Hi, I am trying to implement Pact as contract testing for our company. Currently I do not understand following: • I have got working test on consumer service and verify on provider service • when consumer service is built and

can-i-deploy

passes new contract is published to pact broker (this is in build pipeline) • this publishes contract e.g.

consumer 1.0 & provider 1.0

◦ when I deploy

consumer 1.1

this will publish contract

consumer 1.1 & provider 1.0

◦ when I deploy

consumer 1.2

this will publish contract

consumer 1.2 & provider 1.0

now my question is if I deploy

provider 1.1

how do I publish new contract between consumer and provider? I guess in this case if we follow the above example if

provider 1.1

is deployed then contract between

consumer 1.2 & provider 1.1

should be published? how do I publish this new contract new consumer builds? or am I missing something?

You don't get a new contract in that case, the new version of the provider just needs to verify against the same contract party parrot

I’d like to clarify the use of language here Adam, as it’s important:

when consumer service is built and can-i-deploy passes new contract is published to pact broker (this is in build pipeline)

this publishes contract e.g. consumer 1.0 & provider 1.0

Publishing should happen before running

can-i-deploy

and deployment of code. You should publish on every build, and use branches and releases to document what you are working on, and when you have deployed. You then use consumer version selectors on the provider side, to verify the appropriate contracts.

when I deploy consumer 1.1 this will publish contract consumer 1.1 & provider 1.0

See above. If you deploy a consumer 1.1 that should use the

record-deployment

command. This can only happen after publishing of a contract

when I deploy consumer 1.2 this will publish contract consumer 1.2 & provider 1.0

as per above.

now my question is if I deploy provider 1.1 how do I publish new contract between consumer and provider?

I guess in this case if we follow the above example if provider 1.1 is deployed then contract between consumer 1.2 & provider 1.1 should be published? how do I publish this new contract new consumer builds? or am I missing something?

No, you don’t. The contract is published from the consumer always. The provider verifies the contracts. If there is a new version, you just push the code and let it verify any existing contracts. I’d recommend https://docs.pact.io/pact_nirvana and the CI/CD workshop