1direction: down
2
3start: Start {
4  shape: oval
5}
6
7input: User Input
8validate: Validate Input
9valid: Valid? {
10  shape: diamond
11}
12process: Process Request
13error: Show Error
14result: Return Result
15end: End {
16  shape: oval
17}
18
19start -> input
20input -> validate
21validate -> valid
22valid -> process: yes
23valid -> error: no
24process -> result
25error -> input
26result -> end