How to load data from Alpha Vantage to MySQL Destination

Begin by signing up for a free account on the Alpha Vantage website. After registration, you will receive an API key via email, which you will use to authenticate your requests to Alpha Vantage's API.

Install Python on your local machine if you haven't already. You'll also need to install the `requests` library, which will help you make HTTP requests to the Alpha Vantage API. You can install it using pip:
```bash
pip install requests
```

Use the `requests` library in a Python script to fetch the desired data from Alpha Vantage. Below is a sample code snippet to get stock data:
```python
import requests

API_KEY = 'your_alpha_vantage_api_key'
SYMBOL = 'AAPL'
URL = f'https://www.alphavantage.co/query?function=TIME_SERIES_DAILY&symbol={SYMBOL}&apikey={API_KEY}'

response = requests.get(URL)
data = response.json()
```

Once you've fetched the JSON data, parse it to extract the specific data points you need. For instance, you might want to extract the daily time series data:
```python
time_series = data.get('Time Series (Daily)', {})
prepared_data = [
(date, values['1. open'], values['2. high'], values['3. low'], values['4. close'], values['5. volume'])
for date, values in time_series.items()
]
```

Ensure that you have a MySQL server running and create a database and table to store the data. Here’s an example SQL command to create a table:
```sql
CREATE DATABASE stock_data;
USE stock_data;
CREATE TABLE daily_prices (
date DATE PRIMARY KEY,
open FLOAT,
high FLOAT,
low FLOAT,
close FLOAT,
volume BIGINT
);
```

Use Python’s `mysql-connector-python` library to connect to your MySQL database. Install the library using pip:
```bash
pip install mysql-connector-python
```
Then, establish a connection in your Python script:
```python
import mysql.connector

conn = mysql.connector.connect(
host='your_mysql_host',
user='your_username',
password='your_password',
database='stock_data'
)
cursor = conn.cursor()
```

Iterate over your prepared data and insert it into the MySQL table using SQL INSERT statements:
```python
insert_query = """
INSERT INTO daily_prices (date, open, high, low, close, volume)
VALUES (%s, %s, %s, %s, %s, %s)
ON DUPLICATE KEY UPDATE
open=VALUES(open), high=VALUES(high), low=VALUES(low), close=VALUES(close), volume=VALUES(volume);
"""

cursor.executemany(insert_query, prepared_data)
conn.commit()
cursor.close()
conn.close()
```

By following these steps, you can effectively move data from Alpha Vantage to a MySQL database without relying on third-party connectors or integrations.