Is there support for registering custom methods that can be called in function node or other nodes?

[chengguotao]

Dear development team：
Do I currently or in the future support custom method calls through registration, like other rule engines or scripting languages, because I want to use this way, to implement complex business logic, such as using transactions to call databases or other services。
Looking forward to your reply！！

[ivanmiletic]

Hi @chengguotao ,

I suppose you are talking about BRE, not BRMS.

You are able to register custom methods, it is not yet documented but you can create a customNode that can call your custom logic as a callback method. It is available in all languages.

For Editor you can see an example here: https://github.com/gorules/jdm-editor/blob/master/packages/jdm-editor/src/components/decision-graph/dg.stories.tsx
Engine Example (NodeJS):

const engine = new ZenEngine({ customHandler: async (request: ZenEngineHandlerRequest) => {
  return {};
} })

Best regards,
Ivan

[chengguotao]

I'm trying to register rust's method in BRE and call it in the funcation declaration in BRMS

[chengguotao]

I know the answer：#124 (reply in thread)