Casting error while saving in the database - node.js

Question

I am using Angular as frontend and NodeJS for the backend.
I have a route that saves the data received from the frontend to the database. When I execute the save() method, I get prompted the following error:
err : ValidationError: conf.0: Cast to [Boolean] failed for value "[ {
name: 'v', percentage: 2, type: false, status: true } ]" (type string)
at path "conf.0"
Below is the route that stores the data:
app.post("/api/submitTaxCollection", (req, res) => {
console.log(req.body);
const submitTaxSchema = new addTaxesSchema(req.body);
try {
submitTaxSchema.save(function (err) {
if (err) return console.log("err : " + err);
});
} catch (error) {
console.log("ERROR : " + error);
return res.send(error);
}
});
and this is the schema.ts file:
var mongoose = require("mongoose");
//Define a schema
var taxSchema = mongoose.Schema;
var AddTaxSchema = new taxSchema({
parentId: String,
conf: [
{
name: String,
percentage: Number,
type: Boolean,
status: Boolean,
},
],
});
var newTaxesSchema = mongoose.model("addTaxSchema", AddTaxSchema);
module.exports = newTaxesSchema;
In Angular, model is setup as below:
export class TaxRatesConfigurationsModel {
name: string = "";
percentage: number = 0;
type: boolean = false;
status: boolean = true;
}
export class TaxRatesModel {
parentId: string = "";
conf: TaxRatesConfigurationsModel[] = [];
}
and I am calling the API as below:
this._httpService
.post(environment.url + "/api/submitTaxCollection", request)
.subscribe((data) => {
console.log(data);
});
when I console.log(req.body);, I get the following printed to the console (Nodejs):
{
parentId: '23948923nur8cw9yicnyu',
conf: [ { name: 'v', percentage: 2, type: false, status: true } ]
}
and the error occurs in Nodejs
What is causing this weird issue?