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Version: 3.10.0

Options

How to define options

There are multiple methods for defining Mocks Server configuration:

tip

Read the previous chapter for further info about how to define configuration using different methods.

Option names

The name of the options in this page use the "dot notation". But option names may differ depending on the chosen method to set them. Here you have a brief example of how the same option (mock.routes.delay) must be defined when using different methods:

// Set mock.routes.delay option

const server = new Core({
mock: {
routes: {
delay: 3000,
},
},
});
info

Convert the "dot notation" into an object when setting programmatic configuration.

Core options

These options are provided by the core of Mocks Server, so they can be used in any Mocks Server distribution.

config.allowUnknownArguments

(Boolean): When set to true, it allows to define unknown command line arguments. Default is false. It can be defined in any source.

Examples
config:
allowUnknownArguments: true

config.fileSearchPlaces

(Array of Strings): Paths to search for the configuration file. Default is described in the configuration methods chapter. It can be defined in any source, except configuration files.

Examples
npm run mocks -- --config.fileSearchPlaces path/to/my-config.js path/to/my-config.yml

config.readArguments

(Boolean): If false, it disables the ability of defining options using command line arguments. Default is true. It can be defined only using programmatic configuration.

Examples
const server = new Core({
config: {
readArguments: false,
},
});

config.readEnvironment

(Boolean): If false, it disables the ability of defining options using environment variables. Default is true. It can be defined using programmatic configuration or command line arguments.

Examples
npm run mocks -- --no-config.readEnvironment

config.readFile

(Boolean): If false, it disables the ability of reading configuration file. Default is true. Obviously, it would be ignored if it is defined in the configuration file.

Examples
npm run mocks -- --no-config.readFile

files.enabled

(String): Allows to disable loading routes and collections from files, which may be useful when used programmatically. Default is true.

Examples
files:
enabled: false

files.path

(String): Path to the folder containing collections and routes to be loaded by the server. Default is mocks. When relative, it is resolved from the current process.cwd().

Examples
files:
path: custom-folder

files.watch

(Boolean): Watch the /mocks folder and restart server on changes. Default is true.

Examples
files:
watch: false

files.babelRegister.enabled

(Boolean): Enables Babel compilation for files inside the /mocks folder.

Examples
files:
babelRegister:
enabled: true

files.babelRegister.options

(Object): Options for @babel/register when babelRegister is enabled. Properties in this object are passed directly to @babel/register as options, so refer to its documentation for further info. You can also see some usage examples in the "using Babel" chapter of this docs.

Examples
module.exports = {
files: {
babelRegister: {
enabled: true,
options: {
only: (filePath) => {
return filePath.includes("/mocks/") || filePath.includes("/my-folder-to-include/");
},
},
},
},
};

log

(String): Logs level. Can be one of silly, debug, verbose, info, warn, error or silent.

Examples
log: "silly"

mock.collections.selected

(String): Collection to use when the server is started.

Examples
mock:
collections:
selected: "my-collection"

mock.routes.delay

(Number): Responses delay time in milliseconds. This is a global setting that can be overridden in specific routes or route variants using their options.

Examples
mock:
routes:
delay: 1000

plugins.register

(Array of Plugin): Array of Plugins, defined as described in the plugins chapter.

Example
import FooPlugin from "./FooPlugin";

const server = new Core({
plugins: {
register: [
FooPlugin,
]
}
});

server.cors.enabled

(Boolean): Built-in CORS middleware. Default is true. Use false to disable it.

Examples
server:
cors:
enabled: false

server.cors.options

(Object): Options for the built-in CORS middleware. By default, it sets the preflightContinue property as false, which means that Mocks Server will respond to all OPTIONS requests with a 204 status and correspondent CORS headers. If you want to handle OPTIONS requests by yourself, you should set that property to true.

Examples
server:
cors:
options:
preflightContinue: true

server.host

(String): Host for the server. Default is 0.0.0.0 (Reachable to all IPv4 addresses on the local machine).

Examples
server:
host: "192.168.1.100"

server.https.enabled

(Boolean): Enables HTTPS protocol in the mock server. Default is false

Examples
server:
https:
enabled: true
caution

When enabling the server.https.enabled option, it is also needed to provide HTTPS certificate and key using the server.https.cert and server.https.key options. For further info read the "Enabling HTTPS" guide.

server.https.cert

(String): Path to a valid SSL/TLS certificate to be used when HTTPS is enabled. It must be relative to the current process.cwd() or absolute. This option has no effect when server.https.enabled is false.

Examples
server:
https:
cert: "certs/cert.pem"

server.https.key

(String): Path to a valid SSL/TLS certificate key to be used when HTTPS is enabled. It must be relative to the current process.cwd() or absolute. This option has no effect when server.https.enabled is false.

Examples
server:
https:
key: "certs/key.pem"

server.jsonBodyParser.enabled

(Boolean): If false, it disables the json body-parser built-in Express middleware. Default is true.

Examples
server:
jsonBodyParser:
enabled: false

server.jsonBodyParser.options

(Object): Options for the json body-parser built-in Express middleware.

Examples
server:
jsonBodyParser:
options:
limit: "200kb"

server.port

(Number): Port number for Mocks Server to be listening at. Default is 3100.

Examples
server:
port: 3500

server.urlEncodedBodyParser.enabled

(Boolean): If false, it disables the urlencoded body-parser built-in Express middleware. Default is true.

Examples
server:
urlEncodedBodyParser:
enabled: false

server.urlEncodedBodyParser.options

(Object): Options for the urlencoded body-parser built-in Express middleware.

Examples
server:
urlEncodedBodyParser:
options:
limit: "200kb"

variantHandlers.register

(Array of Variant Handlers): Array of Variant Handlers to be added. Other variant handlers are not removed.

Example
import FooVariantHandler from "./FooVariantHandler";

const server = new Core({
variantHandlers: {
register: [
FooVariantHandler,
]
}
});

Plugins options

Each plugin can add its own options when it is installed. These options can also be defined and changed using the same methods as the core options. Note that all plugins options must be defined under the plugins namespace, and all options of a plugin must be defined under its own plugin id namespace (plugins.[plugin-id].[option])

plugins.inquirerCli.enabled

(Boolean): Start interactive CLI plugin or not. Default is true.

Examples
plugins:
inquirerCli:
enabled: false

plugins.inquirerCli.emojis

(Boolean): Defines whether the inquirer CLI uses emojis or not. Default is true.

Examples
plugins:
inquirerCli:
emojis: false

plugins.adminApi.host

(String): Host for the administration REST API. Default is 0.0.0.0 (Reachable to all IPv4 addresses on the local machine).

Examples
plugins:
adminApi:
host: "192.168.1.100"

plugins.adminApi.https.enabled

(Boolean): Enables HTTPS protocol in the admin API server. Default is false

Examples
plugins:
adminApi:
https:
enabled: true
caution

When enabling the plugin.adminApi.https.enabled option, it is also needed to provide HTTPS certificate and key using the plugin.adminApi.https.cert and plugin.adminApi.https.key options. For further info read the "Enabling HTTPS" guide.

plugins.adminApi.https.cert

(String): Path to a valid SSL/TLS certificate to be used when HTTPS is enabled in the adminApi plugin. It must be relative to the current process.cwd() or absolute. This option has no effect when server.https.enabled is false.

Examples
plugins:
adminApi:
https:
cert: "certs/cert.pem"

plugins.adminApi.https.key

(String): Path to a valid SSL/TLS certificate key to be used when HTTPS is enabled. It must be relative to the current process.cwd() or absolute. This option has no effect when plugins.adminApi.https.enabled is false.

Examples
plugins:
adminApi:
https:
key: "certs/key.pem"

plugins.adminApi.port

(Number): Port for the administration REST API. Default is 3110.

Examples
plugins:
adminApi:
port: 3510
info

These extra options are added by the @mocks-server/plugin-admin-api and the @mocks-server/plugin-inquirer-cli plugins, which are both included in the Mocks Server main distribution.

For another plugins options, please refer to their own documentation.