Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

#IssueNotes/JiraDecision
1What topic to use for client?Topic provided by client as a parameter which will be injected into our environment and used for asynchronous requests sent back to client.To be supplied by cient
2What topic to use for private DMI-NCMP?e.g. ncmp-async-private but decision needs to be made with current best practices.
3Are adding a new REST endpoint for async or modifying an existing endpoint?


To facilitate asynchronous requests to DMI we will need to either create a new endpoint or modify existing endpoint to include /async flag. The second solution may not be backwards compatible. However creating a new endpoint solely for a flag is also not ideal. We could add async to list of options (but this might interfere with the purpose of /options.

Additionally, considered adding a new endpoint for async which simply re-routes the response to the original endpoint while adding the logic for OK response to the client. However, would this lead to a change in the schema? If so, would this be backwards compatible?

Jira
serverONAP Jira
serverId425b2b0a-557c-3c0c-b515-579789cceedb
keyCPS-830

/ncmp/v1/data/ch/123ee5/ds/ncmp-datastore:*?topic=<topic-name> 
4Agree URL for async once #2 is clarifiedCPS R10 Release Planning#NCMPRequirements #11. Based on this additional path parameter we no longer require additional /async flag in url.

/ncmp/v1/data/ch/123ee5/ds/ncmp-datastore:*?topic=<topic-name> 


5Passthrough request need to be able to handle different response types (using accept header) but the async option would have a fixed and possibly different response type.CPS R10 Release Planning#NCMPRequirements #11.We should, by default, be able to accept multiple contnet-types.
6Should we create a standalone app to demo or are tests sufficient?

CSIT tests may require more involved effort - perhaps we could add standalone app to nexus and use it as part of CSIT test?

see #13
7

Do we need to persist the generated requestID?

We should be be statelessNo
8Error Reporting
Out of scope
9

Async Request Option using Messaging

See:  AsyncRequestOptionusingMessagingOut of scope
10Do we actually require futures in this implementation proposal?

It could be argued that the need for futures is made redundant by the fact we call dmi from ncmp through rest and the response will be consumed via Kafka.

What benefit would future give us in this case? 

Not needed
11ID GenerationWhich mechanism to use? Look at CPS-Temporal and follow to keep consistency
12Are there any Kafka specific environment variables or config variables to be set for this work?We will need to add new topic for DMI → NCMP M2M Kafka - which file(s)?
13Can robot framework verify if Kafka events have been sent/receivedThis would be less work and overhead (rather than creating/.maintaining client app)
14Can Webflux do this work with less code/impl?

15ONAP may be deprecating PALINTEXT for Kafka. Strimzi Kafka might need to be used

...