Sample composer.json for managing plugins via Composer

composer.json

{
  "name": "your-github-name/your-repo",
  "license": "GPLv3",
  "minimum-stability": "dev",
  "prefer-stable": true,
  "authors": [
    {
      "name": "Your Name",
      "email": "[email protected]"
    },
  ],
  "repositories": [
    {
      "type": "composer",
      "url": "https://wpackagist.org"
    },
    {
      "type": "vcs",
      "url": "[email protected]:deliciousbrains/wp-amazon-web-services.git"
    },
    {
      "type": "vcs",
      "url": "[email protected]:humanmade/mercator.git"
    }
  ],
  "require": {
    "php": ">=5.6",
    "composer/installers": "~1.0.12",
    "deliciousbrains/wp-amazon-web-services": "0.3.6",
    "humanmade/mercator": "dev-master#04251f596eef8e3c7c12dce7b0627958b44acd19",
    "joshtronic/php-loremipsum": "dev-master",
    "wpackagist-plugin/co-authors-plus": "~3.2.1",
    "wpackagist-plugin/wp-redis": "0.5.0"
  },
  "require-dev": {
    "phpunit/phpunit": "~4.8.21",
    "wpackagist-plugin/debug-bar": "~0.8.4",
    "wpackagist-plugin/debug-bar-actions-and-filters-addon": "~1.5.1",
    "wpackagist-plugin/query-monitor": "~2.12.0"
  },
  "scripts": {
    "post-install-cmd": "bin/post-install.sh",
    "post-update-cmd": "bin/post-install.sh"
  },
  "extra": {
    "installer-paths": {
      "wp-content/mu-plugins/{$name}/": ["type:wordpress-muplugin"],
      "wp-content/plugins/{$name}/": ["type:wordpress-plugin"],
      "wp-content/themes/{$name}/": ["type:wordpress-theme"]
    }
  }
}