Express is a commonly-used package which adds a few key concepts on top of
a Node http.Server. Notably, it defines a standard
contract for "middleware" and "routing". Our wrapper around express is the fluid.express
component (see below).
Many of the handler and middleware grades in this package work directly with
an Express request object (see their documentation). The Express request object
is itself an extension of node's http.incomingMessage.
Many of the handler and middleware grades in this package work directly with the
response object provided by Express. The Express response object is itself
an extension of node's http.ServerResponse.
This grade is a wrapper for the Express app itself. Although you can use
routers and middleware written using this package without using this grade (see the router and
middleware documentation for details), in most cases your fluid.express.router and
fluid.express.middleware instances will perform their work within an instance of fluid.express.
To use this grade, you will generally need to wire in at least one fluid.express.router instance.
You may also need one or more fluid.express.middleware instances.
| Option | Type | Description |
|---|---|---|
port (required) |
{Number} |
The port express should listen on. |
expressAppOptions |
{Object} |
Configuration options to be passed on to express via app.set. See the Express documentation for supported options. By default, the port is set to port (see above), and the default options for JSON.stringify as used within express itself are set to null and 2. |