Implement logging strategy (#444)

* Logging strategy and convert all prints() to logging invocations

trustgraph-base/trustgraph/api/api.py

@@ -49,9 +49,6 @@ class Api:
 
         url = f"{self.url}{path}"
 
-#        print("uri:", url)
-#        print(json.dumps(request, indent=4))
-
         # Invoke the API, input is passed as JSON
         resp = requests.post(url, json=request, timeout=self.timeout)
 
@@ -59,8 +56,6 @@ class Api:
         if resp.status_code != 200:
             raise ProtocolException(f"Status code {resp.status_code}")
 
-#        print(resp.text)
-
         try:
             # Parse the response as JSON
             object = resp.json()

trustgraph-base/trustgraph/api/config.py

@@ -1,7 +1,11 @@
 
+import logging
+
 from . exceptions import *
 from . types import ConfigValue
 
+logger = logging.getLogger(__name__)
+
 class Config:
 
     def __init__(self, api):
@@ -33,7 +37,7 @@ class Config:
                 for v in object["values"]
             ]
         except Exception as e:
-            print(e)
+            logger.error("Failed to parse config get response", exc_info=True)
             raise ProtocolException("Response not formatted correctly")
 
     def put(self, values):

trustgraph-base/trustgraph/api/library.py

@@ -2,11 +2,14 @@
 import datetime
 import time
 import base64
+import logging
 
 from . types import DocumentMetadata, ProcessingMetadata, Triple
 from .. knowledge import hash, Uri, Literal
 from . exceptions import *
 
+logger = logging.getLogger(__name__)
+
 def to_value(x):
     if x["e"]: return Uri(x["v"])
     return Literal(x["v"])
@@ -112,7 +115,7 @@ class Library:
                 for v in object["document-metadatas"]
             ]
         except Exception as e:
-            print(e)
+            logger.error("Failed to parse document list response", exc_info=True)
             raise ProtocolException(f"Response not formatted correctly")
 
     def get_document(self, user, id):
@@ -145,7 +148,7 @@ class Library:
                 tags = doc["tags"]
             )
         except Exception as e:
-            print(e)
+            logger.error("Failed to parse document response", exc_info=True)
             raise ProtocolException(f"Response not formatted correctly")
 
     def update_document(self, user, id, metadata):
@@ -192,7 +195,7 @@ class Library:
                 tags = doc["tags"]
             )
         except Exception as e:
-            print(e)
+            logger.error("Failed to parse document update response", exc_info=True)
             raise ProtocolException(f"Response not formatted correctly")
 
     def remove_document(self, user, id):
@@ -266,6 +269,6 @@ class Library:
                 for v in object["processing-metadatas"]
             ]
         except Exception as e:
-            print(e)
+            logger.error("Failed to parse processing list response", exc_info=True)
             raise ProtocolException(f"Response not formatted correctly")