feat(dsp): add negotiations/offer
endpoint
#3854
Merged
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What this PR changes/adds
Add the
negotiations/offer
endpoint, that can be used by a provider to start a negotiation.Why it does that
dsp compliance
Further notes
ContractOfferMessage
I had to move the extraction of the counter party id from the contract validator to theProtocolTokenValidator
, that returns aServiceResult<ParticipantAgent>
now. I left the old methods and I will align the missing services (transfer process and catalog) to the new behavior in a subsequent PR.ContractRequestMessage
for thecallbackAddress
property to the JsonLdValidator instance, because it didn't make much sense in the controller (and it wasn't properly tested too).Linked Issue(s)
Closes #3840
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