Chapter 218. Mustache Component

mustache:templateName[?options]

mustache:templateName[?options]

Where templateName is the classpath-local URI of the template to invoke; or the complete URL of the remote template (eg: file://folder/myfile.mustache).

You can append query options to the URI in the following format, ?option=value&option=value&…​

The Mustache component supports 2 options which are listed below.

The Mustache endpoint is configured using URI syntax:

mustache:resourceUri

mustache:resourceUri

with the following path and query parameters:

Camel will provide exchange information in the Mustache context (just a Map). The Exchange is transferred as:

Camel provides two headers by which you can define a different resource location for a template or the template content itself. If any of these headers is set then Camel uses this over the endpoint configured resource. This allows you to provide a dynamic template at runtime.

For example you could use something like:

from("activemq:My.Queue").
to("mustache:com/acme/MyResponse.mustache");

from("activemq:My.Queue").
to("mustache:com/acme/MyResponse.mustache");

To use a Mustache template to formulate a response for a message for InOut message exchanges (where there is a JMSReplyTo header).

If you want to use InOnly and consume the message and send it to another destination you could use:

from("activemq:My.Queue").
to("mustache:com/acme/MyResponse.mustache").
to("activemq:Another.Queue");

from("activemq:My.Queue").
to("mustache:com/acme/MyResponse.mustache").
to("activemq:Another.Queue");

It’s possible to specify what template the component should use dynamically via a header, so for example:

from("direct:in").
setHeader(MustacheConstants.MUSTACHE_RESOURCE_URI).constant("path/to/my/template.mustache").
to("mustache:dummy");

from("direct:in").
setHeader(MustacheConstants.MUSTACHE_RESOURCE_URI).constant("path/to/my/template.mustache").
to("mustache:dummy");

In this sample we want to use Mustache templating for an order confirmation email. The email template is laid out in Mustache as:

Dear {{headers.lastName}}}, {{headers.firstName}}

Thanks for the order of {{headers.item}}.

Regards Camel Riders Bookstore
{{body}}

Dear {{headers.lastName}}}, {{headers.firstName}}

Thanks for the order of {{headers.item}}.

Regards Camel Riders Bookstore
{{body}}