Module io.helidon.webserver.cors

Package io.helidon.webserver.cors

Class CorsEnabledServiceHelper

java.lang.Object

io.helidon.webserver.cors.CorsEnabledServiceHelper

public class CorsEnabledServiceHelper
extends Object

Allows services (including Helidon built-in services) to register CORS support easily.

Callers use either create(String) or create(String, CrossOriginConfig) to initialize the helper for a service. The helper uses the CrossOriginConfig instance to set up CORS behavior for the service. If the caller passes a null CrossOriginConfig or invokes the other variant of create then the sets up CORS using a default configuration:

     enabled: true
     allow-origins: ["*"]
     allow-methods: ["GET", "HEAD", "OPTIONS"]
     allow-headers: ["*"]
     allow-credentials: false
     max-age: 3600
     

All of those settings except for allow-methods are the defaults for CrossOriginConfig.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CORS_CONFIG_KEY	Conventional configuration key for CORS set-up; used for built-in services.

Method Summary

Modifier and Type	Method	Description
static CorsEnabledServiceHelper	create(String serviceName)	Creates a new helper based on a default CORS config for services.
static CorsEnabledServiceHelper	create(String serviceName, CrossOriginConfig crossOriginConfig)	Creates a new helper based on the provided config.
Handler	processor()	Constructs a Handler for performing CORS processing, according to the previously-provided Config.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

CORS_CONFIG_KEY

public static final String CORS_CONFIG_KEY

Conventional configuration key for CORS set-up; used for built-in services.

See Also:

• Constant Field Values

Method Details

create

public static CorsEnabledServiceHelper create(String serviceName,
 CrossOriginConfig crossOriginConfig)

Creates a new helper based on the provided config.

Parameters:

serviceName - name of the service (for logging)

crossOriginConfig - CrossOriginConfig containing CORS set-up; if null, a default is used

Returns:

new helper initialized with the CORS configuration

create

public static CorsEnabledServiceHelper create(String serviceName)

Creates a new helper based on a default CORS config for services.

Parameters:

serviceName - name of the service (for logging)

Returns:

new helper initialized with a default CORS configuration

processor

public Handler processor()

Constructs a Handler for performing CORS processing, according to the previously-provided Config.

Returns:

Handler for CORS processing