Converts JSON data into MVC .Net consumable fields and synchronously posts to a set path.

postToDotNet.js

// Performs a synchronous post that changes json to .Net consumable post fields
// this will send the page to the path specified as if it was a normal form post
function postToDotNet(path, params) {
    var form = document.createElement("form"),
        createFields = function (data, fieldPrefix) {
            if (fieldPrefix === undefined) fieldPrefix = '';
            if (Array.isArray(data)) {
                for (var i = 0; i < data.length; i++) {
                    createFields(data[i], fieldPrefix + '[' + i + ']');
                }
            } else if (isObject(data) && hasFields(data)) {
                for (var key in data) {
                    createFields(data[key], (fieldPrefix.length ? fieldPrefix + '.' : fieldPrefix) + key);
                }
            } else {
                setField(fieldPrefix, data);
            }
        },
        setField = function (name, value) {
            var hiddenField = document.createElement("input");
            hiddenField.setAttribute("type", "hidden");
            hiddenField.setAttribute("name", name);
            hiddenField.setAttribute("value", value);

            form.appendChild(hiddenField);
        };

    form.setAttribute("method", "post");
    form.setAttribute("action", path);
    createFields(params);

    document.body.appendChild(form);
    form.submit();
}

function hasFields(o) {
    return Object.keys(o).length > 0;
}

function isObject(o) {
    return o === Object(o);
}