Sometimes it is still necessary to read a barcode from a document. In our example we show how this is possible in a serverless application. The Azure function trigger on a Azure Blog Storage and open the image and reads the bardcode and upload the document into SugarCRM. Because we use here a library zbar which is not included by Mac or Linux and needs to get installed we use here Azure Function with Docker. The Function open the image as png or jpeg and read the barcode in the document. Based on the value the data is upload and link in SugarCRM.
| # Last Tested Version 1.8.1 | |
| import logging | |
| import azure.functions as func | |
| from azure.storage.blob import BlockBlobService | |
| import os, io | |
| import json | |
| import base64 | |
| from pyzbar.pyzbar import decode | |
| from PIL import Image | |
| from sugarcrm.client import Client | |
| import base64 | |
| SugarURL = os.environ['SugarURL'] | |
| SugarUser = os.environ['SugarUser'] | |
| SugarPassword = os.environ['SugarPassword'] | |
| def main(myblob: func.InputStream): | |
| logging.info(f"Python blob trigger function processed blob \n" | |
| f"Name: {myblob.name}\n" | |
| f"Blob Size: {myblob.length} bytes") | |
| file = myblob.read() | |
| image = io.BytesIO(file) | |
| barcode=decode(Image.open(image)) | |
| for obj in barcode: | |
| client = Client(SugarURL, SugarUser, SugarPassword) | |
| item = {'Name': obj.data.decode() } | |
| Note = client.set_entry('Notes', item) | |
| Debitor = client.search_by_module(obj.data.decode(), ['DEB_Debitoren']) | |
| try: | |
| relation = client.set_relationship('DEB_Debitoren', Debitor['entry_list'][0]['records'][0]['id']['value'],'deb_debitoren_notes_1', [Note['id']]) | |
| except: | |
| print ("Cloud not find") | |
| image = io.BytesIO(file) | |
| encoded_string = base64.b64encode(image.getvalue()) | |
| encoded_string = encoded_string.decode() | |
| #logging.info(f"Upload \n" | |
| # f"Name: {myblob.name}\n" | |
| # f"Base64: {encoded_string}") | |
| client.set_note_attachment(Note['id'], myblob.name, encoded_string) |
Dockerimage https://cloud.docker.com/repository/docker/dajor85570/barcodedocker/general
