Python Requires Chilkat v11.0.0+

PayPal: Save a payable invoice QR code as a PNG

See more PayPal Examples

Generate a 300-pixel payment QR code for a sent, payable invoice. Decode the base64 image into a PNG for a printed invoice; the code opens the payment page, and is not proof of payment.

PayPal documentation

Python

import sys
import chilkat2

success = False

# See Unlock Chilkat before making requests.
# For the merchant's internal backoffice application. Load the sandbox token
# from the merchant's credential store. Keep it out of publicly distributed apps.
# See Get a PayPal access token.
http = chilkat2.Http()
http.AuthToken = "SANDBOX_ACCESS_TOKEN"
resp = chilkat2.HttpResponse()

# Use a sent, payable invoice. Width and height are JSON numbers, in pixels.

http.SetUrlVar("id","INVOICE_ID")
body = chilkat2.JsonObject()
body.UpdateInt("width",300)
body.UpdateInt("height",300)
body.UpdateString("action","pay")

success = http.HttpJson("POST","https://api-m.sandbox.paypal.com/v2/invoicing/invoices/{$id}/generate-qr-code",body,"application/json",resp)
if (success != True):
    print("No HTTP response: " + http.LastErrorText)
    sys.exit()

if ((resp.StatusCode < 200) or (resp.StatusCode >= 300)):
    errorInfo = chilkat2.JsonObject()
    errorInfo.Load(resp.BodyStr)
    print("HTTP " + str(resp.StatusCode) + " " + errorInfo.StringOf("name") + " " + errorInfo.StringOf("details[0].issue"))
    print("PayPal debug ID: " + errorInfo.StringOf("debug_id"))
    sys.exit()

result = chilkat2.JsonObject()
parsed = result.Load(resp.BodyStr)
if (parsed != True):
    print("Expected a JSON response; HTTP " + str(resp.StatusCode))
    sys.exit()

png = chilkat2.BinData()
if (result.HasMember("image") != True):
    print("QR response did not contain an image.")
    sys.exit()

decoded = png.AppendEncoded(result.StringOf("image"),"base64")
if (decoded != True):
    print("Invalid base64 image.")
    sys.exit()

savedImage = png.WriteFile("paypal-invoice-qr.png")
if (savedImage != True):
    print("Could not write the invoice QR image.")
    sys.exit()

print("Saved paypal-invoice-qr.png.")