qrbot/qr.py

import requests
import sys

"""
The class implements
REST API for the qrserer
"""
class QR:
    _proto : str = "http"
    _server : str = "api.qrserver.com"
    _version : str = "v1"
    _create_str : str = "create-qr-code"
    _read_str : str = "read-qr-code"

    def create(self, text : str, size=(512, 512)):
        url = f"{self._proto}://{self._server}/{self._version}/{self._create_str}"
        payload = {
            "data": text,
            "size": f"{size[0]}x{size[1]}",
        }

        r = requests.get(url, params=payload)
        return (r.content, r.request.url)

    def read_by_url(self, imgurl: str):
        url = f"{self._proto}://{self._server}/{self._version}/{self._read_str}"
        params = {
                "fileurl": imgurl,
        }
        r = requests.get(url, params=params)

        js = r.json()
        ret = []
        for v in js :
            if v["type"] != "qrcode" :
                continue

            symbol = v["symbol"]
            for seq in symbol :
                data = seq["data"]
                if "error" in symbol or data == None:
                    continue
                ret.append(data)

        return ret