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koa-unless
Advanced tools
Readme
Conditionally skip a middleware when a condition is met.
npm i koa-unless --save
With existing middlewares:
var unless = require('koa-unless');
var serve = require('koa-static');
var static = serve(__dirname + '/public');
static.unless = unless;
app.use(static.unless({ method: 'OPTIONS' }));
If you are authoring a middleware you can support unless as follow:
module.exports = function () {
var mymid = function(ctx, next) {
// Do something
};
mymid.unless = require('koa-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. If the request path match, the middleware will not run.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 returns true
/ false
. If the function returns true for the given request, ithe middleware will not run. The function will have access to Koa's context via this
useOriginalUrl
it should be true
or false
, default is true
. if false, path
will match against ctx.url
instead of ctx.originalUrl
.Require authentication for every request unless the path is index.html.
app.use(requiresAuth.unless({ path: ['/index.html', '/'] }))
Avoid a fstat for request to routes doesnt end with a given extension.
app.use(static.unless(function () {
var ext = url.parse(this.originalUrl).pathname.substr(-4);
return !~['.jpg', '.html', '.css', '.js'].indexOf(ext);
}));
All the credits for this library goes for José F. Romaniello which created the original express version.
MIT 2015 - Jesús Rodríguez
FAQs
Conditionally add a middleware to Koa with some common patterns.
The npm package koa-unless receives a total of 32,551 weekly downloads. As such, koa-unless popularity was classified as popular.
We found that koa-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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