Concatenate Videos with node.js in AWS Lambda

Question

Im wondering if it's possible to merge (concatenate) two video clips into one with an AWS Lambda function using Node.js?

The dependency that I was going to use is ffmpeg (or fluent-ffmpeg), but from what I can tell, all the APIs use the actual file path, not the file variables. I download the actual video files from an S3 bucket so I can't use the path's... can I?

I haven't found a single example that uses file variables. If there's a better way to do this that Im not thinking of, feel free to share! Thanks for the help as always.

Answer 1

I found a way around it! All I needed to do was save the object body from the item I get from S3 to a file on the local Lambda file system. Not sure why I didn't think of this in the first place. I ended up doing

fs.writeFile("out.mp4", item.Body, (err) => {
        if(err) console.log(err);
        console.log("Body saved!")
});

Hopefully this answer helps someone that comes across a similar mental block in the future.