由于循环 JSON 错误，Azure 持久功能无法返回 Object

Question

Written in JavaScript I have an Activity function that I would like to initialize and return an Object to the Orchestrator function. The Object is initialized but cannot be return because of "Exception: TypeError: Converting circular structure to JSON". Is there anyway to return an Object back to the

Answer 1

Error message => Exception: TypeError: Converting circular structure to JSON

from your activity function you are returning something like this =>

var a = {};
a.b = a;

When activity function returns object back to it Orchestrator, internally it makes a json and in the Orchestrator it parses the json.

JSON.stringify can not convert structures like this.

Meaning activity functions can not return circular structure object.

You need to create a non circular object from the circular object and return it.