@kenny we have a support ticket logged for that problem (although we call API gateway, but get the same error returned in the body of the HTTP response). @jaret can tell you more about the status.

@stijn not sure if it's related, but to add to kenny's comment, i get this error the first time i run an ion from API Gateway: java.io.IOException: Premature EOS, presumed disconnect

first time after each deployment, and no matter how long i wait to invoke it

Hey ya'll -- noob datomic question: I have a bunch of records called "intents". These should have very rarely been updated in the last 1-2 years. I want to find all the records that have been updated in the last 2 years

I'm reading through time-rules https://github.com/Datomic/day-of-datomic/blob/master/tutorial/time-rules.clj and so far made something like this

(d/q '[:find (max ?t) (max ?inst)
       :in $ %
       :where
       [?e :intent/uuid]
       (entity-at ?e ?tx ?t ?inst)]
     (d/history (db)) time-rules)

Has anyone come up with fns/rules to help detect when you're about to transact schema that would violate http://blog.datomic.com/2017/01/the-ten-rules-of-schema-growth.html? I'm aware of Conformity and the other migration libraries, but I'm more interested in detecting breaking schema changes.

@robert.mather.rmm I wrote this to detect breaking changes in our schema.

how can I check if an entity is a component of another entity?

Transaction functions should return a seq of :db/{add|retract} statements right? So what's the right syntax for invoking an installed tx fn? 1. (d/transact conn {:tx-data '(my.namespace/my-fn! arg1 arg2)}) 2. (d/transact conn {:tx-data ['(my.namespace/my-fn! arg1 arg2)]}) 3. Something else?

I see style 2 in https://docs.datomic.com/cloud/transactions/transaction-functions.html#text-calling

But when I call using that style, I get this error: clojure.lang.ExceptionInfo: clojure.lang.LazySeq cannot be cast to java.lang.Number

I can test locally like: (d/transact conn {:tx-data (my.namespace/my-fn! db-val arg1 arg2)}) and it works fine

nevermind, the problem was elsewhere

it was because arg2 to my tx fn was a function call itself that needed to eval before sending to the transactor, and I forgot that quoting (`'()`) would recursively prevent evaluation inside the list. I switched to a vector and just quoted the tx fn symbol and it worked.

my mind isn't used to mixing local and remote evaluation like that