Start some FastAPI examples

Author: ccozad

web/fastapi/hello_world/README.md

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+# Dependencies
+
+You will need all of the following dependencies to run this example:
+
+ - Python virtual environment
+
+## Python Virtual Environment
+
+ - Move to the fast-api folder
+   - `cd <web/fastapi/hello_world>`
+ - Create a virtual environment
+   - On Mac: `python3 -m venv .venv`
+   - On Windows: `python -m venv .venv`
+ - Activate the virtual environment
+   - On Mac: `source .venv/bin/activate`
+   - On Windows: `.venv\Scripts\activate`
+ - Install dependencies
+   - On Mac: `pip3 install -r requirements.txt`
+   - On Windows: `pip install -r requirements.txt`
+ - Call a specific script
+   - On Mac: `python3 <script_name>.py`
+   - On Windows: `python <script_name>.py`
+ - Deactivate virtual environment
+   - `deactivate`
+
+# Run the code
+ Mac ` ./.venv/bin/fastapi dev main.py`

web/fastapi/hello_world/main.py

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+from fastapi import FastAPI
+
+app = FastAPI()
+
+
+@app.get("/")
+async def root():
+    return {"message": "Hello World"}

web/fastapi/hello_world/requirements.txt

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+fastapi[standard]