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json-middleware
Advanced tools
Middleare component to send responses as JSON when requested as JSON
Automatically send model data as JSON instead of passing to the view renderer when the user agent sends an Accept
type of application/json
or adds a json
parameter to the query string.
Installing through npm is as easy as:
npm install json-middleware
To plug the middleware into a Connect or Express server:
var app = require('express')();
app.use(require('json-middleware').middleware());
When the middleware component runs, an isJson
property is attached to the request. The value of the isJson
property
will either be true
when the Accept
header is set to application/json
, or it will be set to whatever the json
query string parameter value was.
To send a response as JSON instead of the usual view renderer, just call res.render
as normal:
app.get('/', function(req, res) {
res.render("index", myDataObject);
});
In this case, when the response is to be rendered as JSON, myDataObject
will be sent as a JSON response instead of
being passed to whatever view engine has been set up (eg: hogan-middleware)
app.use(require('json-middleware').middleware());
app.get('/', function(req, res) {
console.log(req.isJson);
res.render("index", req.session); // render the index view with all data from the session
});
When accessing /
, the index
view is rendered with data held in the req.session
object. Accessing /?json=on
result in the req.session
object being sent to the client as JSON and the console will print on
.
Accessing /
with the Accept
request header set to application/json
will result in the console printing true
and the req.session
object being sent to the client as JSON.
Only the req.render
function is altered, all other utilities for responding to requests (eg: req.send
) are left
untouched.
Released under the MIT license. In short usage is free for any purpose, with the usual lack of warranties either explicit or implied.
FAQs
Middleare component to send responses as JSON when requested as JSON
The npm package json-middleware receives a total of 16 weekly downloads. As such, json-middleware popularity was classified as not popular.
We found that json-middleware demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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