Hi. I’m using the aws-api to upload a file to S3, and I want to set the Content-Type. I converted a java example I found to roughly this code:

(let [md       {"content-type" "text/plain"}
      response (core/throw-on-error
                 (aws/invoke client
                             {:op      :PutObject
                              :request {:Bucket   ""
                                        :Key      "marc/foo2.txt"
                                        :Body     (-> "some text" (.getBytes "UTF-8") (ByteArrayInputStream.))
                                        :Metadata md}}))]
  (:Body response))

(aws/doc client :PutObject) call that @mlimotte and check out the :ContentType option

content type might be special in that it won't appear in Metadata

@ghadi Yep--- that resolved the issue. Was not aware of that divergence from the java sdk. Thanks.

aws-api is generated from descriptor files, which is similar to how the java v2 sdk is generated (but java v1 sdk is ad hoc)