Generate Barcode using Python

Step 1: Download and Install Python

Step 2: Open CMD prompt and run the following command to install flask and barcode module

>> pip install flask

>> pip install python-barcode

Step 3: Open the new text document and place the following code

import io

from flask import Flask, send_file, request

import barcode

from barcode.writer import ImageWriter

app=Flask(__name__)

@app.route('/search', methods=['GET'])

def search_data():

    query = request.args.get('query', '')

    ean = barcode.get('code128', query, writer=ImageWriter())  

    ean.default_writer_options['module_height'] = 5.0    

    ean.default_writer_options['write_text'] = False

    filename = ean.save(query)

    with open(filename, 'rb') as bites:

        return send_file(

                     io.BytesIO(bites.read()),

                     attachment_filename= query + '.png',

                     mimetype='image/png'

               )

if __name__ == "__main__":

    app.run(debug=True)  

Step 4: Save the file in .py format. (e.g. file_nm.py)

Step 5: Deploy this python web app in Restful web service.