Persisting cookies in memory only between curl requests; see https://www.how-hard-can-it.be/curl-cookie-memory-only-not-disk/ for details

curl-memory-only-cookie.sh

#!/bin/bash

# Create a session and store the cookie in a temporary variable
cookie=$(curl -c - \
              -d username="not-a-real-username" \
              -d password="not-a-real-password" \
              -H "Origin: localhost" \
              "https://www.how-hard-can-it.be/ghost/api/v2/admin/session/")

# Use the session cookie to query all Ghost blog posts
echo "${cookie}" | curl -b - \
                        -H "Content-Type: application/json" \
                        -H "Origin: localhost" \
                        "https://www.how-hard-can-it.be/ghost/api/v2/admin/posts/"