listening on the queue (manage will create queue if not exists) connection: ServiceBusConnection #, environment variable which contains Service Bus Namespace Connection String ``` ```javascript // handler.js 'use strict'; module.exports.hello = function (context, item) { context.log('Received item: ${item}'); context.done(); }; ``` ### Service Bus Topic Trigger This setup specifies that the `hello` function should be run when a new Service Bus Topic item appears on the subscription "hello". Here's an example: ```yml # serverless.yml functions: example: handler: handler.hello events: - serviceBus: name: item #, default - "mySbMsg", specifies which name it's available on `context.bindings` topicName: 'hello' #, topic to listen on subscriptionName: 'hello' #, subscription to listen on connection: ServiceBusConnection #, environment variable which contains Service Bus Namespace Connection String ``` ```javascript // handler.js 'use strict'; module.exports.hello = function (context, item) { context.log('Received item: ${item}'); context.done(); }; ```