Mongoose Subdocument for Geojson - node.js

Question

I am not able to define a correct reusable Point Schema. I just copied the example schema in https://mongoosejs.com/docs/geojson.html
This is the error I'm encountering when starting the node.js app
/home/******/projects/realista-api/node_modules/mongoose/lib/schema.js:418
throw new TypeError('Invalid value for schema path ' + prefix + key + '');
^
TypeError: Invalid value for schema path coordinates
I already tried using a non-reusable schema. By directly defining it at the parent schema and it works
coordinates: {
type: {
type: String,
enum: ['Point'],
required: true
},
coordinates: {
type: [Number],
required: true
}
},
Here is the code
import { Schema, Document } from 'mongoose';
interface Point extends Document {
type: string,
coordinates: Array<number>,
}
const PointSchema: Schema = new Schema({
type: {
type: String,
enum: ['Point'],
required: true
},
coordinates: {
type: [Number],
required: true
}
}, {
id: false
});
export {
Point,
PointSchema,
}
I'm using that as subdocument in another schema
const ProjectSchema: Schema = new Schema({
owner: {
type: Schema.Types.ObjectId,
ref: 'User',
required: false,
},
logo: {
type: String,
required: false,
},
name: {
type: String,
required: true,
},
location: {
type: String,
required: false,
},
suburb: {
type: String,
required: false,
},
stateCode: {
type: String,
required: false,
},
country: {
type: String,
required: false,
},
countryName: {
type: String,
required: false,
unique: true,
sparse: true,
},
coordinates: PointSchema,// this is the field in question
commission: {
type: Schema.Types.Decimal128,
required: false,
},
tax: {
type: Schema.Types.Decimal128,
required: false,
},
propertyType: {
type: Schema.Types.ObjectId,
ref: 'PropertyType',
required: true,
},
address: {
type: String,
required: false,
},
title: {
type: String,
required: false,
},
description: {
type: String,
required: false,
},
videoTour: {
type: String,
required: false,
},
matterPortUrl: {
type: String,
required: false,
},
currency: {
type: String,
required: false,
},
minPrice: {
type: Schema.Types.Decimal128,
required: false,
},
maxPrice: {
type: Schema.Types.Decimal128,
required: false,
},
otherPrice: {
type: String,
required: false,
},
featureLandSizeMin: {
type: String,
required: false,
},
featureLandSizeMax: {
type: String,
required: false,
},
featureLandSizeUnit: {
type: String,
required: false,
},
featureBuiltStart: {
type: Date,
required: false,
},
featureBuiltEnd: {
type: Date,
required: false,
},
featureNumOfLevel: {
type: Number,
required: false,
},
featureNumOfUnit: {
type: Number,
required: false,
},
featureFlooring: {
type: String,
required: false,
},
featureExterior: {
type: String,
required: false,
},
featureConcierge: {
type: String,
required: false,
},
indoorFeatures: {
type: String,
required: false,
},
outdoorFeatures: {
type: String,
required: false,
},
minBedrooms: {
type: Number,
required: false,
},
maxBedrooms: {
type: Number,
required: false,
},
minBathrooms: {
type: Schema.Types.Decimal128,
required: false,
},
maxBathrooms: {
type: Schema.Types.Decimal128,
required: false,
},
minParking: {
type: Number,
required: false,
},
maxParking: {
type: Number,
required: false,
},
csvVariationPending: {
type: Boolean,
required: false,
default: false,
},
isPrivate: {
type: Boolean,
required: false,
default: false,
},
status: {
type: Boolean,
required: false,
default: false,
},
variations: [{
type: Schema.Types.ObjectId,
ref: 'ProjectVariation',
}],
deletedAt: {
type: Date,
required: false,
}
}, {
collection: 'projects',
timestamps: true,
strict: false,
});
What am I doing wrong? Thanks in advance.

Answer 1

Was able to make it work. Hope this helps others who are developing using node.js
The issue was caused by 2 things:
Mongoose, when declaring subdocuments (nested objects or array of objects), gets confused when there is a type field in the document since in Mongoose concept, it is a reserved word for declaring the type of field. In my case, the type key comes from GeoJSON since it is required by MongoDB to be in that format. Here is a link from mongoose docs for better understanding.
What I just did is change PointSchema to this
import { Schema, Document } from 'mongoose';
interface Point extends Document {
type: string,
coordinates: Array<number>,
}
const PointSchema: Schema = new Schema({
type: {
$type: String,
enum: ['Point'],
required: true
},
coordinates: {
$type: [Number],
required: true
}
}, {
_id: false,
typeKey: '$type',
});
export {
Point,
PointSchema,
}
I'm also having a problem w/ circular dependency in node.js when importing/requiring the PointSchema. This error
/home/******/projects/realista-api/node_modules/mongoose/lib/schema.js:418 throw new TypeError('Invalid value for schema path ' + prefix + key + ''); ^ TypeError: Invalid value for schema path coordinates
occurred because PointSchema is undefined when I'm using it in ProjectSchema.
W/c justifies why issues in Mongoose Github suggest that mostly when they encounter that error, it is because of misspelled types (ObjectID instead of ObjectId), or in my case undefined w/c is invalid type.