Eli, a young traveler, stood before the heavy oak doors of the . He had a simple task: he wanted to leave a letter for a friend. He walked up to the reception desk, where a clerk sat behind a glass partition.
"The library is right here," the clerk droned, pointing to the shelves of books behind him. "You’ve got the right place. But this is an . It is a read-only establishment. You can GET a book, you can HEAD a title, but you cannot POST a letter here. We simply don't allow that method of interaction." "But I have to leave this letter!" Eli insisted. 405 Not Allowed
In the bustling city of Silicon Circuit, every citizen is a and every building is a Server . Eli, a young traveler, stood before the heavy
"I don't understand," Eli said. "Is the library closed? Is the address wrong?" "The library is right here," the clerk droned,
The clerk pointed to a small plaque on the wall—the . It listed the only "verbs" the building accepted: GET, HEAD, OPTIONS .