JavaScript JSON Decode
var jsonPerson = '{"first_name":"billy", "age":23}';
var personObject = JSON.parse(jsonPerson); //parse json string into JS object
Grepper
var jsonPerson = '{"first_name":"billy", "age":23}';
var personObject = JSON.parse(jsonPerson); //parse json string into JS objectimport jwt_decode from "jwt-decode";
var token = "eyJ0eXAiO...";
var decoded = jwt_decode(token);
console.log(decoded);
/* prints: * { foo: "bar", * exp: 1393286893, * iat: 1393268893 } */import jwt_decode from "jwt-decode"; var token = "eyJ0eXAiO.../// jwt token";var decoded = jwt_decode(token); console.log(decoded); /* prints: * { foo: "bar", * exp: 1393286893, * iat: 1393268893 } */ // decode header by passing in options (useful for when you need `kid` to verify a JWT):var decodedHeader = jwt_decode(token, { header: true });console.log(decodedHeader); /* prints: * { typ: "JWT", * alg: "HS256" } */let b64DecodeUnicode = str =>
decodeURIComponent(
Array.prototype.map.call(atob(str), c =>
'%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2)
).join(''))
let parseJwt = token =>
JSON.parse(
b64DecodeUnicode(
token.split('.')[1].replace('-', '+').replace('_', '/')
)
)jwt.decode( token, SECRET_KEY, algorithm='HS256' )import { JwtHelperService } from "@auth0/angular-jwt";
constructor(private jwtHelper: JwtHelperService) {}
// DDECODIFICA TOKEN
CheckUser(): void {
this.role = this.GetUserRole();
this.username = this.GetUsername();
const token = this.tokenGetter();
if (token && this.jwtHelper.isTokenExpired(token)) {
alert("Sessione scaduta!");
this.router.navigate(["login"]);
return;
}
if (token && !this.jwtHelper.isTokenExpired(token)) {
this.isLogged = true;
if (this.role === "User") {
this.adminMode = false;
} else {
this.adminMode = true;
}
}
console.log("logged?: " + this.isLogged);
console.log("role: " + this.role);
console.log("username: " + this.username);
console.log("adminMode?: " + this.adminMode);
}
tokenGetter() {
return localStorage.getItem("token");
}
GetUserRole() {
const token = this.tokenGetter();
if (!token) {
return;
}
let tokenData = this.jwtHelper.decodeToken(token);
let role =
tokenData[
"http://schemas.microsoft.com/ws/2008/06/identity/claims/role"
];
return role;
}
GetUsername() {
const token = this.tokenGetter();
if (!token) {
return;
}
let tokenData = this.jwtHelper.decodeToken(token);
let username =
tokenData[
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name"
];
return username;
}