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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