This example below can work on all json objects i have tested it on checkout my github repo: https://github.com/nickjohngray/blockout/blob/master/src/Tree/Tree.tsx the html generated is the same as https://www.w3schools.com/howto/howto_js_treeview.asp

class Tree extends React.Component {

   

    processObject = (object) =>
        Object.keys(object).map((key, reactKey) => {
            return (
                <li key={reactKey + key}>
                    {this.buildNode(key)}
                    <ul className="nested">
                        {this.isPrimative(object[key]) ? this.buildLeaf(object[key]) :
                            this.isArray(object[key]) ? this.loopArray(object[key]) : this.processObject(object[key])}
                    </ul>
                </li>
            )
        })

    loopArray = (array) =>
        array.map((value, key) =>
            <div key={key + value}>
                {this.isPrimative(value) ? this.buildLeaf(value) :
                    this.isArray(value) ? this.loopArray(value) : this.processObject(value)}
            </div>
        )

    isArray = (value) =>
        Array.isArray(value)

    isPrimative = (value) => {
        return typeof (value) === 'string'
            || typeof (value) === 'number'
            || typeof (value) === 'boolean'
    }

    buildNode = (key: string) =>
        <span className="node"
              onClick={
                  (e) => {
                      this.toggle(e)
                  }}>
             {key}
            </span>

    buildLeaf = (value: string) =>
        <li className="leaf"
            onClick={
                (e) => {

                }}>
            {value}
        </li>

    toggle = (event) => {
        event.target.parentElement.querySelector(".nested").classList.toggle("active");
        event.target.classList.toggle("node-down");
    }

    render = () => <>
        <ul id="myUL">
            {this.processObject(json)}
        </ul>
    </>
}

export default Tree;

this is the css for it, copied from wc3 schools

/* Remove default bullets */
ul, #myUL {
    list-style-type: none;
}

body {
    background: red;
}


/* Remove margins and padding from the parent ul */
#myUL {
    margin: 0;
    padding: 0;
}

/* Style the caret/arrow */
.caret {
    cursor: pointer;
    user-select: none; /* Prevent text selection */
    background: red;
}

/* Create the caret/arrow with a unicode, and style it */
.caret::before {
    content: "\25B6";
    color: black;
    display: inline-block;
    margin-right: 6px;
}

/* Rotate the caret/arrow icon when clicked on (using JavaScript) */
.caret-down::before {
    transform: rotate(90deg);
}

/* Hide the nested list */
.nested {
    display: none;
}

/* Show the nested list when the user clicks on the caret/arrow (with JavaScript) */
.active {
    display: block;
}