How would you do that with cognitect aws api?

You can also try https://github.com/grzm/awyeah-api which works from source

Sorry, I suppose the question is a bit wider, where is the http client in babashka then? Is it inside the client? I've seen references to curl, but I'm not sure I should be calling on curl in a lambda context?

I'm using it for the first time to do some lambda development, so I'm still unfamiliar with the environment 😃

@U0JUM502E Ah right. For http you have the following options:

- babashka.curl
- org.httpkit.client
- java.net.http

Calling curl from a lambda context, not sure if it works, but you have the other options as well

So for example, I just add:

java-http-clj/java-http-clj {:mvn/version "0.4.3"}

you add it to bb.edn

which is similar to deps.edn in this regard

Ah ok

So what's the relationship between them, there are some examples where they suggest putting it in deps.edn, are they independent?

bb does not read from deps.edn by default

there might be outdated examples - if you can point me to those, please let me know

I don't know if they're ones you control or if it's just using a different paradigm, for example this was super confusing. I assume it works some other way... https://github.com/FieryCod/holy-lambda/tree/master/examples/bb/native/cognitect.aws.api

Ok, that seems to be working 😃... Not sure if it's going to break when it comes time to deploy it, which is what I'll test next! Thanks for your help @U04V15CAJ 😃...

Sure! Let me know if you have any further questions :)

@U0JUM502E this is example of using cognitect AWS API with native backend whereas you’re using babashka one ;D

Makes sense, thanks

@U04V15CAJ, just trying out clj-http instead and I'm getting this:

(require '[clj-http.client :as client])
: Unable to resolve classname: org.apache.commons.codec.binary.Base64 humble-aws-fn.core 

I've added imports, but it seems to not be picking it up? Basically I need form handling for the http client, so I can send forms, which java-http-clj doesn't appear to cover?

What's form handling?

Can you give an example?

Sure, for example:

(http/post ""
  {:headers {"ContentType" "application/json"}
   :body {"id" 1234567 "data" {"a" "a"}}})

@U0JUM502E Ah right. I think for this to work you just have to do something like this:

(require '[clojure.string :as str])
(defn encode [v] (java.net.URLEncoder/encode v))
(defn encode-map [m] (str/join "&" (reduce-kv (fn [acc k v] (conj acc (str k "=" (encode v)))) [] m)) )
(encode-map {"a" "1" "b" "foobar$123"}) ;;=> "a=1&b=foobar%24123"

But I think it's reasonable if java-http-clj would do this for you with the given content type. What do you think @U3L6TFEJF?

Hmm, ok, that should work I think but there's the server isn't accepting it, so there's some gap. I'm going to try and work out what...

Cool. Maybe you can also use hato which is closest to clj-http

I'll be back in an hour after dinner. For hato you need to add babashka spec alpha to your bb edn I think too

Ok, this seems to work now

I didn't realise the form encoding step could be done that easily, I remember having to setup some object and do some setting etc when I was in jsland. Giving hato a look

Hmm, not sure how to use it, after I added it to bb.edn. When required it I got Could not find namespace: clojure.spec.alpha adding clojure.spec.alpha to bb.edn and deps.edn didn't seem to help. EDIT: Ahh, just spotted the message about a special version of spec alpha

@U0JUM502E Add this to your bb.edn:

org.babashka/spec.alpha {:git/url ""
                         :git/sha "1a841c4cc1d4f6dab7505a98ed2d532dd9d56b78"}

(require '[org.httpkit.client :as client])
@(client/post "" {:form-params {"a" "foo bar"}})

Oh, I didn't realise there was a builtin 😃

Yeah, it's https://github.com/http-kit/http-kit :) So we have three options in bb: • bb.curl • httpkit client • java.net.http

Ah

And even a fourth one: HttpUrlConnection and clj-http-lite which is based on that (external library)

That's a fair bit of choice