---
type: docs
title: "AWS SNS binding spec"
linkTitle: "AWS SNS"
description: "Detailed documentation on the AWS SNS binding component"
aliases:
  - "/operations/components/setup-bindings/supported-bindings/sns/"
---

## Component format

To setup AWS SNS binding create a component of type `bindings.aws.sns`. See [this guide]({{< ref "howto-bindings.md#1-create-a-binding" >}}) on how to create and apply a binding configuration.

See [Authenticating to AWS]({{< ref authenticating-aws.md >}}) for information about authentication-related attributes

```yaml
apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
  name: <NAME>
spec:
  type: bindings.aws.sns
  version: v1
  metadata:
  - name: topicArn
    value: "mytopic"
  - name: region
    value: "us-west-2"
  - name: accessKey
    value: "*****************"
  - name: secretKey
    value: "*****************"
  - name: sessionToken
    value: "*****************"
  - name: direction 
    value: "output"
```

{{% alert title="Warning" color="warning" %}}
The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described [here]({{< ref component-secrets.md >}}).
{{% /alert %}}

## Spec metadata fields

| Field              | Required | Binding support |  Details | Example |
|--------------------|:--------:|------------|-----|---------|
| `topicArn` | Y | Output | The SNS topic name | `"arn:::topicarn"` |
| `region`             | Y        | Output |  The specific AWS region | `"us-east-1"`       |
| `accessKey`          | Y        | Output | The AWS Access Key to access this resource                              | `"key"`             |
| `secretKey`          | Y        | Output | The AWS Secret Access Key to access this resource                       | `"secretAccessKey"` |
| `sessionToken`       | N        | Output | The AWS session token to use                                            | `"sessionToken"`    |
| `direction`       | N        | Output | The direction of the binding                                            | `"output"`    |

{{% alert title="Important" color="warning" %}}
When running the Dapr sidecar (daprd) with your application on EKS (AWS Kubernetes), if you're using a node/pod that has already been attached to an IAM policy defining access to AWS resources, you **must not** provide AWS access-key, secret-key, and tokens in the definition of the component spec you're using.  
{{% /alert %}}

## Binding support

This component supports **output binding** with the following operations:

- `create`

## Related links

- [Basic schema for a Dapr component]({{< ref component-schema >}})
- [Bindings building block]({{< ref bindings >}})
- [How-To: Trigger application with input binding]({{< ref howto-triggers.md >}})
- [How-To: Use bindings to interface with external resources]({{< ref howto-bindings.md >}})
- [Bindings API reference]({{< ref bindings_api.md >}})
- [Authenticating to AWS]({{< ref authenticating-aws.md >}})