implement mongodb post and getall todo: get single

iotclient/iot_client.py

@@ -38,6 +38,34 @@ def send_image(identifier, image_path, metadata_payload):
     return True
 
 
+def get_image(identifier):
+    print("Getting image with identifier "+identifier)
+
+    baseurl = "http://127.0.0.1:8000"
+    get_url = "/image/get?id="+identifier
+
+    try:
+        response = requests.get(baseurl + get_url)
+        print_response(response)
+    except os.error:
+        print("Error sending request")
+    return True
+
+
+
+def get_all():
+    print("Getting all images")
+
+    baseurl = "http://127.0.0.1:8000"
+    get_url = "/image/get"
+
+    try:
+        response = requests.get(baseurl + get_url)
+        print_response(response)
+    except os.error:
+        print("Error sending request")
+    return True
+
 metadata = None
 index = 0
 metadata_folder = "." + os.path.sep
@@ -85,6 +113,8 @@ 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("fetch - gets the next image from database if exists")
+        print("fetchall - get all images")
         print("rapid <#amount> - next <amound> images in line are sent to backend in 2 second intervals")
         print("skip [<#amount>] - skips the next <amount> number of images in line or 1 if no <amount> is given")
         print("set <#index> - sets image on given <index> as next in line")
@@ -157,6 +187,29 @@ while (command.lower() not in ["exit", "quit", "end"]):
         send_image(filename[:-4], image_folder + os.path.sep + filename, meta_payload)
         index = index + 1
 
+    if command.lower() == "fetch":
+        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']
+        get_image(filename[:-4])
+        index = index + 1
+
+
+    if command.lower() == "fetchall":
+        if metadata is None:
+            print("No metadata loaded")
+            continue
+        if image_folder is None:
+            print("No image folder selected")
+            continue
+        get_all()
+        index = index + 1
+
     if command.lower() == "rapid":
         if metadata is None:
             print("No metadata loaded")

middleware/app_be/models.py

@@ -1,3 +1,5 @@
 from django.db import models
 
+
 # Create your models here.
+

middleware/app_be/settings.py

@@ -11,12 +11,10 @@ import os
 # set the websocket routing module location here
 ASGI_APPLICATION = 'app_be.routing.application'
 
-
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))
 
-
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/2.0/howto/deployment/checklist/
 
@@ -37,7 +35,7 @@ INSTALLED_APPS = [
     'django.contrib.messages',
     'django.contrib.staticfiles',
     'channels',
-    'rest_framework'
+    'rest_framework',
 ]
 
 MIDDLEWARE = [
@@ -49,6 +47,7 @@ MIDDLEWARE = [
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+
 ]
 
 """
@@ -67,7 +66,6 @@ REST_FRAMEWORK = {
     )
 }
 
-
 # configuration of jason web token authentication
 JWT_AUTH = {
     'JWT_VERIFY': True,
@@ -117,15 +115,16 @@ TEMPLATES = [
 
 WSGI_APPLICATION = 'app_be.wsgi.application'
 
-
 # Database
 # https://docs.djangoproject.com/en/2.0/ref/settings/#databases
 
 DATABASES = {
+
     'default': {
         'ENGINE': 'django.db.backends.sqlite3',
         'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
     }
+
 }
 
 AUTH_PASSWORD_VALIDATORS = [
@@ -219,4 +218,4 @@ LOGGING = {
 # increase the maximum upload size of files
 DATA_UPLOAD_MAX_MEMORY_SIZE = 104857600
 
-DROPBOX_OAUTH2_ACCESS_TOKEN = 'SDt1aqMQg7EAAAAAAAAAARV4CNnOSTjYLc05W2YAxIArG93DnaK9Si9VbwE-aBbQ'
+DROPBOX_OAUTH2_ACCESS_TOKEN = 'SDt1aqMQg7EAAAAAAAAAARV4CNnOSTjYLc05W2YAxIArG93DnaK9Si9VbwE-aBbQ'

middleware/app_be/urls.py

@@ -24,7 +24,7 @@ urlpatterns = [
     path('admin/', admin.site.urls),
     url(r'^test/', TestApiClass.test_api),
     url(r'^image/get$', ImageEndpoint.image_api_get_all),
-    url(r'^image/get/(?P<id>[0-9]+)$', ImageEndpoint.image_api_get_single),
+    url(r'^image/get(?P<id>[-|a-zA-Z0-9]+)$', ImageEndpoint.image_api_get_single),
     url(r'^image/post$', ImageEndpoint.image_api_post)
 ]
 

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)
+        dbx.files_upload(decoded_image, '/Apps/AIC Federated Storage Infrastructure/' + filename)
-        return JsonResponse({'Result': 'success2', 'received file': filename, 'metadata': metadata}, safe=False)
+        return JsonResponse({'Result': 'success2', 'received file': filename},
+                            safe=False)  # 'metadata': metadata response beinhaltet ObjectId welche nicht serializable is?

middleware/setup.py

@@ -18,7 +18,8 @@ setup(
         'channels_redis==3.2.0',
         'whitenoise==5.2.0',
         'Pillow==8.0.1',
-        'dropbox==10.10.0'
+        'dropbox==10.10.0',
+        'pymongo=3.11.1',
     ],
     license='BSD License',  # example license
     description='DESCRIPTION'