Echo

Action ID: echo

Description

Get back whatever your input is. This simple utility node returns the input data unchanged, useful for testing and data flow verification.

Input Parameters

Name	Type	Required	Default	Description
data	string	✓	-	The data to echo

View JSON Schema

{
  "description": "Echo node input.",
  "properties": {
    "data": {
      "title": "Data",
      "type": "string",
      "description": "The data to echo"
    }
  },
  "required": [
    "data"
  ],
  "title": "EchoNodeInput",
  "type": "object"
}

Output Parameters

Name	Type	Description
data	string	Data of the echo

View JSON Schema

{
  "description": "Echo node output.",
  "properties": {
    "data": {
      "title": "Data",
      "type": "string",
      "description": "Data of the echo"
    }
  },
  "required": [
    "data"
  ],
  "title": "EchoNodeOutput",
  "type": "object"
}

How It Works

This node receives the input data and returns it unchanged. There is no processing, transformation, or modification of any kind. Whatever you send in is what you get back. This makes it a perfect testing and debugging tool for verifying data flow through your workflow.

Usage Examples

Example 1: Echo a Simple String

Input:

data: "Hello, World!"

Output:

data: "Hello, World!"

Example 2: Echo JSON Data

Input:

data: "{\"user\": \"john\", \"age\": 30}"

Output:

data: "{\"user\": \"john\", \"age\": 30}"

Example 3: Echo Error Messages for Debugging

Input:

data: "ERROR: Failed to process request"

Output:

data: "ERROR: Failed to process request"

Common Use Cases

• Data Flow Testing: Verify that data is correctly passed between nodes in your workflow

• Debugging Intermediate Values: Echo intermediate data at different workflow stages to debug issues

• Conditional Logging: Use echo before conditional nodes to log values that affect branching logic

• Data Validation: Confirm the exact format and content of data before it's processed by other nodes

• Error Tracking: Echo error messages or status codes to track execution flow during troubleshooting

• Workflow Documentation: Echo key values to create a visible record of data passing through your workflow

Error Handling

Error Type	Cause	Solution
Missing Input	No data provided to the echo node	Ensure the input parameter is connected to a previous node's output
Data Serialization	Very large strings may be truncated in logs	Use a specialized node for handling very large data payloads
Null Input	Input contains null or undefined value	Check if the previous node is returning valid output
Encoding Issue	Special characters may not display correctly	Ensure your input data uses UTF-8 encoding
Type Mismatch	Input expects string but receives other type	Convert input to string format before passing to echo node

Notes

• Testing: Use this node to test workflow data flow and verify that data is being passed correctly between nodes.

• Debugging: Useful for debugging workflows by echoing intermediate data at different stages.

• No Transformation: This node performs no transformation on the input—it returns exactly what it receives.

• Performance: Echo nodes have minimal overhead and don't affect workflow performance.

• Log Visibility: Enable execution logs to see echoed values in the workflow execution history.