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Pil_img = qrcode.make(value_to_turn_into_qrcode) Given that, we can put the logic that returns a string value as a QR code image into a function:ĭef qr_code_send_file(value_to_turn_into_qrcode): Then we will get the QR code image shown earlier in the HTTP response. When we run the sample script, we get an endpoint that receives HTTP POST requests made to /api/qrcode. Previously, I discussed how we can create an API endpoint that generates a QR Code image, with Python 3 Flask-RESTPlus and python-qrcode. Generating a QR Code image with python-qrcode When we do so, we can fulfil functionalities to trigger a server action through a QR code. Given that, we will be able to embed some data in our QR code for a reader to send to a server endpoint. In this situation, we can send data to the server through query string variables. Given that, the browser sends a HTTP GET request to that URL.
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When QR code readers pick up an URL in a QR code image, they start a web browser to retrieve the resource from the URL. What happens when a QR code reader picks up an URL With this in mind, let's look at how we can use pycrypto, python-qrcode and Flask-RESTPlus to create QR codes that can send encrypted data to an endpoint. In addition, you can embed data that you wish to send to the endpoint in the QR codes. Given that, you can use QR codes to send HTTP requests to an endpoint of your HTTP server. If you want to direct someone to a web page without saying a word, then you can use QR codes to do so.įor example, your QR code reader will direct your phone's browser to visit our home page when you scan the following QR Code:
#PYTHON QR CODE READER API HOW TO#
How to use pycrypto, python-qrcode and Flask-RESTPlus to create QR codes that can send encrypted data to an endpoint