URL Shortener (AWS Chalice)

Project to create URL Shortener using:

• AWS Chalice
• AWS Lambda
• AWS DynamoDB

Prerequisites

• AWS Account
• AWS IAM Role with Access Keys and appropriate policies attached
• Python 2.7.x or 3.6.x

Create DyanmoDB table

• Open the DynamoDB console
• Choose Create Table
• In the Create DynamoDB table screen, do the following:
  • In the Table name field, type url-shortener
  • For the Primary key, in the Partition key field, type token. Set the data type to String.
• Click Create.

Creating AWS Chalice Virtual Environment

mkdir aws-chalice
cd aws-chalice
python3 -m venv chalice
source chalice/bin/activate

Installing AWS Chalice and boto3

pip3 install chalice
pip3 install boto3

Configuring AWS credentials

touch ~/.aws/config
echo "[default]" >> ~/.aws/config
echo "aws_access_key_id=AK123" >> ~/.aws/config
echo "aws_secret_access_key=abc123" >> ~/.aws/config
echo "region=us-east-1" >> ~/.aws/config

Cloning this application from github

git clone https://github.com/skipluck/url-shortener-chalice

Running the application locally

AWS Chalice allows you to spin up a local HTTP server that mimics AWS API gateway. This is helpful for testing applications prior to deploying to AWS.

chalice local

Open a new terminal window and use curl to test

curl -H "Content-Type: application/json" -X POST -d '{"url":"https://www.google.com"}' http://localhost:8000/

Even while running the application locally it will make entries in DynamoDB on AWS.

Deploying the application to AWS

chalice deploy

Deleting the application from AWS

chalice delete