Make cli to read stdin

Author: code-yeongyu

ygka/cli/retrieve_stdin.py

@@ -0,0 +1,7 @@
+import sys
+
+_stdin = None if sys.stdin.isatty() else sys.stdin.read()
+
+
+def retrieve_stdin():
+    return _stdin

ygka/cli/ygka.py

@@ -1,8 +1,10 @@
 from rich import print as pprint
 
 from .cli_app import cli_app
+from .retrieve_stdin import retrieve_stdin
 
 
 @cli_app.command()
-def ygka_command():
-    pprint('[bold]Hello World![/bold]')
+def ygka_command(query: str):
+    stdin = retrieve_stdin()
+    pprint({'stdin': stdin, 'query': query})