from flask import request
from flask_restful import Resource
from models import db, Infrastructure

class InfrastructureResource(Resource):
    def get(self, id=None):
        if id:
            infra = Infrastructure.query.get_or_404(id)
            return {"id": infra.id, "name": infra.name, "location": infra.location}
        else:
            infra_list = Infrastructure.query.all()
            return [{"id": infra.id, "name": infra.name, "location": infra.location} for infra in infra_list]

    def post(self):
        data = request.get_json()
        new_infra = Infrastructure(
            name=data['name'],
            location=data['location']
        )
        db.session.add(new_infra)
        db.session.commit()
        return {"message": "Успешно добавлено", "id": new_infra.id}, 201

class InfrastructureSearchResource(Resource):
    def get(self):
        name = request.args.get('name')
        location = request.args.get('location')

        query = Infrastructure.query

        if name:
            query = query.filter(Infrastructure.name.like(f'%{name}%'))
        if location:
            query = query.filter(Infrastructure.location.like(f'%{location}%'))

        infra_list = query.all()
        return [{"id": infra.id, "name": infra.name, "location": infra.location} for infra in infra_list]

POST query - (Invoke-WebRequest -Uri http://127.0.0.1:5000/infrastructure -Method POST -Headers @{"Content-Type"="application/json"} -Body '{"name": "имя", "location": "адрес"}').Content

GET query - (Invoke-WebRequest -Uri http://127.0.0.1:5000/infrastructure).Content

i got 
[
    {
        "id": 1,
        "name": "???",
        "location": "?????"
    },
    {
        "id": 2,
        "name": "???",
        "location": "?????"
    }
]

how i can fix it?

i try encode and decode args to cp1251 and utf-8, thats not helped for me

also i tried JSON_AS_ASCII = False in my config file