Race Inputs Block

​

Overview

The Race Inputs Block is used to handle multiple inputs and output the value of the first input to finish, force-cancelling the other inputs. This block is particularly useful when you have multiple operations that can potentially fulfill the same requirement, and you want to use the result of the operation that finishes first.

​

Key Features

• Dynamically creates input ports based on connections
• Outputs the first completed input value
• Cancels remaining inputs after first completion
• Hidden by default in the block menu
• Belongs to the Logic group

​

Inputs

​

Outputs

​

Editor Settings

​

Example: Race two Chats

1. Create a new flow and add two Chat Blocks.
2. Add a Prompt Block with a quick-to-answer prompt like “What is your favorite color?” Connect it to the first Chat Block’s Prompt input.
3. Add another Prompt Block with a longer prompt like “Describe in detail the story of Hamlet.” Connect it to the second Chat Block’s Prompt input.
4. Connect both Chat Block outputs to a Race Inputs block.
5. Run the flow. The first Chat will finish quickly, and the Race Inputs block will output its response. The second Chat Block gets canceled.

​

Error Handling

The Race Inputs Block will not error if none of the inputs finish. Instead, the Result output will be control-flow-excluded. If all inputs are control-flow-excluded, the output will also be control-flow-excluded.

​

Technical Details

• Input ports are dynamically created based on the highest numbered connected input port plus one
• Input ports are named “input1”, “input2”, etc.
• The output port is named “result”

​

FAQ

​

See Also

• HTTP Call Block
• If Block
• Match Block
• Coalesce Block