Simple Shell script to install and run your flask application for first time.

Simple shell script to clone your flask app , installing requirements, activating virtual environment and running the application.

#!/bin/ksh

CURRENT_DIR=`pwd`

echo "please enter your repo link" #input your repo link

read input_variable  #Read input

echo $input_variable

REPOURL=$input_variable

#REPOURL=$input_variable

gitdir=`basename $input_variable .git`

if  [[ ! -d $CURRENT_DIR/$gitdir ]]

then 

git clone $REPOURL 

elif [[ ! -d $CURRENT_DIR/$gitdir/.git ]]

then

mv CURRENT_DIR/$gitdir CURRENT_DIR/$gitdir"_backup" 

git clone $REPOURL

fi

cd $CURRENT_DIR/$gitdir

virtualenv venv

source venv/bin/activate

pip install -r requirements.txt

python app.py

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Python Simple Flask Redis Tutorial

A simple Flask Redis Tutorial

Install requirements : flask, redis

• Install virtual environment:  sudo apt-get install python3-venv

• Creating the python virtual environment:  python3 -m venv venv

• Add the root of the repository to the python path upon virtual environment activation: echo "$(pwd)/src" > redis-venv/lib/python3.5/site-packages/MY_VENV_PYTHONPATH.pth

• Activate your python virtual environment:  . venv/bin/activate  Note: To remove the virtual environment from your shell: deactivate

• Installing required python modules from newly created virtual environment:  Activate your python virtual environment if not already active.  pip install -r requirement.txt

• Run the app  python app.py

Flask Redis sample application Git Source Code

from flask import Flask, jsonify

import redis

import json

app = Flask("redis")

@app.route("/")

def index():    

    #value to save in redis 

    value_to_set = "shiva"

    #set value to key

    redis_db.set('name', value_to_set)   

    return json.dumps(redis_db.keys())

if __name__ == "__main__":

    redis_db = redis.StrictRedis(host="localhost", port=6379, db=0)

    app.run(port=15420)

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PHP Form submit without java script and submit button

Submit a form without submit button and  javascript submit

We mostly prefer php form submit either using javascript or normal submit.

But we can submit a form without submit button and  javascript

have a look at the below code

<?php

if(isset($_POST['submit_x']) && isset($_POST['submit_x']))

{

      echo $_POST['first_name'];

      echo $_POST['last_name'];

      // Save logic

}

?>

<form method="post">

<lable>First Name</lable>

<input type="text" name="first_name" >

<lable>Last Name</lable>

<input type="text" name="last_name" >

<input type="image" name="submit"/>

</form>

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