FloodGuardInstall

Overview

This node, named "FloodGuard," acts as a protective filter to control message floods within workflows. It is designed to help maintain workflow efficiency by preventing excessive or rapid message sending that could overwhelm systems or violate rate limits. Typical use cases include messaging platforms, notification systems, or any scenario where controlling the flow of outgoing messages is critical to avoid spamming or overloading downstream services.

For example, in a customer support automation workflow, this node can be used to ensure that no single sender sends too many messages in a short period, thus protecting the system from abuse or accidental flooding.

Properties

Output

The node outputs an array of JSON objects, each containing a stdout field. This field holds the trimmed standard output string returned by an external flood control client process. This output likely contains information about whether the message passed the flood control check or details about the flood status.

No binary data output is produced by this node.

Example output structure:

[
  {
    "json": {
      "stdout": "some response text from flood control client"
    }
  }
]

Dependencies

• This node depends on an external executable located at /opt/floodguard/bin/flood_client. It calls this binary with parameters derived from the input properties.
• The environment where this node runs must have this executable installed and properly configured.
• No direct API keys or external web services are required, but proper system-level configuration is necessary to allow execution of the flood control client.

Troubleshooting

• Common issues:

  • The external flood control client executable may not be found or accessible, causing execution failure.
  • Incorrect permissions on the executable can prevent it from running.
  • Improper or missing input parameters might cause unexpected behavior or errors from the flood control client.

• Error messages:

  • "FloodGuard internal error: <error message>": Indicates the flood control client returned an error message on its standard error stream. Check the client logs or system configuration.
  • "FloodGuard failed to execute. Please check system configuration.": Indicates the node was unable to run the external client, possibly due to missing executable, permission issues, or other system-level problems.

• Resolution tips:

  • Ensure the flood control client binary exists at the specified path and is executable.
  • Verify that all required input properties (SenderId and Message) are provided.
  • Review system logs or the flood control client's own logging for more detailed error information.

Links and References

• No external links are embedded in the code. For further information, consult documentation related to the external flood control client executable or system administration guides for managing executable permissions and environment setup.