Valid Solvo input

file.txt

// url = 'https://solvo-api.herokuapp.com/api/v1/update'


{
    "meta": {
        "name": "System-1",
        "path": "files/file-1.yml",
        "ready": false,
        "error": ""
    },
    "equations": [
        {
            "text": "x^2 + y^2 = z^2",
            "disabled": false,
            "error": ""
        },
        {
            "text": "2*x*y=z",
            "disabled": false,
            "error": ""
        },
        {
            "text": "y/x=1",
            "disabled": false,
            "error": ""
        }
    ],
    "variable": {}
}

js

// -------------------------------

function postData(url = '', data = {}) {
 // Default options are marked with *
   return fetch(url, {
       method: 'POST', // *GET, POST, PUT, DELETE, etc.
       mode: 'no-cors', // no-cors, *cors, same-origin
       cache: 'no-cache', // *default, no-cache, reload, force-cache, only-if-cached
       credentials: 'same-origin', // include, *same-origin, omit
       headers: {
           'Content-Type': 'application/json',
           // 'Content-Type': 'application/x-www-form-urlencoded',
       },
       redirect: 'follow', // manual, *follow, error
       referrer: 'no-referrer', // no-referrer, *client
       body: JSON.stringify(data), // body data type must match "Content-Type" header
   })
   .then(response => response.json()); // parses JSON response into native JavaScript objects
}

await postData('https://solvo-api.herokuapp.com/api/v1/update ', { equations:[], meta:{}, variable: {} })