Support new meta field: DemandSource

[bretg]

Prebid.js metadata has been expanded to include a new field DemandSource. This maps to seatbid.bid.ext.prebid.meta.demandsource in ORTB2

While 'NetworkName' is a Bidder-specific network/DSP name, 'DemandSource' is a Bidder-specific business entity used for bid adapters that can 'white-label' other sources.

For both PBS-Go and PBS-Java, please add DemandSource as an allowed value in seatbid.bid.ext.prebid.meta coming from the adapters and update the relevant documentation.

[SyntaxNode]

'DemandSource' is a Bidder-specific business entity used for bid adapters that can 'white-label' other sources.

How is that different from a publisher provided alias?

[bretg]

It's basically a bidder-supplied alias. Yes, another layer of multiplexing. Apparently bids from the grid bidder can come from several actual sources.

[bretg]

done in PBS-Java 1.83

[SyntaxNode]

PBS-Go already supports DemandSource metadata. We just need to update the docs.

[SyntaxNode]

Documentation has merged.