What is the reason for sending a JSON string in an HTTP POST request instead of a JavaScript object in AngularJS

When sending data via a post request in AngularJS, the code may look like this:

$http({
  method: 'POST', 
  url: url, 
  data: inputParams,
  headers: headers
})
.then(function succes(response) {
    successCallBack(response.data);
}

Here is how the data appears in the browser:

https://i.sstatic.net/No2id.jpg

A similar scenario with jQuery results in this:

https://i.sstatic.net/QzOio.jpg

It seems that when using AngularJS, the data is sent as a JSON map and on the backend server it cannot be read from the request body.

There is a thread related to this issue on Stack Overflow: how to get json string from angular $http post request

Despite finding some information there, I still can't resolve my problem. Can someone guide me on what I might be missing?

javascriptangularjsjson

Answer №1

Instead of sending the request from jQuery as a JavaScript object, it is actually sent as an encoded form resembling a query string. The developer tools will interpret and display it as an object.

The representation might look like this:

appId=passThrough&serviceID=OFFOFF&APIVersion=1.0...

This format aligns with traditional HTML forms.

However, handling nested objects in this manner can be challenging. For example:

var requestData = {
    planet: 'Earth',
    moons: [
        {
            name: 'luna'
        }
    ]
}

Encoding an object like this into a form querystring poses challenges. This is why modern Http Client implementations prefer using JSON by default.

If necessary, you can still utilize form querystring encoding as discussed here.

Answer №2

consider implementing the following code snippet

$http({
      method: 'POST', 
      url: serverUrl, 
      data: {
           body : requestParams
      },
      headers: customHeaders
    })
    .then(function handleResponse(response) {
        processResponseData(response.data);
    }

on the server side, utilize req.body.body to manipulate your requestParams accordingly

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