What is the 'tid' attribute in the /service/extdirect API payload?

[Haani Niyaz]

I recently discovered a potential bug in the Nexus 3 User API where roles aren't returned:

https://issues.sonatype.org/browse/NEXUS-25529

I know I can use a GET /service/extdirect endpoint to get the right results I need. However there is a tid attribute which seems to take an int and from what I can tell accepts an arbitrary value.

I'm developing a REST API client in Go and would like to get past this hurdle until the aforementioned issue is fixed. Can I get some context around 'tid' attribute in the RPC call:

{"action":"coreui_User","method":"get","data":["d12345","Crowd"],"type":"rpc","tid":70}

Thanks.

[Wes Wannemacher]

In the NXRM code, that extdirect endpoint is managed by / consumed as an external dependency. At one point, it was an open source project, but the upstream seems to have been abandoned. Instead, we have maintained our fork here: https://github.com/sonatype/directjngine. On our dev team, we prefer to use REST endpoints and I would consider the use of the extdirect endpoint to be "deprecated" (as in, for new development, we use REST). That being said, hopefully you can reverse engineer what is expected for that `tid` value. 

-Wes

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[Matthew Piggott]

The specification for ExtDirect is publicly available - https://docs.sencha.com/extjs/6.0.2/guides/backend_connectors/direct/specification.html

The tldr is multiple requests are multiplexed into a single request and the tid is used to identify the response for a given request. If you're only sending one request at a time any integer ought to work on the request and you can ignore it on the response.

[Haani Niyaz]

Thanks Matthew, that definitely helps.