update doc

etc.jl

@@ -0,0 +1,56 @@
+using HTTP, Arrow, JSON, DataFrames
+
+df = DataFrame(id = 1:10_000, val = rand(10_000))
+
+file_server_url = "http://192.168.88.104:8080"
+url_getUploadID = "$file_server_url/api/upload"
+
+function upload_to_plik(url, df)
+    # 1. Build the Request object manually
+    headers = [
+        "X-Plik-TTL" => "5m",
+        "Content-Type" => "application/octet-stream",
+        "Transfer-Encoding" => "chunked"
+    ]
+    
+    # We create a request with an empty body, but we'll stream into it
+    req = HTTP.Request("POST", url, headers)
+
+    # 2. Open the connection manually to get a raw Stream
+    local_url = ""
+    HTTP.open("POST", url, headers) do stream
+        # WRITE PHASE
+        # Arrow.write handles the 'chunked' encoding automatically
+        Arrow.write(stream, df; file=false)
+        
+        # CLOSE WRITE / START READ
+        # This is the critical hand-off. 
+        # We tell the kernel we are done sending.
+        HTTP.closewrite(stream)
+        
+        # Now we wait for the server's response
+        resp = HTTP.startread(stream)
+        
+        # Handle the body
+        if resp.status == 200 || resp.status == 201
+            payload = read(stream, String)
+            # Depending on Plik version, it might return the URL directly 
+            # or a JSON object. Adjust accordingly:
+            try
+                local_url = JSON.parse(payload)["url"]
+            catch
+                local_url = payload # Fallback if it's a raw string
+            end
+        else
+            error("Plik rejected upload with status: $(resp.status)")
+        end
+    end
+    
+    return local_url
+end
+
+url = upload_to_plik(url_getUploadID, df)
+
+
+
+