add sentry logging and error checking

findthatpostcode/__init__.py

@@ -2,8 +2,10 @@
 import os
 import re
 
+import sentry_sdk
 from flask import Flask, make_response, render_template, request
 from flask_cors import CORS
+from sentry_sdk.integrations.flask import FlaskIntegration
 from ua_parser import user_agent_parser
 
 from findthatpostcode import blueprints, commands, db
@@ -20,6 +22,17 @@ def get_es_url(default):
 
 
 def create_app(test_config=None):
+    if os.environ.get("SENTRY_DSN"):
+        sentry_sdk.init(
+            dsn=os.environ.get("SENTRY_DSN"),
+            integrations=[FlaskIntegration()],
+            environment=(
+                "development" if os.environ.get("FLASK_DEBUG") else "production"
+            ),
+            traces_sample_rate=0.005,
+            profiles_sample_rate=0.005,
+        )
+
     # create and configure the app
     app = Flask(__name__, instance_relative_config=True)
     app.config.from_mapping(

requirements.in

@@ -15,4 +15,5 @@ requests-mock
 blinker
 sqlite-utils
 ua-parser
-boto3
+boto3
+sentry-sdk[flask]

requirements.txt

@@ -9,7 +9,9 @@ attrs==22.1.0
 black==22.10.0
     # via -r requirements.in
 blinker==1.5
-    # via -r requirements.in
+    # via
+    #   -r requirements.in
+    #   sentry-sdk
 boto3==1.26.61
     # via -r requirements.in
 botocore==1.29.61
@@ -20,6 +22,7 @@ certifi==2022.12.7
     # via
     #   elasticsearch
     #   requests
+    #   sentry-sdk
 chardet==4.0.0
     # via requests
 click==8.0.1
@@ -30,6 +33,10 @@ click==8.0.1
     #   sqlite-utils
 click-default-group-wheel==1.2.2
     # via sqlite-utils
+colorama==0.4.6
+    # via
+    #   click
+    #   pytest
 dictlib==1.1.5
     # via -r requirements.in
 elasticmock==1.8.1
@@ -38,16 +45,21 @@ elasticsearch==7.8.1
     # via
     #   -r requirements.in
     #   elasticmock
+exceptiongroup==1.1.3
+    # via pytest
 flask==2.2.2
     # via
     #   -r requirements.in
     #   flask-cors
+    #   sentry-sdk
 flask-cors==3.0.10
     # via -r requirements.in
 gunicorn==20.1.0
     # via -r requirements.in
 idna==2.10
     # via requests
+importlib-metadata==6.8.0
+    # via flask
 iniconfig==1.1.1
     # via pytest
 isort==5.10.1
@@ -65,6 +77,7 @@ jmespath==1.0.1
 markupsafe==2.1.1
     # via
     #   jinja2
+    #   sentry-sdk
     #   werkzeug
 mypy-extensions==0.4.3
     # via black
@@ -98,6 +111,8 @@ requests-mock==1.10.0
     # via -r requirements.in
 s3transfer==0.6.0
     # via boto3
+sentry-sdk[flask]==1.30.0
+    # via -r requirements.in
 six==1.16.0
     # via
     #   flask-cors
@@ -110,19 +125,28 @@ sqlite-utils==3.30
     # via -r requirements.in
 tabulate==0.9.0
     # via sqlite-utils
+tomli==2.0.1
+    # via
+    #   black
+    #   pytest
 tqdm==4.61.1
     # via -r requirements.in
+typing-extensions==4.7.1
+    # via black
 ua-parser==0.16.1
     # via -r requirements.in
 url-normalize==1.4.3
     # via requests-cache
-urllib3==1.26.5
+urllib3==1.26.16
     # via
     #   botocore
     #   elasticsearch
     #   requests
+    #   sentry-sdk
 werkzeug==2.2.2
     # via flask
+zipp==3.16.2
+    # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
 # setuptools