Function Node

Type: Function

Compatible with: Flow Graph, Connector Graph

Description:

The Function Node empowers you to execute custom JavaScript (or TypeScript) code on incoming messages. This flexibility allows you to perform complex calculations, data transformations, or decision-making logic directly within your Neutron graph. The function should return an object that will be used as the output message payload for subsequent nodes.

Settings Parameters (Code Editor):

The node provides a code editor where you can write your JavaScript (or TypeScript) function. The function has access to the following objects:

• msg: The incoming message object, which typically contains a payload property and other relevant data.
• env: An object for interacting with environment variables. You can use env.get to retrieve values and env.store to set or update values.

Input:

• msg: The message object on which your function will operate.

Output:

• The object returned by your function, which becomes the payload of the outgoing message.

Example Usage:

// Example function in the Function Node
// Perform custom processing on the input payload
let processedPayload = {
  data: msg.payload.toUpperCase(),
  timestamp: new Date().toISOString(),
};
 
// Accessing and storing environment variables
let myEnvVar = env.get('MY_VAR_ENV');
env.store('MY_VAR_ENV', processedPayload); 
 
return processedPayload;