Currency Rate History

This project demostrate how superheroic Python modules Zappa solves the common challenges in modern web applications.

• Async tasks
• Periodic background task

Prerequisite

If you're deploying a Django application with Zappa for the first time, you might want to read Edgar Roman's Django Zappa Guide.

1. A free account from Currency Layer
2. Cloud accessible database
3. S3 bucket, for accessing static content, CSS, JS files

Installation

Clone this repo

git clone http://github.com/arnoldgithub/Currency_Rate.git

Install required Python modules

cd Currency_Rate
pip3 install -r requirements.txt

Configurations

There are several values that you have to change before you can run this demo code

1. Replace the values of database inside Currency_Rate/settings.py with your database values

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': '<your_db_name>',
        'USER': '<your_db_user>',
        'PASSWORD': '<your_db_password>',
        'HOST': '<your_db_host>',
        'PORT': '5432',
    }
}

2. In Currency_Rate/settings.py, replace <your_api_layer_access_key> with your Currency Layer API access key

API_LAYER_ACCESS_KEY = '<your_api_layer_access_key>'

3. In zappa_settings.json, replace values in SecurityGroupIds, SubnetIds with your values.

"vpc_config" : {
    "SubnetIds": [ "<your_subnet_1>", "<your_subnet_2" ], // use the private subnet
    "SecurityGroupIds": [ "your_sg" ]
},

First deployment

zappa deploy

After the first deployment, you have to add a new host to your ALLOWED_HOSTS, type

zappa status

to check the new host in the API Gateway URL section of the result.

Add that value to your ALLOWED_HOSTS, remember to add the host only, but not the whole value.

Update the deployed code

zappa update