README.md

Temperature Feed

Description

This Django project provides a GraphQL API for monitoring and retrieving temperature readings. The application uses Graphene-Django to define and expose GraphQL queries for current temperature data and historical temperature statistics within specified time ranges.

Features

• Django app which can store temperature readings (a timestamp and a value) in the database.
• Subscribe to the temperature feed (see how to set up the temperature feed) to continuously populate the database.
• Current Temperature Query: Fetch the most recent temperature reading.
• Temperature Statistics Query: Fetch minimum and maximum temperatures over a specified date range.
• WebSocket Subscription: Real-time temperature updates (if applicable).
• A Dockerfile to make the whole setup portable and easy to-use.

Installation

Prerequisites

• Python 3.7 or higher
• pip
• PostgreSQL

Setup

1. Clone the Repository:

git clone https://github.com/Ashnayak/Temperature-Feed.git
cd Temperature-Feed

2. Install Required Packages:

pip install -r requirements.txt

3. Configure the Database:Edit the settings.py file to configure the database settings under the DATABASES section.

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'your_database_name',
        'USER': 'your_database_user',
        'PASSWORD': 'your_database_password',
        'HOST': 'localhost',
        'PORT': '5432',
    }
}

4. Run Migrations:

python manage.py migrate

5. Start the Server:

python manage.py runserver

Usage

Access the GraphQL interface through http://localhost:8000/graphql/ where you can execute queries like the following:

• Fetch Current Temperature:

query {
  currentTemperature {
    value
    timestamp
  }
}

• Fetch Temperature Statistics:

query {
  temperatureStatistics(after: "2024-01-01T00:00:00Z", before: "2024-01-02T00:00:00Z") {
    min
    max
  }
}

Data:

GraphQL APIs:

Testing

Run the following command to execute automated tests:

pytest