mongoose delete one code example

Example 1: deleteOne mongoose

Tank.deleteOne({ size: 'large' }, function (err) {
  if (err) return handleError(err);
  // deleted at most one tank document
});

Example 2: mongoose find by and delete

Campground.findByIdAndRemove(req.params.id, function(err){
      if(err){
          res.redirect("/campgrounds");
      } else {
          res.redirect("/campgrounds");
      }
   });

Example 3: mongoose model

const schema = new mongoose.Schema({ name: 'string', size: 'string' });
const Tank = mongoose.model('Tank', schema);

Example 4: create document mongoose

var Tank = mongoose.model('Tank', yourSchema);

var small = new Tank({ size: 'small' });
small.save(function (err) {
  if (err) return handleError(err);
  // saved!
});

// or

Tank.create({ size: 'small' }, function (err, small) {
  if (err) return handleError(err);
  // saved!
});

// or, for inserting large batches of documents
Tank.insertMany([{ size: 'small' }], function(err) {

});

Example 5: delete document mongose

Model.deleteOne({ options }, function (err) {});

Example 6: model mongoose

const modelName = mongoose.model("collectionname", collectionSchema);

//example
const fruitSchma = new mongoose.Schema ({
  name: String
});
const Fruit = mongoose.model("Fruit", fruitSchema);