implement mongodb post and getall todo: get single

middleware/app_be/views/mongo_db.py

@@ -0,0 +1,19 @@
+import pymongo
+
+class MongoManager:
+    __instance = None
+
+    @staticmethod
+    def getInstance():
+        if MongoManager.__instance == None:
+            MongoManager()
+        return MongoManager.__instance
+
+    def __init__(self):
+        if MongoManager.__instance != None:
+            raise Exception("This class is a singleton!")
+        else:
+            MongoManager.__instance = pymongo.MongoClient('127.0.0.1', 27017)
+            db = MongoManager.__instance.AIC
+            coll = db.metadata
+            coll.create_index("filename",unique=True)

middleware/app_be/views/rest_api.py

@@ -2,6 +2,9 @@ import logging
 import json
 import base64
 import dropbox
+import pymongo
+
+from app_be.views.mongo_db import MongoManager
 
 from django.http import JsonResponse
 from django.http import HttpRequest
@@ -25,12 +28,43 @@ class ImageEndpoint:
     @api_view(['GET'])
     def image_api_get_all(request):
         logger.debug('Image GET all call: {}'.format(request))
+
+        instance = MongoManager.getInstance()
+
+        db = instance.AIC
+        col = db.metadata
+
+        print("hier")
+
+
+        try:
+            for resp in col.find():
+                print(resp)
+
+        except:
+            print("Could not find Metadata")
+
         return JsonResponse({'Result': 'success1'}, safe=False)
 
+
     @staticmethod
     @api_view(['GET'])
     def image_api_get_single(request, id):
         logger.debug('Image GET single call: {}'.format(request))
+
+        print("im single")
+
+        instance = MongoManager.getInstance()
+
+        db = instance.AIC
+        col = db.metadata
+
+        try:
+            resp = col.find({"filename": id+".jpg"})
+            print(resp[0]);
+        except:
+            print("Could not find Metadata")
+
         return JsonResponse({'Result': 'success1', 'id': id}, safe=False)
 
     @staticmethod
@@ -39,9 +73,22 @@ class ImageEndpoint:
         logger.debug('Image POST call: {}'.format(request))
         payload = json.loads(request.body.decode('utf-8'))
         b64encoded_image = payload['image_data']
-        filename = payload['filename']
+        filename = payload['id']
         metadata = payload['metadata']
+
+        instance = MongoManager.getInstance()
+
+        db = instance.AIC
+        col = db.metadata
+
+
+        try:
+            resp = col.insert_one(metadata)
+        except:
+            print("Could not insert Metadata")
+
         decoded_image = base64.b64decode(b64encoded_image)
         dbx = dropbox.Dropbox(settings.DROPBOX_OAUTH2_ACCESS_TOKEN)
-        dbx.files_upload(decoded_image,'/Apps/AIC Federated Storage Infrastructure/' + filename)
-        return JsonResponse({'Result': 'success2', 'received file': filename, 'metadata': metadata}, safe=False)
+        dbx.files_upload(decoded_image, '/Apps/AIC Federated Storage Infrastructure/' + filename)
+        return JsonResponse({'Result': 'success2', 'received file': filename},
+                            safe=False)  # 'metadata': metadata response beinhaltet ObjectId welche nicht serializable is?