web | performance HTTP router based on the Go standard library | Router library
kandi X-RAY | web Summary
kandi X-RAY | web Summary
A high-performance HTTP router based on the Go standard library and has zero allocation of memory during routes matching. I used a simplified compressed trie tree to store all the routes under an HTTP method and an array (instead of a hash map that's often used by other libs) to map an HTTP method to its route tree as we don't have to use the entire method name (e.g. GET, POST, PUT, etc.) to calculate the hash values used as the indices of the route trees, By now, there're only 8 request methods in the HTTP protocol and the length of the shortest different substring of them is 2 whereas we just need to use 2 letters from each method name to get the hash value. The hash function I used to do this simply modulos the sum of the 2 letters' ASCII codes by 18. 18 is the smallest number I've found that works. Here's the pseudocode. Besides, I used three different pools to reduce the amount of memory allocation. The first pool is a chunksPool that helps parse the request path, the second one is a paramsPool that stores the parameters decoded from the named url for each request, and the last one is definitely the contextPool from which we can obtain a context controller that goes through the entire process of a request. These pools are defined in pool.go. You've probably found that I also used []byte instead of string as both the type of the parameters from named urls and the type of chunks parsed from request paths. I'm not sure but it seems that raw bytes works better than strings when used to implement a pool. Therefore, it cannot be avoided to convert the string typed path to raw bytes, here's the way I've learned to do the convertion without copying. And do it reversely. Those're the reasons why this library is memory-saving and fast.
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QUESTION
I have a little question about updating just one attribute and not all like in this code.
...ANSWER
Answered 2022-Feb-12 at 09:21It looks like you are using sequelize. In sequelize to update only one field you would pass an object with only one field into the .update method as it can be seen in the following snippet.
QUESTION
I want to redirect the user after successful login to the home page, But nothing works.
This is my Login.js component
Also, I could not get parameter URL in class-based components and I was forced to use functional component and I use let params=useParams();
to get URL parameters
ANSWER
Answered 2021-Dec-26 at 08:50The useHistory
hook is no longer present with React Router 6.
Try to use the useNavigate
hook and convert the function to use async / await
:
QUESTION
After reading Route layouts I wanted to wrap some elements of my routes with a layout, but leave others without a layout.
Here is the example:
App.jsx
...ANSWER
Answered 2021-Dec-05 at 17:46you have to render an for inside your layout element to specify where the active child route should be mounted.
QUESTION
Comunity
I have a list of bookings (component: BookingListItem), which I render in my component "BookingView". Now I want to show the booking details when I click on one of these booking items. For this, I created a streched link, like that:
...ANSWER
Answered 2021-Dec-04 at 11:54Try
QUESTION
I'm having an issue with a linting error in a vue.js project. The error that I get looks like this:
...ANSWER
Answered 2021-Nov-30 at 20:40Looks like the reason for the dependency cycle here is when you are importing router setup in the store module, and the router in turn imports the whole store. It's okay to use store in router, but try to move routing/redirect logic (these lines):
QUESTION
I have two view components.
The first component, productList.vue,
renders the list of products. Each listed product routes you to the product info(second view).
ANSWER
Answered 2021-Nov-18 at 07:04add id param to router like this: product/:id
check data before each
QUESTION
I am getting this error in my react application because I am using a router inside a router. I have to use the second router in Navbar.js to use . I am using react router in 2 different files. If I remove one of them, it will throw an error saying
is not defined
This is my Code: App.js
...ANSWER
Answered 2021-Nov-06 at 08:09you should not use other Router in the Navbar It seems you need to use NavLink in Navbar
QUESTION
I have been stuck on this issue for hours now. I am using Vue3
I am trying to use a beforeRouterEnter
guard to check what user role is currently signed in, and based on that re-direct the user to appropiate route.
After submitting the login form (From login page) the userRoleId
is stored in the vuex, and i get re-directed to a homepage. The homepage has the following script:
ANSWER
Answered 2021-Oct-19 at 17:15It's a mistake to call next
inside next
callback. The navigation has already been finished at that moment, this should have been a redirect with router.push
instead, and this kind of logic belongs to component mounted
(next
callback runs after it) rather than router guard.
There should be no redirects here because they are unnecessary. A store is global and can be imported directly rather then accessed on vm
.
It should be:
QUESTION
How would you go about dealing with nested dynamic routes and using Next.js Link component?
Say I have 2 file paths:
...ANSWER
Answered 2021-Sep-09 at 04:01Starting with a simple link in index.js
QUESTION
Using Angular 12+
Our old system had ASPX pages and different query string values. Our new system is Angular-based so the ASPX page links/query string no longer exist. Is there a way to extend the Router so that when an ASPX page request comes, it is redirected to a translated set of query params and the correct Angular route? There would be a large number of permutations so we need to run the URL thru a logical re-writer, not just a Router map.
For now, I have a 404Component that looks at the URL, then decides the new URL, and does a redirect.
Customers have the old ASPX pages bookmarked so need to be supported.
...ANSWER
Answered 2021-Aug-27 at 08:32You need a implementation based on CanActivate
Guard
Create a Redirect service which will determine URL to redirect and return URL final destination URL (sample implementation below)
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