eos-bpjson-api

A service that caches EOS Block Prodcuer's bp.json files in DynamoDB every 24 hours and exposes an endpoint to retrieve the data using the Serverless Framework.

Summary

This service uses the following AWS resources:

1. Lambda Function: cacheBpJson - Caches the bp.json file of top 50 block producer's by vote count.
2. Lambda Function: getAllProducers - Retrieves cached bp.json files with updated vote counts appended to response.
3. AWS API Gateway to expose getAllProducers as a public endpoint. Requires no credentials.
4. DynamoDB table to hold the cached bp.json files.

Requirements

• Node 8.10 or above
• Serverless Framework
• Setup AWS Credentials for Serverless Framework

Deployment

1. Install package dependencies with npm install.
2. Deploy Serverless service with sls deploy.
3. Make sure to manually execute the cacheBpJson Lambda function once after deployment for initial cache into DynamoDB.
4. After the deployment succeeds, the API Gateway endpoint will be reported in the terminal.

Notes

• sls remove to remove service. This command destroys DynamoDB tables also.