Constant

Overview

You can use this Snap to inject a block of text, possibly including pipeline parameters, expression language, and writes out binary data.

Snap Type

Constant Snap is a READ-type Snap that reads a block of text and writes out binary data.

Prerequisites

None.

Support for Ultra Pipelines

Works in Ultra Pipelines

Limitations and Known Issues

None.

Snap Views

Type

Format

Number of Views

Examples of Upstream and Downstream Snaps

Description

Type

Format

Number of Views

Examples of Upstream and Downstream Snaps

Description

Input 

Document

Binary

Binary or Document

  • Min: 0

  • Max: 1

  • Binary to Document

  • File Writer

  • JSON Parser

 

Output

Document

Binary

Binary or Document

  • Min:

  • Max:

  • Binary to Document

  • File Writer

  • JSON Parser

 

Error

Error handling is a generic way to handle errors without losing data or failing the Snap execution. You can handle the errors that the Snap might encounter while running the Pipeline by choosing one of the following options from the When errors occur list under the Views tab. The available options are:

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

  • Discard Error Data and Continue: Ignores the error, discards that record, and continues with the rest of the records.

  • Route Error Data to Error View: Routes the error data to an error view without stopping the Snap execution.

Learn more about Error handling in Pipelines.

Snap Settings

  • Asterisk (*): Indicates a mandatory field.

  • Suggestion icon (): Indicates a list that is dynamically populated based on the configuration.

  • Expression icon (): Indicates whether the value is an expression (if enabled) or a static value (if disabled). Learn more about Using Expressions in SnapLogic.

  • Add icon (): Indicates that you can add fields in the fieldset.

  • Remove icon (): Indicates that you can remove fields from the fieldset.

 

Field Name

Field Type

Description

Field Name

Field Type

Description

Label*

Default ValueConstant
ExampleConstant1

String

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.

 

Content*

Default Value[None]
Example: pipe.label.toUpperCase()

String/Expression

Specify the text that may contain expressions including pipeline parameters. For example”

  • Some static content

  • 'Some static content with expression'.toUpperCase()

  • 'Some static content including pipeline' + _parameter

Snap Execution

Default Value
Example: Validate & Execute

Dropdown list

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.

Snap Pack History