appy

An opinionated productive web framework that helps scaling business easier, i.e. focus on monolith first, only move to microservices with GRPC later on when your team is ready.

Additional Notes

  • appy is made as a package for your application to import without the need to install any additional binary
  • appy glues the great packages to provide best productivity in developing Go web application
  • appy comes with 2 build types:
    • debug - when the code is NOT running within the binary
    • release - when the code is running within the binary
  • appy follows 12factor via APPY_ENV environment variable:
    • by default, it is development
    • when APPY_ENV=staging is set, the config file is configs/.env.staging
    • utilise configs/.env.<APPY_ENV> to support multiple environments deployment

Overview

architecture

Features

package cmd

  • Powerful built-in commands

    My first awesome web application in Go.
    
    Usage:
      myapp [command]
    
    Available Commands:
      build             Compile the static assets into go files and build the release build binary (only available in debug build)
      config:dec        Decrypt a config value using the secret in `configs/<APPY_ENV>.key` or `APPY_MASTER_KEY` (only available in debug build)
      config:enc        Encrypt a config value using the secret in `configs/<APPY_ENV>.key` or `APPY_MASTER_KEY` (only available in debug build)
      db:create         Create all databases for the current environment
      db:drop           Drop all databases for the current environment
      db:migrate        Migrate the database(default: all, use --database to specify the target database) for the current environment
      db:migrate:status List all the database migration status(default: all, use --database to specify the target database) for the current environment
      db:rollback       Rollback the database(default: primary, use --database to specify the target database) to previous version for the current environment
      db:schema:dump    Dump all the databases schema for the current environment (only available in debug build)
      db:schema:load    Load all the databases schema for the current environment
      db:seed           Seed all databases for the current environment
      dc:down           Tear down the docker compose cluster
      dc:restart        Restart services that are defined in `docker-compose.yml`
      dc:up             Create and start containers that are defined in `docker-compose.yml`
      gen:migration     Generate database migration file(default: primary, use --database to specify the target database) for the current environment (only available in debug build)
      help              Help about any command
      middleware        List all the global middleware
      routes            List all the server-side routes
      secret            Generate a cryptographically secure secret key for encrypting cookie, CSRF token and config
      secret:rotate     Rotate the secret that is used to encrypt/decrypt the configs (only available in debug build)
      serve             Run the HTTP/HTTPS web server without `webpack-dev-server`
      setup             Run dc:up/db:create/db:schema:load/db:seed to setup the datastore with seed data
      ssl:setup         Generate and install the locally trusted SSL certs using `mkcert`
      ssl:teardown      Uninstall the locally trusted SSL certs using `mkcert`
      start             Run the HTTP/HTTPS web server with `webpack-dev-server` in development watch mode (only available in debug build)
      teardown          Tear down the docker compose cluster
      work              Run the worker to process background jobs
    
    Flags:
      -h, --help      help for myapp
      -v, --version   version for myapp
    
    Use "myapp [command] --help" for more information about a command.
    
  • Flexible custom commands building

package mailer

  • Ready-to-use SMTP email sending

  • I18n support

  • HTML templates binary embed support

  • Developer friendly email preview UI

mailer_preview_ui

package pack

  • Powerful built-in HTTP middleware

    • API Only

      Remove Set-Cookie response header if the X-API-ONLY: 1 request header is sent.

    • CSRF

      Protect cookies from Cross-Site Request Forgery by including/validating a token in the cookie across requests.

    • GZIP Compress

      Compress the responses before returning it to the clients.

    • Health Check

      Provide the HTTP GET endpoint for health check purpose.

    • I18n

      Provide I18n support which the translations are stored in <PROJECT_NAME>/pkg/locales/*.yml.

    • Logger

      Provide logger support.

    • Mailer

      Provide mailer support which the views templates are stored in <PROJECT_NAME>/pkg/views/mailers/**/*.{html,txt}.

    • Prerender

      Prerender and return the SPA page rendered by Chrome if the HTTP request is coming from the search engines.

    • Real IP

      Retrieves the client's real IP address via X-FORWARDED-FOR or X-REAL-IP HTTP request header.

    • Recovery

      Recover the HTTP request from panic and return 500 error page.

    • Request ID

      Generate UUID v4 string for every HTTP request.

    • Request Logger

      Log the HTTP request information.

    • Secure

      Provide the standard HTTP security guards.

    • Session

      Provide session management using cookie/redis.

    • SPA

      Provide SPA hosting with specific path.

    • View Engine

      Provide server-side HTML template rendering.

  • Fully integrated with gqlgen with watch mode

  • Ready-to-use test context builder for unit test

package record

  • Powerful database management commands

    db:create         Create all databases for the current environment
    db:drop           Drop all databases for the current environment
    db:migrate        Migrate the database(default: all, use --database to specify the target database) for the current environment
    db:migrate:status List all the database migration status(default: all, use --database to specify the target database) for the current environment
    db:rollback       Rollback the database(default: primary, use --database to specify the target database) to previous version for the current environment
    db:schema:dump    Dump all the databases schema for the current environment (only available in debug build)
    db:schema:load    Load all the databases schema for the current environment
    db:seed           Seed all databases for the current environment
    
  • Extended sql.DB with sqlx

  • Fully featured ORM

    • Multiple databases support
    • Master/Replica switch
    • Soft delete
    • Associations (Not Yet Supported)
      • Has One
      • Has Many
      • Belongs To
      • Many To Many
      • Polymorphism
      • Preload
      • Eager Load
    • Callbacks
      • BeforeValidate/AfterValidate
      • BeforeCreate/AfterCreate
      • BeforeDelete/AfterDelete
      • BeforeUpdate/AfterUpdate
      • BeforeCommit/AfterCreateCommit/AfterDeleteCommit/AfterUpdateCommit
      • BeforeRollback/AfterRollback
    • Composite primary keys
    • Execution with context
    • SQL query builder/logger/inspector
    • Transactions
    • Validations with I18n support
  • Performant ORM

    go test -run=NONE -bench . -benchmem -benchtime 10s -failfast ./record
    goos: darwin
    goarch: amd64
    pkg: github.com/appist/appy/record
    BenchmarkInsertRaw-4                1239          10103533 ns/op              88 B/op          5 allocs/op
    BenchmarkInsertDB-4                  898          11351591 ns/op            1548 B/op         19 allocs/op
    BenchmarkInsertORM-4                 826          13826999 ns/op           15338 B/op        283 allocs/op
    BenchmarkInsertMultiRaw-4            529          21830643 ns/op          107896 B/op        415 allocs/op
    BenchmarkInsertMultiDB-4             481          20931749 ns/op          166302 B/op        441 allocs/op
    BenchmarkInsertMultiORM-4            471          23261618 ns/op          791677 B/op       3872 allocs/op
    BenchmarkUpdateRaw-4                 903          13807008 ns/op            1064 B/op         21 allocs/op
    BenchmarkUpdateDB-4                 1008          13577352 ns/op            3677 B/op         52 allocs/op
    BenchmarkUpdateORM-4                 788          13923442 ns/op            8920 B/op        233 allocs/op
    BenchmarkReadRaw-4                  2162           4723198 ns/op            1810 B/op         47 allocs/op
    BenchmarkReadDB-4                   2263           5300805 ns/op            3257 B/op         69 allocs/op
    BenchmarkReadORM-4                  2259           5184327 ns/op            6911 B/op        230 allocs/op
    BenchmarkReadSliceRaw-4             2210           5871991 ns/op           23088 B/op       1331 allocs/op
    BenchmarkReadSliceDB-4              2197           5752959 ns/op           25070 B/op       1353 allocs/op
    BenchmarkReadSliceORM-4             1864           6249231 ns/op          246630 B/op       1526 allocs/op
    PASS
    ok      github.com/appist/appy/record   344.692s
    
  • Ready-to-use DB/ORM mocks for unit test

package view

  • Performant and fully featured template engine

  • I18n support

  • HTML templates binary embed support

package worker

  • Fully featured background job processing backed by Redis

    • Cron jobs (Work In Progress)
    • Expiring jobs
    • Unique jobs
    • Scheduled jobs
    • Error handling
    • Middleware
    • Responsive Web UI + Authorization + Search (Work In Progress)
    • Strict/Weighted priority queues
  • Ready-to-use handler mock for unit test

Getting Started

Prerequisites

Quick Start

Step 1: Create the project folder with go module and git initialised.

$ mkdir <PROJECT_NAME> && cd $_ && go mod init $_ && git init

Note: The <PROJECT_NAME> must be an alphanumeric string.

Step 2: Create main.go with the snippet below.

package main

import (
  "github.com/appist/appy/cmd"
)

func main() {
  err := cmd.Scaffold()

  if err != nil {
    panic(err)
  }
}

Step 3: Initialize the project layout.

$ go run .

Step 4: Setup the databases using Docker Compose.

$ go run . setup

Step 5: Start developing your application locally.

$ go run . start

Acknowledgement

  • asynq - For processing background jobs
  • cobra - For building CLI
  • gin - For building HTTP router
  • gqlgen - For building GraphQL API
  • sqlx - For interacting with MySQL/PostgreSQL
  • testify - For writing unit tests
  • zap - For blazing fast, structured and leveled logging

GitHub