html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,issue,performed_via_github_app
https://github.com/simonw/datasette/issues/1036#issuecomment-762391426,https://api.github.com/repos/simonw/datasette/issues/1036,762391426,MDEyOklzc3VlQ29tbWVudDc2MjM5MTQyNg==,4997607,2021-01-18T17:45:00Z,2021-01-18T17:45:00Z,NONE,"It might be possible with this library: https://docs.python.org/3/library/imghdr.html

quick test of the downloaded blob:

```
>>> import imghdr
>>> imghdr.what('material_culture-1-image.blob')
'jpeg'
```

The output plugin would be cool. I'll look into making my first datasette plugin.  I'm also imagining displaying the image in the browser -- but that would be a step 2.

","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",725996507,
https://github.com/simonw/datasette/issues/1036#issuecomment-762387875,https://api.github.com/repos/simonw/datasette/issues/1036,762387875,MDEyOklzc3VlQ29tbWVudDc2MjM4Nzg3NQ==,9599,2021-01-18T17:36:36Z,2021-01-18T17:36:36Z,OWNER,"As you can see, I'm pretty paranoid about serving content with `Content-Type` HTTP headers because I'm so worried about execution vulnerabilities. I'm much more comfortable exploring that kind of thing in plugins, since that way people can opt-in to riskier features.

You found `datasette-media` which is my most comprehensive exploration of that idea so far - but there's definitely lots of room for more plugins along those lines.

Maybe even an output plugin? `.jpg` as an export format which returns the `BLOB` column for a row as a JPEG image with the correct `content-type` header (but first verifies that the binary content does indeed look like a real JPEG) could be interesting.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",725996507,
https://github.com/simonw/datasette/issues/1036#issuecomment-762385981,https://api.github.com/repos/simonw/datasette/issues/1036,762385981,MDEyOklzc3VlQ29tbWVudDc2MjM4NTk4MQ==,4997607,2021-01-18T17:32:13Z,2021-01-18T17:34:50Z,NONE,"Hi Simon

Just finding this old issue regarding downloading blobs. Nice work!

<img width=""212"" alt=""image"" src=""https://user-images.githubusercontent.com/4997607/104946741-df4bad80-59ba-11eb-96e3-727c85cc4dc6.png"">

As a feature request, maybe it would be possible to assign a blob column as a certain data type (e.g. `.jpg`) and then each blob could be downloaded as that type of file (perhaps if the file types were constrained to normal blobs that people store in sqlite databases, this could avoid the execution stuff mentioned above).

I guess the column blob-type definition could fit into this dropdown selection:

<img width=""201"" alt=""image"" src=""https://user-images.githubusercontent.com/4997607/104947000-479a8f00-59bb-11eb-87d9-1644e5940894.png"">

Let me know if I should open a new issue with a feature request. (This could slowly go in the direction of displaying image blob-types in the browser.)

Thanks for the great tool!


---

edit: just reading the rest of the twitter thread: https://twitter.com/simonw/status/1318685933256855552

perhaps this is already possible in some form with the plugin datasette-media: https://github.com/simonw/datasette-media","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",725996507,