main.py

from flask import Flask, jsonify, render_template, request, make_response
import transformers
import torch
from torch import nn
import re
import numpy as np
import pandas as pd
from collections import OrderedDict
# import requests
# from bs4 import BeautifulSoup

app = Flask(__name__)

# create a python dictionary for your models d = {<key>: <value>, <key>: <value>, ..., <key>: <value>}
dictOfModels = {"BERT" : transformers.pipeline('sentiment-analysis', model="nlptown/bert-base-multilingual-uncased-sentiment")}
# create a list of keys to use them in the select part of the html code
listOfKeys = []
for key in dictOfModels :
 listOfKeys.append(key)

def get_prediction(message,model):
 # inference
 results = model(message) 
 return results

@app.route('/', methods=['GET'])
def get():
 # in the select we will have each key of the list in option
 return render_template("home.html", len = len(listOfKeys), listOfKeys = listOfKeys)

@app.route('/', methods=['POST'])
def predict():
 message = "This is good movies" #request.form['message']
 # choice of the model
 results = get_prediction(message, dictOfModels['RoBERTa') # get_prediction(message, dictOfModels['request.form.get("model_choice")'])
 print(f'User selected model : {request.form.get("model_choice")}')
 my_prediction = f'The feeling of this text is {results[0]["label"]} with probability of {results[0]["score"]*100}%.'
 return render_template('result.html', text = f'{message}', prediction = my_prediction)



# @app.route('/')
# def home():
# print(1)
# return {'key':"Hello HuggingFace! Successfully deployed. "}
# # model = load_checkpoint('checkpoint.pth')
# # print(2)
# # res = sample(model, obj.maxlen, 'ap')
# # print(3)
# # return {'key':res}