Input 

Document

• Min: 0

• Max: 1

Mapper

Region, ARN of the topic and the text message that you want to publish.

Output

Document

• Min: 0

• Max: 1

Copy

Published message

Error

Error handling is to have a generic way to handle errors without losing data or failing the Snap execution. You can handle the errors that might arise while running the Pipeline by choosing one of the options from the When errors occur section under the Views tab.

The options available are:

• Stop Pipeline Execution: Stops the current pipeline execution when an error arises.

• Discard Error Data and Continue: Ignores an error completely, discard that record, and continue with the rest of the records.

• Route Error Data to Error View: Routes the data to an error view of the Snap and then decides what to do with the error.

See Error View in Pipeline in examples to understand the Snap error view settings and error output. For more information on the error view and handling error output in a Pipeline, see Error handling in Pipelines.

Label*

Default Value: N/A
Example: DeleteTopic

String

N/A

Specify the name for the Snap. You can modify this to be more specific, especially if you have more than one of the same Snap in your Pipeline.

Region

Default Value: None
Example: us-east-1, us-west-1

String/Expression

N/A

Specify the AWS region where the application is implemented. If the region field is not present, then the region will be evaluated in the following sequence:

• The Topic Arn or Subscription ARN

• The region of the EC2 instance

Topic Arn*

Default Value: N/A
Example: Topic 1

String/Expression

N/A

Specify the Amazon Resource Name (ARN) of the topic.

Subject

Default Value: N/A
Example: 

String/Expression

N/A

Specify the subject line to be included while delivering in the messages.

Message Structure

Default Value: TEXT
Example: JSON

Dropdown list

If the property is set to JSON, then the Customised Messages field set and Message property is enabled. You can send messages to various protocols using the fieldset.

Select one of the following options to provide the structure or type of the message that you want to publish. Available options are:

• JSON

• TEXT

Message

Default Value: N/A
Example: Message to publish

String/Expression

N/A

Specify the message you want to publish.

Customized Messages

Appears when you select JSON in the Message Structure field. You can add any number of messages by clicking the icon on the field set.

Protocol

Default Value: N/A
Example: https

String/Expression

N/A

Specify the internet protocol to connect to Amazon server. Alternatively click the Suggestion icon to fetch a list of attribute names associated with the entity type. Available options are:

• default

• http

• https

• email

• email-json

• SQS

• sms

Message

Default Value: N/A
Example: Message to publish

String/Expression

N/A

Specify the message you want to publish.

Message group ID

Default value: N/A
Example: 5

String/Expression

Displayed when you enable expression for Topic Arn.

Specify a tag that indicates which message group this message belongs to. The field is used and required by FIFO queue. Messages in the same message group are delivered in the order that they are published. For more information refer to FIFO Queue Recommendations - Message Group Id.

Deduplicate ID

Default value: N/A
Example: 2

String/Expression

Displayed when you enable expression for Topic Arn.

Specify the token used for de-duplication of sent messages in FIFO queue. This ID is optional if you enabled the Content-based message deduplication setting for the topic. For more information refer to FIFO Queue Recommendations - Deduplicate Id.

Message attributes

Specify the table of the message attributes. Message attributes are structured metadata for the message to help the consumer identify how to deal with the message without having to read the message body. Each message can have up to 10 attributes. The value type is string.

Attribute Name

Default value: N/A
Example: Number

String/Expression

N/A

Specify the name for the message attribute. By default this field is expression enabled.

Data type

Default value: Number
Example: String

String/Expression/Dropdown list

N/A

Specify the datatype of the message attribute. Available options are:

• Number

• String

• String Array

• Binary

Attribute Value

Default value: N/A
Example: snap.instanceId

String/Expression

N/A

Specify the value for the message attribute. By default this field is expression enabled.

Snap Execution

Default Value: Execute only
Example: Validate & Execute

Dropdown list

N/A

Select one of the three modes in which the Snap executes. Available options are:

• Validate & Execute: Performs limited execution of the Snap, and generates a data preview during Pipeline validation. Subsequently, performs full execution of the Snap (unlimited records) during Pipeline runtime.

• Execute only: Performs full execution of the Snap during Pipeline execution without generating preview data.

• Disabled: Disables the Snap and all Snaps that are downstream from it.

Missing Topic ARN.

 A topic ARN value is not provided.

Specify the topic ARN and retry.

No default entry in JSON message body

The Message field is empty while Message Attribute is set to JSON.

Enter the message in the Message field.

An error occurred when publishing a message to the specific topic in the Amazon SNS.

Failed to store the message content in an S3 object.

Check the input data, formats and retry.