How to get parquet file schema in Node JS AWS Lambda?

Question

Is there any way to read a parquet file schema from Node.JS? If yes, how?

I saw that there is a lib, parquetjs but as I saw it from the documentation it can only read and write the contents of the file.

Answer 1

After some investigation, I've found that the parquetjs-lite can do that. It does not read the whole file, just the footer and then it extracts the schema from it.

It works with a cursor and the way I saw it there is two s3.getobject calls, one for the size and one for the given data.