Useful debugging snippets

```bash
# Make a POST request with post parameter
# -i for showing headers
# -d for passing post parameters
curl -i -d "site_key=almost_random" -X POST http://localhost:3001/api/visits

# Save a cookie in a file
curl -c visits_cookie.txt -d "site_key=almost_random" -X POST http://localhost:3001/api/visits

# Make a POST request with cookie
# -b for passing the cookie
curl -b visits_cookie.txt -d "site_key=almost_random" -X POST http://localhost:3001/api/visits

# Check a redis key from command line
redis-cli get visit_session:2d2066db-78f3-43f4-b38c-47ce258751bc

# Deletes redis key
redis-cli get visit_session:2d2066db-78f3-43f4-b38c-47ce258751bc
```