HK District Check (AWS Lambda)

AWS Lambda function (deployed by serverless) to check the district in Hong Kong of a given GPS coordinate

Usage

GPS coordinates (latitude, longitude) will be checked against the district boundaries defined using the data from https://data.gov.hk/en-data/dataset/hk-had-json1-hong-kong-administrative-boundaries

Please note that the data is in GML, with the format (longitude, latitude)

Requirement

• serverless framework
• Serverless Python Requirements
• virtualenv

Pytohn Libraries

• pandas
• matplotlib

Setup and Deployment

Clone the repository

Install the required npm packages

npm install

Setup AWS Credentials following the article https://serverless.com/framework/docs/providers/aws/guide/credentials/

Create a virtual environment (venv) for developing locally and to have the dependencie separated from other environments

virtualenv venv --python=python3

Generate the file requirements.txt in the virtual environment using the below command

pip freeze > requirements.txt

Deploy to AWS with the below command

serverless deploy

Example

22.301590, 114.174826 => Yau Tsim Mong

Remarks

Reference

Handle Lambda Errors in API Gateway

How to Handle your Python packaging in Lambda with Serverless plugins

License