s4

An implementation of the S3 API in clojure, using konserve as the backing store.

Usage

(def s4 (s4.core/make-server! {}))

(def port (-> @s4 :bind-address (.getPort)))
(swap! (-> @s4 :auth-store :access-keys) assoc "ACCESSKEY" "SECRETKEY")

(def s3-client (cognitect.aws.client.api/client
                 {:api :s3
                  :credentials-provider (cognitect.aws.credentials/basic-credentials-provider {:access-key-id "ACCESSKEY"
                                                                                               :secret-access-key "SECRETKEY"})
                  :endpoint-override {:protocol "http"
                                      :hostname "localhost"
                                      :port port}}))
(cognitect.aws.client.api/invoke s3-client {:op :ListBuckets})

Includes:

• Lots of the S3 HTTP API (some of it still needs work).
• Support for AWS authentication, with pluggable authenticator providers.
• A cost estimator, which estimate costs for operations, data transfer, and data storage.
• A pluggable storage backend, so you can store things in memory for unit tests, on disk, or elsewhere.

Why?

I wanted to run unit tests against an S3 facade, and that fakes3 thing both now requires a license key, and it isn't compatible with the S3 API enough to make the cognitect client happy.

So I'm coding this out of spite.