Added filter for interpolation data

dataacquisition/api.py

-import json
-
 import psycopg2
 from flask import Flask, jsonify, request
 from psycopg2 import sql
@@ -35,6 +33,10 @@ def index():
 
         columns = sql.SQL(years_clean)
 
+    # Filter for getting only real measurent data without any interpolated points
+    if 'no-interpol' in request.args:
+        wheres = wheres + (sql.SQL("AND file IS NOT NULL "))
+
     # Filter for specific coordinates
     if 'lat' in request.args or 'lng' in request.args:
         lat = request.args['lat']