Platform HTTP

Since Camel Quarkus0.3.0 JVMsupported Nativesupported

This extension allows for creating HTTP endpoints for consuming HTTP requests.

It is built on top of Eclipse Vert.x Web service provided by the quarkus-vertx-web extension.

What’s inside

Please refer to the above link for usage and configuration details.

Maven coordinates

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-platform-http</artifactId>
</dependency>

Check the User guide for more information about writing Camel Quarkus applications.

Usage

Basic Usage

Serve all HTTP methods on the /hello endpoint:

from("platform-http:/hello").setBody(simple("Hello ${header.name}"));

Serve only GET requests on the /hello endpoint:

from("platform-http:/hello?httpMethodRestrict=GET").setBody(simple("Hello ${header.name}"));

Using platform-http via Camel REST DSL

To be able to use Camel REST DSL with the platform-http component, add camel-quarkus-rest in addition to camel-quarkus-platform-http to your pom.xml:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-rest</artifactId>
</dependency>

Then you can use the Camel REST DSL:

rest()
    .get("/my-get-endpoint")
        .route()
        .setBody(constant("Hello from /my-get-endpoint"))
        .endRest()
    .post("/my-post-endpoint")
        .route()
        .setBody(constant("Hello from /my-post-endpoint"))
        .endRest();

Handling multipart/form-data file uploads

If you want Camel Quarkus to attach uploaded files to Camel messages for you, you need to add the following optional dependency to your pom.xml:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-attachments</artifactId>
</dependency>

You can restrict the uploads to certain file extensions by white listing them:

from("platform-http:/upload/multipart?fileNameExtWhitelist=adoc,txt&httpMethodRestrict=POST")
    .to("log:multipart")
    .process(e -> {
        final AttachmentMessage am = e.getMessage(AttachmentMessage.class);
        if (am.hasAttachments()) {
            am.getAttachments().forEach((fileName, dataHandler) -> {
                try (InputStream in = dataHandler.getInputStream()) {
                    // do something with the input stream
                } catch (IOException ioe) {
                    throw new RuntimeException(ioe);
                }
            });
        }
    });

Also check the quarkus.http.body.* configuration options in Quarkus documentation, esp. quarkus.http.body.handle-file-uploads, quarkus.http.body.uploads-directory and quarkus.http.body.delete-uploaded-files-on-end.

Additional Camel Quarkus configuration

  • Check the Character encodings section of the Native mode guide if you expect your application to send or receive requests using non-default encodings.

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