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---
layout: "azurerm"
page_title: "Azure Resource Manager: azurerm_servicebus_topic"
sidebar_current: "docs-azurerm-resource-servicebus-topic"
description: |-
Create a ServiceBus Topic.
---
# azurerm\_servicebus\_topic
Create a ServiceBus Topic.
**Note** Topics can only be created in Namespaces with an SKU or `standard` or
higher.
## Example Usage
```
resource "azurerm_resource_group" "test" {
name = "resourceGroup1"
location = "West US"
}
resource "azurerm_servicebus_namespace" "test" {
name = "acceptanceTestServiceBusNamespace"
location = "West US"
resource_group_name = "${azurerm_resource_group.test.name}"
sku = "standard"
tags {
environment = "Production"
}
}
resource "azurerm_servicebus_topic" "test" {
name = "testTopic"
location = "West US"
resource_group_name = "${azurerm_resource_group.test.name}"
namespace_name = "${azurerm_servicebus_namespace.test.name}"
enable_partitioning = true
}
```
## Argument Reference
The following arguments are supported:
* `name` - (Required) Specifies the name of the ServiceBus Topic resource. Changing this forces a
new resource to be created.
* `namespace_name` - (Required) The name of the ServiceBus Namespace to create
this topic in. Changing this forces a new resource to be created.
* `location` - (Required) Specifies the supported Azure location where the resource exists.
Changing this forces a new resource to be created.
* `resource_group_name` - (Required) The name of the resource group in which to
create the namespace. Changing this forces a new resource to be created.
* `auto_delete_on_idle` - (Optional) The idle interval after which the
Topic is automatically deleted, minimum of 5 minutes. Provided in the [TimeSpan](#timespan-format)
format.
* `default_message_ttl` - (Optional) The TTL of messages sent to this topic if no
TTL value is set on the message itself. Provided in the [TimeSpan](#timespan-format)
format.
* `duplicate_detection_history_time_window` - (Optional) The duration during which
duplicates can be detected. Provided in the [TimeSpan](#timespan-format) format.
* `enable_batched_operations` - (Optional) Boolean flag which controls if server-side
batched operations are enabled. Defaults to false.
* `enable_express` - (Optional) Boolean flag which controls whether Express Entities
are enabled. An express topic holds a message in memory temporarily before writing
it to persistent storage. Defaults to false.
* `enable_filtering_messages_before_publishing` - (Optional) Boolean flag which
controls whether messages should be filtered before publishing. Defaults to
false.
* `enable_partitioning` - (Optional) Boolean flag which controls whether to enable
the topic to be partitioned across multiple message brokers. Defaults to false.
* `max_size_in_megabytes` - (Optional) Integer value which controls the size of
memory allocated for the topic.
* `requires_duplicate_detection` - (Optional) Boolean flag which controls whether
the Topic requires duplicate detection. Defaults to false.
* `support_ordering` - (Optional) Boolean flag which controls whether the Topic
supports ordering. Defaults to false.
### TimeSpan Format
Some arguments for this resource are required in the TimeSpan format which is
used to represent a lengh of time. The supported format is documented [here](https://msdn.microsoft.com/en-us/library/se73z7b9(v=vs.110).aspx#Anchor_2)
## Attributes Reference
The following attributes are exported:
* `id` - The ServiceBus Topic ID.