Publish a message to an Amazon SNS topic

Sign in to the Amazon SNS console.
On the navigation panel, choose Topics.
On the Topics page, choose the topic you created earlier and then choose Publish message.

On the Publish message to topic page, do the following:

(Optional) In the Message details section, enter the Subject, for example:
```
Hello from Amazon SNS!
```

In the Message body section, do one of the following:

Choose Identical payload for all delivery protocols and then enter the message, for example:
```
Publishing a message to an Amazon SNS topic.
```

Choose Custom payload for each delivery protocol and then use a JSON object to define the message to send to each protocol, for example:

{
  "default": "Sample fallback message",
  "email": "Sample message for email endpoints",
  "sqs": "Sample message for Amazon SQS endpoints",
  "lambda": "Sample message for AWS Lambda endpoints",
  "http": "Sample message for HTTP endpoints",
  "https": "Sample message for HTTPS endpoints",
  "sms": "Sample message for SMS endpoints",
  "APNS": "{\"aps\":{\"alert\": \"Sample message for iOS endpoints\"} }",
  "APNS_SANDBOX": "{\"aps\":{\"alert\":\"Sample message for iOS development endpoints\"}}",
  "APNS_VOIP": "{\"aps\":{\"alert\":\"Sample message for Apple VoIP endpoints\"}}",
  "APNS_VOIP_SANDBOX": "{\"aps\":{\"alert\": \"Sample message for Apple VoIP development endpoints\"} }",
  "MACOS": "{\"aps\":{\"alert\":\"Sample message for MacOS endpoints\"}}",
  "MACOS_SANDBOX": "{\"aps\":{\"alert\": \"Sample message for MacOS development endpoints\"} }",
  "GCM": "{ \"data\": { \"message\": \"Sample message for Android endpoints\" } }",
  "ADM": "{ \"data\": { \"message\": \"Sample message for FireOS endpoints\" } }",
  "BAIDU": "{\"title\":\"Sample message title\",\"description\":\"Sample message for Baidu endpoints\"}",
  "MPNS": "<?xml version=\"1.0\" encoding=\"utf-8\"?><wp:Notification xmlns:wp=\"WPNotification\"><wp:Tile><wp:Count>ENTER COUNT</wp:Count><wp:Title>Sample message for Windows Phone 7+ endpoints</wp:Title></wp:Tile></wp:Notification>",
  "WNS": "<badge version=\"1\" value=\"42\"/>"
}

In the Message attributes section, add any attributes that you want Amazon SNS to match with the subscription attribute FilterPolicy to decide whether the subscribed endpoint is interested in the published message.
1. Select an attribute Type, for example String.Array.
2. Enter a Name for the attribute, for example customer_interests.
3. Enter a Value for the attribute, for example ["soccer", "rugby", "hockey"].
If the attribute type is String, String.Array, or Number, Amazon SNS evaluates the message attribute against a subscription’s filter policy (if present) before sending the message to the subscription.
Choose Publish message.
The message is published to the topic and the MyTopic page is displayed. The topic’s Name, ARN, (optional) Display name, and Topic owner‘s AWS account ID are displayed in the Details section.

In your email client, check the email address that you specified earlier and read the email from Amazon SNS.

Publish a message to an Amazon SNS topic

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