Function slack_verify::verify

pub fn verify(
    secret: &str,
    body: &str,
    timestamp: i64,
    expected_hex: &str
) -> Result<bool, FromHexError>

verify returns Result<bool, FromHexError>

FromHexError occurs when hex::decode(expected_hex) fails

Example

The following is from the official Slack documentation.

let secret = "8f742231b10e8888abcd99yyyzzz85a5";
let body = "token=xyzz0WbapA4vBCDEFasx0q6G&team_id=T1DC2JH3J&team_domain=testteamnow&channel_id=G8PSS9T3V&channel_name=foobar&user_id=U2CERLKJA&user_name=roadrunner&command=%2Fwebhook-collect&text=&response_url=https%3A%2F%2Fhooks.slack.com%2Fcommands%2FT1DC2JH3J%2F397700885554%2F96rGlfmibIGlgcZRskXaIFfN&trigger_id=398738663015.47445629121.803a0bc887a14d10d2c447fce8b6703c";
let timestamp = 1531420618;
// First "v=0" will be deleted
let expected = "v0=a2114d57b48eac39b9ad189dd8316235a7b4a8d21a10bd27519666489c69b503";
assert_eq!(verify(secret, body, timestamp, expected).unwrap(), true);