ioc | control javascript library for dependency injection | Dependency Injection library
kandi X-RAY | ioc Summary
kandi X-RAY | ioc Summary
The container is the place where all dependencies get bound to. It is possible to have multiple container in our project in parallel.
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QUESTION
Code Snippet :
...ANSWER
Answered 2022-Apr-17 at 16:56You should
use SSL, usually with SNI
not append the port to the hostname for WS handshake (mildly surprising)
use a proper endpoint url, from the same docs:
The base endpoint is:
wss://stream.binance.com:9443
- Streams can be accessed either in a single raw stream or in a combined stream
- Raw streams are accessed at
/ws/
- Combined streams are accessed at
/stream?streams=//
- Combined stream events are wrapped as follows:
{"stream":"","data":}
I just guessed a stream name (wss://stream.binance.com:9443/ws/btcusdt
), added some code to print the received/sent messages:
QUESTION
My code :
...ANSWER
Answered 2022-Apr-15 at 23:01Here:
QUESTION
It seems like the IAppSettings
implementation was not ready from IoC in the constructor.
Before I go into details, I've read similar problems:
- ServiceStack doesn't auto-wire and register AppSettings
- Instantiation of POCO objects with ServiceStack's IAppSettings is not working
Both were answered by @mythz that he was not able to reproduce it.
From the Doc"ServiceStack made AppSettings
a first-class property, which defaults to looking at .NET's App/Web.config's.": https://docs.servicestack.net/appsettings#first-class-appsettings
And there is default IoC registration already in Funq to give you AppSettings
when you ask for IAppSettings
:
All my codes are in the repo: https://github.com/davidliang2008/MvcWithServiceStack
The demo app is just an ASP.NET MVC app (.NET 4.8) that built using the template, the simplest you can get, with ServiceStack (5.12.0) installed:
...ANSWER
Answered 2022-Mar-24 at 01:26You cannot use any property dependency in the constructor since the properties can only be injected after the class is created and the constructor is run.
You'll only be able to access it in the Constructor by using constructor injection, e.g:
QUESTION
Today I attend the interview I am a newbie to java, spring boot. The interviewer asked the question about garbage collectors. I said the garbage collector will release the unused resource. Then he asked about the IOC container, I said it take control of object creation and will inject into the dependent bean. Then he asked why we need to use an IOC container I said it will not create a new object every time it will use an existing one. Again he asked okay what is the issue in creating a new object because the garbage collector will release the memory then why should we go for IOC..? I am stuck here. Please help to understand this better
...ANSWER
Answered 2022-Mar-20 at 15:37In short, you don't always want new objects because they can be very expensive/slow to be created.
IOC container allows your component to give up control of how your dependencies are created and managed.
For example: If I create a DAO layer/class in traditional way, my DAO layer needs to know about how to create datasource. This can be managed, but imagine lot more classes that need to know now how to create a datasource.
Use IOC, you DAO layer will say: Hey ! I need an instance of datasource. Now, it is upto IOC container to find one and provide it for you. You still need to provide IOC a way to create this instance for you. But in this case, you all DAO layer can remain cohesive and just do what they should do - perform transactions. This will also allow you to create specialist classes / components that are responsible for handling database connectivity in specalized manner.
In spring, all beans are singleton by default. It means there would only be one instance in Spring context. You don't need them to be created multiple times.
Purpose of IOC is not to ease up functioning of GC. It is to let go of how your components and dependencies are created.
QUESTION
Reference: websocket_client_async_ssl.cpp strands
Question 1> Here is my understanding:
Given a few async operations bound with the same strand, the strand will guarantee that all associated async operations will be executed as a strictly sequential invocation.
Does this mean that all above async operations will be executed by a same thread? Or it just says that at any time, only one asyn operation will be executed by any available thread?
Question 2> The boost::asio::make_strand
function creates a strand object for an executor or execution context.
ANSWER
Answered 2022-Mar-19 at 04:33Does this mean that all above async operations will be executed by a same thread? Or it just says that at any time, only one async operation will be executed by any available thread?
The latter.
Question 2Here, resolver_ and ws_ have its own strand,
Let me interject that I think that's unnecessarily confusing in the example. They could (should, conceptually) have used the same strand, but I guess they didn't want to go through the trouble of storing a strand. I'd probably have written:
QUESTION
According to Microsofts documentation, the IOC Container
is repsonsible for cleanup of types it creates and calls Dispose on IDisposable
Interfaces
https://docs.microsoft.com/en-us/dotnet/core/extensions/dependency-injection-guidelines#:~:text=Disposal%20of%20services
-> so will the container also call Dispose on IDisposable
Interfaces when they are generated in the context
of an injected object?
e.g.: in startup.cs:
...ANSWER
Answered 2022-Mar-15 at 01:13is this resource also disposed by the container?
The container only disposes instances which are registered with the provider and which the provider is used to create. In this case, HttpResponseMessage
is created by HttpClient
, and should be disposed by your code.
QUESTION
After upgrading my webpack from v4 to v5, I got this error that is getting me a hard time debugging.
...ANSWER
Answered 2021-Nov-30 at 00:05For my version of this error, the issue seemed to be that I was importing a file with an alias in webpack from within the same directory.
To give an example, I had this directory setup:
QUESTION
In 2020 Haukinger wrote on these forms:
So, with Prism 8, you write Prism.Ioc.ContainerLocator.Container
I am using Prism 8.1.97 and I can find no such ContainerLocator using the Visual Studio Object Browser, in any of the Prism namespaces. Nor will Intellisense recognize it (I have
...ANSWER
Answered 2022-Feb-24 at 07:38You have to reference Prism.Core
QUESTION
In the XML file, there are nodes that reference images and there are a lot of them! What I'm trying to do is create a variable at the top of the doc to specify drive and path (C:\IMAGES) so that if I want to change the path or drive or both, then I only have to do it in one line. However, I've tried different formats but can't get it to work inside the node.
This is what it looks like now:
...ANSWER
Answered 2022-Feb-24 at 01:23Entities work well for this. You can declare the path
as an entity inside of a DTD:
QUESTION
I have a microservice in Quarkus which implementing CQRS/Event sourcing using AxonIq Framework. I Already made it using Spring boot and everythings it's ok. I would like to migrate it in Quarkus but I have error during maven compilation probably because the Ioc. When CDI try to create the service I think he can inject Axon CommandGateway and QueryGateway.
...ANSWER
Answered 2022-Feb-22 at 08:06I had the same issue, one of the reasons can be that your bean is brought by a dependency and to fix it you need to add an empty beans.xml in main/resources/META-INF in this dependency in order for Quarkus to discover the beans as indicated by the documentation
Relevant extract:
The bean archive is synthesized from:
the application classes,
dependencies that contain a beans.xml descriptor (content is ignored),
dependencies that contain a Jandex index - META-INF/jandex.idx,
dependencies referenced by quarkus.index-dependency in application.properties,
and Quarkus integration code.
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