first attempt to refactor the test code into something more elegant

src/APIHandler.py

@@ -0,0 +1,31 @@
+import requests
+
+class APIHandler:
+    '''
+    Class to standardize the format of the headers of our http requests.
+    '''
+    # TO-DO: remove static url.
+    def __init__(self, apikey="", ELABFTW_API_URL="https://elabftw.fisica.unina.it/api/v2"):
+        '''Init method, apikey suggested but not required (empty by default).'''
+        self.auth = {"Authorization" : apikey}
+        self.content = {"Content-Type" : "application/json"}
+        self.dump = {**self.auth, **self.content}
+        self.elaburl = ELABFTW_API_URL
+    def get_entry_from_elabid(self, elabid, entryType="items"):
+        '''
+        Method which returns a resource's raw data (as dictionary) from its elabid and entry type.
+
+        Entry type can be either "experiments" or "items".
+        '''
+        # TO-DO: validation and error handling on entryType value.
+        header = self.dump
+        response = requests.get(
+            headers = header,
+            url = f"{self.elaburl}/{entryType}/{elabid}",
+            verify=True
+        )
+        if response.status_code // 100 in [2,3]:
+            entry_data = response.json()
+            return entry_data
+        else:
+            raise ConnectionError(f"HTTP request failed with status code: {response.status_code}.")