Mongoose optional search query parameters?

Question

I have a following situation. I need to build a mongoose query, based on certain arguments if present.

I.e. if object like this is passed

{
    playe         


        

Answer 1

In case someone encounters same question, here's how I solved it:

var query = {
    player: 'player'
};

Entry.find({
    player: query.player,
    action: (query.action) ? query.action:/.*/
}).
    exec(function(err, res){
        console.log(res);
    });

Answer 2

With ES6, you can do this with a splat & ternary like this:

Entry.find({
  player: obj.player,
  ...obj.action ? { action: obj.action } : {}
})
.exec(function(err, res){
    console.log(res);
});

Answer 3

Build up your query object programmatically:

var query = {
    player: 'player'
};

if (obj.action) {
    query.action = obj.action;
}

Entry.find(query).exec(function(err, res){
    console.log(res);
});