How to use aggregate with $near mongoose? - node.js

Question

I was trying to get random 20 foods near the particular location. When i used find it works but how to use aggregate with $near
Schema:
const foodSchema = new Schema({
foodName: {
type: String,
required: true
},
image: {
type: String,
required: true
},
price: {
type: String,
required: true
},
shopName: {
type: String,
required: true
},
isVerified:{
type:Boolean,
default:false,
required:true
},
isEnabled:{
type:Boolean,
default:false,
required:true
}
,
location: {
type: { type: String },
coordinates: [],
},
shopId:{
type: Schema.Types.ObjectId,
ref: 'Shop',
required: true
}
});
foodSchema.index({ location: "2dsphere" });
Food.aggregate([{$match:{isEnabled:true,location: {
$near: {
$maxDistance: 10000,
$geometry: {
type: "Point",
coordinates: [13.3339, 80.1943]
}
}
}}}])
.then(data=>{
console.log(data);
res.render('user/home',{
pageTitle:"UiMart",
foodlist:data
});
})
.catch(err=>{
console.log(err);
res.send("err");
});
MongoError: $geoNear, $near, and $nearSphere are not allowed in this context
How to use aggregate function with $near mongoose to get random foods near the particular location

Answer 1

Could you try something like this:
Food.aggregate
([
{
$geoNear: {
near: { type: "Point", coordinates: [13.3339, 80.1943] },
distanceField: "dist.calculated",
maxDistance: 10000,
query: { "isEnabled": true }
}
}
])
In the aggregation framework the $geoNear should be the first in the pipeline and you can use the query to filter the results instead of using match.