Add a new generated field transactionId to each adunits. #1040
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Transaction ID that must be common across all participants in
this bid request (e.g., potentially multiple exchanges) (OpenRTB v2.5).
Type of change
Description of change
As a buyer integrated with several adaptors, I want to be able to know when the same impression is being offered by two or more of them. The goal of this PR is to generate a unique transaction ID in prebid.js and then distributing it through adaptors and their own integrations.
Note that OpenRTB has already introduced the notion of "source" in its 2.5 version, and in particular a "tid" field to relay this impression identifier.
Other information
This feature was first requested by #877