I've made _ids by myself:

That function does not work:

router.get('/getCompetitions', (request, response) => {
    competitionTemplateCopy.find({"_id": 1})
    .then(data => response.json(data))
    .catch(error => response.json(error))
});

CodePudding user response：

Try this :

    competitionTemplateCopy.find(_id:1)
    .then(data => response.json(data))
    .catch(error => response.json(error))
});

And you should add _id: { type: Number, }, in your model