Experience with building websites with HTML and JavaScript.See How To Get Started with Node.js and Express. Familiarity with building APIs with Express in Node.js.Follow How to Install Node.js and Create a Local Development Environment. A local development environment for Node.js.To complete this tutorial, you will need: You’ll also handle requests made to your API that cannot be processed in parallel. When you’re finished, you will have a good grasp on handling binary data in Express and processing them with ffmpeg.wasm. You can use the same techniques to add other features supported by FFmpeg to your API. You’ll build an endpoint that extracts a thumbnail from a video as an example. In this guide, you will build a media API in Node.js with Express and ffmpeg.wasm - a WebAssembly port of the popular media processing tool. Particularly at a smaller scale, it makes sense to add media processing capability directly to your Node.js API. However, the extra cost and added complexity may be hard to justify when all you need is to extract a thumbnail from a video or check that user-generated content is in the correct format. Using dedicated, cloud-based solutions may help when you’re dealing with massive scale or performing expensive operations, such as video transcoding. Handling media assets is becoming a common requirement of modern back-end services. The author selected the Electronic Frontier Foundation to receive a donation as part of the Write for DOnations program.
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