Added update (pre minio delete)

iotclient/iot_client.py

@@ -42,6 +42,35 @@ def send_image(identifier, image_path, metadata_payload):
     return True
 
 
+def update_image(identifier, image_path, metadata_payload):
+    print("Updating image with identifier " + identifier)
+    if not os.path.isfile(image_path):
+        print("No image found at path " + image_path)
+        return False
+    file_encoded_b64 = None
+    with open(image_path, "rb") as file_to_send:
+        file_encoded_b64 = base64.b64encode(file_to_send.read())
+
+    if file_encoded_b64 is None:
+        print("Error reading file")
+        return False
+
+    file_payload = file_encoded_b64.decode('utf-8')
+    baseurl = "http://127.0.0.1:8000"
+    post_url = "/image/update/" + identifier
+    body = {
+        'id': identifier,
+        'metadata': metadata_payload,
+        'image_data': file_payload
+    }
+    try:
+        response = requests.put(baseurl + post_url, json=body)
+        print_response(response)
+    except os.error:
+        print("Error sending request")
+    return True
+
+
 def get_image(identifier):
     print("Getting image with identifier " + identifier)
 
@@ -190,6 +219,7 @@ while (command.lower() not in ["exit", "quit", "end"]):
         print("imagefolder <path> - selected new image folder")
         print("show - opens image next in line in default os program")
         print("trigger - next image in line is sent to backend")
+        print("update - next image in line is updated in backend")
         print("fetch - gets the next image from database if exists")
         print("fetchall - get all images")
         print("delete - delets the next image from db if exists")
@@ -272,6 +302,19 @@ while (command.lower() not in ["exit", "quit", "end"]):
         index = index + 1
         print_cursor()
 
+    if command.lower() == "update":
+        if metadata is None:
+            print("No metadata loaded")
+            continue
+        if image_folder is None:
+            print("No image folder selected")
+            continue
+        meta_payload = metadata[index]
+        filename = meta_payload['filename']
+        update_image(filename[:-4], image_folder + os.path.sep + filename, meta_payload)
+        index = index + 1
+        print_cursor()
+
     if command.lower() == "fetch":
         if metadata is None:
             print("No metadata loaded")