add structlog to dspace refactor

Pipfile

@@ -11,6 +11,10 @@ requests-mock = "*"
 requests = "*"
 structlog = "*"
 attr = "*"
+click = "*"
 
 [requires]
 python_version = "3.7"
+
+[scripts]
+dsaps = "python -c \"from dsaps.cli import main; main()\""

dsaps/cli.py

@@ -1,9 +1,14 @@
+import datetime
+import logging
 import time
 
 import click
+import structlog
 
 from dsaps import models
 
+logger = structlog.get_logger()
+
 
 @click.group()
 @click.option('--url', envvar='DSPACE_URL')
@@ -15,7 +20,22 @@
 @click.pass_context
 def main(ctx, url, email, password):
     ctx.obj = {}
-    print('Application start')
+    dt = datetime.datetime.utcnow().isoformat(timespec='seconds')
+    log_suffix = f'{dt}.log'
+    structlog.configure(processors=[
+                        structlog.stdlib.filter_by_level,
+                        structlog.stdlib.add_log_level,
+                        structlog.stdlib.PositionalArgumentsFormatter(),
+                        structlog.processors.TimeStamper(fmt="iso"),
+                        structlog.processors.JSONRenderer()
+                        ],
+                        context_class=dict,
+                        logger_factory=structlog.stdlib.LoggerFactory())
+    logging.basicConfig(format="%(message)s",
+                        handlers=[logging.FileHandler(f'logs/log-{log_suffix}',
+                                  'w')],
+                        level=logging.INFO)
+    logger.info('Application start')
     client = models.Client(url, email, password)
     start_time = time.time()
     ctx.obj['client'] = client
@@ -38,7 +58,7 @@ def search(ctx, field, string, search_type):
     client = ctx.obj['client']
     start_time = ctx.obj['start_time']
     item_links = client.filtered_item_search(field, string, search_type)
-    print(item_links)
+    logger.info(item_links)
     models.elapsed_time(start_time, 'Elapsed time')
 
 

dsaps/models.py

@@ -5,15 +5,18 @@
 import time
 
 import attr
+import structlog
 
 op = operator.attrgetter('name')
 Field = partial(attr.ib, default=None)
 
+logger = structlog.get_logger()
+
 
 class Client:
     def __init__(self, url, email, password):
         self.url = url
-        print('Initializing client')
+        logger.info('Initializing client')
         data = {'email': email, 'password': password}
         header = {'content-type': 'application/json', 'accept':
                   'application/json'}
@@ -25,7 +28,7 @@ def __init__(self, url, email, password):
         self.user_full_name = status['fullname']
         self.cookies = cookies
         self.header = header
-        print(f'Authenticated to {self.url} as 'f'{self.user_full_name}')
+        logger.info(f'Authenticated to {self.url} as 'f'{self.user_full_name}')
 
     def get_record(self, uuid, rec_type):
         """Retrieve an individual record of a particular type."""
@@ -39,7 +42,7 @@ def get_record(self, uuid, rec_type):
         elif rec_type == 'collections':
             rec_obj = self._pop_inst(Collection, record)
         else:
-            print('Invalid record type.')
+            logger.info('Invalid record type.')
             exit()
         return rec_obj
 
@@ -52,7 +55,7 @@ def filtered_item_search(self, key, string, query_type,
             endpoint = f'{self.url}/rest/filtered-items?query_field[]='
             endpoint += f'{key}&query_op[]={query_type}&query_val[]={string}'
             endpoint += f'{selected_collections}&limit=200&offset={offset}'
-            print(endpoint)
+            logger.info(endpoint)
             response = requests.get(endpoint, headers=self.header,
                                     cookies=self.cookies).json()
             items = response['items']
@@ -117,4 +120,4 @@ class MetadataEntry(BaseRecord):
 def elapsed_time(start_time, label):
     """Calculate elapsed time."""
     td = datetime.timedelta(seconds=time.time() - start_time)
-    print(f'{label} : {td}')
+    logger.info(f'{label} : {td}')