In ZeroGraph, the node tasks are created by inheriting the Node class implementation. Here are the steps to create a simple greeting node:
- Defining Node Classes::
- rewrite
prepmethod prepares the input data (e.g., getting a name from a shared object). - exist
execWrite core logic (e.g., generating greetings) in the - pass (a bill or inspection etc)
postStore the results to a shared object.
class GreetingNode extends Node { prep(shared: any): string { return shared.name || 'World'; } exec(name: string): string { return `Hello, ${name}!`; } post(shared: any, execRes: string): void { shared.greeting = execRes; } } - rewrite
- workflow::
- establish
Flowinstance and pass in the node, run it and output the result:const flow = new Flow(new GreetingNode()); const shared = { name: 'TypeScript' }; flow.run(shared); console.log(shared.greeting); // 输出: Hello, TypeScript!
- establish
This answer comes from the articleZeroGraph: a lightweight AI agent programming frameworkThe
May not be reproduced without permission:AI productivity tools " How to implement a simple node task in ZeroGraph?
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