# CIEF Extract Load

### Built With

* [Python 3.9.12](https://www.python.org/downloads/)
* [mysql-connector-python 8.0.30](https://pypi.org/project/mysql-connector-python/)
* [google-cloud-storage 2.5.0](https://pypi.org/project/google-cloud-storage/)

## ✨ Code-base structure

### How To Run CMD:
```
###### pip3 install -r requirements.txt
###### Create "EXCHANGE_CONFIG.json" & "EXCHANGE_EXTRACT_SQL.json" in the config file and input the config value
###### python3 main.py
```

### Some VM Tips
```
###### Host: data-managmenet project
###### Image: Debian 11
###### Region: US
###### Directory: /home/cief_data/business_intelligence/data-management
###### Crontab config: crontab -e
###### Crontab log: grep CRON /var/log/syslog
###### Python log: grep 'mycmd' /var/log/syslog
###### Remove file cmd: rm -rf 
```

###### Example:- EXCHANGE_CONFIG.json
```
{
    "host"      :   "127.0.0.1",
    "user"      :   "admin",
    "password"  :   "admin",
    "database"  :   "classicmodels"
}
```
###### Example:- EXCHANGE_EXTRACT_SQL.json
```
{
    "customers"    :   "SELECT *, now() AS '_source_loaded_at' FROM customers;",
    "employees"    :   "SELECT *, now() AS '_source_loaded_at' FROM employees;",
    "offices"      :   "SELECT *, now() AS '_source_loaded_at' FROM offices;"
}
```
### Project Tree

```
data-management
│
├─ .gitignore                                               # Ignore the file to push into gitlab
│
├─ config                                                   # Folder store all the config file to use in the code
│  ├─ CLOUD-STORAGE-ADMIN-CREDENTIAL.json                   # Get from GCP Service Account cloud-storage-admin-service-account
│  ├─ EXCHANGE_CONFIG.json                                  # Manually config the MySQL ID, Password, etc... 
│  └─ EXCHANGE_EXTRACT_SQL.json                             # SQL use in MYSQL to extract the data we need to save in temp's csv
│
├─ exchange                                                 # Exchange web application
│  ├─ extract                                               # All extract needed code is in here
│  │  ├─ exchange_extract_function.py                       # Exchange extract code function to import in run_extract_load.py
│  │  └─ exchange_temp_extract_csv                          # Temp folder to store all the csv extract from MYSQL (Auto Create)   
│  │     └─ .gitkeep                                        # Keep empty folder
│  │
│  └─ load                                                  # All load needed code is in here
│     └─ exchange_load_function.py                          # Exchange load code function to import in run_extract_load.py
│
├─ general_function.py                                      # All customize general code function to import in run_extract_load.py
├─ README.md                                                # Project guide
├─ requirements.txt                                         # Install needed library
└─ main.py                                                  # Main code to run the extract load process

```

### Manage By
##### Name:- Francis Yam Zheng Lim 
##### Contact:- 0129747749
##### Email:- yamzhenglim0427@gmail.com