Message queues support for C++ | Voters

Message queues support for C++

Lukasz Malek

My company have a requirement to enable both ways communication with embedded device that runs C++ client, using the queues. I would like to ask if adding support for this is currently considered? Any chance this could be provided in short/medium perspective?

April 11, 2023

Matt Fellows

Thanks Lukasz! For the meantime, you might be able to work around it using the CLI tools: https://docs.pact.io/implementation_guides/other_languages

Lukasz Malek

Matt Fellows: But is this functionality support in the game?

Matt Fellows

Lukasz Malek: Sorry I'm not sure what you mean there. We haven't got any plans if that's what you're asking?

If the CLI as an option isn't workable, you could alternatively contribute the feature to C++ directly? (if so, please join this channel https://pact-foundation.slack.com/archives/C02BXLDJ7JR and chat with us)

Lukasz Malek

Matt Fellows: Yeah, if you have any plans of implementing support for the queues is what i was asking for :) Thank you for fast response, i will dig in the cli option to see how could i achieve the same and if this may work for us.

Best regards

Lukasz Malek

Matt Fellows: Well, im affraid cli version doesn't support scenario which i require, or eventually i cant use it properly. I tried to use CLI pact-message and pact stub/mock service from standalone ruby implementation 1.92.0 to serve me a messages specified in the pact file, so i could run consumer tests, but it failed. Would that be possible to send me invite for slack channel you shared? Perhaps there i could learn some more on how could i achieve this

Yousaf Nabi

Lukasz Malek: you can join via slack.pact.io, it should provide you an invite link.
The Rust based CLI tools rather than Ruby ones you have used will provide a better experience for V3/V4 pact specifications, and the former does not support them.
https://github.com/pact-foundation/pact-reference/tree/master/rust/pact_mock_server_cli
https://github.com/pact-foundation/pact-reference/tree/master/rust/pact_verifier_cli
Regarding pact-cplusplus 
https://github.com/pact-foundation/pact-cplusplus/tree/master/consumer
The implementation wraps the pact_ffi library, which exposes all the latest pact functionality, it is feasible for your team to extend this and bring in the ffi functions you require to the DSL.
https://docs.pact.io/implementation_guides/other_languages#native-c-interface-integration-v2v3v4-specification-support
There was another team asking about the library a few weeks ago, so there may in interest in community collaboration.

Lukasz Malek

Yousaf Nabi: Thank you very much for support. Im gonna give it a try with another client. Also joined the slack. Thnx a lot