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Configure Variable Bar

Properties can be added to the Variable Bar by clicking the + icon, existing Properties can be edited or removed by clicking on the Name of an existing Property.

Property Name

You can provide any name you'd like for the Property or you can choose a special Property by clicking the v icon next to the Property Name.

See Special Properties below for more information about special properties.

Property Flow Direction

Flow Direction is specified by checking or unchecking the checkboxes to the left and right of the Property Name. From the perspective of a Workflow, an Input to the Workflow is a Node Output Property while an Output from a Workflow is a Node Input Property.

Property Type

The Property type determines the UI control that is displayed to edit the Property value.

When Property Type is set to File, an additional UI is displayed to allow a file extension to be specified. This is the file extension that will be used when the Property is served as a download.

Logging

By default, Property values will be marked as Logged. If you wish to exclude a Property from logging, choose Redacted. See Property Redaction for more information.

Property Type

Specifies the behavior of a Property.

  • Default Property indicates that the Property should present in the Run Now Pane and be addressable for invoke via API
  • Configuration Property indicates that the value of the Property should be managed within the Site rather than in the Workflow. When selected, an additional UI will display allowing a name for the Configuration Property). Any Workflow in the Site using this name will receive the same value for the Property. When a Workflow contains a Configuration Property, an additional Configure option will be shown on the Workflow Landing Pane screen allowing persistent values for these Properties to be managed per Environment
  • Hidden Property indicates that the Property should not present in the Run Now Pane.

Special Properties

The following special Properties are available from the Variable Bar.

Special Input Variables

  • FgSiteId provides the identity of the Site in which the Workflow resides. This is the same identity shown in the Site Details pane.

  • FgSiteName provides the name of the Site in which the Workflow resides.

  • FgWorkflowId provides the identity of the executing workflow. This is the same identity shown in the Workflow Design Pane.

  • FgWorkflowName provides the name of the currently executing top-level Workflow.

  • FgWorkflowInstanceId is a unique identifier that represents the current task instance.

  • FgUsername contains the username of the user who executed the Workflow. When a Workflow is executed from the Console, this is the identity of the user who is logged in. When executed via API call, this is the identity of the API Key.

  • FgEnvironment is the name of the Environment under which the current Workflow instance is executing. For example Production or Test.

  • FgAction contains a static list of actions that are available in the Run Now screen. When present, the current action will be shown on the Run button itself and users will be able to select other actions

REST API Input Variables

  • FgRequestBody contains the raw HTTP POST payload when the Workflow is invoked via API. Where the request Content-Type header is set to application/json, application/x-www-form-urlencoded or starts with text/, FgRequestBody will be a UTF8 encoded string representation of the request. For all other Content Types, FgRequestBody will be a byte array.
    It's easiest to work with data in JSON or XML form in Flowgear. Use the sample workflow Sample Workflow to see how to convert form data to a JSON document.

  • FgRequestHeaders contains a list of all HTTP Request Headers that were sent when the Workflow was invoked via API.

  • FgRequestContentType contains the HTTP Content-Type Header when the Workflow is invoked via API. This Property does not need to be used if FgRequestHeaders is used.

REST API Output Variables

  • FgResponseCode enables a Workflow to assign an HTTP response code. If not used, 200 will be set unless an unhandled error occurs in which case 500 will be set. To override, add a custom error handler - see Error Handling.

-FgResponseBody provides a mechanism for the Workflow to emit a Raw HTTP Response payload. This will typically be a JSON or XML document but may be any type of data. Be sure to set the appropriate Content-Type header via FgResponseHeaders

  • FgResponseHeaders provides a mechanism for emitting custom HTTP Response Headers. Headers should be supplied exactly as they should appear in the HTTP Response. Namely, header: value pairs, one per line.

  • FgResponseContentType specifies the HTTP Response Content-Type Header. Content-Type can also be set via FgResponseHeaders.

  • FgResponseContentDisposition eEnables the Workflow to override the Content-Disposition HTTP Response Header. If omitted, a Content-Disposition Header of the form attachment;filename=Result.{file-extension} will be generated by Flowgear when the Variable Bar field FgResponseBody has a Type of File specified. Content-Disposition can also be set via FgResponseHeaders.

http://flowgear.me/s/VkcFwMf provides an example of how to use FgResponseBody and FgResponseContentType.