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Snaps are the building blocks of a Pipeline. Each Snap performs a single function, such as read, write, or update data. You can view the Snaps available to you (or your account) in the Snap Catalog, on the left-hand side of the SnapLogic Designer. You can drag a Snap from the Snap Catalog on to the Canvas to use it in a Pipeline.
By default, the Snap Catalog contains a set of core Snaps available to all users. You can add premium or custom Snaps by installing them in Manager on the project-level Snap Packs page.
Once a Snap is on the Canvas, click on the Snap to open the Snap popup. The Snap popup enables you to configure the various settings associated with the Snap. To hide the popup, click on the Snap again, or click the . iconMost Snap popups have some–or all–of the tabs listed in the table below. For illustration, we have taken the File Reader Snap as an example.
Snap popups typically display the following icons:
Configuring Snap Views
This section helps you understand how to configure Snap views. Snap views enable you to configure the number of input and output documents that the Snap can support. You can also configure the Snap behavior in case of any error during the Snap execution. Every Snap offers the following views:
Error: Enables you to configure the error view of the Snap
Input: Enables you to specify the number of input views you want the Snap to have
Output: Enables you to specify the number of output views you want the Snap to have
Configuring Error Views
You can configure error views for every Snap you use in a Pipeline. Error views enable you to decide how the Snap must behave in case of an error during the Snap execution.
By default, the error view of all Snaps is set to Stop pipeline execution. To configure error views for a Snap, click the When errors occur, field and select one of the following options:
Discard error data and continue: Discards any error data and continues with Pipeline execution.
Route error data to error view: Routes all error data to the error view of the Pipeline execution statistics.
Stop pipeline execution: Stops Pipeline execution at the occurrence of an error.
Configuring Input and Output Views
You can configure input and output views for every Snap that you use in a Pipeline.
To configure input and output views for a Snap:
Go to Input or Output and click +.
The selected view is added under Name.
Update the name that you want to use for the view.