Clojurians Log v2
clojure-uk 2026-06-30
mogge
Morning! At the doctor, getting a followup to my emergency visit (Saturday). We're having European heat levels here this week - and it's only going down to mid-20s C at night.
Got a referral for a cardiac stress test but he thinks it's mostly nothing to worry about given the results of all the tests...
That's reassuring to hear.
The weather here in the north-east of England has cooled considerably, it's a very comfortable 21C in my office but feels cooler with the draught coming in the window.
Today I've been wrestling with the best way to write integration tests for an API (AWS API Gateway) that uses SigV4. I couldn't see how to make the Cognitect AWS API (actually the Awyeah fork for Babashka) make requests to Cognito IdP without credentials, so I ended up doing that with just a basic HTTP client. Then I couldn't find a nice way to use an API client to sign the requests, so I had to mostly DIY that too, using com.grzm.awyeah.signers. If there's a better way, please let me know!
The regular cognitect AWS API lib is now compatible with bb
the newest version
of both
@borkdude thanks, that's good to know. I will look into switching my deps.
@borkdude I switched to the Cognitect version and confirm that main library works, but I ran into a problem with the cognitect.aws.client.test-double namespace:
> bb repl
Babashka v1.12.218
Type :repl/help for help
user=> (require '[babashka.deps :as deps])
nil
user=> (deps/add-deps {:deps '{com.cognitect.aws/api {:mvn/version "0.8.824"}}})
nil
user=> (require '[cognitect.aws.client.test-double :as aws])
clojure.lang.ExceptionInfo: Babashka's deftype supports full map types (add IPersistentMap to the interface list). Alternatively, use reify for individual interfaces like ILookup. [at <repl>:1:1]Let me know if I should report this somewhere else. It's not a show-stopper as I can continue with awyeah for these unit tests for now.
what is test-double for? does awyeah-api have it? yes report it in #aws-api
and ping the maintainers there
test-double provides an implementation of the client for mocking.
and awyeah has this?
👍