JSON multiple alias names angular 8 - json

Question

I have below interface.
interface ProductJson {
id: number;
name: string;
price: number;
}
I want to have multiple alias names for price, like price and alias names: rate, etc. How can I read json data attribute 'rate' for 'price' and also read 'price' too.

Answer 1

You can use a custom serializer to create aliases between fields:
Example using #kaiu/serializer:
class ProductJson {
id: number;
name: string;
#FieldName('rate')
price: number;
}
Or you can also create a getter method and use the serializert to map your JSON to a class instance in order to use your method directly, see https://kaiu-lab.github.io/serializer/ for in-depth stuff.

Answer 2

One way is to maintain a group of attribute names that you want to alias.
And then add the interface property price to the json itself, if it contains the aliased properties like rate or amount.
Now you can simply access price from else where, which should give the same value
Ex:
var price_group = ['price', 'rate', 'amount'];
var some_other_group = []
var resp = {rate: 200, p: 12}
var resp2 = {price: 300, p: 12};
Object.keys(resp).forEach(key => {
if(price_group.indexOf(key) > -1){
resp.price = resp[key]
}
});
console.log(resp.price)
Object.keys(resp2).forEach(key => {
if(price_group.indexOf(key) > -1){
resp.price = resp[key]
}
});
console.log(resp2.price)

Answer 3

I'm not sure you can do that tbh.
You can easily do it by programming your stuff that reads/writes the json to accept stuff like rate, price, moolah and just write it as
{
price: number
}
edit: what i'm saying is you take the user input or any other input that specifies something like {moolah: 30} and you take that '30' and put it on {price: 30} in your json.