```shell npm install fu-apikey ```
npm install fu-apikeyshell
npm install fu-apikey
`
$3
`javascript
const apikey = require("fu-apikey");
apikey.setSalt("Your salt")
apikey.encode({url: "/pathname", method: "GET", params: {a: 1, b: 2}});
apikey.encode({url: "/pathname", method: "POST", data: {a: 1, b: 2}});
``