README.md

Serverless aws middleware

This middleware provide the interface of lambda's handler to use request => response and provide some AWS features like mysql, event queue, s3, logging, etc.

Example usage

A wrapping function is provided from middleware

import {
  AWSPluginAux,
  LoggerPluginAux,
  LogLevel,
  middleware,
  TracerPluginAux,
} from 'serverless-simple-middleware';

export type Aux = AWSPluginAux & TracerPluginAux & LoggerPluginAux;

export const handler = middleware.build<Aux>([
  middleware.aws({
    config: undefined,
  }),
  middleware.trace({
    route: 'es:index/event',
    queueName: 'event_queue',
    system: 'AppName',
    awsConfig: undefined,
    region: 'ap-northeast-2',
  }),
  middleware.logger({
    name: __filename,
    level: LogLevel.Stupid,
  }),
]);

export const spam = handler(
  async ({ request, aux }): Promise<ResponseType> => {
    const { logger, db } = aux;
    const body: ReqestBody = request.body;
    logger.info('requset log');

    const response = await logic(db, body);
    return response;
  },
);

Include features

• event queue (AWS SQS)
• S3
• logging
• dynamodb
• organize request object
• setting response object
• built-in http error handling module
• redis, typeorm, mongodb.
• tmp file management