Wordpress

Since Camel 2.21

Both producer and consumer are supported

Camel component for Wordpress API.

Currently only the Posts and Users operations are supported.

Options

The Wordpress component supports 12 options, which are listed below.

Name Description Default Type

apiVersion (common)

The Wordpress REST API version

2

String

configuration (common)

Wordpress configuration

WordpressConfiguration

criteria (common)

The criteria to use with complex searches.

Map

force (common)

Whether to bypass trash and force deletion.

false

boolean

id (common)

The entity ID. Should be passed when the operation performed requires a specific entity, e.g. deleting a post

Integer

password (common)

Password from authorized user

String

searchCriteria (common)

Search criteria

SearchCriteria

url (common)

Required The Wordpress API URL from your site, e.g. http://myblog.com/wp-json/

String

user (common)

Authorized user to perform writing operations

String

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

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

autowiredEnabled (advanced)

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

boolean

The Wordpress endpoint is configured using URI syntax:

wordpress:operation

with the following path and query parameters:

Path Parameters (2 parameters):

Name Description Default Type

operation

Required The endpoint operation. There are 2 enums and the value can be one of: post, user

String

operationDetail

The second part of an endpoint operation. Needed only when endpoint semantic is not enough, like wordpress:post:delete. There are 1 enums and the value can be one of: delete

String

Query Parameters (12 parameters):

Name Description Default Type

apiVersion (common)

The Wordpress REST API version

2

String

criteria (common)

The criteria to use with complex searches.

Map

force (common)

Whether to bypass trash and force deletion.

false

boolean

id (common)

The entity ID. Should be passed when the operation performed requires a specific entity, e.g. deleting a post

Integer

password (common)

Password from authorized user

String

searchCriteria (common)

Search criteria

SearchCriteria

url (common)

Required The Wordpress API URL from your site, e.g. http://myblog.com/wp-json/

String

user (common)

Authorized user to perform writing operations

String

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

exceptionHandler (consumer)

To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this option is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored.

ExceptionHandler

exchangePattern (consumer)

Sets the exchange pattern when the consumer creates an exchange. There are 3 enums and the value can be one of: InOnly, InOut, InOptionalOut

ExchangePattern

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

Most of parameters needed when performing a read operation mirrors from the official API. When performing searches operations, the criteria. suffix is needed. Take the following Consumer as example:

wordpress:post?criteria.perPage=10&criteria.orderBy=author&criteria.categories=camel,dozer,json

Configuring Wordpress component

The WordpressConfiguration class can be used to set initial properties configuration to the component instead of passing it as query parameter. The following listing shows how to set the component to be used in your routes.

public void configure() {
    final WordpressConfiguration configuration = new WordpressConfiguration();
    final WordpressComponent component = new WordpressComponent();
    configuration.setApiVersion("2");
    configuration.setUrl("http://yoursite.com/wp-json/");
    component.setConfiguration(configuration);
    getContext().addComponent("wordpress", component);

    from("wordpress:post?id=1")
      .to("mock:result");
}

Consumer Example

Consumer polls from the API from time to time domain objects from Wordpress. Following, an example using the Post operation:

  • wordpress:post retrieves posts (defaults to 10 posts)

  • wordpress:post?id=1 search for a specific post

Producer Example

Producer performs write operations on Wordpress like adding a new user or update a post. To be able to write, you must have an authorized user credentials (see Authentication).

  • wordpress:post creates a new post from the org.apache.camel.component.wordpress.api.model.Post class in the message body.

  • wordpress:post?id=1 updates a post based on data org.apache.camel.component.wordpress.api.model.Post from the message body.

  • wordpress:post:delete?id=1 deletes a specific post

Authentication

Producers that perform write operations (e.g. create a new post) must have an authenticated user to do so. The standard authentication mechanism used by Wordpress is cookie. Unfortunately this method is not supported outside Wordpress environment because it’s rely on nonce internal function.

There’s some alternatives to use the Wordpress API without nonces, but requires specific plugin installations.

At this time, camel-wordpress only supports Basic Authentication (more to come). To configure it, you must install the Basic-Auth Wordpress plugin and pass the credentials to the endpoint:

from("direct:deletePost").to("wordpress:post:delete?id=9&user=ben&password=password123").to("mock:resultDelete");

It’s not recommend to use Basic Authentication in production without TLS!!

Spring Boot Auto-Configuration

When using wordpress with Spring Boot make sure to use the following Maven dependency to have support for auto configuration:

<dependency>
  <groupId>org.apache.camel.springboot</groupId>
  <artifactId>camel-wordpress-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

The component supports 13 options, which are listed below.

Name Description Default Type

camel.component.wordpress.api-version

The Wordpress REST API version.

2

String

camel.component.wordpress.autowired-enabled

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

Boolean

camel.component.wordpress.bridge-error-handler

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

Boolean

camel.component.wordpress.configuration

Wordpress configuration. The option is a org.apache.camel.component.wordpress.WordpressConfiguration type.

WordpressConfiguration

camel.component.wordpress.criteria

The criteria to use with complex searches.

Map

camel.component.wordpress.enabled

Whether to enable auto configuration of the wordpress component. This is enabled by default.

Boolean

camel.component.wordpress.force

Whether to bypass trash and force deletion.

false

Boolean

camel.component.wordpress.id

The entity ID. Should be passed when the operation performed requires a specific entity, e.g. deleting a post.

Integer

camel.component.wordpress.lazy-start-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

camel.component.wordpress.password

Password from authorized user.

String

camel.component.wordpress.search-criteria

Search criteria. The option is a org.apache.camel.component.wordpress.api.model.SearchCriteria type.

SearchCriteria

camel.component.wordpress.url

The Wordpress API URL from your site, e.g. http://myblog.com/wp-json/.

String

camel.component.wordpress.user

Authorized user to perform writing operations.

String
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