Download panel ignores accesssion filter

[chaoran-chen]

On this page with an active accession filter, if I download the metadata, I get all metadata instead of only the data of one sequence.

[chaoran-chen]

This is not easy to implement for a large list of accessions/for a query that exceeds the limits of a GET request. At least as far as I could find out, it is not possible to open a new page (to download a file) from a POST request with JSON data. It is possible if we send the query as form-data but that is not supported by LAPIS.

@corneliusroemer, @theosanderson - what do you think, how should we proceed and prioritize this issue? Should we not support the download if the user filters for a large list of accessions, or do you think that this is important and we should add support for form-data requests in LAPIS in the short term?

[theosanderson]

Thanks for investigating this. This is a feature I believe is really quite useful. IMO if we don't support it we should probably remove the ability to enter multiple accessions entirely. I don't have a sense of how hard it would be to do in LAPIS. A potential alternative would be to have an intermediate astro route that converts the form data into JSON and calls LAPIS and streams the result from LAPIS back.

[chaoran-chen]

Yeah, that sounds like a good alternative! That might be the easiest thing to do.

[chaoran-chen]

We will add form data support to LAPIS: GenSpectrum/LAPIS#754