Question / no question lambda function and the endpoint

backend/scripts/nlp/lambda_function.py

@@ -0,0 +1,58 @@
+""" This is a copy of the Lambda function that was uploaded to AWS, it is not intended to run locally
+and it will not work without modification"""
+
+import json
+import nltk
+import requests
+nltk.data.path.append("/tmp")
+
+nltk.download('punkt', download_dir="/tmp")
+
+
+
+
+
+def lambda_handler(event, context):
+    answer = {}
+    invalidReq = False
+    try:
+        sentence = event["sentence"]
+    except:
+        answer = {
+            "error": "not a valid input"
+        }
+        invalidReq = True
+    if not invalidReq:
+
+        tokens = nltk.word_tokenize(sentence.lower())
+        tokenlist = ''
+        firstword = tokens[0]
+
+        isQuestion = False
+
+
+
+        for s in tokens:
+            tokenlist += s
+
+
+
+        if '?' in tokenlist:
+            isQuestion = True
+
+        wh_question = ['what', 'when', 'where', 'who',
+                        'whom', 'which', 'whose', 'why', 'how']
+        yN_question = ["am", "is", "are", "do", "does", "did", "have", "has", "was", "were", "can", "cannot", "could",
+                        "couldn't", "dare", "may", "might", "must", "need", "ought", "shall", "should", "shouldn't", "will", "would"]
+
+        if firstword in wh_question or firstword in yN_question:
+            isQuestion = True
+
+        answer = False
+        if (isQuestion):
+            answer = True
+
+
+    return {
+        'answer': answer
+    }