I m getting an error in our pipelines this morning that is n Pact Foundation #pactflow

I'm getting an error in our pipelines this morning...

David Mason

07/28/2025, 8:05 AM

I'm getting an error in our pipelines this morning that is new. I can't see how it is caused by changes our end. Any changes made recently to pactflow? Our pactflow /matrix endpoint is returning 404 😞

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FAILED integration_tests/pact/v3/test_can_i_merge.py::test_can_i_merge - RuntimeError: can-i-merge failed: Error retrieving matrix. PactBroker::Client::Hal::ErrorResponseReturned - Error making request to <https://xxx-xxx.pactflow.io/matrix> status=404 Not Found. The requested document was not found on this server.

Using pact-cli to run can-i-merge (unchanged):

docker run --rm pactfoundation/pact-cli:latest pact-broker can-i-merge --broker-base-url={pact_broker_base_url} --broker-token={pact_broker_token} --pacticipant a --pacticipant b

David Mason

07/28/2025, 8:21 AM

looks like it should have made a url like

/matrix/provider/{provider}/consumer/{consumer}?

but for some reason didn't

Yousaf Nabi (pactflow.io)

07/28/2025, 9:41 AM

i’ll take a look, we deployed a new docker image but it shouldn’t have affected that command

Matt (pactflow.io / pact-js / pact-go)

07/28/2025, 9:53 AM

Any chance you could please provide it with a

--verbose

command? (redacted as necessary)

Yousaf Nabi (pactflow.io)

07/28/2025, 10:26 AM

I would expect this command to fail

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docker run -e PACT_BROKER_BASE_URL -e PACT_BROKER_TOKEN --rm pactfoundation/pact-cli:latest pact-broker can-i-merge --pacticipant "Example API" --pacticipant "Example App"

with this message

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The version must be specified using `--version VERSION`, `--branch BRANCH` `--latest`, `--latest TAG`, or `--all TAG` for pacticipant Example API, Example App

You should have two version numbers here, one after each pacticipant, assume you are checking in this command that 2 applications, are both safe to merge their respective versions.

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-a, --pacticipant=PACTICIPANT                      # The pacticipant name. Use once for each pacticipant being checked.
  -e, [--version=VERSION]                            # The pacticipant version. Must be entered after the --pacticipant that it relates to.

Yousaf Nabi (pactflow.io)

07/28/2025, 10:31 AM

two applications, with versions, they both relate to the same integration pair - note 1 entry in matrix

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docker run -e PACT_BROKER_BASE_URL -e PACT_BROKER_TOKEN --rm pactfoundation/pact-cli:latest pact-broker can-i-merge --pacticipant "Example API" --version 4fdf20082263d4c5038355a3b734be1c0054d1e1 --pacticipant "Example App" --version 5556b8149bf8bac76bc30f50a8a2dd4c22c85f30
Computer says yes \o/

CONSUMER    | C.VERSION  | PROVIDER    | P.VERSION  | SUCCESS? | RESULT#
------------|------------|-------------|------------|----------|--------
Example App | 5556b81... | Example API | 4fdf200... | true     | 1

VERIFICATION RESULTS
--------------------
1. <https://smartbear-api-hub.pactflow.io/pacts/provider/Example%20API/consumer/Example%20App/pact-version/cc79bbc141aa53a4fd45d155d705cbb243dec4b6/metadata/Y3ZuPTU1NTZiODE0OWJmOGJhYzc2YmMzMGY1MGE4YTJkZDRjMjJjODVmMzA/verification-results/1> (success)

All required verification results are published and successful

and with two applications which belong to different integrations. note 2 entries in matrix

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docker run -e PACT_BROKER_BASE_URL -e PACT_BROKER_TOKEN --rm pactfoundation/pact-cli:latest pact-broker can-i-merge --pacticipant "Example API" --version 4fdf20082263d4c5038355a3b734be1c0054d1e1 --pacticipant "pactflow-example-consumer-js-kafka" --version 1d015de190faec9c19f33531204bc41c804bd5da
Computer says yes \o/

CONSUMER                           | C.VERSION  | PROVIDER                             | P.VERSION  | SUCCESS? | RESULT#
-----------------------------------|------------|--------------------------------------|------------|----------|--------
Example App                        | 5556b81... | Example API                          | 4fdf200... | true     | 1
pactflow-example-consumer-js-kafka | 1d015de... | pactflow-example-provider-java-kafka | 3f21e6d... | true     | 2

VERIFICATION RESULTS
--------------------
1. <https://smartbear-api-hub.pactflow.io/pacts/provider/Example%20API/consumer/Example%20App/pact-version/cc79bbc141aa53a4fd45d155d705cbb243dec4b6/metadata/Y3ZuPTU1NTZiODE0OWJmOGJhYzc2YmMzMGY1MGE4YTJkZDRjMjJjODVmMzA/verification-results/1> (success)
2. <https://smartbear-api-hub.pactflow.io/pacts/provider/pactflow-example-provider-java-kafka/consumer/pactflow-example-consumer-js-kafka/pact-version/ebb65a4dd6311149553fce62d501a70850d1be9f/metadata/Y3ZuPTFkMDE1ZGUxOTBmYWVjOWMxOWYzMzUzMTIwNGJjNDFjODA0YmQ1ZGE/verification-results/200> (success)

All required verification results are published and successful

Yousaf Nabi (pactflow.io)

07/28/2025, 10:33 AM

looks like it should have made a url like
/matrix/provider/{provider}/consumer/{consumer}?
but for some reason didn’t

That is incorrect, the matrix is not aware of consumer/provider when providing participant. It is just checking where each specification application is safe to deploy, given the particular version This is the path that would be accessed

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<- "GET /matrix?q[][pacticipant]=Example+API&q[][version]=4fdf20082263d4c5038355a3b734be1c0054d1e1&q[][pacticipant]=pactflow-example-consumer-js-kafka&q[][version]=1d015de190faec9c19f33531204bc41c804bd5da&latestby=cvpv&latest=true&mainBranch=true

David Mason

07/29/2025, 9:37 AM

Hello both, you seem to be correct, I missed some parts of the command in my haste to get a message out. For wahtever reason this no longer reproduces. I guess it was a blip and fixed itself. In the meantime I decided to skip the test and now can-i-merge fails :S I hope this doesn't happen too often!

with a
--verbose
command

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opening connection to <http://xxx.pactflow.io:443|xxx.pactflow.io:443>...
E           opened
E           starting SSL for <http://xxx.pactflow.io:443|xxx.pactflow.io:443>...
E           SSL established, protocol: TLSv1.3, cipher: TLS_AES_128_GCM_SHA256
E           <- "GET /matrix?q[][pacticipant]=A&q[][version]=4e0faf164c777fc8f30eebd4d3f0d3abaa72e832&q[][pacticipant]=Bc&q[][version]=4e0faf164c777fc8f30eebd4d3f0d3abaa72e832&latestby=cvpv&latest=true&mainBranch=true HTTP/1.1\r\nAccept: application/hal+json\r\nUser-Agent: Ruby\r\nAuthorization: [redacted]\r\n"

Yup that looks like expected. Time to see if I can push some verifications and get things green again

👍 1

David Mason

07/29/2025, 9:38 AM

Thank you for your help, sorry it turned out to be something weird on my end

👍 1

David Mason

07/29/2025, 9:49 AM

OK, we're all good with our can-i-merge. We'd just merged something and it takes a little time for it to publish

Yousaf Nabi (pactflow.io)

07/29/2025, 10:21 AM

no worries David, thanks for reaching out and coming back to us to confirm

Matt (pactflow.io / pact-js / pact-go)

07/30/2025, 4:17 AM

No probs - glad you’re back on track!

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