A Simple Discord Bot for OCR which is enabled by pytesseract library. Deployable on Heroku (steps to deploy below).

As a personal preference, this bot requires no command to do OCR. So add it to a separate channel and make sure other channels are not visible to it.

• Clone the repo

• Install all the requirements

  pip install -r requirements.txt

• These requirements include "opencv-headless", if you are trying it on a machine which doesn't support it, install the normal OpenCV library.

• Install tesserct-ocr using this command:

  • On Ubuntu

    sudo apt-get install tesseract-ocr
    

  • On Mac

    brew install tesseract
    

  • On Windows, download installer from here

• Don't forget to add your "BOT_TOKEN" in the "bot.py" file.

• Run the python bot using the command:

  python bot.py

  or

  python3 bot.py

• Uncomment the line as shown below before deploying to Heroku:

• Create an account on Heroku
  

• Click on "New" -> "Create new App"
  

• When you click on "Create App", you'll be greeted with this section :
  

• Jump to "Settings" where you'll scroll down to see "Config Vars" & "Buildpacks":
  

• Add "Python Buildpack" and the below mentioned buildpack :

  https://github.com/heroku/heroku-buildpack-apt

  
  
  

• After adding both buildpacks, click on "Reveal Config Vars" :
  

  

• Add the below mentioned "Key = Value" Pair :

  TESSDATA_PREFIX = ./.apt/usr/share/tesseract-ocr/4.00/tessdata

  
  

• After adding both Buildpacks and Config variables, we're now ready to deploy.

• Follow the Steps given in "Deploy" section of your Heroku app.
  

• But, First we have to change the Heroku stack to "heroku-18"

  • Changing it to "heroku-18" made it work for me.

  • Type in the first three commands in your bot directory (assuming you have heroku CLI installed) :

  heroku login

  git init

  heroku git:remote -a "Your-app-name"

  
  

  • Before the "git add ." command, use this command to change the stack to "heroku-18"

    heroku stack:set heroku-18

  
  
  • Then you can proceed with the commands :

  git add .

  git commit -am "make it better"

  git push heroku master

  
  

• It'll take time to push the bot to heroku. Be patient.

• After the build has succeeded, you can go and start your bot by going into "resources" tab and turning the "bot.py" worker ON.

  • Click on the edit icon and turn the bot ON.