Python EET API

Simple to use and mostly secure (mainly pedantic) API for Czech EET Gate.

Installation

pip install czech-eet

Usage

Basic usage with single request

from eet import invoices, helpers

cert_text = b'''
-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----
'''

key_text = b'''
-----BEGIN RSA PRIVATE KEY-----
...
-----END RSA PRIVATE KEY-----
'''

# prepare certificate and private key
cert = helpers.parse_cert(cert_text)
pk   = helpers.parse_key(key_text)

# create config
config = invoices.Config(cert, pk, 141, "1patro-vpravo")

# create factory using config
factory = invoices.Factory(config)

# build new invoice & send
invoice = factory.new("141-18543-05", 236.00, zakl_dan1=100.0, dan1=21.0)
response = invoice.send()
# note: if resending, you should set `eet.invoice.Hlavicka["prvni_zaslani"] = eet.types.boolean(False)`
#       or use scheduler ;-)

# now validate response and get fik
codes = response.codes()
if response:
    print("BKP: {0}\nFIK: {1}".format(codes.bkp, codes.fik))
else:
    print("BKP: {0}\nPKP: {1}".format(codes.bkp, codes.pkp))
    print("Errors:", response.Chyba, response.Varovani)

Example of scheduler

from eet import invoices, helpers, remote

... # prepare invoice as before

# create instance of scheduler
scheduler = remote.Scheduler()

# same as before but now you can resend invoices
response = scheduler.process(invoice)

# call dispatch is reasonable time interval from your mainloop

import time
while True:
    scheduler.dispatch()
    
    time.sleep(60)