DynamoDB

import AWS from 'aws-sdk';

const { AWS_REGION = 'us-east-1', NODE_ENV = 'development', AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY } = process.env;
const config = {
  region: AWS_REGION,
  accessKeyId: AWS_ACCESS_KEY_ID,
  secretAccessKey: AWS_SECRET_ACCESS_KEY,
};

AWS.config.update(config);

const dynamo = new AWS.DynamoDB.DocumentClient({ apiVersion: '2012-08-10' });

export default class DynamoDB {
  // https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB/DocumentClient.html#get-property
  static get(params) {
    return new Promise((resolve, reject) =>
      dynamo.get(
        params,
        (err, { Item }) => err ? reject(err) : resolve(Item)
      )
    );
  }

  // https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB/DocumentClient.html#put-property
  static put(params) {
    return new Promise((resolve, reject) =>
      dynamo.put(
        params,
        err => err ? reject(err) : resolve()
      )
    );
  }

  // https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB/DocumentClient.html#query-property
  static query(params) {
    return new Promise((resolve, reject) =>
      dynamo.query(
        params,
        (err, { Items }) => err ? reject(err) : resolve(Items)
      )
    );
  }

  // https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB/DocumentClient.html#get-property
  static delete(params) {
    return new Promise((resolve, reject) =>
      dynamo.delete(
        params,
        err => err ? reject(err) : resolve()
      )
    );
  }
}