Formatting date in find() mongoDB/mongoose query result? - node.js

Question

My MongoDB collection have an ISODate field and I want to format the result to dd/mm/yyyy.
My model:
const Pedido = new Schema({
id: {
type: String,
required: true
},
cliente: {
type: Schema.Types.ObjectId,
ref: 'clientes',
required: true
},
date: {
type:Date
}
})
mongoose.model('pedidos',Pedido)
And that's the query and render:
var query = await Pedido.find().populate('cliente').lean().exec()
res.render("admin/pedidos",{pedidos: query})
I'm using handlebars
{{#each pedidos}}
<h5 class="ordem1">Pedido #{{id}} <small>{{date}}</small></h5>
{{/each}}
It's showing a result like that:
Wed Apr 08 2020 21:00:00 GMT-0300 (GMT-03:00)
but I want to show: 08/04/2020
Could anybody help me with this? Thank you!!

Answer 1

we can use $dateToString operator to format date, check the mongoDb Docs
as you can see, we can use this $dateToString operator only in aggregate pipeline, in the $project step
here is a simple example in mongo playground mongoplayground
in your example, we could do the same process, but use $lookup instead of populate
the query may be something like that
Pedido.aggregate([
{
$match: {} // add your search here
},
{
$lookup: { // this is the alternative to the populate
from: 'clientes',
localField: 'cliente',
foreignField: '_id',
as: 'clientes'
}
},
{
$project: { // add all the fields you need from the collection, if you need to omit something from the query results, just don't mention it here
id: 1,
clientes: 1,
date: { $dateToString: { format: "%d/%m/%Y", date: "$date" } } // this will return the date in the format "dd/MM/yyyy"
}
}
])