Start Node belongs to Basic Node, used to identify the startup of a workflow and serves as the entry of the entire workflow.
Directions
System Variable
System variables are global variables within the workflow and can be referenced at any node of the workflow, which cannot be changed by default. They include this round's conversation content, the rewrite result of this round in multi-round dialogue, dialogue history, current time, and request ID.
API Parameter
It means when calling the Tencent Cloud Agent Development Platform (Tencent Cloud ADP) API, you can input workflow variables through the custom_variables field (for details on this parameter usage, refer to: Dialog API Documentation (HTTP SSE), Dialog API Documentation (WebSocket)) and reference this variable in the workflow to execute subsequent business logic.
Custom addition of parameters is supported. Enter "Manage" to create API parameters and fill in default values.
Usage scenario:
In the "travel reimbursement" scenario, you can pass the userID (assuming this field represents the employee ID) into the workflow via the custom_variables field when calling the Tencent Cloud ADP API. Configure the userID field in the API parameters of the start node, ensuring the field name and data types remain consistent with those passed in the API. You can directly reference this variable in subsequent workflow nodes.
During workflow execution, the system will automatically parse and use the userID field in custom_variables to run subsequent workflow nodes.
Input variables
This variable represents the input variables required by the Tencent Cloud ADP system when running the workflow, supporting user customization. It is mainly used for circulation between workflows (for example, variables in the main workflow are transmitted to a sub-workflow, at this point the start node of the sub-workflow needs to receive the input variables).
Configuration
Description
Variable Name
Variable name
Default value
Initial default value.
Description
Variable description to help the model understand its meaning.
Type
The data type of the variable supports string, int, float, bool, object, and array types including array<string>, array<int>, array<float>, array<bool>, array<object>, array<file>, array<document>, array<image>, array<audio>, and array<video>. Format support includes common format file, text format document, image format image, audio format audio, and video format video. Among them, the document format variable only supports document link, not the source file.
Required
Whether the variable is required or not, this variable must be input when starting the process.
Application Example
The parent workflow "Social Media Analytics Level 1" needs to call the sub-workflow "Social Media Analytics Levels 2-3". The start node of the sub-workflow is set to accept internal input content or input variables from an input file.
Sub-workflow end node settings
The workflow node of the parent workflow imports the input variables required by the sub-workflow by entering or referring to the preceding node.
The "Secondary and tertiary label" workflow invoked by the parent workflow has completed. Output variables can be passed for the parent workflow to use.
During operation, the "firstLabel" from the parent workflow "Social Media Analytics Level 1" and user input are used as input for the sub-workflow "Secondary and tertiary label". During operation, the parent workflow "Social Media Analytics Level 1" can use the output from the sub-workflow "Secondary and tertiary label".
FAQs
What is the difference between API parameters and input variables?
API parameters are variables imported from the external system into Tencent Cloud ADP, while input variables are those circulated internally within the platform.
