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express-unless
Advanced tools
Readme
Conditionally skip a middleware when a condition is met.
npm i express-unless --save
With existing middlewares:
var { unless } = require("express-unless");
var static = express.static(__dirname + "/public");
static.unless = unless;
app.use(static.unless({ method: "OPTIONS" }));
If you are authoring a middleware you can support unless as follow:
var { unless } = require("express-unless");
module.exports = function (middlewareOptions) {
var mymid = function (req, res, next) {};
mymid.unless = unless;
return mymid;
};
method
it could be an string or an array of strings. If the request method match the middleware will not run.path
it could be an string, a regexp or an array of any of those. It also could be an array of object which is url and methods key-pairs. If the request path or path and method match, the middleware will not run. Check Examples for usage.ext
it could be an string or an array of strings. If the request path ends with one of these extensions the middleware will not run.custom
it must be a function that accepts req
and returns true
/ false
. If the function returns true for the given request, the middleware will not run.useOriginalUrl
it should be true
or false
, default is true
. if false, path
will match against req.url
instead of req.originalUrl
. Please refer to Express API for the difference between req.url
and req.originalUrl
.Require authentication for every request unless the path is index.html.
app.use(
requiresAuth.unless({
path: ["/index.html", { url: "/", methods: ["GET", "PUT"] }],
})
);
Avoid a fstat for request to routes doesnt end with a given extension.
app.use(
static.unless(function (req) {
var ext = url.parse(req.originalUrl).pathname.substr(-4);
return !~[".jpg", ".html", ".css", ".js"].indexOf(ext);
})
);
MIT 2014 - Jose Romaniello
FAQs
Conditionally add a middleware to express with some common patterns.
The npm package express-unless receives a total of 585,138 weekly downloads. As such, express-unless popularity was classified as popular.
We found that express-unless 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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