fix: formatting typo, some mypy errors (#18)

app.py

@@ -1,8 +1,8 @@
 import os
 import logging
 import sys
-from prometheus_client import generate_latest, CollectorRegistry
-from flask import Flask, Response
+from prometheus_client import generate_latest
+from flask import Flask, Response, cli
 
 import config_loader
 import metrics
@@ -16,7 +16,6 @@
 
 # Disable Flask's default logging
 logging.getLogger("werkzeug").disabled = True
-cli = sys.modules['flask.cli']
 cli.show_server_banner = lambda *x: None
 
 app = Flask(__name__)
@@ -30,7 +29,7 @@ def root():
 
 
 @app.route('/metrics')
-def metrics():
+def metrics_endpoint():
     try:
         nm.collect_metrics(rpc, addresses_to_monitor, diamond_address)
         gm.collect_metrics(graph_node, providers_to_monitor)
@@ -50,7 +49,7 @@ def metrics():
 
         rpc_url = config.rpc_url
         graph_node_url = config.graph_node_url
-        port = int(os.getenv("PORT", config.port))
+        port = int(os.getenv("PORT", str(config.port)))
 
         addresses_to_monitor = config.addresses
         providers_to_monitor = config.providers

config_loader.py

@@ -1,6 +1,6 @@
 import yaml
 from pydantic import BaseModel, ValidationError, constr, conlist, condecimal
-from typing import List, Optional
+from typing import Optional
 import pathlib
 import logging
 
@@ -16,7 +16,7 @@ class AddressEntry(BaseModel):
 class TransactionConfig(BaseModel):
     enabled: bool
     private_key_path: Optional[str] = None
-    interval: Optional[str] = "60s"
+    interval: str = "60s"
 
 
 class ConfigSchema(BaseModel):

network_metrics.py

@@ -110,8 +110,7 @@ def collect_balances(rpc: Web3, addresses_to_monitor: list[AddressEntry]):
 
         FLUENCE_BALANCE.labels(
             address=address, name=name).set(balance_eth)
-        logger.debug(f"Address {address} ({name}) balance is: {
-                     balance_eth} FLT")
+        logger.debug(f"Address {address} ({name}) balance is: {balance_eth} FLT")
         FLUENCE_BALANCE_MINIMUM.labels(
             address=address, name=name).set(minimum_balance)
 
@@ -129,8 +128,7 @@ def collect_reward_balance(rpc: Web3, diamond_address: str):
     reward_balance = diamond.functions.getRewardBalance().call()
     reward_balance_eth = rpc.from_wei(reward_balance, 'ether')
     REWARD_BALANCE_FLT.set(reward_balance_eth)
-    logger.debug(f"Diamond {diamond_address} reward balance is {
-                 reward_balance_eth} FLT")
+    logger.debug(f"Diamond {diamond_address} reward balance is {reward_balance_eth} FLT")
 
 
 def collect_metrics(