nestjs mongoose schema with embedded objects without embedded documents - node.js

Question

I am creating a schema that included embedded objects (not documents). I do not need embedded documents because the embedded objects do not exist independently and I do not need associated object IDs. This is not well documented in the Nest documentation but I came up with this which is working for the most part:
const pointType = {
coordinates: { type: [Number], required: true },
type: { type: ['Point'], required: true },
}
const locationType = {
name: String,
address: addressType,
geolocation: { pointType },
}
const timedLocationType = {
timestamp: { type: Date, required: true, default: Date.now() },
geolocation: { type: pointType, required: true }, // <<---- Problem is here with the 'required' attribute
}
export class TripLocation {
name: string
geolocation: Point
address?: Address
}
export class TimedLocation {
time: Date
geolocation: Point
}
#Schema()
export class Trip {
#Prop({ type: locationType, required: true })
start: TripLocation
#Prop({ type: locationType, required: true })
end: TripLocation
#Prop({ type: [timedLocationType], default: [] }) // <<-- Problem is here
route: TimedLocation[]
}
This works except for having the timedLocation array. Mongoose does not seem to like having the route property as an array. As is, the code throws this error:
.../node_modules/mongoose/lib/schema.js:1001
throw new TypeError(`Invalid schema configuration: \`${name}\` is not ` +
^
TypeError: Invalid schema configuration: `True` is not a valid type at path `geolocation.required`. See .../mongoose-schematypes for a list of valid schema types.
at Schema.interpretAsType (.../node_modules/mongoose/lib/schema.js:1001:11)
If I remove the required attribute on the timedLocationType.geolocation, the error goes away. Alternatively, if I turn the route property from an array to a single object, and keep the required` attribute, the error also goes away:
#Prop({ type: timedLocationType })
route: TimedLocation