strapi/docs/3.0.0-beta.x/concepts/configurations.md

sidebarDepth
2

Configurations

The main configurations of the project are located in the ./config directory. Additional configs can be added in the ./api/**/config folder of each API and plugin by creating JavaScript or JSON files.

::: tip Inside the /config folder, every folder will be parsed and injected into the global object strapi.config. Let's say, you added a folder named credentials with two files stripe.json and paypal.json into it. The content of these files will be accessible through strapi.config.credentials.stripe and strapi.config.credentials.paypal. :::

Application

Contains the main configurations relative to your project.

Path — ./config/application.json.

{
  "favicon": {
    "path": "favicon.ico",
    "maxAge": 86400000
  },
  "public": {
    "path": "./public",
    "maxAge": 60000
  }
}

• favicon
  • path (string): Path to the favicon file. Default value: favicon.ico.
  • maxAge (integer): Cache-control max-age directive in ms. Default value: 86400000.
• public
  • path (string): Path to the public folder. Default value: ./public.
  • maxAge (integer): Cache-control max-age directive in ms. Default value: 60000.

Custom

Add custom configurations to the project. The content of this file is available through the strapi.config object.

Example

Path — ./config/custom.json.

{
  "backendURL": "http://www.strapi.io",
  "mainColor": "blue"
}

These configurations are accessible through strapi.config.backendURL and strapi.config.mainColor.

Functions

The ./config/functions/ folder contains a set of JavaScript files in order to add dynamic and logic based configurations.

All functions that are exposed in this folder or in your ./config folder are accessible via strapi.config.functions['fileName']();

Bootstrap

Path — ./config/functions/bootstrap.js.

The bootstrap function is called at every server start. You can use it to add a specific logic at this moment of your server's lifecycle.

Here are some use cases:

• Create an admin user if there isn't one.
• Fill the database with some necessary data.
• Check that the database is up-and-running.
• Load some environments variables.

The bootstrap function can be synchronous or asynchronous

Synchronous

module.exports = () => {
  // some sync code
};

Return a promise

module.exports = () => {
  return new Promise(/* some code */);
};

Be async

module.exports = async () => {
  await someSetup();
};

CRON tasks

CRON tasks allow you to schedule jobs (arbitrary functions) for execution at specific dates, with optional recurrence rules. It only uses a single timer at any given time (rather than reevaluating upcoming jobs every second/minute).

This feature is powered by node-schedule node modules. Check it for more information.

::: tip Make sure the enabled cron config is set to true in ./config/environments/**/server.json file. :::

The cron format consists of:

*    *    *    *    *    *
┬    ┬    ┬    ┬    ┬    ┬
│    │    │    │    │    |
│    │    │    │    │    └ day of week (0 - 7) (0 or 7 is Sun)
│    │    │    │    └───── month (1 - 12)
│    │    │    └────────── day of month (1 - 31)
│    │    └─────────────── hour (0 - 23)
│    └──────────────────── minute (0 - 59)
└───────────────────────── second (0 - 59, OPTIONAL)

To define a CRON job, add your logic like below:

Path — ./config/functions/cron.js.

module.exports = {
  /**
   * Simple example.
   * Every monday at 1am.
   */

  '0 0 1 * * 1': () => {
    // Add your own logic here (eg. send a queue of email, create a database backup, etc.).
  },
};

Database ORM customization

• Path — ./config/functions/bookshelf.js.
• Path — ./config/functions/mongoose.js.

When present, they are loaded to let you customize your database connection instance, for example for adding some plugin, customizing parameters, etc.

:::: tabs

::: tab Mongoose

As an example, for using the mongoose-simple-random plugin for MongoDB, you can register it like this:

Path — ./config/functions/mongoose.js.

'use strict';

const random = require('mongoose-simple-random');

module.exports = (mongoose, connection) => {
  mongoose.plugin(random);
};

:::

::: tab Bookshelf

Another example would be using the bookshelf-uuid plugin for MySQL, you can register it like this:

Path — ./config/functions/bookshelf.js.

'use strict';

module.exports = (bookshelf, connection) => {
  bookshelf.plugin(require('bookshelf-uuid'));
};

:::

::::

Environments

Most of the application's configurations are defined by environment. It means that you can specify settings for each environment (development, production, test, etc.).

::: tip You can access the config of the current environment through strapi.config.currentEnvironment. :::

Database

Path — ./config/environments/**/database.json.

:::: tabs

::: tab Bookshelf

• defaultConnection (string): Connection by default for models which are not related to a specific connection. Default value: default.
• connections List of all available connections.
  • default
    • connector (string): Connector used by the current connection. Will be bookshelf.
    • settings Useful for external session stores such as Redis.
      • client (string): Database client to create the connection. sqlite or postgres or mysql.
      • host (string): Database host name. Default value: localhost.
      • port (integer): Database port.
      • database (string): Database name.
      • username (string): Username used to establish the connection.
      • password (string): Password used to establish the connection.
      • options (object): List of additional options used by the connector.
      • timezone (string): Set the default behavior for local time. Default value: utc Timezone options.
      • schema (string): Set the default database schema. Used only for Postgres DB
      • ssl (boolean): For ssl database connection.
    • options Options used for database connection.
      • debug (boolean): Show database exchanges and errors.
      • autoMigration (boolean): To disable auto tables/columns creation for SQL database.
      • pool Options used for database connection pooling. For more information look at Knex's pool config documentation.
        • min (integer): Minimum number of connections to keep in the pool. Default value: 0.
        • max (integer): Maximum number of connections to keep in the pool. Default value: 10.
        • acquireTimeoutMillis (integer): Maximum time in milliseconds to wait for acquiring a connection from the pool. Default value: 2000 (2 seconds).
        • createTimeoutMillis (integer): Maximum time in milliseconds to wait for creating a connection to be added to the pool. Default value: 2000 (2 seconds).
        • idleTimeoutMillis (integer): Number of milliseconds to wait before destroying idle connections. Default value: 30000 (30 seconds).
        • reapIntervalMillis (integer): How often to check for idle connections in milliseconds. Default value: 1000 (1 second).
        • createRetryIntervalMillis (integer): How long to idle after a failed create before trying again in milliseconds. Default value: 200.

:::

::: tab Mongoose

• defaultConnection (string): Connection by default for models which are not related to a specific connection. Default value: default.
• connections List of all available connections.
  • default
    • connector (string): Connector used by the current connection. Will be mongoose.
    • settings Useful for external session stores such as Redis.
      • client (string): Database client to create the connection. Will be mongo.
      • host (string): Database host name. Default value: localhost.
      • port (integer): Database port. Default value: 27017.
      • database (string): Database name.
      • username (string): Username used to establish the connection.
      • password (string): Password used to establish the connection.
    • options Options used for database connection.
      • ssl (boolean): For ssl database connection.
      • debug (boolean): Show database exchanges and errors.
      • authenticationDatabase (string): Connect with authentication.

:::

::::

Example

Path — ./config/environments/**/database.json.

:::: tabs

::: tab Postgres

{
  "defaultConnection": "default",
  "connections": {
    "default": {
      "connector": "bookshelf",
      "settings": {
        "client": "postgres",
        "host": "localhost",
        "port": 5432,
        "username": "${process.env.USERNAME}",
        "password": "${process.env.PASSWORD}",
        "database": "strapi",
        "schema": "public"
      },
      "options": {
        "debug": true
      }
    }
  }
}

:::

::: tab MySQL

{
  "defaultConnection": "default",
  "connections": {
    "default": {
      "connector": "bookshelf",
      "settings": {
        "client": "mysql",
        "host": "localhost",
        "port": 5432,
        "username": "strapi",
        "password": "root",
        "database": "strapi"
      },
      "options": {}
    }
  }
}

:::

::: tab SQLite

{
  "defaultConnection": "default",
  "connections": {
    "default": {
      "connector": "bookshelf",
      "settings": {
        "client": "sqlite",
        "filename": ".tmp/data.db"
      },
      "options": {
        "useNullAsDefault": true
      }
    }
  }
}

:::

::: tab Mongo

{
  "defaultConnection": "default",
  "connections": {
    "default": {
      "connector": "mongoose",
      "settings": {
        "client": "mongo",
        "host": "localhost",
        "port": 27017,
        "database": "strapi",
        "username": "",
        "password": ""
      },
      "options": {
        "authenticationDatabase": "",
        "ssl": true
      }
    }
  }
}

:::

::::

::: tip Please refer to the dynamic configurations section to use global environment variable to configure the databases. :::

::: tip Take a look at the database's guide for more details. :::

Request

Path — ./config/environments/**/request.json.

• session
  • enabled (boolean): Enable or disable sessions. Default value: false.
  • client (string): Client used to persist sessions. Default value: redis.
  • settings
    • host (string): Client host name. Default value: localhost.
    • port (integer): Client port. Default value: 6379.
    • database(integer)|String - Client database name. Default value: 10.
    • password (string): Client password. Default value: ``.
• logger
  • level (string): Default log level. Default value: debug.
  • exposeInContext (boolean): Expose logger in context so it can be used through strapi.log.info(‘my log’). Default value: true.
  • requests (boolean): Enable or disable requests logs. Default value: false.
• parser
  • enabled(boolean): Enable or disable parser. Default value: true.
  • multipart (boolean): Enable or disable multipart bodies parsing. Default value: true.

::: tip The session doesn't work with mongo as a client. The package that we should use is broken for now. :::

Response

Path — ./config/environments/**/response.json.

• gzip
  • enabled (boolean): Enable or not GZIP response compression.
• responseTime
  • enabled (boolean): Enable or not X-Response-Time header to response. Default value: false.
• poweredBy
  • enabled (boolean): Enable or not X-Powered-By header to response. Default value: true.
  • value (string): The value of the header. Default value: Strapi <strapi.io>

Security

Path — ./config/environments/**/security.json.

• csp
  • enabled (boolean): Enable or disable CSP to avoid Cross Site Scripting (XSS) and data injection attacks.
• p3p
  • enabled (boolean): Enable or disable p3p.
• hsts
  • enabled (boolean): Enable or disable HSTS.
  • maxAge (integer): Number of seconds HSTS is in effect. Default value: 31536000.
  • includeSubDomains (boolean): Applies HSTS to all subdomains of the host. Default value: true.
• xframe
  • enabled (boolean): Enable or disable X-FRAME-OPTIONS headers in response.
  • value (string): The value for the header, e.g. DENY, SAMEORIGIN or ALLOW-FROM uri. Default value: SAMEORIGIN.
• xss
  • enabled (boolean): Enable or disable XSS to prevent Cross Site Scripting (XSS) attacks in older IE browsers (IE8).
• cors
  • enabled (boolean): Enable or disable CORS to prevent your server to be requested from another domain.
  • origin (string): Allowed URLs (http://example1.com, http://example2.com or allows everyone *). Default value: http://localhost.
  • expose (array): Configures the Access-Control-Expose-Headers CORS header. If not specified, no custom headers are exposed. Default value: ["WWW-Authenticate", "Server-Authorization"].
  • maxAge (integer): Configures the Access-Control-Max-Age CORS header. Default value: 31536000.
  • credentials (boolean): Configures the Access-Control-Allow-Credentials CORS header. Default value: true.
  • methods (array)|String - Configures the Access-Control-Allow-Methods CORS header. Default value: ["GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS", "HEAD"].
  • headers (array): Configures the Access-Control-Allow-Headers CORS header. If not specified, defaults to reflecting the headers specified in the request's Access-Control-Request-Headers header. Default value: ["Content-Type", "Authorization", "X-Frame-Options"].
• ip
  • enabled (boolean): Enable or disable IP blocker. Default value: false.
  • whiteList (array): Whitelisted IPs. Default value: [].
  • blackList (array): Blacklisted IPs. Default value: [].

Server

Path — ./config/environments/**/server.json.

• host (string): Host name. Default value: localhost.
• port (integer): Port on which the server should be running. Default value: 1337.
• emitErrors (boolean): Enable errors to be emitted to koa when they happen in order to attach custom logic or use error reporting services.
• proxy
  • enabled (boolean): Enable proxy support such as Apache or Nginx. Default value: false.
  • ssl (boolean): Enable proxy SSL support
  • host (string): Host name your proxy service uses for Strapi.
  • port (integer): Port that your proxy service accepts connections on.
• cron
  • enabled (boolean): Enable or disable CRON tasks to schedule jobs at specific dates. Default value: false.
• admin
  • autoOpen (boolean): Enable or disabled administration opening on start (default: true)
  • path (string): Allow to change the URL to access the admin (default: /admin).
  • watchIgnoreFiles (array): Add custom files that should not be watched during development. See more here (property ignored). Default value: []
  • build
    • backend (string): URL that the admin panel and plugins will request (default: http://localhost:1337).

Example

Path — ./config/environments/**/server.json.

As an example using this configuration with Nginx your server would respond to https://example.com:8443 instead of http://localhost:1337

Note: you will need to configure Nginx or Apache as a proxy before configuring this example.

{
  "host": "localhost",
  "port": 1337,
  "proxy": {
    "enabled": true,
    "ssl": true,
    "host": "example.com",
    "port": 8443
  },
  "cron": {
    "enabled": true
  }
}

Dynamic configurations

For security reasons, sometimes it's better to set variables through the server environment. It's also useful to push dynamics values into configurations files. To enable this feature into JSON files, Strapi embraces a JSON-file interpreter into his core to allow dynamic value in the JSON configurations files.

Syntax

The syntax is inspired by the template literals ES2015 specifications. These dynamic values are indicated by the Dollar sign and curly braces (${expression}).

Usage

In any JSON configurations files in your project, you can inject dynamic values like this:

Path — ./config/environments/production/database.json.

{
  "defaultConnection": "default",
  "connections": {
    "default": {
      "connector": "mongoose",
      "settings": {
        "client": "mongo",
        "uri": "${process.env.DATABASE_URI || ''}",
        "host": "${process.env.DATABASE_HOST || '127.0.0.1'}",
        "port": "${process.env.DATABASE_PORT || 27017}",
        "database": "${process.env.DATABASE_NAME || 'production'}",
        "username": "${process.env.DATABASE_USERNAME || ''}",
        "password": "${process.env.DATABASE_PASSWORD || ''}"
      },
      "options": {}
    }
  }
}

::: tip You can't execute functions inside the curly braces. Only strings are allowed. :::

Configuration in database

Configuration files are not multi server friendly. So we created a data store for config you will want to update in production.

Get settings

• environment (string): Sets the environment you want to store the data in. By default it's current environment (can be an empty string if your config is environment agnostic).
• type (string): Sets if your config is for an api, plugin or core. By default it's core.
• name (string): You have to set the plugin or api name if type is api or plugin.
• key (string, required): The name of the key you want to store.

// strapi.store(object).get(object);

// create reusable plugin store variable
const pluginStore = strapi.store({
  environment: strapi.config.environment,
  type: 'plugin',
  name: 'users-permissions',
});

await pluginStore.get({ key: 'grant' });

Set settings

• value (any, required): The value you want to store.

// strapi.store(object).set(object);

// create reusable plugin store variable
const pluginStore = strapi.store({
  environment: strapi.config.environment,
  type: 'plugin',
  name: 'users-permissions'
});

await pluginStore.set({
  key: 'grant',
  value: {
    ...
  }
});