I’m trying to make a request using ajax to my backend, but it always returns a 404 error, but my route exists.

Ajax:

$(document).ready(function () {
    $('#addFriendForm').on('submit', function (e) {
        e.preventDefault();
        const friendName = $('#friendName').val();
        if (friendName === '') {
            $('#error-message').text('Usuário não encontrado.');
        } else {
            $('#error-message').text('');


            // Send AJAX request to add friend
            $.ajax({
                url: '/chats/addfriend',
                type: "post",
                method: 'POST',
                data: { friendName: friendName },
                success: function (data) {
                    if (data.success) {
                        const avatarUrl = `/path/to/avatars/${friendName}.png`; // Update this path as needed
                        $('#friendsList').append(`
                            <li class="list-group-item">
                                <a href="#" class="d-flex align-items-center friend-item" data-friend-name="${friendName}">
                                    <img src="${avatarUrl}" alt="${friendName}" class="friend-avatar me-2">
                                    ${friendName}
                                </a>
                            </li>
                        `);
                        $('#friendName').val('');
                    } else {
                        $('#error-message').text(data.error);
                    }
                },
                error: function (jqXHR, textStatus, errorThrown) {
                    console.log('Erro AJAX:', textStatus, errorThrown);
                    $('#error-message').text('Erro ao adicionar amigo. Tente novamente.');
                }
            });
        }
    });
});

Console:

POST http://localhost:3000/chats/addfriend 404 (Not Found)

My route:

router.post('/addfriend', async (req, res) => {
    const { friendName } = req.body;

    try {
     //some shit right here

});

Apparently everything is correct with my request, but it doesn’t work, does anyone have any idea why?