Export jsonfile from symfony-CodePudding

I try to export a json file from my controller by ajax, but nothing happens. Anyone can say me where i failed ?

Here my ajax :

$.ajax({
        url: '{{ path('export_index', {'type': 'json'}) }}',
        type: 'POST',
        data: {data: data}
    }).done(function() {

    });

And here my route controller :

public function export(Request $request):Response {
            header('Content-Type: application/json');
            header('Content-Disposition: attachment; filename=data.json');
            header('Expires: 0'); //No caching allowed
            header('Cache-Control: must-revalidate');
            header('Content-Length: ' . strlen($mydata));
            file_put_contents('php://output', $mydata);
            return new Response();
}

CodePudding user response：

Use proper syntax $.ajax

const base_url = 'myurl/';

$.ajax({
    type: "GET",
    // url: "https://jsonplaceholder.typicode.com/posts",
    url: base_url "export_index?type=excel",
    contentType: "application/json",
    dataType: "json",
    //data: JSON.stringify({data: data}),
    success: function(response) {
        console.log(response);
    },
    error: function(response) {
        console.log(response);
    },
    done: function() {
        console.log("done");
    }
});

const base_url = 'myurl/';

$.ajax({
    type: "get",
    url: "https://jsonplaceholder.typicode.com/posts",
    //url: base_url "export_index?type=excel",
    contentType: "application/json",
    dataType: "json",
    //data: JSON.stringify({data: data}),
    success: function(response) {
        console.log(response);
    },
    error: function(response) {
        console.log(response);
    },
    done: function() {
        console.log("done");
    }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>