TypeError: Converting circular structure to JSON

[zhaoyiming0803]

Describe the bug

• axios version: 1.6.8
• enviroment: node.js
• node version: v16.14.2
• npm version: 8.5.0
• system: mac

Code snippet

const res = await axios.post('https://www.baidu.com', {
      a: 1,
      b: 2
    }, {
      headers: {
        'Content-Type': 'application/json'
      }
    })

### Expected behavior

solve circular error

[RonDaha]

I also experience the same issue, although in my case this issue occuer only when the data object have a property with the key query and the value is a string

For example

This produce the error:

axios.request({
        method: "POST",
        URL: "some-url",
        headers: {  'Content-Type': 'application/json' },
        data: { query: "any value" },
    })

This does not produce the error:

axios.request({
        method: "POST",
        url: "some-url",
        headers: {  'Content-Type': 'application/json' },
        data: { notQuery: "any value" },
    })

The error:
AppError [TypeError]: Converting circular structure to JSON --> starting at object with constructor 'ClientRequest' | property 'socket' -> object with constructor 'TLSSocket' --- property '_httpMessage' closes the circle

• axios version: 1.6.8
• enviroment: node.js
• node version: v18.17.1
• npm version: 9.6.7
• system: macOS 14.4 (23E214)

[zhaoyiming0803]

I also experience the same issue, although in my case this issue occuer only when the data object have a property with the key query and the value is a string

For example

This produce the error:

axios.request({
        method: "POST",
        URL: "some-url",
        headers: {  'Content-Type': 'application/json' },
        data: { query: "any value" },
    })

This does not produce the error:

axios.request({
        method: "POST",
        url: "some-url",
        headers: {  'Content-Type': 'application/json' },
        data: { notQuery: "any value" },
    })

The error: AppError [TypeError]: Converting circular structure to JSON --> starting at object with constructor 'ClientRequest' | property 'socket' -> object with constructor 'TLSSocket' --- property '_httpMessage' closes the circle

• axios version: 1.6.8
• enviroment: node.js
• node version: v18.17.1
• npm version: 9.6.7
• system: macOS 14.4 (23E214)

I use Axios in Node.js enviroment (Koa.js framework):

const res = await Axios.request()

// error
ctx.body = {
   data: res
}

// no error
ctx.body = {
   data: res.data
}

[Milad-Abooali]

I have the same problem. As I researched this, I found some helpful solutions here:
how-to-fix-typeerror-converting-circular-structure-to-json-in-js

But it must be handled internally when 'Accept': 'application/json' is selected.