Creating a mock API using Mulesoft RAML & testing it using Python

Hi Guys,

Today, I’ll be using a popular tool known as Mulesoft to generate a mock API & then we’ll be testing the same using python. Mulesoft is an excellent tool to rapidly develop API & also can integrate multiple cloud environments as an Integration platform. You can use their Anypoint platform to quickly design such APIs for your organization. You can find the details in the following link. However, considering the cost, many organization has to devise their own product or tool to do the same. That’s where developing a Python or Node.js or C# comes adequately considering the cloud platform.

Before we start, let us quickly know what Mock API is?

A mock API server imitates a real API server by providing realistic responses to requests. They can be on your local machine or the public Internet. Responses can be static or dynamic, and simulate the data the real API would return, matching the schema with data types, objects, and arrays.

And why do we need that?

A mock API server is useful during development and testing when live data is either unavailable or unreliable. While designing an API, you can use mock APIs to work concurrently on the front and back-end, as well as to gather feedback from developers. Our mock API sever guide for testing covers how you can use a mock API server so the absence of a real API doesn’t hold you back.

Often with internal projects, the API consumer (such as a front end developer through REST APIs) moves faster than the backend team building the API. This API mocking guide shows how a mock API server allows developers to consume a working API with the same interface as the eventual production API. As an added benefit, the backend team can discover where the mock API doesn’t meet the developer’s needs without spending developer time on features that may be removed or changed. This fast feedback loop can make engineering teams much more efficient.

If you need more information on this topic, you can refer to the following link.

Great! Since now we have a background of mock API – let’s explore how Mulesoft can help us here?

Mulesoft used the “RESTful API Modeling Language (RAML)” language. We’ll be using this language to develop our mock API. To know more about this, you can view the following link.

Under the developer section, you can find Tutorials as shown in the screenshot given below –

18. Type Of RAML

You can select any of the categories & learn basic scripting from it.

Now, let’s take a look at the process of creating a Mulesoft free account to test our theories.

Step 1:

Click the following link, and you will see the page as shown below –

0.1. Mulesoft Landing Page

Step 2:

Now, click the login shown in the RED square. You will see the following page –

0.2. Mulesoft Sign-Up Option

Step 3:

Please provide your credentials if you already have an account. Else, you have to click the “Sign-Up” & then you will need to provide the few details as shown below –

1. Mulesoft Registration

Step 4:

Once, you successfully create the account, you will see the following page –

2. Mulesoft Interface

So, now we are set. To design an API, you will need to click the design center as marked within the white square.

Once you click the “Start designing” button, this will land into the next screen.

21. Creating a Projects

As shown above, you need to click the “Create new” for fresh API design.

This will prompt you the next screen –

22. Creating a Projects - Continue

Now, you need to create the – “Create API specification” as marked in the RED square box. And, that will prompt you the following screen –

23. Creating a Projects - Continue

You have to provide a meaningful name of our API & you can choose either Text or Visual editor. For this task, we’ll be selecting the Text Editor. And we’ll select RAML 1.0 as our preferred language. Once, we provide all the relevant information, the “Create Specification” button marked in Green will be activated. And then you need to click it. It will lead you to the next screen –

24. CodeSpace

Since we’ll be preparing this for mock API, we need to activate that by clicking the toggle button marked in the GREEN square box on the top-right side. And, this will generate an automated baseUri script as shown below –

25. CodeSpace - Continue

Now, we’re ready to develop our RAML code for the mock API. Let’s look into the RAML code.

1. phonevalisd.raml (This is the mock API script, which will send the response of an API request by returning a mock JSON if successful conditions met.)

#%RAML 1.0
# Created By - Satyaki De
# Date: 01-Mar-2020
# Description: This is an Mock API

baseUri: https://anypoint.mulesoft.com/mocking/api/v1/links/09KK0pos-1080-4049-9e04-a093456a64a8/ # 
title: PhoneVSD
securitySchemes:
  basic :
    type: Basic Authentication
    displayName: Satyaki's Basic Authentication
    description: API Only works with the basic authentication
protocols:
  - HTTP
description: This is a REST API Json base service to verify any phone numbers.
documentation:
  - title: PHONE VERIFY API
    content: This is a Mock API, which will simulate the activity of a Phone Validation API.
types:
  apiresponse:
    properties:
      valid: boolean
      number: string
      local_format: string
      international_format: string
      country_prefix: string
      country_code: string
      country_name: string
      location: string
      carrier: string
      line_type: string

/validate:
  get:
    queryParameters:
      access_key: string
      number: string
      country_code: string
      format: string
    description: For Validating the phone
    displayName: Validate phone
    protocols:
      - HTTP
    responses:
      403:
        body:
          application/json:
            properties:
              message: string
            example:
              {
                message : "Resource does not exists!"
              }
      400:
        body:
          application/json:
            properties:
              message: string
            example:
              {
                message : "API Key is invalid!"
              }
      200:
        body:
          application/json:
            type: apiresponse
            example:
              {
                "valid":true,
                "number":"17579758240",
                "local_format":"7579758240",
                "international_format":"+17579758240",
                "country_prefix":"+1",
                "country_code":"US",
                "country_name":"United States of America",
                "location":"Nwptnwszn1",
                "carrier":"MetroPCS Communications Inc.",
                "line_type":"mobile"
              }

Let’s quickly explore the critical snippet from the above script.

baseUri: https://anypoint.mulesoft.com/mocking/api/v1/links/86a5097f-1080-4049-9e04-a429219a64a8/ #

The above line will be our main URL when we’re planning to invoke that from Python script.

securitySchemes:
    basic :
        type: Basic Authentication

In this script, we’re looking for primary level authentication. Apart from that, we have the options of using OAUTH & many other acceptable formats.

protocols:
- HTTP

In this case, we’re going to use – “HTTP” as our preferred communication protocol.

responses:
      403:
        body:
          application/json:
            properties:
              message: string
            example:
              {
                message : "Resource does not exists!"
              }
      400:
        body:
          application/json:
            properties:
              message: string
            example:
              {
                message : "API Key is invalid!"
              }
      200:
        body:
          application/json:
            type: apiresponse
            example:
              {
                "valid":true,
                "number":"17579758240",
                "local_format":"7579758240",
                "international_format":"+17579758240",
                "country_prefix":"+1",
                "country_code":"US",
                "country_name":"United States of America",
                "location":"Nwptnwszn1",
                "carrier":"MetroPCS Communications Inc.",
                "line_type":"mobile"
              }

We’ve created a provision for a few specific cases of response as part of our business logic & standards.

Once, we’re done with our coding, we need to focus on two places as shown in the below picture –

26. Validation - mock API - Mulesoft

The snippet marked in RED square box, identifying our mandatory input parameters shown in the code as well as the right-hand side of the walls.

To test this mock API locally, you can pass these key parameters as follows –

27. Validation - mock API - Mulesoft - Continue

Now, you have to click the Send button marked in a GREEN square box. This will send your query parameters & as per our API response, you can see the output just below the Send button as follows –

28. Validation - mock API - Mulesoft - Continue

Now, we’re good to publish this mock API in the Mulesoft Anywhere portal. This will help us to test it from an external application i.e., Python-based application for our case. So, click the “Publish” button highlighted with the Blue square box. That will prompt the following screen –

29. Published

Now, we’ll click the “Public to Exchange” button marked with the GREEN square box. This will prompt the next screen as shown below –

30. Published - Continue

Now, you need to fill up the relevant details & then click – “Publish to Exchange,” as shown above. And, that will lead to the following screen –

31. Published - Continue

And, after a few second you will see the next screen –

32. Published - Continue

Now, you can click “Done” to close this popup. And, to verify the status, you can check it by clicking the top-left side of the code-editor & then click “Design Center” as shown below –

33. Published - Final

So, we’re done with our Mulesoft mock API design & deployment. Let’s test it from our Python application. We’ll be only discussing the key snippets here.

2. clsConfig.py (This is the parameter file for our mock API script.)

##############################################
#### Written By: SATYAKI DE               ####
#### Written On: 04-Apr-2020              ####
####                                      ####
#### Objective: This script is a config   ####
#### file, contains all the keys for      ####
#### Mulesoft Mock API. Application will  ####
#### process these information & perform  ####
#### the call to our newly developed Mock ####
#### API in Mulesoft.                     ####
##############################################

import os
import platform as pl

class clsConfig(object):
    Curr_Path = os.path.dirname(os.path.realpath(__file__))

    os_det = pl.system()
    if os_det == "Windows":
        sep = '\\'
    else:
        sep = '/'

    config = {
        'APP_ID': 1,
        'URL': "https://anypoint.mulesoft.com/mocking/api/v1/links/a23e4e71-9c25-317b-834b-10b0debc3a30/validate",
        'CLIENT_SECRET': 'a12345670bacb1e3cec55e2f1234567d',
        'API_TYPE': "application/json",
        'CACHE': "no-cache",
        'CON': "keep-alive",
        'ARCH_DIR': Curr_Path + sep + 'arch' + sep,
        'PROFILE_PATH': Curr_Path + sep + 'profile' + sep,
        'LOG_PATH': Curr_Path + sep + 'log' + sep,
        'REPORT_PATH': Curr_Path + sep + 'report',
        'SRC_PATH': Curr_Path + sep + 'Src_File' + sep,
        'APP_DESC_1': 'Mule Mock API Calling!',
        'DEBUG_IND': 'N',
        'INIT_PATH': Curr_Path
    }

The key snippet from the above script is –

‘URL’: https://anypoint.mulesoft.com/mocking/api/v1/links/a23e4e71-9c25-317b-834b-10b0debc3a30/validate”,

This URL received from our RAML-editor generated by the Mulesoft API Designer studio.

3. clsMuleMockAPI.py (This is the main class to invoke our mock API script.)

##############################################
#### Written By: SATYAKI DE               ####
#### Written On: 30-Jul-2020              ####
#### Modified On 30-Jul-2020              ####
####                                      ####
#### Objective: Main class scripts to     ####
#### invoke mock API.                     ####
##############################################

import json
from clsConfig import clsConfig as cf
import requests
import logging

class clsMuleMockAPI:
    def __init__(self):
        self.url = cf.config['URL']
        self.muleapi_key = cf.config['CLIENT_SECRET']
        self.muleapi_cache = cf.config['CACHE']
        self.muleapi_con = cf.config['CON']
        self.type = cf.config['API_TYPE']

    def searchQry(self, phNumber, cntCode, fmt):
        try:
            url = self.url
            muleapi_key = self.muleapi_key
            muleapi_cache = self.muleapi_cache
            muleapi_con = self.muleapi_con
            type = self.type

            querystring = {"access_key": muleapi_key, "number": phNumber, "country_code": cntCode, "format": fmt}

            print('Input JSON: ', str(querystring))

            headers = {
                'content-type': type,
                'Cache-Control': muleapi_cache,
                'Connection': muleapi_con
            }

            response = requests.request("GET", url, headers=headers, params=querystring)

            ResJson = response.text

            jdata = json.dumps(ResJson)
            ResJson = json.loads(jdata)

            return ResJson

        except Exception as e:
            ResJson = ''
            x = str(e)
            print(x)

            logging.info(x)
            ResJson = {'errorDetails': x}

            return ResJson

And, the key snippet from the above code –

querystring = {"access_key": muleapi_key, "number": phNumber, "country_code": cntCode, "format": fmt}

In the above lines, we’re preparing the query string, which will be passed into the API call.

response = requests.request("GET", url, headers=headers, params=querystring)

Invoking our API using requests method in python.

4. callMuleMockAPI.py (This is the first calling script to invoke our mock API script through our developed class python script.)

##############################################
#### Written By: SATYAKI DE               ####
#### Written On: 30-Jul-2020              ####
#### Modified On 30-Jul-2020              ####
####                                      ####
#### Objective: Main calling scripts.     ####
##############################################

from clsConfig import clsConfig as cf
import clsL as cl
import logging
import datetime
import clsMuleMockAPI as cw
import pandas as p
import json

# Disbling Warning
def warn(*args, **kwargs):
    pass

import warnings
warnings.warn = warn

# Lookup functions from
# Azure cloud SQL DB

var = datetime.datetime.now().strftime("%Y-%m-%d_%H-%M-%S")

def main():
    try:
        # Declared Variable
        ret_1 = 0
        debug_ind = 'Y'
        res_2 = ''

        # Defining Generic Log File
        general_log_path = str(cf.config['LOG_PATH'])

        # Enabling Logging Info
        logging.basicConfig(filename=general_log_path + 'MockMuleAPI.log', level=logging.INFO)

        # Initiating Log Class
        l = cl.clsL()

        # Moving previous day log files to archive directory
        log_dir = cf.config['LOG_PATH']

        tmpR0 = "*" * 157

        logging.info(tmpR0)
        tmpR9 = 'Start Time: ' + str(var)
        logging.info(tmpR9)
        logging.info(tmpR0)

        print()

        print("Log Directory::", log_dir)
        tmpR1 = 'Log Directory::' + log_dir
        logging.info(tmpR1)

        print('Welcome to Mock Mulesoft API Calling Program: ')
        print('-' * 160)
        print('Please Press 1 for better formatted JSON: (Suitable for reading or debugging) ')
        print('Please Press 2 for unformated JSON: ')
        print()
        input_choice = int(input('Please provide your choice:'))
        print()

        # Create the instance of the Mock Mulesoft API Class
        x2 = cw.clsMuleMockAPI()

        # Let's pass this to our map section
        if input_choice == 1:
            fmt = "1"
            phNumber = str(input('Please provide the Phone Number (Without the country Code):'))
            cntCode  = str(input('Please provide the Country Code (Example: US):'))
            print()

            retJson = x2.searchQry(phNumber, cntCode, fmt )
        elif input_choice == 2:
            fmt = "0"
            phNumber = str(input('Please provide the Phone Number (Without the country Code):'))
            cntCode = str(input('Please provide the Country Code (Example: US):'))
            print()

            retJson = x2.searchQry(phNumber, cntCode, fmt)
        else:
            print('Invalid options!')
            retJson = {'errorDetails': 'Invalid Options!'}

        # Converting JSon to Pandas Dataframe for better readability
        # Capturing the JSON Payload
        res = json.loads(retJson)

        # Printing formatted JSON
        print()
        print('Output JSON::')
        print(json.dumps(res, indent=2))

        # Converting dictionary to Pandas Dataframe
        # df_ret = p.read_json(ret_2, orient='records')
        df_ret = p.io.json.json_normalize(res)
        df_ret.columns = df_ret.columns.map(lambda x: x.split(".")[-1])

        # Removing any duplicate columns
        df_ret = df_ret.loc[:, ~df_ret.columns.duplicated()]

        print()
        print()
        print("-" * 160)

        print('Publishing sample result: ')
        print(df_ret.head())

        # Logging Final Output
        l.logr('1.df_ret' + var + '.csv', debug_ind, df_ret, 'log')

        print("-" * 160)
        print()

        print('Finished Analysis points..')
        print("*" * 160)
        logging.info('Finished Analysis points..')
        logging.info(tmpR0)

        tmpR10 = 'End Time: ' + str(var)
        logging.info(tmpR10)
        logging.info(tmpR0)

    except ValueError as e:
        print(str(e))
        print("Invalid option!")
        logging.info("Invalid option!")

    except Exception as e:
        print("Top level Error: args:{0}, message{1}".format(e.args, e.message))

if __name__ == "__main__":
    main()

The above script is pretty straight forward. First, we’re instantiating our essential class by this line –

# Create the instance of the Mock Mulesoft API Class
x2 = cw.clsMuleMockAPI()

And, then based on the logical condition we’re invoking it as follows –

retJson = x2.searchQry(phNumber, cntCode, fmt )

Now, we would like to explore the directory structure both in MAC & Windows –

14. Dir

Topside represents the MAC O/S structure, whereas the bottom part represents the Windows directory structure.

Let’s run the python application to test it.

10. Program_Run

In this case, the bottom side represents the MAC run, whereas the top side represents Windows run status.

The sample CSV log should look something like this –

Windows:

15. Log Win CSV

MAC:

15. Log CSV MAC

So, we’ve done it.

I’ll be posting another new post in the coming days. Till then, Happy Avenging! 😀

Note: All the data posted here are representational data & available over the internet & for educational purpose only.

Predicting health issues for Senior Citizens based on “Realtime Weather Data” in Python

Hi Guys,

Today, I’ll be presenting a different kind of post here. I’ll be trying to predict health issues for senior citizens based on “realtime weather data” by blending open-source population data using some mock risk factor calculation. At the end of the post, I’ll be plotting these numbers into some graphs for better understanding.

Let’s drive!

For this first, we need realtime weather data. To do that, we need to subscribe to the data from OpenWeather API. For that, you have to register as a developer & you’ll receive a similar email from them once they have approved –

1. Subscription To Open Weather

So, from the above picture, you can see that, you’ll be provided one API key & also offered a couple of useful API documentation. I would recommend exploring all the links before you try to use it.

You can also view your API key once you logged into their console. You can also create multiple API keys & the screen should look something like this –

2. Viewing Keys For security reasons, I’ll be hiding my own keys & the same should be applicable for you as well.

I would say many of these free APIs might have some issues. So, I would recommend you to start testing the open API through postman before you jump into the Python development. Here is the glimpse of my test through the postman –

3. Testing API

Once, I can see that the API is returning the result. I can work on it.

Apart from that, one needs to understand that these API might have limited use & also you need to know the consequences in terms of price & tier in case if you exceeded the limit. Here is the detail for this API –

5. Package Details - API

For our demo, I’ll be using the Free tire only.

Let’s look into our other source data. We got the top 10 city population-wise over there internet. Also, we have collected sample Senior Citizen percentage against sex ratio across those cities. We have masked these values on top of that as this is just for education purposes.

1. CityDetails.csv

Here is the glimpse of this file –

4. Source File

So, this file only contains the total population across the top 10 cities in the USA.

2. SeniorCitizen.csv

6. SeniorCitizen Data

This file contains the Sex ratio of Senior citizens across those top 10 cities by population.

Again, we are not going to discuss any script, which we’ve already discussed here.

Hence, we’re skipping clsL.py here.

1. clsConfig.py (This script contains all the parameters of the server.)

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##############################################
#### Written By: SATYAKI DE               ####
#### Written On: 19-Jan-2019              ####
####                                      ####
#### Objective: This script is a config   ####
#### file, contains all the keys for      ####
#### azure cosmos db. Application will    ####
#### process these information & perform  ####
#### various CRUD operation on Cosmos DB. ####
##############################################

import os
import platform as pl

class clsConfig(object):
    Curr_Path = os.path.dirname(os.path.realpath(__file__))

    os_det = pl.system()
    if os_det == "Windows":
        sep = '\\'
    else:
        sep = '/'

    config = {
        'APP_ID': 1,
        'URL': "http://api.openweathermap.org/data/2.5/weather",
        'API_HOST': "api.openweathermap.org",
        'API_KEY': "XXXXXXXXXXXXXXXXXXXXXX",
        'API_TYPE': "application/json",
        'CACHE': "no-cache",
        'CON': "keep-alive",
        'ARCH_DIR': Curr_Path + sep + 'arch' + sep,
        'PROFILE_PATH': Curr_Path + sep + 'profile' + sep,
        'LOG_PATH': Curr_Path + sep + 'log' + sep,
        'REPORT_PATH': Curr_Path + sep + 'report',
        'SRC_PATH': Curr_Path + sep + 'Src_File' + sep,
        'APP_DESC_1': 'Open Weather Forecast',
        'DEBUG_IND': 'N',
        'INIT_PATH': Curr_Path,
        'SRC_FILE': Curr_Path + sep + 'Src_File' + sep + 'CityDetails.csv',
        'SRC_FILE_1': Curr_Path + sep + 'Src_File' + sep + 'SeniorCitizen.csv',
        'SRC_FILE_INIT': 'CityDetails.csv',
        'COL_LIST': ['base', 'all', 'cod', 'lat', 'lon', 'dt', 'feels_like', 'humidity', 'pressure', 'temp', 'temp_max', 'temp_min', 'name', 'country', 'sunrise', 'sunset', 'type', 'timezone', 'visibility', 'weather', 'deg', 'gust', 'speed'],
        'COL_LIST_1': ['base', 'all', 'cod', 'lat', 'lon', 'dt', 'feels_like', 'humidity', 'pressure', 'temp', 'temp_max', 'temp_min', 'CityName', 'country', 'sunrise', 'sunset', 'type', 'timezone', 'visibility', 'deg', 'gust', 'speed', 'WeatherMain', 'WeatherDescription'],
        'COL_LIST_2': ['CityName', 'Population', 'State']
    }

2. clsWeather.py (This script contains the main logic to extract the realtime data from our subscribed weather API.)

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##############################################
#### Written By: SATYAKI DE               ####
#### Written On: 19-Jan-2020              ####
#### Modified On 19-Jan-2020              ####
####                                      ####
#### Objective: Main scripts to invoke    ####
#### Indian Railway API.                  ####
##############################################

import requests
import logging
import json
from clsConfig import clsConfig as cf

class clsWeather:
    def __init__(self):
        self.url = cf.config['URL']
        self.openmapapi_host = cf.config['API_HOST']
        self.openmapapi_key = cf.config['API_KEY']
        self.openmapapi_cache = cf.config['CACHE']
        self.openmapapi_con = cf.config['CON']
        self.type = cf.config['API_TYPE']

    def searchQry(self, rawQry):
        try:
            url = self.url
            openmapapi_host = self.openmapapi_host
            openmapapi_key = self.openmapapi_key
            openmapapi_cache = self.openmapapi_cache
            openmapapi_con = self.openmapapi_con
            type = self.type

            querystring = {"appid": openmapapi_key, "q": rawQry}

            print('Input JSON: ', str(querystring))

            headers = {
                'host': openmapapi_host,
                'content-type': type,
                'Cache-Control': openmapapi_cache,
                'Connection': openmapapi_con
            }

            response = requests.request("GET", url, headers=headers, params=querystring)

            ResJson  = response.text

            jdata = json.dumps(ResJson)
            ResJson = json.loads(jdata)

            return ResJson

        except Exception as e:
            ResJson = ''
            x = str(e)
            print(x)

            logging.info(x)
            ResJson = {'errorDetails': x}

            return ResJson

The key lines from this script –

querystring = {"appid": openmapapi_key, "q": rawQry}

print('Input JSON: ', str(querystring))

headers = {
    'host': openmapapi_host,
    'content-type': type,
    'Cache-Control': openmapapi_cache,
    'Connection': openmapapi_con
}

response = requests.request("GET", url, headers=headers, params=querystring)

ResJson  = response.text

In the above snippet, our application first preparing the payload & the parameters received from our param script. And then invoke the GET method to extract the real-time data in the form of JSON & finally sending the JSON payload to the primary calling function.

3. clsMap.py (This script contains the main logic to prepare the MAP using seaborn package & try to plot our custom made risk factor by blending the realtime data with our statistical data received over the internet.)

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##############################################
#### Written By: SATYAKI DE               ####
#### Written On: 19-Jan-2020              ####
#### Modified On 19-Jan-2020              ####
####                                      ####
#### Objective: Main scripts to invoke    ####
#### plot into the Map.                   ####
##############################################

import seaborn as sns
import logging
from clsConfig import clsConfig as cf
import pandas as p
import clsL as cl

# This library requires later
# to print the chart
import matplotlib.pyplot as plt

class clsMap:
    def __init__(self):
        self.src_file =  cf.config['SRC_FILE_1']

    def calculateRisk(self, row):
        try:
            # Let's assume some logic
            # 1. By default, 30% of Senior Citizen
            # prone to health Issue for each City
            # 2. Male Senior Citizen is 19% more prone
            # to illness than female.
            # 3. If humidity more than 70% or less
            # than 40% are 22% main cause of illness
            # 4. If feels like more than 280 or
            # less than 260 degree are 17% more prone
            # to illness.
            # Finally, this will be calculated per 1K
            # people around 10 blocks

            str_sex = str(row['Sex'])

            int_humidity = int(row['humidity'])
            int_feelsLike = int(row['feels_like'])
            int_population = int(str(row['Population']).replace(',',''))
            float_srcitizen = float(row['SeniorCitizen'])

            confidance_score = 0.0

            SeniorCitizenPopulation = (int_population * float_srcitizen)

            if str_sex == 'Male':
                confidance_score = (SeniorCitizenPopulation * 0.30 * 0.19) + confidance_score
            else:
                confidance_score = (SeniorCitizenPopulation * 0.30 * 0.11) + confidance_score

            if ((int_humidity > 70) | (int_humidity < 40)):
                confidance_score = confidance_score + (int_population * 0.30 * float_srcitizen) * 0.22

            if ((int_feelsLike > 280) | (int_feelsLike < 260)):
                confidance_score = confidance_score + (int_population * 0.30 * float_srcitizen) * 0.17

            final_score = round(round(confidance_score, 2) / (1000 * 10), 2)

            return final_score

        except Exception as e:
            x = str(e)

            return x

    def setMap(self, dfInput):
        try:
            resVal = 0
            df = p.DataFrame()
            debug_ind = 'Y'
            src_file =  self.src_file

            # Initiating Log Class
            l = cl.clsL()

            df = dfInput

            # Creating a subset of desired columns
            dfMod = df[['CityName', 'temp', 'Population', 'humidity', 'feels_like']]

            l.logr('5.dfSuppliment.csv', debug_ind, dfMod, 'log')

            # Fetching Senior Citizen Data
            df = p.read_csv(src_file, index_col=False)

            # Merging two frames
            dfMerge = p.merge(df, dfMod, on=['CityName'])

            l.logr('6.dfMerge.csv', debug_ind, dfMerge, 'log')

            # Getting RiskFactor quotient from our custom made logic
            dfMerge['RiskFactor'] = dfMerge.apply(lambda row: self.calculateRisk(row), axis=1)

            l.logr('7.dfRiskFactor.csv', debug_ind, dfMerge, 'log')

            # Generating Map plotss
            # sns.lmplot(x='RiskFactor', y='SeniorCitizen', data=dfMerge, hue='Sex')
            # sns.lmplot(x='RiskFactor', y='SeniorCitizen', data=dfMerge, hue='Sex', markers=['o','v'], scatter_kws={'s':25})
            sns.lmplot(x='RiskFactor', y='SeniorCitizen', data=dfMerge, col='Sex')

            # This is required when you are running
            # through normal Python & not through
            # Jupyter Notebook
            plt.show()

            return resVal

        except Exception as e:
            x = str(e)
            print(x)

            logging.info(x)
            resVal = x

            return resVal

Key lines from the above codebase –

# Creating a subset of desired columns
dfMod = df[['CityName', 'temp', 'Population', 'humidity', 'feels_like']]

l.logr('5.dfSuppliment.csv', debug_ind, dfMod, 'log')

# Fetching Senior Citizen Data
df = p.read_csv(src_file, index_col=False)

# Merging two frames
dfMerge = p.merge(df, dfMod, on=['CityName'])

l.logr('6.dfMerge.csv', debug_ind, dfMerge, 'log')

# Getting RiskFactor quotient from our custom made logic
dfMerge['RiskFactor'] = dfMerge.apply(lambda row: self.calculateRisk(row), axis=1)

l.logr('7.dfRiskFactor.csv', debug_ind, dfMerge, 'log')

Combining our Senior Citizen data with already processed data coming from our primary calling script. Also, here the application is calculating our custom logic to find out the risk factor figures. If you want to go through that, I’ve provided the logic to derive it. However, this is just a demo to find out similar figures. You should not rely on the logic that I’ve used (It is kind of my observation of life till now. :D).

The below lines are only required when you are running seaborn, not via Jupyter notebook.

plt.show()

4. callOpenMapWeatherAPI.py (This is the first calling script. This script also calls the realtime API & then blend the first file with it & pass the only relevant columns of data to our Map script to produce the graph.)

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##############################################
#### Written By: SATYAKI DE               ####
#### Written On: 19-Jan-2020              ####
#### Modified On 19-Jan-2020              ####
####                                      ####
#### Objective: Main calling scripts.     ####
##############################################

from clsConfig import clsConfig as cf
import pandas as p
import clsL as cl
import logging
import datetime
import json
import clsWeather as ct
import re
import numpy as np
import clsMap as cm

# Disbling Warning
def warn(*args, **kwargs):
    pass

import warnings
warnings.warn = warn

# Lookup functions from
# Azure cloud SQL DB

var = datetime.datetime.now().strftime("%Y-%m-%d_%H-%M-%S")

def getMainWeather(row):
    try:
        # Using regular expression to fetch time part only

        lkp_Columns = str(row['weather'])
        jpayload = str(lkp_Columns).replace("'", '"')

        #jpayload = json.dumps(lkp_Columns)
        payload = json.loads(jpayload)

        df_lkp = p.io.json.json_normalize(payload)
        df_lkp.columns = df_lkp.columns.map(lambda x: x.split(".")[-1])

        str_main_weather = str(df_lkp.iloc[0]['main'])

        return str_main_weather

    except Exception as e:
        x = str(e)
        str_main_weather = x

        return str_main_weather

def getMainDescription(row):
    try:
        # Using regular expression to fetch time part only

        lkp_Columns = str(row['weather'])
        jpayload = str(lkp_Columns).replace("'", '"')

        #jpayload = json.dumps(lkp_Columns)
        payload = json.loads(jpayload)

        df_lkp = p.io.json.json_normalize(payload)
        df_lkp.columns = df_lkp.columns.map(lambda x: x.split(".")[-1])

        str_description = str(df_lkp.iloc[0]['description'])

        return str_description

    except Exception as e:
        x = str(e)
        str_description = x

        return str_description

def main():
    try:
        dfSrc = p.DataFrame()
        df_ret = p.DataFrame()
        ret_2 = ''
        debug_ind = 'Y'

        general_log_path = str(cf.config['LOG_PATH'])

        # Enabling Logging Info
        logging.basicConfig(filename=general_log_path + 'consolidatedIR.log', level=logging.INFO)

        # Initiating Log Class
        l = cl.clsL()

        # Moving previous day log files to archive directory
        arch_dir = cf.config['ARCH_DIR']
        log_dir = cf.config['LOG_PATH']
        col_list = cf.config['COL_LIST']
        col_list_1 = cf.config['COL_LIST_1']
        col_list_2 = cf.config['COL_LIST_2']

        tmpR0 = "*" * 157

        logging.info(tmpR0)
        tmpR9 = 'Start Time: ' + str(var)
        logging.info(tmpR9)
        logging.info(tmpR0)

        print("Archive Directory:: ", arch_dir)
        print("Log Directory::", log_dir)
        tmpR1 = 'Log Directory::' + log_dir
        logging.info(tmpR1)

        df2 = p.DataFrame()

        src_file =  cf.config['SRC_FILE']

        # Fetching data from source file
        df = p.read_csv(src_file, index_col=False)

        # Creating a list of City Name from the source file
        city_list = df['CityName'].tolist()

        # Declaring an empty dictionary
        merge_dict = {}
        merge_dict['city'] = df2

        start_pos = 1
        src_file_name = '1.' + cf.config['SRC_FILE_INIT']

        for i in city_list:
            x1 = ct.clsWeather()
            ret_2 = x1.searchQry(i)

            # Capturing the JSON Payload
            res = json.loads(ret_2)

            # Converting dictionary to Pandas Dataframe
            # df_ret = p.read_json(ret_2, orient='records')

            df_ret = p.io.json.json_normalize(res)
            df_ret.columns = df_ret.columns.map(lambda x: x.split(".")[-1])

            # Removing any duplicate columns
            df_ret = df_ret.loc[:, ~df_ret.columns.duplicated()]

            # l.logr(str(start_pos) + '.1.' + src_file_name, debug_ind, df_ret, 'log')
            start_pos = start_pos + 1

            # If all the conversion successful
            # you won't get any gust column
            # from OpenMap response. Hence, we
            # need to add dummy reason column
            # to maintain the consistent structures

            if 'gust' not in df_ret.columns:
                df_ret = df_ret.assign(gust=999999)[['gust'] + df_ret.columns.tolist()]

            # Resetting the column orders as per JSON
            column_order = col_list
            df_mod_ret = df_ret.reindex(column_order, axis=1)

            if start_pos == 1:
                merge_dict['city'] = df_mod_ret
            else:
                d_frames = [merge_dict['city'], df_mod_ret]
                merge_dict['city'] = p.concat(d_frames)

            start_pos += 1

        for k, v in merge_dict.items():
            l.logr(src_file_name, debug_ind, merge_dict[k], 'log')

        # Now opening the temporary file
        temp_log_file = log_dir + src_file_name

        dfNew = p.read_csv(temp_log_file, index_col=False)

        # Extracting Complex columns
        dfNew['WeatherMain'] = dfNew.apply(lambda row: getMainWeather(row), axis=1)
        dfNew['WeatherDescription'] = dfNew.apply(lambda row: getMainDescription(row), axis=1)

        l.logr('2.dfNew.csv', debug_ind, dfNew, 'log')

        # Removing unwanted columns & Renaming key columns
        dfNew.drop(['weather'], axis=1, inplace=True)
        dfNew.rename(columns={'name': 'CityName'}, inplace=True)

        l.logr('3.dfNewMod.csv', debug_ind, dfNew, 'log')

        # Now joining with the main csv
        # to get the complete picture
        dfMain = p.merge(df, dfNew, on=['CityName'])

        l.logr('4.dfMain.csv', debug_ind, dfMain, 'log')

        # Let's extract only relevant columns
        dfSuppliment = dfMain[['CityName', 'Population', 'State', 'country', 'feels_like', 'humidity', 'pressure', 'temp', 'temp_max', 'temp_min', 'visibility', 'deg', 'gust', 'speed', 'WeatherMain', 'WeatherDescription']]

        l.logr('5.dfSuppliment.csv', debug_ind, dfSuppliment, 'log')

        # Let's pass this to our map section
        x2 = cm.clsMap()
        ret_3 = x2.setMap(dfSuppliment)

        if ret_3 == 0:
            print('Successful Map Generated!')
        else:
            print('Please check the log for further issue!')

        print("-" * 60)
        print()

        print('Finding Story points..')
        print("*" * 157)
        logging.info('Finding Story points..')
        logging.info(tmpR0)


        tmpR10 = 'End Time: ' + str(var)
        logging.info(tmpR10)
        logging.info(tmpR0)

    except ValueError as e:
        print(str(e))
        print("No relevant data to proceed!")
        logging.info("No relevant data to proceed!")

    except Exception as e:
        print("Top level Error: args:{0}, message{1}".format(e.args, e.message))

if __name__ == "__main__":
    main()

Key snippet from the above script –

# Capturing the JSON Payload
res = json.loads(ret_2)

# Converting dictionary to Pandas Dataframe
df_ret = p.io.json.json_normalize(res)
df_ret.columns = df_ret.columns.map(lambda x: x.split(".")[-1])

Once the application received the JSON response from the realtime API, the application is converting it to pandas dataframe.

# Removing any duplicate columns
df_ret = df_ret.loc[:, ~df_ret.columns.duplicated()]

Since this is a complex JSON response. The application might encounter duplicate columns, which might cause a problem later. Hence, our app is removing all these duplicate columns as they are not required for our cases.

if 'gust' not in df_ret.columns:
    df_ret = df_ret.assign(gust=999999)[['gust'] + df_ret.columns.tolist()]

There is a possibility that the application might not receive all the desired attributes from the realtime API. Hence, the above lines will check & add a dummy column named gust for those records in case if they are not present in the JSON response.

if start_pos == 1:
    merge_dict['city'] = df_mod_ret
else:
    d_frames = [merge_dict['city'], df_mod_ret]
    merge_dict['city'] = p.concat(d_frames)

These few lines required as our API has a limitation of responding with only one city at a time. Hence, in this case, we’re retrieving one town at a time & finally merge them into a single dataframe before creating a temporary source file for the next step.

At this moment our data should look like this –

16. Intermediate_Data_1

Let’s check the weather column. We need to extract the main & description for our dashboard, which will be coming in the next installment.

# Extracting Complex columns
dfNew['WeatherMain'] = dfNew.apply(lambda row: getMainWeather(row), axis=1)
dfNew['WeatherDescription'] = dfNew.apply(lambda row: getMainDescription(row), axis=1)

Hence, we’ve used the following two functions to extract these values & the critical snippet from one of the service is as follows –

lkp_Columns = str(row['weather'])
jpayload = str(lkp_Columns).replace("'", '"')
payload = json.loads(jpayload)

df_lkp = p.io.json.json_normalize(payload)
df_lkp.columns = df_lkp.columns.map(lambda x: x.split(".")[-1])

str_main_weather = str(df_lkp.iloc[0]['main'])

The above lines extracting the weather column & replacing the single quotes with the double quotes before the application is trying to convert that to JSON. Once it converted to JSON, the json_normalize will easily serialize it & create individual columns out of it. Once you have them captured inside the pandas dataframe, you can extract the unique values & store them & return them to your primary calling function.

# Let's pass this to our map section
x2 = cm.clsMap()
ret_3 = x2.setMap(dfSuppliment)

if ret_3 == 0:
    print('Successful Map Generated!')
else:
    print('Please check the log for further issue!')

In the above lines, the application will invoke the Map class to calculate the remaining logic & then plotting the data into the seaborn graph.

Let’s just briefly see the central directory structure –

10. RunWindow

Here is the log directory –

11. Log Directory

And, finally, the source directory should look something like this –

12. SourceDir

Now, let’s runt the application –

Following lines are essential –

sns.lmplot(x='RiskFactor', y='SeniorCitizen', data=dfMerge, hue='Sex')

This will project the plot like this –

13. AdditionalOption

Or,

sns.lmplot(x='RiskFactor', y='SeniorCitizen', data=dfMerge, hue='Sex', markers=['o','v'], scatter_kws={'s':25})

This will lead to the following figures –

14. Adding Markers

As you can see, here, using the marker of (‘o’/’v’) leads to two different symbols for the different gender.

Or,

sns.lmplot(x='RiskFactor', y='SeniorCitizen', data=dfMerge, col='Sex')

This will lead to –

15. Separate By Sex

So, in this case, the application has created two completely different sets for Sex.

So, finally, we’ve done it. 😀

In the next post, I’ll be doing some more improvisation on top of these data sets. Till then – Happy Avenging! 🙂

Note: All the data posted here are representational data & available over the internet & for educational purpose only.

Converting text to voice in Python

Hi Guys!

Today, we’ll be discussing one new post of converting text into a voice using some third-party APIs. This is particularly very useful in many such cases, where you can use this method to get more realistic communication.

There are many such providers, where you can get an almost realistic voice for both males & females. However, most of them are subscription-based. So, you have to be very careful about your budget & how to proceed.

For testing purposes, I’ll be using voice.org to simulate this.

Let’s look out the architecture of this process –

FlowS

As you can see, the user-initiated the application & provide some input in the form of plain text. Once the data is given, the app will send it to the third-party API for the process. Now, the Third-party API will verify the authentication & then it will check all the associate parameters before it starting to generate the audio response. After that, it will send the payload & that will be received by the calling python application. Here, it will be decoded & create the audio file & finally, that will be played at the invoking computer.

This third-party API has lots of limitations. However, they are giving you the platform to test your concept.

As of now, they support the following languages – English, Chinese, Catalan, French, Finnish, Dutch, Danish, German, Italian, Japanese, Korean, Polish, Norwegian, Portuguese, Russian, Spanish & Sweedish.

In our case, we’ll be checking with English.

To work with this, you need to have the following modules installed in python –

  • playsound
  • requests
  • base64

Let’s see the directory structure –

1. Directory

Again, we are not going to discuss any script, which we’ve already discussed here.

Hence, we’re skipping clsL.py here.

1. clsConfig.py (This script contains all the parameters of the server.)

##############################################
#### Written By: SATYAKI DE               ####
#### Written On: 12-Oct-2019              ####
####                                      ####
#### Objective: This script is a config   ####
#### file, contains all the keys for      ####
#### azure cosmos db. Application will    ####
#### process these information & perform  ####
#### various CRUD operation on Cosmos DB. ####
##############################################

import os
import platform as pl

class clsConfig(object):
    Curr_Path = os.path.dirname(os.path.realpath(__file__))

    os_det = pl.system()
    if os_det == "Windows":
        sep = '\\'
    else:
        sep = '/'

    config = {
        'APP_ID': 1,
        'url': "https://voicerss-text-to-speech.p.rapidapi.com/",
        'host': "voicerss-text-to-speech.p.rapidapi.com",
        'api_key': "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        'targetFile': "Bot_decode.mp3",
        'pitch_speed': "-6",
        'bot_language': "en-us",
        'audio_type': "mp3",
        'audio_freq': "22khz_8bit_stereo",
        'query_string_api': "hhhhhhhhhhhhhhhhhhhhhhhhhhhh",
        'b64_encoding': True,
        'APP_DESC_1': 'Text to voice conversion.',
        'DEBUG_IND': 'N',
        'INIT_PATH': Curr_Path,
        'LOG_PATH': Curr_Path + sep + 'log' + sep
    }

For security reasons, sensitive information masked with the dummy value.

‘api_key’: “xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx”,

‘query_string_api’: “hhhhhhhhhhhhhhhhhhhhhhhhhhhh”,

This two information is private to each subscriber. Hence, I’ve removed them & updated with some dummy values.

You have to fill-up with your subscribed information.

2. clsText2Voice.py (This script will convert the text data into an audio file using a GET API request from the third-party API & then play that using the web media player.)

###############################################
#### Written By: SATYAKI DE                ####
#### Written On: 27-Oct-2019               ####
#### Modified On 27-Oct-2019               ####
####                                       ####
#### Objective: Main class converting      ####
#### text to voice using third-party API.  ####
###############################################

from playsound import playsound
import requests
import base64
from clsConfig import clsConfig as cf

class clsText2Voice:
    def __init__(self):
        self.url = cf.config['url']
        self.api_key = cf.config['api_key']
        self.targetFile = cf.config['targetFile']
        self.pitch_speed = cf.config['pitch_speed']
        self.bot_language = cf.config['bot_language']
        self.audio_type = cf.config['audio_type']
        self.audio_freq = cf.config['audio_freq']
        self.b64_encoding = cf.config['b64_encoding']
        self.query_string_api = cf.config['query_string_api']
        self.host = cf.config['host']

    def getAudio(self, srcString):
        try:
            url = self.url
            api_key = self.api_key
            tarFile = self.targetFile
            pitch_speed = self.pitch_speed
            bot_language = self.bot_language
            audio_type = self.audio_type
            audio_freq = self.audio_freq
            b64_encoding = self.b64_encoding
            query_string_api = self.query_string_api
            host = self.host

            querystring = {
                "r": pitch_speed,
                "c": audio_type,
                "f": audio_freq,
                "src": srcString,
                "hl": bot_language,
                "key": query_string_api,
                "b64": b64_encoding
            }

            headers = {
                'x-rapidapi-host': host,
                'x-rapidapi-key': api_key
            }

            response = requests.request("GET", url, headers=headers, params=querystring)

            # Converting to MP3
            targetFile = tarFile
            mp3File_64_decode = base64.decodebytes(bytes(response.text, encoding="utf-8"))
            mp3File_result = open(targetFile, 'wb')

            # create a writable mp3File and write the decoding result
            mp3File_result.write(mp3File_64_decode)
            mp3File_result.close()

            playsound(targetFile)

            return 0
        except Exception as e:
            x = str(e)
            print('Error: ', x)

            return 1

Few crucial lines from the above script –

querystring = {
    "r": pitch_speed,
    "c": audio_type,
    "f": audio_freq,
    "src": srcString,
    "hl": bot_language,
    "key": query_string_api,
    "b64": b64_encoding
}

You can configure the voice of the audio by adjusting all the configurations. And, the text content will receive at srcString. So, whatever user will be typing that will be directly captured here & form the JSON payload accordingly.

response = requests.request("GET", url, headers=headers, params=querystring)

In this case, you will be receiving the audio file in the form of a base64 text file. Hence, you need to convert them back to the sound file by these following lines –

# Converting to MP3
targetFile = tarFile
mp3File_64_decode = base64.decodebytes(bytes(response.text, encoding="utf-8"))
mp3File_result = open(targetFile, 'wb')

# create a writable mp3File and write the decoding result
mp3File_result.write(mp3File_64_decode)
mp3File_result.close()

As you can see that, we’ve extracted the response.text & then we’ve decoded that to byte object to form the mp3 sound file at the receiving end.

Once we have our mp3 file ready, the following line simply plays the audio record.

playsound(targetFile)

Thus you can hear the actual voice.

3. callText2Voice.py (This is the main script that will invoke the text to voice API & then playback the audio once it gets the response from the third-party API.)

###############################################
#### Written By: SATYAKI DE                ####
#### Written On: 27-Oct-2019               ####
#### Modified On 27-Oct-2019               ####
####                                       ####
#### Objective: Main class converting      ####
#### text to voice using third-party API.  ####
###############################################

from clsConfig import clsConfig as cf
import clsL as cl
import logging
import datetime
import clsText2Voice as ct

# Disbling Warning
def warn(*args, **kwargs):
    pass

import warnings
warnings.warn = warn

var = datetime.datetime.now().strftime("%Y-%m-%d_%H-%M-%S")

def main():
    try:
        ret_2 = ''
        debug_ind = 'Y'

        general_log_path = str(cf.config['LOG_PATH'])

        # Enabling Logging Info
        logging.basicConfig(filename=general_log_path + 'consolidatedTwitter.log', level=logging.INFO)

        # Initiating Log Class
        l = cl.clsL()

        # Moving previous day log files to archive directory
        log_dir = cf.config['LOG_PATH']

        tmpR0 = "*" * 157

        logging.info(tmpR0)
        tmpR9 = 'Start Time: ' + str(var)
        logging.info(tmpR9)
        logging.info(tmpR0)

        print("Log Directory::", log_dir)
        tmpR1 = 'Log Directory::' + log_dir
        logging.info(tmpR1)

        # Query using parameters
        rawQry = str(input('Enter your string:'))

        x1 = ct.clsText2Voice()
        ret_2 = x1.getAudio(rawQry)

        if ret_2 == 0:
            print("Successfully converted from text to voice!")
            logging.info("Successfully converted from text to voice!")
            print("*" * 157)
            logging.info(tmpR0)
        else:
            print("Successfuly converted!")
            logging.info("Successfuly converted!")
            print("*" * 157)
            logging.info(tmpR0)

        print("*" * 157)
        logging.info(tmpR0)

        tmpR10 = 'End Time: ' + str(var)
        logging.info(tmpR10)
        logging.info(tmpR0)

    except ValueError:
        print("No relevant data to proceed!")
        logging.info("No relevant data to proceed!")

    except Exception as e:
        print("Top level Error: args:{0}, message{1}".format(e.args, e.message))

if __name__ == "__main__":
    main()

Essential lines from the above script –

# Query using parameters
rawQry = str(input('Enter your string:'))

x1 = ct.clsText2Voice()
ret_2 = x1.getAudio(rawQry)

As you can see, here the user will be passing the text content, which will be given to our class & then it will project the audio sound of that text.

Let’s see how it runs –

Input Text: Welcome to Satyaki De’s blog. This site mainly deals with the Python, SQL from different DBs & many useful areas from the leading cloud providers.

And, here is the run command under Windows OS looks like –

2. Windows_Run

And, please find the sample voice that it generates –

So, We’ve done it! 😀

Let us know your comment on this.

So, we’ll come out with another exciting post in the coming days!

N.B.: This is demonstrated for RnD/study purposes. All the data posted here are representational data & available over the internet.