how to save geojson with mongodb? - node.js

Question

I am trying to save a geojson, using mongoose and nodejs, for the moment I want to save a geojson of type 'MultiPoint'
this is the scheme that I have defined to save the geojson
let capaSchema = new Schema({
nombrecapa: {
type: String,
required: [true, 'El nombre de la capa es necesario']
},
descripcion: {
type: String,
required: [false]
},
geojson: Object([
geoSchema
])
});
const geoSchema = new Schema({
type: {
type: String,
default: 'FeatureCollection',
},
features: [
Object({
type: {
type: String,
default: 'Feature',
},
geometry: {
type: {
type: String,
default: 'MultiPoint'
},
coordinates: {
type: [
Number
],
index: '2dsphere'
}
}
})
],
});
this is the object that I want to save using the save method of moongose, first I make an instance of the schema, maybe my error may be inside the instance.
let capa = new Capa({
nombrecapa: body.nombrecapa,
descripcion: body.descripcion,
geojson: {
type: body.typefeature,
features: [{
type: body.featurestype,
geometry: {
type: body.geometrytype,
coordinates: [
[-105.01621, 39.57422],
[-105.01231, 39.57321]
]
}
}
]
}
});
capa.save((err, capadb) => {
if (err) {
return res.status(400).json({
ok: false,
err
})
}
res.json({
ok: true,
capa: capadb
})
})
but at the time of saving I returned the following errors:
"_message": "Capa validation failed",
"message": "Capa validation failed: geojson.0.features.0.geometry.coordinates: Cast to Array failed for value \"[ [ -105.01621, 39.57422 ], [ -105.01231, 39.57321 ] ]\" at path \"geometry.coordinates\"",
"name": "ValidationError"

Answer 1

In your schema you have coordinates as a single array but the data being passed is actually an array of nested arrays
I think what you need here is
coordinates: {
type: [[Number]],
index: '2dsphere'
}