Parallel Http Requests Javascript

As long as the event handlers are small and frequently wait for yet more events themselves, all computations (for example fulfilling and serving a HTTP request) can be thought as advancing one small step at a time - concurrently. js is a single-file JavaScript library for GPGPU in the browser. But what were missing is that the request and requests libraries, make http requests that go to other servers. We're the creators of the Elastic (ELK) Stack -- Elasticsearch, Kibana, Beats, and Logstash. Appropriate use of these standards can benefit your application greatly, improving response times and reducing server load. Request is designed to be the simplest way possible to make http calls. js Making HTTP requests is a core functionality for modern languages and one of the first things many developers learn when acclimating to new environments. Who is InformIT. The OpenCPU server provides a reliable and interoperable HTTP API for data analysis based on R. JavaScript promises started out in the DOM as "Futures", renamed to "Promises", and finally moved into JavaScript. XMLHttpRequest API provides client functionality for transferring data between a client and a server. * is the new postman. The actual sending and receiving of the requests is abstracted. , value = response. Running Tests In Parallel. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. Send the request. This async sample contains the code for How to: Make Multiple Web Requests in Parallel. NET was written (over 10 years ago now right?) concurrent ASP. Cross-Site Request Forgeries Published in PHP Architect on 13 Dec 2004. It also allows your users to reuse the cache files that have been stored in the browser to reduce the amount of files they need to download. Below is the sample code I've been working with function getInfoViaConcurrency(ids) { let infoPromiseArr = ids. As example of its capabilities, the File API could be used to create a thumbnail preview of images as they're being sent to the server, or allow an app to save a file reference while the user is offline. Frameworks like Mootools and jQuery have made Javascript unbelievably accessible to designers. You can connect an HTTP function to Firebase Hosting. Send Ajax GET and POST requests. A quick guide to JavaScript Promises - Twilio Level up your Twilio API skills in TwilioQuest , an educational game for Mac, Windows, and Linux. The goals are to foster innovation by tracking browser functionality and to be a resource for web developers. Line 5 checks the status code after the transaction is completed. So, we must listen for the body content to be processed, and it’s processed in chunks. Intercepting requests and responses. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. The NVP interface to the PayPal API supports up to a maximum of 10 parallel payments in a transaction. Any additional requests requiring ANY session access will be blocked until the previous R/W request has completed Why? Well then… it looks like when ASP. It captures AJAX requests which were made while the connection was down, and remakes them when it's back up, so your app reacts perfectly. Congratulations, you used plain JavaScript to connect to the API using HTTP requests. request(method='GET', url=url)statement or in the next statement i. > one request) they were not reused. Click the button below to continue. Data can be sent using the HTTP POST method and received using the HTTP GET method. A web browser with JavaScript enabled is an essential part of using the internet; if it's disabled a lot of websites won't work properly. Download and install instructions are available here. It allows you to write tests with an approachable, familiar and feature-rich API that gives you results quickly. 1 of the HTTP/2 specification, so your client behaviour seems a bit out of keeping with what is expected. You'll dive into how asynchronous requests work by using the XHR object to create and send asynchronous requests for image and news article data. Today, HTTP requests are everywhere. Ajax is the traditional way to make an asynchronous HTTP request. exec_proxy - a system for executing arbitrary programs and transferring files (no longer developed) execnet - asynchronous execution of client-provided code fragments (formerly py. js is a single-file JavaScript library for GPGPU in the browser. The time spent in sending the request, processing it server side, and returning the response, is not spent in our thread. We’ll be using axios in this tutorial. Simple interface for building query strings, POST requests, streaming large uploads, streaming large downloads, using HTTP cookies, uploading JSON data, etc. Multiple requests can be. 1 specification, circa 1999, recommends that browsers and servers limit parallel requests to the same hostname to two (Fielding et al. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. , completed HTTP requests or if a timeout started through setTimeout() has passed. This course covers everything a developer needs to know to asynchronously send and receive data in their web applications. Sign in with your organizational account. * You may already know… Continue reading "Send asynchronous requests with Postman’s PM API". The common ways to get around this are JSON-P, Proxying and message passing via s. [1] The technique was superseded by multiplexing via HTTP/2 , [2] which is supported by most modern browsers. Javascript Dungeons and Dragons 4th Edition Character Generator For we do not wrestle against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this age, against spiritual hosts of wickedness in the heavenly places. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. Supports any HTTP method but has explicit support for POST, GET, PUT, DELETE, OPTIONS, PATCH and HEAD and includes specifying and validating e. Respond to requests directly from your Worker, or forward them elsewhere. You can also stream a file to a PUT or POST request. Handling more requests like POST. , value = response. If the result is 200 -- HTTP's "OK" result -- the document's text content is output to the console. Set data type (xml, json, script, text, html) and decode returned data. Please give me any idea to do that ?. The DEA's training guides on parallel construction emphasize the risks and rewards of using sensitive intelligence information in domestic law enforcement, as well as the methods available to agents eager to obscure the source of their investigative leads. Parallel Miner is top-notch! Quality products, fast & professional shipping, great customer service, and great deals! Thanks Parallel Miner! =) Mark S. Resistor calculator (series and parallel) If you need a non-standard resistor value you could probably realize a close match using two resistor. The programs and data stored on this system are licensed to or are the property of Infosys Limited. Request data from a server - after the page has loaded. I also defined a watcher for this variable, so every time it changes, a specific function is executed. Event handlers are also asynchronous by nature. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. Raygun gives you a window into how users are really experiencing your software applications. Built-in integration with iTunes, multi-location sync, and anywhere streaming. SOAP stands for Simple Object Access Protocol and it is one way to format XML messages to allow Internet based communications between two programs. The PayPal API uses a special syntax for NVP fields to support parallel payments. Related Posts. Whether you notice a small improvement that should be made, or want to write entirely new articles, this is one area where feature requests are encouraged! Open an Issue or Submit a Pull Request. Websites could soon become more responsive and more secure as they adopt a new version of HTTP. It enables you to update sections of a page with data that comes from the server, whilst avoiding. Sign in with your organizational account. How to Quash Firefox's Silent Requests 294 Posted by timothy on Friday August 14, 2015 @07:35PM from the ping-ping-ping-bzzzzt dept. So, if you want to use JavaScript to make your web pages more interactive, interesting, and usable, we can help. In more complex sites, however, where any page can make an arbitrary amount of requests, it's probably better to write a function that reuses existing XMLHttpRequest objects. The Lion King 2019 Dual Audio Hindi 720p HDCAM 940MB. It will help you in getting the referrer, The page from which your current web page got loaded. or by submitting a support request at http:. "Simple HTTP Requests" is a tool that simplifies API testing. The standard (and default) port for HTTP servers to listen on is 80, though they can use any port. There is no implied ordering in the execution of the array of Promises given. This web browser does not support JavaScript or JavaScript in this web browser is not enabled. I stopped at your post on how to increase script timeout in asp. First initialize an XMLHttpRequest object with the open method, then specify the necessary request headers with the setRequestHeader method and finally send the request with the. Parallel processing is less suitable for OLTP style databases. ReQuest: premium whole-house music and video entertainment systems for the home, office or yacht. Your answer. org/licenses/gpl-faq. Now, HTML5 is bringing us true multi-threading. Redirect to a New Page If you're looking for a way to redirect your visitors to a new page, this JavaScript redirect code may be your answer. Works in Python 2. actually your design is bad, you should not keep http connections open a long time (the proxies in the middle can timeout the request). Möchtest du bei deinem nächsten online Einkauf sparen, sind Rabattcodes ein heißer Tipp. The elements are separated by space SP characters. Most websites have this check in place. Each connection can only support one request for a resource at a time and the server returns whatever was requested as quickly as it can. ipify API is a simple public IP address API, easy enough to integrate into any application in seconds. In Euclidean geometry, the area of a triangle is given by the equation: A=½bh, where the base,. If the parallel port is integrated to the motherboard (like in many new computers) repairing damaged parallel port may be expensive (in many cases it it is cheaper to replace the whole motherborard than repair that port). In my opinion a randomly generated token (os. This example, while not geolocation, stemmed from the currency converter that is included in the geolocation webservice. js Python Java Ruby Perl PHP C#. There isn't. getParameter("value") within javascript function I have this particular requirement that on my jsp page, i am getting some parameters set by controller servlet and i need to get the values of these parameteres within my java script function so that i can set the values of my form elements and submit it. Welcome to the new and improved. Spring Boot is designed to get you up and running as quickly as possible, with minimal upfront configuration of Spring. a POST request to authenticate on a site/service: Use. The better approach to speed up things would be to execute multiple Ajax requests simultaneously. execute tasks serially, one after the other, and all within a single thread; report each task as it completes. Axios is a promise based HTTP client for the browser and Node. The use of Florida International University's information technology resources is contingent upon proper authorization. Build your skills with this free AI course for data scientists and developers. Parallel Ajax calls Michael Brown October 10 2015 01:23:17 AM Some time ago (4+ years, yikes!) I wrote a post called Getting around Domino’s Ajax lookup restrictions. When I was first learning React, I wasn’t sure whether there was a built-in way to make HTTP requests. In fact, I wrote about it in my tutorial titled, Consume Remote API Data via HTTP in a Vue. After setting the above 3 environment variables, when calling request module to send requests, they will be captured by Fiddler. Learn more about connecting Cloud Functions to Firebase Hosting. HTTP Web-Sniffer 1. It can be used in plain JavaScript or with a library such as Vue or React. createServer(), the callback is called when the server got all the HTTP headers, but not the request body. Testing Asynchronous JavaScript. Apache Spark is a unified analytics engine for big data processing, with built-in modules for streaming, SQL, machine learning and graph processing. Learn Python, JavaScript, DevOps, Linux and more with eBooks, videos and courses. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. It allows you to write tests with an approachable, familiar and feature-rich API that gives you results quickly. The ngx_http_js_module module is used to implement location and variable handlers in njs — a subset of the JavaScript language. Requests on your Firebase Hosting site can be proxied to specific HTTP functions. The use of Florida International University's information technology resources is contingent upon proper authorization. It will help you in getting the referrer, The page from which your current web page got loaded. So in the end I think it's quite the same. 👉 This article has been updated and republished, read the latest version here NodeJS supports async/await out of the box since version 7. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. I've been discussing with various Java Script luminaries and it seems like a design is starting to emerge. You'll dive into how asynchronous requests work by using the XHR object to create and send asynchronous requests for image and news article data. It was originally designed for testing Web Applications but has since expanded to other test functions. Web services that conform to the REST architectural style, called RESTful Web services, provide interoperability between computer systems on the Internet. Performance scales per prefix, so you can use as many prefixes as you need in parallel to achieve the required throughput. The issue is even worse when using server-side JavaScript: the server will not be able to respond to any requests while waiting for synchronous functions to complete, which means that every user making a request to the server will have to wait to get a response. For each of these entities I need to create an independent HTTP request and collect the response. To do that with the XMLHttpRequest object, the parameters must be provided in the send() method. The Disqus API works over the HTTP protocol. Numbers below 16 refer to parallel ports detected by the system. Note that this property is only valid for POST requests. Sign in with your organizational account. While these callbacks are triggered by (external) asynchronous code, the handlers within your JavaScript code still run on the same UI thread. It prepares and sends a SOAP request to the server (invoking method and parameter values) It processes the server reply using the WSDL so as to build the corresponding JavaScript objects to be returned If the call mode is async, the CallBack method is invoked, otherwise it returns the corresponding object. The params property is a JavaScript object with one property per request parameter to add. > one request) they were not reused. If I was there, I would do only two things: Optimize images - If you're using png files, then I suggest to use tinypng. Thus, a concurrent request can start a parallel (and a duplicate) payment process. The AWS SDK for JavaScript enables you to directly access AWS services from JavaScript code running in the browser. Knowing that most of the popular browsers allow about 6 parallel connections per domain you'll understand that when your website has 6 or more supportive files to load it can already slightly slow your website. Welcome to another edition of Security Corner. It seems to me that I somehow cause all requests to be serialized for the same connection but different streams. Welcome to the new and improved. REST Commander (Formerly known as REST Superman) Fast Parallel Async HTTP/REST/SOAP client as a service to monitor and manage 100,000 web servers. We are really blessed with this types of informatic Posting. When retrieving information from multiple related records, I prefer using FetchXML and the SOAP endpoint over OData. Sign in with one of these accounts. Why IE11 cant send a POST request by using legacy javascript code and XMLHttpRequest? Hello everybody, When I use IE8, my javascript code can send a request to the web server but when I use IE11 the same request does not exit from the browser. Warning! JavaScript is not currently enabled in this browser. Get started here, or scroll down for documentation broken out by type and subject. ajax() will execute the returned JavaScript, calling the JSONP callback function, before passing the JSON object contained in the response to the $. If the result is 200 -- HTTP's "OK" result -- the document's text content is output to the console. Sending Data to the Server. Sign in with your organizational account. Often a task is awaited as. The PayPal API uses a special syntax for NVP fields to support parallel payments. Normally, AJAX can't be used to perform cross-site requests, but using jQuery's JSON request, we can sidestep this annoyance. We'll be using axios in this tutorial. Line 5 checks the status code after the transaction is completed. This web browser does not support JavaScript or JavaScript in this web browser is not enabled. Language Examples. - рüффп Mar 27 at 9:36. In this post, which is based on what I've learned about callback functions, I'll try to enlighten you on this fairly common JavaScript technique. Below is the sample code I've been working with function getInfoViaConcurrency(ids) { let infoPromiseArr = ids. 0 +) and the first request is a blocking request (for example an inline JavaScript Request) Request I. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. Node-Parallel-HTTP. The sampler has a simple interface and it is presented in the. ReQuest: premium whole-house music and video entertainment systems for the home, office or yacht. XMLHttpRequest API provides client functionality for transferring data between a client and a server. This will make sure we still have all the results before continuing, but the asynchronous calls will be firing in parallel, not one after another. Everything you've seen here used to be a novelty that only Internet Explorer supported in the very beginning. Cross-Origin XMLHttpRequest Regular web pages can use the XMLHttpRequest object to send and receive data from remote servers, but they're limited by the same origin policy (and since Chrome 73 content scripts are also subject to the same restrictions as the web page they are injected into). We call these requests HTTP requests. Alpha Delta Parallel Dipole Antennas consist of the Alpha Delta DELTA-C center insulator and end insulators, ISO-RES coils connected to the 80/40/15 meter wires, and separate wires for 20 and 10 meters. Hi tomnolan95, As far as I know, the best way about Multiple API calls in parallel is batch support in Web API. Fable and Fetch: HTTP Calls in JavaScript Apps With F# In my last article, I introduced React Native app development with F# and mentioned briefly that we can do HTTP calls with the help of the. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Socket has the property that socket. In the following example we'll run only 2 requests at the same time. ), a relative url (the portion of the URL after graph. AngularJS is what HTML would have been, had it been designed for building web-apps. XMLHttpRequest is a built-in browser object that allows to make HTTP requests in JavaScript. The key thing to understand is that when you initialize the HTTP server using http. HTTP Requests with the Axios JavaScript Library One of my favorite libraries for making HTTP requests is the axios library. the first ajax request should return right away and the long running process should be done by a service or worker thread. To avoid problems with concurrent requests we just need to make sure that no request for the same payment ID can start while there is another request in the code section between await getPayment and await. A collaborative learning platform for software developers. By David Walsh on November 2, 2014. Florian Rappl discusses why multi-threading is important and how to implement it in JavaScript with ParallelJS. Each additional request means another roundtrip to the server, so many plugins will combine CSS and JavaScript resources into fewer files to speed up website performance. Resistor calculator (series and parallel) If you need a non-standard resistor value you could probably realize a close match using two resistor. Sign in with your organizational account. The latest Tweets from Parallel Artists (@ParallelArtists). The controller receives input from the routing system, which includes the HTTP request context (session, cookies, browser, etc). Parallel JavaScript with ParallelJS for handling asynchronous requests to. Provides several authentication mechanisms. If you want to wait for all of the tasks to complete, there is no need to do that. Cross-Origin XMLHttpRequest Regular web pages can use the XMLHttpRequest object to send and receive data from remote servers, but they're limited by the same origin policy (and since Chrome 73 content scripts are also subject to the same restrictions as the web page they are injected into). With HTTP/1. Understanding JavaScript's requestAnimationFrame() method for smooth animations. The time spent in sending the request, processing it server side, and returning the response, is not spent in our thread. all() method returns a single Promise that resolves when all of the promises passed as an iterable have resolved or when the iterable contains no promises. You could reject any form posts from alien referrers. Python's documentation, tutorials, and guides are constantly evolving. js Building Resilient Systems on AWS : Learn how to design and implement a resilient, highly available, fault-tolerant infrastructure on AWS. JavaScript promises started out in the DOM as "Futures", renamed to "Promises", and finally moved into JavaScript. These all have their quirks, but the thing they generally have in common is legacy browser support. Do a Basic HTTP Request with Node. The params property is a JavaScript object with one property per request parameter to add. Node Ruby PHP Java. We call these requests HTTP requests. Load data asynchronously from the server using GET or POST HTTP requests. Making concurrent HTTP requests in Go programming language we can see how to make parallel web requests in Go. So, does it mean server processes requests sequentially or it would still process them in parallel only waiting for slow ones when outputting the lot? If they are processed in parallel then faster requests (in terms of amount of server time required) which were sent later will be finished earlier then slow requests. Written before broadband was widely adopted, this specification was designed for narrowband connections. This is the HTTP method that you want to use for the API request. For our purpose of sending multiple HTTP requests it's useful to mention that mergeMap() can take three arguments in total: The projection function that needs to return an Observable. the first ajax request should return right away and the long running process should be done by a service or worker thread. Whether you're a. Declarative templates with data-binding, MVW, MVVM, MVC, dependency injection and great testability story all implemented with pure client-side JavaScript!. In this article, we are going to look at a few popular ways to make HTTP requests in JavaScript. Line 5 checks the status code after the transaction is completed. The Message Passing Interface Standard (MPI) is a message passing library standard based on the consensus of the MPI Forum, which has over 40 participating organizations, including vendors, researchers, software library developers, and users. disable session for the polling request. XMLHttpRequest is a built-in browser object that allows to make HTTP requests in JavaScript. Add additional utility methods to java. On most sites, the major component of download time is not the base HTML file itself, but the number of subsequent HTTP requests to load the page's supporting files - CSS, JavaScript, images, etc. NET app from my local dev box, run smoothly except two interim pages take time to render. Sign in with your organizational account. This web browser does not support JavaScript or JavaScript in this web browser is not enabled. * is the new postman. If your server needs to hit two or three APIs before it can render (the bane of the mashup crowd), then making sequential requests can be taking a huge bite out of your performance. PHP curl_multi example of parallel GET requests. Amazon S3's support for parallel requests means you can scale your S3 performance by the factor of your compute cluster, without making any customizations to your application. execute tasks serially, one after the other, and all within a single thread; report each task as it completes. This tool simplifies API testing and sending requests online. Trailblazers like you deliver continuous innovation using powerful tools built right into one customer success platform, including modern app development practices, analytics, AI, and secure data integration. Requests on your Firebase Hosting site can be proxied to specific HTTP functions. This is the foundation that enables all other features and performance optimizations provided by the HTTP/2 protocol. Either convince yourself that this is also true in hyperbolic geometry or find a counter example. It allows you to take a list of URLs (it currently supports HTTP, FTP, and FILE URLs. The goals are to foster innovation by tracking browser functionality and to be a resource for web developers. To see how it works, add to web form one UpdatePanel control and one Timer control. 5 makes the code almost as easy to understand as synchronous code. Any callbacks are handled as interrupts – e. Cross-Site Request Forgeries Published in PHP Architect on 13 Dec 2004. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. Viewed 11 times 0 \$\begingroup\$ I am working on a login/register system and want the register and. Either convince yourself that this is also true in hyperbolic geometry or find a counter example. Initially I don't know how many request I'm gonna need to make. You can use functions provided by the hosting environment through javascript: [code]function httpGet(theUrl) { var xmlHttp = new XMLHttpRequest(); xmlHttp. I work in a three story building and there are always loads of queens on the walls from the previous night, as they are attracted by the lights. sys posts the request to an I/O completion port on which IIS listens. It also provides a global fetch() method that provides an easy, logical way to fetch resources asynchronously across the network. To get a more precise measure of compile time, look at the “total compilation time ___ms” part of the “Successfully compiled asm. While these callbacks are triggered by (external) asynchronous code, the handlers within your JavaScript code still run on the same UI thread. NET Web page, User Controls, custom compiled controls, HTTP modules, and class libraries used during the page request - all have access to the HttpContext object and therefore can all read from and write to the Items Hashtable. The await operator is applied to the task at the point in the method where processing can't continue until the task finishes. I’ve got a series of buttons: Each button, when clicked, hits a service on my application server and fetches some data. Bulletproof Requests. urandom() based) is more secure. js App To Test Let's go ahead and write a simple function that makes a HTTP request to the Github API to get a user by username. Understanding JavaScript's requestAnimationFrame() method for smooth animations. Sign in with your organizational account. The common ways to get around this are JSON-P, Proxying and message passing via s. JSON with JavaScript; JSON HTTP using JQuery ; Use JSON to perform an HTTP request to retrieve data from a remote location. One of the most frequently overlooked technologies is that of the HTTP cache. html # Copyright (C) 2001 Free Software Foundation, Inc. actually your design is bad, you should not keep http connections open a long time (the proxies in the middle can timeout the request). How to Quash Firefox's Silent Requests 294 Posted by timothy on Friday August 14, 2015 @07:35PM from the ping-ping-ping-bzzzzt dept. XMLHttpRequest is a built-in browser object that allows to make HTTP requests in JavaScript. This diagram shows the structural elements of an HTTP request and an example of the sorts of headers a request might contain. This web browser does not support JavaScript or JavaScript in this web browser is not enabled. To find out if your web browser supports JavaScript or to enable JavaScript, see web browser help. Create an onload callback to run when the request completes. That's worth reading a couple of times, and it will likely not be until you've. GitHub Gist: instantly share code, notes, and snippets. Here's a good example and tutorial on using YUI Get to load scripts. parallel XmlHttpRequests. Sends requests to 1000 servers with response aggregation in 10 seconds. NET session alive, one more option is to use ASP. Create an onload callback to run when the request completes. js there are a fair amount of solutions to this problem both built into the language and by the community. We are the online presence of the family of information technology publishers and brands of Pearson, the world's largest education company, and your one-stop resource for qualified content, including DRM-free eBooks, to help you do your job better. This web browser does not support JavaScript or JavaScript in this web browser is not enabled. Sign in with your organizational account. Also in this Guide is a definition of the idea of a college, a lovely example of parallel form. In my case when I access ASP. Spark Framework is a simple and expressive Java/Kotlin web framework DSL built for rapid development. If you have an application that needs to capture HTTP or monitor HTTP traffic, FiddlerCore is the tool you can use to do it easily. class SimpleHTTPServer. How to use Flask-APScheduler in your Python 3 Flask application to run multiple tasks in parallel, from a single HTTP request When you build an API endpoint that serves HTTP requests to work on long-running tasks, consider using a scheduler. Dependent Request Http Request is dependent request when it waits for result which needs to be given by other Http request i. I have looked around and have seen some pure node js examples that uses callbacks with other plugins For example this https:…. Yes, parallel seems very good and it's easy to send the same request 100 times. > > Any clues? > José > Opening more than one HTTP/2 connection is a SHOULD NOT according to Section 9. [1] The technique was superseded by multiplexing via HTTP/2 , [2] which is supported by most modern browsers. 5 makes the code almost as easy to understand as synchronous code. Update a web page without reloading the page. > one request) they were not reused. Store application data in Amazon DynamoDB, and save user files to Amazon S3. Performance scales per prefix, so you can use as many prefixes as you need in parallel to achieve the required throughput. it makes sense to use the HTTP request body to carry further information: In the PUT case, for example. ipify API is a simple public IP address API, easy enough to integrate into any application in seconds. This web browser does not support JavaScript or JavaScript in this web browser is not enabled. 0 defines a JavaScript binding to the Khronos OpenCL standard for heterogeneous parallel computing. Cory Rylan We already know what the ids are for these resources so we can request them in parallel. The SQL performs at least one full table, index or partition scan. Ok, I agree that at the hardware level, you can only make one request at a time. It gives you a 'Async' object that you can add requests to, and then get the requests off as they finish.