Update utils.py

utils.py

@@ -37,4 +37,39 @@ def local_css(css_path):
 
 
 def remote_css(css_url):
-    st.markdown(f'<link href="{css_url}" rel="stylesheet">', unsafe_allow_html=True)
+    st.markdown(f'<link href="{css_url}" rel="stylesheet">', unsafe_allow_html=True)
+    
+"""Basic utilities module"""
+import requests
+import csv
+import re
+
+
+def request_ct(url):
+    """Performs a get request that provides a (somewhat) useful error message."""
+    try:
+        response = requests.get(url)
+    except ImportError:
+        raise ImportError(
+            "Couldn't retrieve the data, check your search expression or try again later."
+        )
+    else:
+        return response
+
+
+def json_handler(url):
+    """Returns request in JSON (dict) format"""
+    return request_ct(url).json()
+
+
+def csv_handler(url):
+    """Returns request in CSV (list of records) format"""
+
+    response = request_ct(url)
+    decoded_content = response.content.decode("utf-8")
+
+    split_by_blank = re.split(r"\n\s*\n", decoded_content)  # Extracts header info
+    cr = csv.reader(split_by_blank[1].splitlines(), delimiter=",")
+    records = list(cr)
+
+    return records