{"id":172000,"date":"2023-10-15T13:40:30","date_gmt":"2023-10-15T12:40:30","guid":{"rendered":"https:\/\/datascientest.com\/en\/?p=172000"},"modified":"2023-10-15T13:48:32","modified_gmt":"2023-10-15T12:48:32","slug":"aws-lambda-explained-unveiling-the-power-of-serverless-functions-on-amazon-web-services","status":"publish","type":"post","link":"https:\/\/datascientest.com\/en\/aws-lambda-explained-unveiling-the-power-of-serverless-functions-on-amazon-web-services","title":{"rendered":"AWS Lambda Explained: Unveiling the Power of Serverless Functions on Amazon Web Services"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"172000\" class=\"elementor elementor-172000\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6831fc67 e-flex e-con-boxed e-con\" data-id=\"6831fc67\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-76d4afd6 elementor-widget elementor-widget-heading\" data-id=\"76d4afd6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Introduced in 2014, AWS Lambda is a serverless Function as a Service platform. What does this mean? What are the main use cases? That's what we're going to detail in this article, to explain the growing popularity of the service.<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1301f4d3 e-flex e-con-boxed e-con\" data-id=\"1301f4d3\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4dd5d515 elementor-widget elementor-widget-heading\" data-id=\"4dd5d515\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What is AWS Lambda?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d3a8b81 elementor-widget elementor-widget-text-editor\" data-id=\"d3a8b81\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>Basically, the <a href=\"https:\/\/datascientest.com\/en\/amazon-web-services-aws-unveiling-the-power-of-the-amazon-cloud\">principle behind AWS Lambda<\/a> is very simple. It&#8217;s a matter of deploying functions (i.e., code) that react to events, without having to worry about the underlying infrastructure.<\/p><p>In other words, you don&#8217;t need to instantiate the virtual machines (servers) on which your application will run. <a href=\"https:\/\/datascientest.com\/en\/aws-courses-and-certifications-how-does-it-work-the-complete-guide\">AWS<\/a> takes care of the execution environment for you. It&#8217;s for this reason that we speak of serverless service: although there are of course servers to host the application, they are totally abstracted from the customer.<\/p><p>This has three main advantages:<\/p><ul><li>Reduce (and even eliminate) the time spent on server management: maintenance, updates, security patches, etc.<\/li><li>Enable near-infinite scalability by default: whether the function is run once a day or over a million times, AWS will adapt the service accordingly, without you needing to manage load balancing and auto-scaling.<\/li><li><a href=\"https:\/\/datascientest.com\/en\/aws-elastic-load-balancer-the-solution-that-distributes-network-traffic\">Load balancing involves distributing task<\/a>s (e.g. requests to be processed) over a set of servers rather than a single one, in order to make the overall process more efficient.<br \/>Auto scaling consists in automatically adjusting computing capacity (i.e. the number of servers behind the load balancer) according to load (which can be measured, for example, by the number of requests per minute).<\/li><li>Allow invoicing according to usage: invoicing is done per millisecond of execution. If the function is not executed, you simply won&#8217;t be billed.<\/li><\/ul><p>As there is no server running all the time, function execution must be triggered by events.<\/p><p>The sources of events can be very diverse: you can <strong>trigger the execution of a function<\/strong> when a file is uploaded to an S3 bucket, when a record is added to a DynamoDB table, in response to an HTTP request (via integration with the <a href=\"https:\/\/datascientest.com\/en\/api-the-path-to-seamless-integration\">API Gateway service),<\/a> or simply via scheduling (you can decide to invoke the function periodically, every minute or hour for example).<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5c200618 e-flex e-con-boxed e-con\" data-id=\"5c200618\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5fe4fb00 elementor-widget elementor-widget-heading\" data-id=\"5fe4fb00\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Some use cases<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7339fe57 elementor-widget elementor-widget-text-editor\" data-id=\"7339fe57\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The use cases for AWS Lambda functions are extremely varied, thanks to the large number of integrations with other services as source events. These include real-time data processing, file transformation and even backends for web and mobile applications.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-556cf907 elementor-widget elementor-widget-heading\" data-id=\"556cf907\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Image preview generation<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e6c1651 elementor-widget elementor-widget-text-editor\" data-id=\"4e6c1651\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>One of the most common use-case examples is the generation of thumbnails when an image is uploaded to an S3 bucket.<\/p><p>Suppose you&#8217;re developing an application that lets users upload and share images. You want users to be able to import very high-resolution photos, but you want to display low-resolution previews on the image gallery, so that it loads quickly.<\/p><p><a href=\"https:\/\/datascientest.com\/en\/aws-lambda-introduction-to-the-serverless-function\">To achieve this, you can use S3 and Lambda:<\/a> a first S3 compartment can be used to store your users&#8217; images. Using event notification, you can invoke a Lambda function each time a file is created in this compartment. This function can then generate a preview from the image, then store it in a new compartment, which will therefore contain all thumbails :<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44d7b095 elementor-widget elementor-widget-image\" data-id=\"44d7b095\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"512\" height=\"144\" src=\"https:\/\/datascientest.com\/en\/files\/2023\/10\/unnamed-9.png\" class=\"attachment-large size-large wp-image-172004\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2023\/10\/unnamed-9.png 512w, https:\/\/datascientest.com\/en\/files\/2023\/10\/unnamed-9-300x84.png 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b5a908 elementor-widget elementor-widget-text-editor\" data-id=\"7b5a908\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Thanks to this serverless, <strong>event-driven architecture<\/strong>, your application will scale automatically according to the number of uploads made by users.<\/p><p>We could easily imagine other similar applications:<\/p><ul><li>Generation of an automatic transcription (via AWS Transcribe) when an audio file is uploaded.<\/li><li>Real-time processing of data from a stream (Kinesis, Kafka).<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77c10a1e elementor-widget elementor-widget-heading\" data-id=\"77c10a1e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Web and mobile applications backends<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ae60256 elementor-widget elementor-widget-text-editor\" data-id=\"7ae60256\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Another very common application for AWS Lambda functions is backend development for mobile or web applications.<\/p><p>Indeed, you can use a Lambda function to process requests to API Gateway.<\/p><p>By also using a database such as <strong>DynamoDB,<\/strong> you can develop fully serverless backends (web, application and database layers), which will scale perfectly according to usage:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3961b9c8 elementor-widget elementor-widget-image\" data-id=\"3961b9c8\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"512\" height=\"144\" src=\"https:\/\/datascientest.com\/en\/files\/2023\/10\/unnamed-10.png\" class=\"attachment-large size-large wp-image-172005\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2023\/10\/unnamed-10.png 512w, https:\/\/datascientest.com\/en\/files\/2023\/10\/unnamed-10-300x84.png 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4ecf65e7 e-flex e-con-boxed e-con\" data-id=\"4ecf65e7\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-15fe27bb elementor-widget elementor-widget-heading\" data-id=\"15fe27bb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Further information<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66902b06 elementor-widget elementor-widget-text-editor\" data-id=\"66902b06\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>As you can see, AWS Lambda can be used for a wide variety of applications, which partly explains its growing popularity.<\/p><p>There are, however,<strong> certain limitations and complexities inherent in the use of Lambda<\/strong> functions.<\/p><p>One of these is the maximum execution time of a function, which is 15 minutes: Lambda functions are not designed to perform time-consuming tasks. For example, if you want to perform Machine Learning model training, AWS Lambda will probably not be the right choice. Function memory is also limited to 10GB, and CPU power to 6 vCPUs.<\/p><p>Another complexity is the difficulty of developing and deploying complex applications with Lambda.<\/p><p>Indeed, to create a fairly simple function, you can simply go through the AWS console:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5d64087f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5d64087f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-711b54d2\" data-id=\"711b54d2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-616a5e3c elementor-widget elementor-widget-heading\" data-id=\"616a5e3c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Further information<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3446ec71 elementor-widget elementor-widget-text-editor\" data-id=\"3446ec71\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>As you can see, <strong>AWS Lambda<\/strong> can be used for a wide variety of applications, which partly explains its growing popularity.<\/p><p>There are, however, certain limitations and complexities inherent in the use of Lambda functions.<\/p><p>One of these is the maximum execution time of a function, which is 15 minutes: Lambda functions are not designed to perform time-consuming tasks. For example, if you want to perform Machine Learning model training, AWS Lambda will probably not be the right choice. Function memory is also limited to 10GB, and CPU power to 6 vCPUs.<\/p><p>Another complexity is the difficulty of developing and deploying complex applications with Lambda.<\/p><p>Indeed, to create a fairly simple function, you can simply go through the AWS console:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35aef228 elementor-widget elementor-widget-image\" data-id=\"35aef228\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"512\" height=\"284\" src=\"https:\/\/datascientest.com\/en\/files\/2023\/10\/unnamed-12.png\" class=\"attachment-large size-large wp-image-172006\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2023\/10\/unnamed-12.png 512w, https:\/\/datascientest.com\/en\/files\/2023\/10\/unnamed-12-300x166.png 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21d523fe elementor-widget elementor-widget-text-editor\" data-id=\"21d523fe\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>But as application code grows, using the development environment integrated into the AWS console proves inefficient, if not impossible.<\/p><p>In this case, you need to develop your application locally on your computer, and have a repeatable process for packaging your code and deploying it on AWS, which can prove complex.<\/p><p>To simplify this task (and more), you can use the Serverless framework, which lets you define your Lambda functions and associated code, their integrations and other serverless resources (e.g. DynamoDB tables). Once this stack has been defined, you can deploy it on AWS very simply using the framework.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-76a9c01d e-flex e-con-boxed e-con\" data-id=\"76a9c01d\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-523a208 elementor-widget elementor-widget-heading\" data-id=\"523a208\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4540134 elementor-widget elementor-widget-text-editor\" data-id=\"4540134\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>If you&#8217;d like to find out more about AWS Lambda functions, and more generally about the architecture of IT systems in the AWS cloud, you can sign up for one of our training courses on this cloud provider.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60efc6c4 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"60efc6c4\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/aws-training\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">AWS Training Course<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Introduced in 2014, AWS Lambda is a serverless Function as a Service platform. What does this mean? What are the main use cases? That&#8217;s what we&#8217;re going to detail in this article, to explain the growing popularity of the service. What is AWS Lambda? Basically, the principle behind AWS Lambda is very simple. It&#8217;s a [&hellip;]<\/p>\n","protected":false},"author":67,"featured_media":172002,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2412],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>AWS Lambda Explained: Unveiling the Power of Serverless Functions on Amazon Web Services<\/title>\n<meta name=\"description\" content=\"Delve into the world of AWS Lambda and discover the game-changing capabilities of serverless computing on Amazon Web Services. Learn how ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/en\/aws-lambda-explained-unveiling-the-power-of-serverless-functions-on-amazon-web-services\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AWS Lambda Explained: Unveiling the Power of Serverless Functions on Amazon Web Services\" \/>\n<meta property=\"og:description\" content=\"Introduced in 2014, AWS Lambda is a serverless Function as a Service platform. What does this mean? What are the main use cases? 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