Custom-Middleware | repository holds custom and commercial middleware packages
kandi X-RAY | Custom-Middleware Summary
kandi X-RAY | Custom-Middleware Summary
Our publicly released middleware.
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QUESTION
I'm working through the Redux fundamentals tutorial. In the section on 'Writing Custom Middleware', we learn that middleware are written as a series of three nested functions like so:
...ANSWER
Answered 2021-Mar-04 at 15:58Yes, calling storeAPI.dispatch() in a middleware sends the action to the very start of the middleware pipeline. That means that if we have middlewares a->b->c->store, and b calls storeAPI.dispatch({type: "some/action"}), middleware b will see that exact same action object go through almost immediately.
Because of that, a middleware should never call storeAPI.dispatch() unconditionally, because that will cause infinite loops! This is basically the same problem as something like calling setState() unconditionally in a React component useEffect hook. The effect runs after rendering, and setState() queues up another render, so if you always set state every time, you always force a re-render, and that's an infinite loop. Same thing here.
So, any use of storeAPI.dispatch() in a middleware should be wrapped in a conditional check so that it only happens some of the time, not all of the time.
QUESTION
Why is it recommended for a middleware to be async in ASP.NET Core?
E.g. in this tutorial it is recommended to make the middleware custom and I can not understand the reason behind it.
...ANSWER
Answered 2019-Nov-28 at 18:04According to the documentation, that is by design
Reference Write custom ASP.NET Core middlewareThe middleware class must include:
- A public constructor with a parameter of type
RequestDelegate.- A public method named
InvokeorInvokeAsync. This method must:
- Return a
Task.- Accept a first parameter of type
HttpContext.
My understanding is that the pipeline has been designed to be async by default.
RequestDelegate which is the core of asp.net core's pipe line requires a Task in order to allow a high-performance, and modular HTTP request pipeline.
QUESTION
I'm using Gin-Gonic and I'm creating a custom middleware. See: https://github.com/gin-gonic/gin#custom-middleware
Is there a reason why the middlewares in the doc are written as such:
...ANSWER
Answered 2018-May-29 at 02:44You can certainly just do this if you prefer it:
QUESTION
I'm getting the error:
...ANSWER
Answered 2019-Aug-10 at 20:20Inside of the component, in the place where you call signupp function, you have mapDispatchToProps function as callback in connect function from react-redux lib, which is doing behind the hoods something like dispatch(signupp())(or maybe you are doing dispatch directly without react-redux lib). According to redux API, this dispatch function expects to receive a plain object, but your signupp() function returns a promise(as you have async inside).
To solve this problem you can simply use redux-thunk middleware. Also you can see some examples in the redux docs section about async actions.
An alternative solution could be to move fetch logic to component and then dispatch just plain object with data that you received from the request.
QUESTION
I want to use the Use() function of the Gorilla Mux package, but I cannot get it to work. It says: r.Use undefined (type *mux.Router has no field or method Use). I used almot the identitcal example from the documentation. My code looks like this.
ANSWER
Answered 2018-Mar-18 at 12:54Thanks to Ivan Velichko, I solved my problem. My package was outdated. I updated it with go get -u github.com/gorilla/mux and now it’s working. Many thanks to y’all!
QUESTION
I have the following in my app.js file server side after bodyParser
ANSWER
Answered 2018-Dec-16 at 23:19In your code you are using many modules. To isolate the problem I suggest to reduce your code to a minimal version removing everything not mandatory to enable csrf.
This is only a suggestion, however In my Angular 7 application I added this (it's not required to change cookiename and token, because they have default values in Angular's sourcecode):
QUESTION
I'm trying to create my own AuthenticationHandler and use with cookie authentication:
...ANSWER
Answered 2018-May-16 at 21:08I think what you're after may be solved with some new pieces in ASP.NET Core 2.1
Here's a sample of how to "select" auth schemes based on httpcontext data:
QUESTION
My app.js file looks like
ANSWER
Answered 2017-Oct-26 at 07:56You might have to pass io to your routes to make it available:
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