updates

python/introduction/part-5.database.redis/customers.json

@@ -0,0 +1,37 @@
+{
+  "a": {
+    "customerID": "a",
+    "firstName": "James",
+    "lastName": "Baker"
+  },
+  "b": {
+    "customerID": "b",
+    "firstName": "Jonathan",
+    "lastName": "D"
+  },
+  "c": {
+    "customerID": "c",
+    "firstName": "Aleem",
+    "lastName": "Janmohamed"
+  },
+  "d": {
+    "customerID": "d",
+    "firstName": "Ivo",
+    "lastName": "Galic"
+  },
+  "e": {
+    "customerID": "e",
+    "firstName": "Joel",
+    "lastName": "Griffiths"
+  },
+  "f": {
+    "customerID": "f",
+    "firstName": "Michael",
+    "lastName": "Spinks"
+  },
+  "g": {
+    "customerID": "g",
+    "firstName": "Victor",
+    "lastName": "Savkov"
+  }
+}

python/introduction/part-5.database.redis/requirements.txt

@@ -1,2 +1,2 @@
 Flask == 2.0.2
-Redis == 3.5.3
+redis == 3.5.3

python/introduction/part-5.database.redis/src/app.py

@@ -1,25 +1,18 @@
 import os.path
 import csv
-import os
 import json
 import time
 from flask import Flask
 from flask import request
-import redis
+import os
 from redis.sentinel import Sentinel
 
+dataPath = "./customers.json"
+
 redis_sentinels = os.environ.get('REDIS_SENTINELS')
 redis_master_name = os.environ.get('REDIS_MASTER_NAME')
 redis_password = os.environ.get('REDIS_PASSWORD')
 
-class Customer:
-  def __init__(self, c="",f="",l=""):
-    self.customerID = c
-    self.firstName  = f
-    self.lastName   = l
-  def fullName(self):
-    return self.firstName + " " + self.lastName
-
 def redis_command(command, *args):
   max_retries = 3
   count = 0
@@ -34,13 +27,20 @@ def redis_command(command, *args):
       print('Retrying in {} seconds'.format(backoffSeconds))
       time.sleep(backoffSeconds)
 
+class Customer:
+  def __init__(self, c="",f="",l=""):
+    self.customerID = c
+    self.firstName  = f
+    self.lastName   = l
+  def fullName(self):
+    return self.firstName + " " + self.lastName
+
 def getCustomers():
   customers = {}
   customerIDs = redis_command(redis_master.scan_iter, "*")
   for customerID in customerIDs:
     customer = getCustomer(customerID)
     customers[customer["customerID"]] = customer
-  
   return customers
 
 def getCustomer(customerID):
@@ -53,7 +53,7 @@ def getCustomer(customerID):
     return json.loads(c)
 
 def updateCustomer(customer):
-  redis_command(redis_master.set, customer.customerID, json.dumps(customer.__dict__))
+  redis_command(redis_master.set,customer.customerID, json.dumps(customer.__dict__) )
 
 def updateCustomers(customers):
   for customer in customers:
@@ -69,6 +69,7 @@ for s in redis_sentinels.split(","):
 redis_sentinel = Sentinel(sentinels, socket_timeout=5)
 redis_master = redis_sentinel.master_for(redis_master_name,password = redis_password, socket_timeout=5)
 
+
 @app.route("/", methods=['GET'])
 def get_customers():
     customers = getCustomers()
@@ -97,3 +98,4 @@ def add_customer():
   customer = Customer( jsonData["customerID"], jsonData["firstName"], jsonData["lastName"])
   updateCustomer(customer)
   return "success", 200
+