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Chapter 278. Options

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The REST OpenApi component supports 10 options, which are listed below.

NameDescriptionDefaultType

basePath (producer)

API basePath, for example /v2. Default is unset, if set overrides the value present in OpenApi specification.

 

String

componentName (producer)

Name of the Camel component that will perform the requests. The component must be present in Camel registry and it must implement RestProducerFactory service provider interface. If not set CLASSPATH is searched for single component that implements RestProducerFactory SPI. Can be overridden in endpoint configuration.

 

String

consumes (producer)

What payload type this component capable of consuming. Could be one type, like application/json or multiple types as application/json, application/xml; q=0.5 according to the RFC7231. This equates to the value of Accept HTTP header. If set overrides any value found in the OpenApi specification. Can be overridden in endpoint configuration

 

String

host (producer)

Scheme hostname and port to direct the HTTP requests to in the form of https://hostname:port. Can be configured at the endpoint, component or in the corresponding REST configuration in the Camel Context. If you give this component a name (e.g. petstore) that REST configuration is consulted first, rest-openapi next, and global configuration last. If set overrides any value found in the OpenApi specification, RestConfiguration. Can be overridden in endpoint configuration.

 

String

produces (producer)

What payload type this component is producing. For example application/json according to the RFC7231. This equates to the value of Content-Type HTTP header. If set overrides any value present in the OpenApi specification. Can be overridden in endpoint configuration.

 

String

specificationUri (producer)

Path to the OpenApi specification file. The scheme, host base path are taken from this specification, but these can be overridden with properties on the component or endpoint level. If not given the component tries to load openapi.json resource. Note that the host defined on the component and endpoint of this Component should contain the scheme, hostname and optionally the port in the URI syntax (i.e. https://api.example.com:8080). Can be overridden in endpoint configuration.

openapi.json

URI

sslContextParameters (security)

Customize TLS parameters used by the component. If not set defaults to the TLS parameters set in the Camel context

 

SSLContextParameters

useGlobalSslContextParameters (security)

Enable usage of global SSL context parameters.

false

boolean

basicPropertyBinding (advanced)

Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

The REST OpenApi endpoint is configured using URI syntax:

rest-openapi:specificationUri#operationId

with the following path and query parameters:

278.1. Path Parameters (2 parameters):

NameDescriptionDefaultType

specificationUri

Path to the OpenApi specification file. The scheme, host base path are taken from this specification, but these can be overridden with properties on the component or endpoint level. If not given the component tries to load openapi.json resource from the classpath. Note that the host defined on the component and endpoint of this Component should contain the scheme, hostname and optionally the port in the URI syntax (i.e. http://api.example.com:8080). Overrides component configuration. The OpenApi specification can be loaded from different sources by prefixing with file: classpath: http: https:. Support for https is limited to using the JDK installed UrlHandler, and as such it can be cumbersome to setup TLS/SSL certificates for https (such as setting a number of javax.net.ssl JVM system properties). How to do that consult the JDK documentation for UrlHandler.

openapi.json

URI

operationId

Required ID of the operation from the OpenApi specification.

 

String

278.2. Query Parameters (8 parameters):

NameDescriptionDefaultType

basePath (producer)

API basePath, for example /v2. Default is unset, if set overrides the value present in OpenApi specification and in the component configuration.

 

String

componentName (producer)

Name of the Camel component that will perform the requests. The component must be present in Camel registry and it must implement RestProducerFactory service provider interface. If not set CLASSPATH is searched for single component that implements RestProducerFactory SPI. Overrides component configuration.

 

String

consumes (producer)

What payload type this component capable of consuming. Could be one type, like application/json or multiple types as application/json, application/xml; q=0.5 according to the RFC7231. This equates to the value of Accept HTTP header. If set overrides any value found in the OpenApi specification and. in the component configuration

 

String

host (producer)

Scheme hostname and port to direct the HTTP requests to in the form of https://hostname:port. Can be configured at the endpoint, component or in the corresponding REST configuration in the Camel Context. If you give this component a name (e.g. petstore) that REST configuration is consulted first, rest-openapi next, and global configuration last. If set overrides any value found in the OpenApi specification, RestConfiguration. Overrides all other configuration.

 

String

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

produces (producer)

What payload type this component is producing. For example application/json according to the RFC7231. This equates to the value of Content-Type HTTP header. If set overrides any value present in the OpenApi specification. Overrides all other configuration.

 

String

basicPropertyBinding (advanced)

Whether the endpoint should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean

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