Vue Async Await Method

This method represents the task that toasts the bread, then adds butter and jam. async/await is more or less just sugar over Promises, so returning the Promise gives you something to await in the other method. js, no outside libraries required. Writing reusable Vue functionality feel more intuitive and you can easily share it with others. The marked async method can use the await keyword to designate suspension points. The await makes the method call asynchronous. If you are using axios directly from node_modules and used the axios. 7+) prints “hello”, waits 1 second, and then prints “world”:. The fetch method receives the context object as the first argument, we can use it to fetch some data and fill the store. Performing an operation on each element of an iterable is a common task. They cover from JavaScript frameworks like React, to the latest advancements in CSS to simplifying web tooling. It was easy to use and more importantly made the code easier to read. Where? Used mostly for data fetching and other initialization stuff componentDidMount is a nice place for using async/await in React. The async/await keywords make asynchronous programming much easier for developers to digest and implement correctly. If you specify that a method is an asynchronous method by using an async modifier, you enable the following two capabilities. async and await keywords are introduced in C#5 for asynchronous programming. A hypothetical introduction As web developers, we make requests to APIs a lot - not only to our own APIs but to others', too. ForEachAsync is provided. Task OnTaskCompleted not raised. The problem here is that each async/await is local to the current method that invoked it. Async in Vue. This raises the question how these new features can be used along with Telerik Reporting. On my personal site the list of projects that are displayed are actually from the Github API. 5), allowing easy-to-read workflow for an asynchronous operation. I'm trying to use vue-async-data to fetch data asynchronously before rendering my Vue component, but I'm having no success. We are currently considering implementing the Asynchronous Commands in our POCO ViewModels, and have read and and tested the examples documented in the following article: Asynchronous Commands. The fetch method receives the context object as the first argument, we can use it to fetch some data and fill the store. dispatch can handle Promise returned by the triggered action handler and it also returns Promise:. Obviously I can just prefix each method with the “await” keyword in a Main method marked with the async keyword, as shown below. Background Most of the applications that I write are hour long sequential tests for electronic equipment. I use both platforms depending on the needs of the particular project. I'm looking forward to seeing React Suspense when it is finally released. The main difference between an async function expression and an async function statement is the function name, which can be omitted in async function expressions to create anonymous functions. Here is a resource for checking browser support and functionality, and check here for using fetch. That promise resolves with whatever the async function returns, or rejects with whatever the async function throws. The syntax with the await keyword looks like this:. Code writing and understanding becomes easy with async/await as can be observed from both the examples. The compiler transformed asynchronous functions to generator functions using yield. While under-the-hood the errors turn into rejected Promises. The easiest ways to do that are to change Start() into async void Start(), or to call an async void method directly without await. And this was the. async is a simple way to make your Promise-Powered code look extremely neat. The await keyword causes the current function (getReadmeInHtml) to stop executing until the Promise returned from the await-ed function (getReadme, convertMdToHtml, saveHtml) resolves before moving on to executing the next statement. If you need async computed properties you might want to consider using additional plugin [vue-async-computed] # 📖 Rule Details. The state machine of a ValueTask -based method needs to keep more data compared to a state machine for a Task -based method. The for-await-of syntax shares some similarities with for-of iteration. JavaScript Async/Await | coligo At some point you've written JavaScript code with callbacks, nested within callbacks, nested within those callbacks, etc commonly referred to as callback hell. General: Favor async/await to Tasks In general, writing asynchronous code using async/await is much easier to code and to read than using. These are the top rated real world C# (CSharp) examples of HttpClient. coroutine decorator does. await: An operator that suspends the execution of the containing method until the awaited task completes. I'm trying to use vue-async-data to fetch data asynchronously before rendering my Vue component, but I'm having no success. Now introduce the async/await. If you delete the inner async/await, the method would be executed in synchronous mode. I'd simply suggest restructuring your method, as there isn't really a need to make an async method since axios itself is asnychronus. await syntax has landed, I would really like to see people go ahead and use it! Give yourself a little time to get used to it, but also pay attention to moments of confusion or surprise. If we use async Keyword in Method then the Method must also use await Keyword. This is to avoid having a method like “FooAsyncAsync” on the client after proxy code generation. GetStringAsync to download the contents of a website. C# provides async modifier to make a method asynchronous. In this episode, we take a look at how C# 5's language-level support for writing asynchronous code works. The preceding method has the async modifier in its signature. A hypothetical introduction As web developers, we make requests to APIs a lot - not only to our own APIs but to others', too. It pairs nicely with the newcomer on the client-side block, Vue In this tutorial, you’ll use Vue with. This means that the thread that starts an async method may jump out of it at the await keyword and a different thread will jump in again and continue where the previous thread left off. js文件,全局创建api实例. Nessa série de 10 vídeos eu vou revisar os principais conceitos de JavaScript que eu acredito que devam estar claros, antes de você começar a aprender um framework como React ou Vue. NET Framework 4. Async code can only run inside an event loop. In this case, we do not a. Some methods of the. 2) blog post for more information and please take a moment to answer this survey question. In this example, replace the call to GetResponse with a call to GetResponseAsync. Convention would now call this method an 'async method'. js project Build Setup # install dependencies npm install # serve with hot reload at localhost:8080 npm run dev # build for production with minification npm run build # build for production and view the bundle analyzer report npm run build --report. It can be used inside an Async block only. Display a loading feedback into a web application is a big thing. Another advantage of using async/await is the ability to use straight-forward try/catch blocks to catch any errors that may. How does one cleanup the Task object after the task has completed? (in C++). Async/Await is a relatively new language construct of JavaScript which makes our asynchronous code a lot cleaner. Disallow await inside of loops (no-await-in-loop). async/await can be used without relation to spawning a separated thread, it is a generic syntax for marking an asynchronous method which can be async in other sense depending on where the task completion source is. To make the fetch method asynchronous, return a Promise, Nuxt. Play Tip 4: Async Library Methods Shouldn't Lie Wrap events up in Task-returning APIs and await them so it seems sensible for the IRepository interface definition to include async methods. This means that lots of methods have to be sprinkled with async, Task and await: the caller, the caller's caller and so on up the chain. Run creates threads and ado. 众所周知C#提供Async和Await关键字来实现异步编程. Async and Await Guidelines. As a result, a service of the type below would not be supported. As a summary, here are some guidelines which you should follow when using the TPL and async / await: If you are using await within a method called in the UI thread, it will continue to run in the UI thread (unless you specify otherwise). >Not in v18. Async-Await are new keywords introduced to work with the TAP. Async return values. Learn how to build a Spring Boot API with Java, a Vue UI with TypeScript, and secure it all with OIDC. Min extension method in LINQ. methods: {async onDetect = await promise Because the input element is the root element of the component and because Vue components accept non-prop attributes. # Testing Asynchronous Behavior. JavaScript Async/Await | coligo At some point you've written JavaScript code with callbacks, nested within callbacks, nested within those callbacks, etc commonly referred to as callback hell. In the meantime, V8 was updated multiple times in Node. Select () ), then asynchronously wait for all the operations to complete in any order ( await Task. This is especially true for libraries which expose async operations. 24 16:12:56 字数 343 阅读 28073 用async/ await来发送异步请求,从服务端获取数据,等待获取数据,然后处理数据。. Run()' to do CPU-bound work on a background thread. 2) blog post for more information and please take a moment to answer this survey question. When async/await was introduced with C# 5. When we are dealing with UI and on button click, we use a long running method like reading a large file or something else which will take a long time, in that case, the entire application must wait to complete the whole task. js - The Progressive JavaScript Framework. I've had some requests to dive into the topic, so we'll start with the basics and go deeper from there. I cannot provide a full response regarding async-await in a comment field. They’re still confusing to many developers (including me sometimes!) and can be a source of many pitfalls. Example # The following example code demonstrates how you can implement the simple browser provider for portable browsers. In the latest versions of JavaScript (ES2017 or later), the async and await keywords were introduced. async/await freed us from callback hell, but people have started abusing it — leading to the birth of async/await hell. Async/await is a relatively new way to write asynchronous code in Javascript. So long the story can be summarized in TypeScript -> ES6 -> Babel -> ES5. By using ‘async’ and ‘await’ keywords, you can use resources in the. Starting with ECMAScript 2015, a shorter syntax for method definitions on objects initializers is introduced. The syntax is convenient and you may want to introduce it in your React components. In summary, async/await is a cleaner syntax to write asynchronous Javascript code. Remember, the await keyword is only valid inside async functions. The async and await combination allows you to have non-blocking methods. Note the async keyword added before the function parameters (req, res) and the await keyword which now precedes the db. When we are dealing with UI and on button click, we use a long running method like reading a large file or something else which will take a long time, in that case, the entire application must wait to complete the whole task. To consume these new calls, the programmer calls await (which requires the term async on the method signature): private async Task DataExists() { var retStream = await ReadStreamAsync(); return (retStream. Initial context: I have a very specific use case of a vuejs<->python bridge that makes (among other things) all the python-written method callable from vuejs, but as the call goes through websockets, all methods end up async. With the new. A method in C# is made an asynchronous method using the async keyword in the method signature. async (C# Reference) 05/22/2017; 4 minutes to read +8; In this article. To learn how to start creating your Order2Go application in VBA, please read Start using Order2Go in VBA. Best Solution. js app, using async and await. Michiel Mulders demonstrates how, when building a Vue app with Vue CLI, to make use of both Vue's async components and webpack's code-splitting functionality to load in parts of a page after a. There are many ways JavaScript provides us with to make it behave like an Asynchronous Language. If you want to see that in action, just open your network tab on your DevTools, then click on the playground button below. It cannot be used with plain callbacks or node callbacks. async/await is more or less just sugar over Promises, so returning the Promise gives you something to await in the other method. It is shorthand for chaining promises, equivalent to calling a chain of then functions and. This is an instance method. For now, redux-thunk doesn't have a good solution for handling async/await errors beyond wrapper functions or try/catch. If we contrast this solution with the solutions using promises above, we find that it is roughly the same line of code. Providing proper support for Async-Await to the consumers of your binding library is essential to. Restructuring Async I/O in the Rust org. Ultimately, using one method or another is a matter of style and brevity. According to the State of JS survey, Vue is the #1 frontend framework that isn't associated with a serial bad actor, which makes it worth learning if you're serious about going Facebook-free. Vue is a lean and mean JavaScript framework. OK, if you are using async/await keywords, please abandon using wait method. You can use it in NativeScript too, but you need this little trick to get it working. We have been using async await for quite some time now. 0+), you need to configure vue-loader to transpile the string template tag. Async functions are a combination of promises and generators, and basically, they are a higher level abstraction over promises. (The await keyword can be used with any promise). 6 comes from updating V8 , Chromium. If we use async Keyword in Method then the Method must also use await Keyword. It works both in the browser and in the Node. However, there are some techniques you need to be aware of when testing a component with asynchronous behavior such as callbacks or promises. If you specify that a method is an asynchronous method by using an async modifier, you enable the following two capabilities. Normally with promises, we would use. Now introduce the async/await. It makes your code easier to understand. js $ 1 $ 2 $ 3 $ Done 🎉 We now have a way of using forEach with async/await 🎉. 0: Waiting for async ajax data Posted 2 years ago by denorm. Let’s update our example again to wrap our execution into an async method: const start = async => {await asyncForEach([1, 2, 3], async (num) => {await waitFor(50); console. Share this: Part of the async/await paradigm is that you have to put your ‘await’ statement within a method marked as ‘async’. This allows you to mount getters to top-level computed properties in your component. Restructuring Async I/O in the Rust org. webpack, 储存用vue-ls, 异步async/await, css less. Dyploma is a system for managing containerized applications and services on top of…. Task OnTaskCompleted not raised. The mysterious async/await combination has been permeating JavaScriptland the for a bit now. 0-alpha releases now); finally, async-await support is starting to become available in higher-level web frameworks as well. Event loops¶. But I thought all await did was sign on the remainder of the method as a continuation on the same thread (there are exceptions; some async methods spin up their own thread), or sign on the async method as a continuation on the same thread and allow the remaining code to execute (as you can see, I'm not crystal-clear on how async works). Skip to content. js文件,全局创建api实例. Where in Java we might take a callback or return a Future, C# typically prefers to deal with Tasks to support the Async-Await language feature introduced in. network or filesystem). The C# keyword async allows one to write synchronous-looking asynchronous code. When you modify them, the view updates. So you can call an async method separately by obtaining a task object to it, then do some unrelated work, and after that await that task, either it has already finished which will result in. Therefore, I would like to write down the way I understand promises, in a dummy way. First, the async keyword indicates to C# that the method is asynchronous, meaning that it may use an arbitrary number of await expressions and will bind the result to a promise. I think this might become more and more common as people start understanding and using async/await more and more. That's ok until it's garbage collected - the exception will then cause the process to go down in flames. First, async/await makes the asynchronous code appear and behave like synchronous code. Underneath the hood, async/await uses generators. Create an Asynchronous Method [C#] This example shows how to create an asynchronous method conforming to the Event-based Asynchronous pattern. Thus, each async/await through the chain could end up resuming on different threads. Its quite easy to. Async code can only run inside an event loop. For this tutorial, you are going to use the progressive web app (PWA) template that includes a handful of features including webpack, hot reloading, CSS extraction, and unit testing. 1 although it make no sense in non UI thread program. The compiler will warn you if await is not called within the method body as the method is run essentially synchronously at that point, but it’s also possible to await multiple other asynchronous. 获取地址列表 ->获取用户的所在地址(根据地址列表循环,显示所在的地址)->渲染歌曲列表. The following are few tips and tricks for working with async in C#. Build Async Services with ASP. Models are just plain JavaScript objects. Having vue wait on components which have been marked as async not only causes issues for the users, the pattern of using async/await to start data look up is present everywhere. The problem is that this code will create a deadlock, and the Button_Click() method will never complete, and the reason for this might not be immediately clear. In real life scenario, we will usually not dothings like finding prime numbers, but every millisecond is precious, when blocking. Underneath the hood, async/await uses generators. Asynchronous is a programming term that means a type of two-way communication that occurs with a time delay, allowing participants to respond at their own convenience. Async Data Options in Vue's Nuxt. So the next thing that we want to do is actually having something that we can await, in our case this is the call to GetAllOrders. In this post, we’ll examine what happens when we await on methods instead of a task when we have multiple awaits in the method. 在本文中,我们将共同探讨并介绍什么是Async 和 Await,以及如何在C#中使用Async 和 Await. async method needs to have an await statement to. Today, community develops many libraries that. First, an async component can be defined as a factory function that returns a Promise (which should resolve to the component itself):. This demo combines all vue-qrcode-reader components to provide fallbacks for both desktop users without a camera and legacy mobile users without Stream API support. An async function expression is very similar to, and has almost the same syntax as, an async function statement. Has anyone used async/await with a Vue. There’s been a bunch of different approaches to handling async operations, including Redux-Saga, but in this article we’ll be focusing on what I think is currently the best approach: using react-async. ” then I had a thought…. Common Async/Await Design Patterns in Node. As I said above, to make this simpler, I just created random data. Since components are reusable Vue instances, they accept the same options as new Vue, such as data, computed, watch, methods, and lifecycle hooks. As you should already know from the first post of. GetAsyncEnumeratorAsync() method is async and returns a Task<IAsyncEnumerator>, where the current implementation of AsyncEnumerable always runs that method synchronously and just returns an instance of AsyncEnumerator. async function bestFetch { const first = fetch (); const two = fetch (); const firstvalue = await first. Hey, starting with koa on back-end, a lot of stuff are moving to async/await (*/yield for now), what I suggest is adding async/await functions support to methods so it's allowed to do like: import DBService from '. Yes, it does conceptually represent the async method, but it does not literally execute the async method. The calling function does not know when it ends. 如果var a = await testAsync();返回值就是"hello async",因为await等待的就是Promise的返回,而async返回到就是一个Promise,然后这个Promise中直接返回了"hello async". The Task returned by GetByKeyAsync is passed directly to the calling method, where it will be await ed. Async/await methods of Smtp class allow your application to send e-mails in the background using lightweight I/O worker threads. js - The Progressive JavaScript Framework. 5, that has a built-in support for asynchronous programming using async / await keywords. This is no longer the case with asynchronous methods, as we just found out, because the now asynchronous test returns immediately after invoking ShouldIChangeJob on line 5. C# Asynchronous Method. In this excerpt, learn eight techniques from renowned C# expert Bill Wagner to make your work easier than ever before. To consume these new calls, the programmer calls await (which requires the term async on the method signature): private async Task DataExists() { var retStream = await ReadStreamAsync(); return (retStream. When he's not hitting golf balls, he's probably watching foreign movies. It is shorthand for chaining promises, equivalent to calling a chain of then functions and. js code: import Vue from 'vue' import VueAsyncData from 'vue-async-data' import router from '. This means that lots of methods have to be sprinkled with async, Task and await: the caller, the caller's caller and so on up the chain. Michiel Mulders demonstrates how, when building a Vue app with Vue CLI, to make use of both Vue’s async components and webpack’s code-splitting functionality to load in parts of a page after a. async functions implicitly return a promise. Unit Testing. An example might be a critical section where two network requests should never be made concurrently. What is the relation with Task Parallel Library and async await keywords. 5), allowing easy-to-read workflow for an asynchronous operation. Introduced in Python 3. Its quite easy to. Traditionally, a method and all of its child method calls all happen on the same thread. Run() to kick off your own Task of an async operation sequence. e one yield-expression at a time by its iterator (the next method) where as Async-await, they are executed sequential await by await. js Components Written by Alex Jover Morales As your application grows, you start to look for performance patterns to make it faster. An async function can contain an await expression that pauses the execution of the async function and waits for the passed Promise's resolution, and then resumes the async function's execution and evaluates as the resolved value. I'm trying to use vue-async-data to fetch data asynchronously before rendering my Vue component, but I'm having no success. If you aren't using async/await then when the UI thread calls your method it is going to get a result back, that is a blocking call. However, there are some techniques you need to be aware of when testing a component with asynchronous behavior such as callbacks or promises. Jeremy Clark 42,953 views. Status property value of WaitingForActivation and a response. The easiest ways to do that are to change Start() into async void Start(), or to call an async void method directly without await. Entity framework multiple SaveChangesAsync await asynchronous operation Problem. The headliner feature for C# 5 was of course the await operator for asynchronous methods. Run creates threads and ado. Code writing and understanding becomes easy with async/await as can be observed from both the examples. That means no sensible result value is available when the method returns. net mvc5 web application + Entity Framework 6. When the await keyword is applied, it suspends the calling method and yields control back to its caller until the awaited task is complete. Async functions are a combination of promises and generators, and basically, they are a higher level abstraction over promises. This is as much a reference for myself as anyone else, but I figured it would probably useful for others as well. Async/await is a relatively new way to write asynchronous code in Javascript. Where in Java we might take a callback or return a Future, C# typically prefers to deal with Tasks to support the Async-Await language feature introduced in. If you hear someone say "invoke the method using 'await'", that might lead you to believe that 'await' does in fact somehow relate to method invocation, which might in turn shield you from the fact that you can await anything that's awaitable, and conversely that you can invoke an async method without awaiting its result. One of the reasons I love working with Vue is because of how useful methods, computed, and watchers are, and the legibility of their distinction. You can call the method as await Ldemo(); Asynchronous Lambda expressions can also be used in attaching event handlers: 1: btnOK. The async and await keywords just work. Handling errors with async/await. # Testing Asynchronous Behavior. Remember, the await keyword is only valid inside async functions. So long the story can be summarized in TypeScript -> ES6 -> Babel -> ES5. An asynchronous method is like a regular C# method, but its return type can only be of type void, Task or Task, and it can also contain await expressions, like: int result = await FooAsync(); Awaiting on an expression means launching the asynchronous execution of that expression (usually an async method) and, if it has not yet completed. They’ve grown in popularity immensely lately along with the rise of “serverless” web applications. NET Framework 4. vue template and set the correct props to mimic the content we want to load. Async Method Return Types Async, Method Signatures, and Interfaces The return Statement in Async Methods Async Methods Are Contagious Async Anonymous Delegates and Lambdas Chapter 5 What await Actually Does Hibernating and Resuming a Method The State of the Method Context Where await Can’t Be Used Exception Capture. Angular Tutorial with Async and Await January 27th 2017 Async TypeScript Angular In version 2. IO Module Module1 Sub Main() ' Create a Task with AddressOf. That's ok until it's garbage collected - the exception will then cause the process to go down in flames. js adds an asyncData method that lets you handle async operations before setting the component data. 使用vue全家桶制作博客网站 前面的话 笔者在做一个完整的博客上线项目,包括前台. In order to async / await anything, you’ll need a function that returns a promise. Making it Asynchronous using the Begin / End Pattern. I am returning a dictionary type,. Task: Represents an asynchronous operation. Extending the async methods in C#. Before we used callbacks and promises. The Async Main Method. The headliner feature for C# 5 was of course the await operator for asynchronous methods. Async and Await makes it possible to write and use asynchronous code with the simplicity of less complex synchronous code, but do you really understand how it works? Category Science & Technology. In other words, we can make a method call and go about our work without delay, and when the results are ready, we are notifed appropriately and are able to act upon them. It's perfectly fine to have an async void method (such as an event handler) so long as you look after exceptions within that method Simply changing the signature doesn't prevent unhandled exceptions The basic reason for this is that if you don't attempt to get the result of a Task (either by using await or by getting the Result directly) then. NET Framework 4. This can dramatically simplify code. We all have read and worked on Async/Await and that too many a times. To simplify testing, Vue Test Utils applies DOM updates synchronously. async await:The async and await keywords in C# are the heart of async programming. Filip shares a couple of the most common mistakes he sees. So you can call an async method separately by obtaining a task object to it, then do some unrelated work, and after that await that task, either it has already finished which will result in. Save 35% off the list price* of the related book or multi. It is extremely well-written, and includes guidance on API design and the proper use of async/await (including cancellation and progress reporting). This article has explained how the new async/await facilities can make writing good UI code easy but the same ideas apply more generally and you can write asynchronous methods that can be called from any thread, not just the UI thread. es6 的promise 逐步解决了层层回调的问题,es8的async await让异步变成了同步的写法,在vue中,可以通过封装axios,使得所有的请求都可以使用同步写法,同时处理错误信息等,可以建一个api. NET itself, you don't necessarily have to concern yourself with the nature of the operation you're awaiting. 5 The support for asynchronous operations in. NET MVC you can have asynchronous actions. Providing proper support for Async-Await to the consumers of your binding library is essential to. NOTE: You're mileage may vary with the async/await and mocha tests with promises. A couple of months ago async/await landed in V8, the JavaScript engine. Inside the myFetch() function definition you can see that the code closely resembles the previous promise version, but there are some differences. Async/await methods of Smtp class allow your application to send e-mails in the background using lightweight I/O worker threads. async await:The async and await keywords in C# are the heart of async programming. The Simplest Way to Create an Asynchronous Method You like the idea of using await and async to execute asynchronous methods, and you've got a method that you'd like to turn into an asynchronous method but you haven't called any native asynchronous methods within your method and you're not sure what to do to make your method "awaitable. NET or third-party libraries. This page assumes you've already read the Components Basics. A parent method starts on one thread. The function uses a decay copy of this argument. The async/await keywords make asynchronous programming much easier for developers to digest and implement correctly. You could "grow" synchronous method as virus. js, and the latest nightly build finally added the V8 version that supports the async/await functionality to Node. 2, XPO's Session and other key classes ship with a set of async APIs, including FindObjectAsync, GetObjectByKeyAsync, CommitChangesAsync (which return System. The async/await syntax is great if you want to write a more readable code when working with promises. It deeply integrates with Vue. Ideally, I want to be able to switch the data layer of my application at any time without having to touch all my components that rely on data from an external resource. Jeremy Clark 42,953 views. Promises are chainable. ContinueWith () ), the current task is set to null if the outermost wrapper task has been completed and thus all tasks have been completed. You can't use await in the RunScript method since the signature is hardcoded and you need to add the async keyword, but you can use them in your methods under. A Complete Guide To Avoiding CallbackHell And Writing Clean Code With Async. It's very easy to use API with the combination of async/await as it provides promises by default. Where? Used mostly for data fetching and other initialization stuff componentDidMount is a nice place for using async/await in React. In this article, I've built a demo to show how this. We are currently considering implementing the Asynchronous Commands in our POCO ViewModels, and have read and and tested the examples documented in the following article: Asynchronous Commands. Async functions are a combination of promises and generators, and basically, they are a higher level abstraction over promises. The await keyword is used to denote. Await a final call that saves the updated work; The above code block is typically how I go about handling these methods. Async & await are always used together, if a method is marked as async and does not have something awaitable in it; it will simply run synchronously. Vue中使用async-await处理异步请求函数的问题与示例 JS中的Promise和async/await 前端异步操作大杂烩(ajax、fetch、promise、async/await). NET framework will create tasks on separate thread to allow you to use this pattern, like the GetAsync() method of the HttpClient class (see more examples here ). The purpose of async/await functions is to simplify the behavior of using.