internship_project/app.py

from distutils.command.config import config
from urllib import response
from flask import Flask,render_template,jsonify,request
import os
import joblib
import numpy as np
import yaml
import pandas as pd
import logging
# from gevent.pywsgi import WSGIServer
logging.basicConfig(filename="deployment_logs.logs", format='%(asctime)s %(message)s',level=logging.INFO)

params_path="params.yaml"
logging.info("params.yaml loaded successfully")
webapp_root="webapp"

static_dir=os.path.join(webapp_root,"static")
logging.info("staticdir linked successfully")
template_dir=os.path.join(webapp_root,"templates")
logging.info("template_dir linking successful")

app=Flask(__name__,static_folder=static_dir,template_folder=template_dir)

# port=5000
# app_server = gevent.pywsgi.WSGIServer(('', port), app)
# app_server.serve_forever()

def read_params(config_path):
    try:
        with open(config_path) as yaml_file:
            config=yaml.safe_load(yaml_file)
        return config
    except Exception as e:
        logging.info("The following error message is :",str())


def predict(data):
    try:
        config=read_params(params_path)
        model_dir_path=config["webapp_model_dir"]
        model=joblib.load(model_dir_path)
        prediction=model.predict(data)
        print(prediction)
        return prediction
    except Exception as e:
        logging.info("the following file has an error",str(e))


def api_response(request):
    try:
        data=np.array([list(request.json.values())])
        response=predict(data)
        response={"response":response}
        return jsonify(response)
    except Exception as e:
        print(e)
        error={"something went wrong try again!!"}
        return error

config=read_params(params_path)
raw_data=config["raw_data"]["raw"]
data1=pd.read_csv(raw_data)
# print(data1.head())


logging.info("csv read successful")

@app.route("/",methods=["GET","POST"])
def index():
    sex=sorted(data1["sex"].unique())
    smoker=sorted(data1["smoker"].unique())
    region=sorted(data1["region"].unique())
    if request.method=="POST":
        try: 
            if request.form:
                # data=dict(request.form)
                # data=[list(map(float,data))]
                # response=predict(data)
                # return render_template("index.html",response=response)
                error={"error":"Please Select the correct dropdown value"}
                age=int(request.form.get("age"))
                sex=(request.form.get("sex"))
                if(sex=="female"):
                    sex=0
                elif(sex=="male"):
                    sex=1
                else:
                    return render_template("404.html",error=error)
                bmi=float(request.form.get("bmi"))
                children=request.form.get("children")
                smoker=request.form.get("smoker")
                if(smoker=="no"):
                     smoker=0
                elif smoker=="yes":
                    smoker=1
                else:
                    return render_template("404.html",error=error)
                region=request.form.get("region")
                if region=="northeast":
                    region=0
                elif region=="northwest":
                    region=1
                elif region=="southeast":
                    region=2
                elif region=="southwest":
                    region=3
                else:
                    return render_template("404.html",error=error)
                # data=dict(request.form)
                # data=[list(map(float,data))]
                response=predict(pd.DataFrame([[age, sex, bmi, children, smoker, region]], columns=['age', 'sex', 'bmi', 'children', 'smoker', 'region']))
                # response=predict(data)
                return render_template("index.html",response=str(response[0]))
            elif request.json:
                response=api_response(request)
                return jsonify(response)
        except Exception as e:
            error = {"error":e}
            return render_template("404.html", error=error)
    else:
        return render_template("index.html",sex=sex,smoker=smoker,region=region)

logging.info("application running succesfully")

if __name__=="__main__":
    app.run(port=5000,debug=True)