[Pulp-dev] Single-Table Content API Changes, Performance Discussion
Jeff Ortel
jortel at redhat.com
Mon Nov 26 15:55:17 UTC 2018
On 11/20/18 11:31 AM, Dennis Kliban wrote:
> On Mon, Nov 19, 2018 at 6:20 PM Daniel Alley <dalley at redhat.com
> <mailto:dalley at redhat.com>> wrote:
>
>
> Some of the API changes that are required by single-table-content
> would be beneficial even if we didn't go forwards with the
> modelling changes. For instance, currently we have single
> endpoints for each of repository_version/.../content/,
> .../added_content/, and .../removed_content/ which mix content of
> all types together. This makes it impossible for clients to
> expect the data returned to expect any particular schema. What
> the single-table-content does is to provide separate query urls
> for each content type present in the repository version, which I
> believe is a usability win for us, and it's something we could
> implement without using any of the modelling changes.
>
>
> The current behavior of the 'content' APIs is already causing a
> problem for our OpenAPI 2.0 schema. OpenAPI 2.0 does not support
> polymorphic responses. We are currently tracking problem with a
> bug[0]. The only way to resolve this problem is to provide APIs that
> return heterogeneous types.
>
> [0] https://pulp.plan.io/issues/4052
>
> Besides being a general update, I'd like to start a discussionto
> understand: is changing the Pulp 3 API so that it's organized
> around content type URLs OK with everyone? This resolves the
> usability issues of returning mixed types. Are there any downsides
> with this approach?
>
> To clarify what I mean on that last point -- by "content type
> URLs" I mean that where you currently get back the url
> "/pulp/api/v3/repository_version/.../content/" under the
> "_content" field on a repoversion, you would instead get back
> something like
>
> { "pulp_file.filecontent":
> "/pulp/api/v3/content/file/files/?repository_version=.. }
>
>
> I am +1 to making this change to our REST API.
+1
>
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