Using Callbacks to wait for ajax request

I've been attempting to incorporate callbacks to handle Ajax requests in my Laravel code, but I'm encountering some issues. Could someone please explain the concept of callbacks and assist me in integrating them successfully?

function sendImageToController(callback){
    $.ajaxSetup({
        headers: { 'X-CSRF-Token' : $('meta[name="csrf-token"]').attr('content') } 
    });
    
    $.ajax({
        url: "{{route('HeatMap.moveToStorage')}}",
        data: {
            "imgUrl": imgUrl,
            "targetHeatMap": myMap
        },
        type:'post',
        success:function(response){
            if(!window.location.hash) {
                // alert('Please Wait Loading');
                // window.location = window.location + '#loaded';
                // window.location.reload();
            }
            console.log("correct");
            console.log(response);
        },
        error:function(e){
            console.log(e);
        },
    });               
}

Answer №1

To properly handle the response in both success and error scenarios, make sure to call the callback function within each function block.

success:function(response){
    callback(null, response);
}error:function(e){
    callback(e, null);
}

This way, the callback function will be invoked with the error as the first argument and the result as the second argument.

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