Add bash client example for testing backgrounded operations

client-examples/bash/upload.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+set -xe
+
+upload_ids=$(
+  curl \
+    -F "images[]=@../cat.jpg" \
+    -F "images[]=@../earth.gif" \
+    -F "images[]=@../scene.webp" \
+    -F "images[]=@../test.png" \
+    -F "images[]=@../earth.gif" \
+    'http://localhost:8080/image/backgrounded' | \
+  jq '.uploads[].upload_id' | \
+  sed 's/"//g'
+)
+
+for upload in $(echo $upload_ids)
+do
+  echo "Processing for $upload"
+
+  json=$(curl "http://localhost:8080/image/backgrounded/claim?upload_id=$upload") 
+  delete_token=$(echo $json | jq '.files[0].delete_token' | sed 's/"//g')
+  filename=$(echo $json | jq '.files[0].file' | sed 's/"//g')
+
+  details=$(curl "http://localhost:8080/image/details/original/$filename")
+  mime_type=$(echo $details | jq '.content_type' | sed 's/"//g')
+
+  echo "Original mime: $mime_type"
+
+  curl "http://localhost:8080/image/process_backgrounded.webp?src=$filename&resize=200"
+  sleep 1
+  details=$(curl "http://localhost:8080/image/details/process.webp?src=$filename&resize=200")
+  mime_type=$(echo $details | jq '.content_type' | sed 's/"//g')
+
+  echo "Processed mime: $mime_type"
+
+  curl "http://localhost:8080/image/delete/$delete_token/$filename"
+done