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Node.js version of a radix tree usable for routers or url path based storage.
Designed for usage in a router. Supports static paths with and without parameters/catchalls
npm install radix-tree
const Tree = require('radix-tree').Tree
const instance = new Tree()
instance.add('/my_path', 'data')
console.log(instance.find('/my_path').data) // will output "data"
The second parameter in Tree.add()
can be anything, a string, a function or an object. The stored path, data and contained parameters will be returned via Tree.find()
.
instance.remove('/my_path')
Will remove /my_path
from the tree. Removing deeper paths like
instance.add('/my_path')
instance.add('/my_path/sub_path')
instance.remove('/my_path/sub_path') // will only remove /sub_path
Its also possible to clear all routes at once.
instance.removeAll()
With version 0.2.0 routes are internally sorted by priority and no longer handled FIFO, routes with many childs have a higher priority and are scanned earlier.
Adding first /users
and then /cart/add
and /cart/remove
will result in reordering of the children and place cart before users.Expl
(3) /
(2) cart/
(1) add
(1) remove
(1) users
A static route can be any type of endpoint of a service, valid examples are:
/any_cool_file.html
/api/endpoint
/users/testuser/avatar.jpg
Static routes are the easiest to and fastest to lookup.
Parameters are dynamic parts of a url and terminated either by the end of the passed path or a /
. A usage might be for a simple REST-API.
/api/users/:userId
/cms/:pageName
Tree.find()
will contain now the params
key with all found parameters and their corresponding values.
Catchalls are a special type of parameters, they will match everything and only be terminated by the end of the passed path. Usage could be in a router to catch deep paths like a CDN or a full API, without caring for the structure.
/api/user/*api
/images/*path
Tree.find()
will contain now the params
key with all found parameters and their corresponding values.
FAQs
Node.js version of a radix tree usable for routers or url path based storage.
We found that radix-tree 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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