How to Create a Last Result Task in a Process

The Last Result Task in akaBot Center is a utility task that captures and stores the output of the most recently completed task — whether it is a Bot Task, HTTP Task, or Human Task — into a named process variable. This makes it easy to pass results between tasks without manually mapping every output field, which is especially useful in dynamic or data-driven processes where the previous task's output needs to be forwarded downstream with minimal configuration.

The Last Result Task works by reading from the internal process execution context where each task's output is temporarily stored upon completion. By explicitly persisting this output into a named variable, the designer ensures the value remains accessible throughout the rest of the process lifetime, even after many subsequent tasks have executed. Without a Last Result Task, the raw last-result context may be overwritten by the next task's execution.

Last Result Tasks are particularly powerful when used after HTTP Tasks that return complex JSON responses. The task can extract a specific field from the JSON body and assign it to a strongly-typed process variable, making it available for condition expressions in gateways or as input to subsequent bot tasks.

Last Result Task Configuration Panel

Property	Description	Required
Task Name	Display name for this task	Yes
Source	The output source: Last Task Result, Specific Task Output	Yes
Source Task	When Source is "Specific Task Output", select the task	Conditional
Output Path	JSONPath or field name to extract from the result (e.g., $.data.id)	No
Target Variable	The process variable name to store the extracted value	Yes
Data Type	The expected data type of the extracted value	Yes
Default Value	Value to use if the source output is null or missing	No

JSONPath Extraction Examples

Source Output (JSON)	JSONPath Expression	Extracted Value
{"status": "approved", "id": 42}	$.id	42
{"items": [{"name": "A"}, {"name": "B"}]}	$.items[0].name	"A"
{"result": {"code": "OK"}}	$.result.code	"OK"
Plain text response	(leave blank)	Entire response as string

Steps to Add a Last Result Task

1. Open the process in the Process Designer.
2. Drag the Last Result Task element from the Task Palette onto the canvas.
3. Place it immediately after the task whose output you want to capture.
4. Connect the Last Result Task in the flow.
5. Click the Last Result Task node to open its Properties panel.
6. Enter a Task Name (e.g., "Capture API Response ID").
7. Set Source to Last Task Result to capture from the immediately preceding task, or Specific Task Output to target a named earlier task.
8. If applicable, enter the Output Path using JSONPath syntax to extract a specific field.
9. Enter the Target Variable name where the value will be stored.
10. Select the correct Data Type.
11. Optionally, set a Default Value for cases where the source is empty.
12. Click Save.