Prebid Core: Restore use of server-side adapter without client-side adapter

[jorgeluisrocha]

Type of change

• Bugfix

Description of change

Fixes a bug that requires client-side adapter codes to be imported for server-side bidding. This obviates the need to import client-side adapter specifications. Additionally, this resolves the regression introduced by the original version of this PR found in #7662.

Other information

Issue: #6361
Issue: #6388

[FilipStamenkovic]

@jorgeluisrocha Looking at the test coverage, not a single test goes through your changes:

Can you add at least one test for the changes you did?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[ChrisHuie]

@jorgeluisrocha following up on this pr. Are you still working on this pr to add a little test coverage?

[patmmccann]

@karimMourra can you weigh in here? this seems stalled

[karimMourra]

Hi @patmmccann , Jorge will add unit tests to this PR when he has enough bandwidth

[ChrisHuie]

@karimMourra @jorgeluisrocha following up on this pr. Is it okay if I close this pr for now and it is just reopened when bandwidth provides

[bretg]

This PR is related to issue #6361

For the record, client-side bid adapters defines 4 things that could be important to server behavior:

1. MediaTypes
2. Aliases
3. GVLID
4. transformBidParams

#1-3 are ok -- either they can be defined in s2sConfig as needed or they're also defined server-side.

A few bidAdapters do however, require transformBidParams() Those ones may not work well if the client-side adapter is not present.

[dgirardi]

This was incidentally fixed in #8357; just verified that no client side adapters are needed now for interfacing with Server.