from flask import Flask, jsonify, request
import json

app = Flask(__name__)

# http get 127.0.0.1:5000/api/portal/get columns:='["hostname"]' limit=9
@app.route("/api/portal/get", methods=["GET"])
def index():
    print(request.json)
    columns = request.json.get("columns")
    limit = int(request.json.get("limit"))

    hosts: List[dict] = []

    for host in range(1, limit + 1):
        hosts.append({"hostname": f"content-creator-{host}"})

    # определить количество хостов в запросе ключ `limit`
    return jsonify({"result": hosts, "done": True})


app.run()