Use pgstac api to get item rather than direct query

[bitner]

In PGStac 0.5.0, the data stored in the items table is compressed by removing information that is stored at the collections level. Directly querying the items table will only return part of the json. By using the get_item function, it will return the fully hydrated item feature.

[vincentsarago]

This doesn't seems to be compatible with <0.5.0. Let's wait for it to be released then

[vincentsarago]

@bitner Would it be the same (performance wise) to use the search function, so we can support pgstac<0.5.0?

[bitner]

Yes, the only difference being that using search will return a Feature collection with a single feature - the advantage of using search is that you could also use the fields extension if there was only limited information that you needed from the item. I can tweak the PR.

[vincentsarago]

👍 let's use the search function then. No need to add more complexity with the field extension, the idea is to get the full item

[vincentsarago]

🙏 thanks @bitner