eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJuYW1lIjoiTXJCdWciLCJleHAiOjE1MTI5NTkzMDMuMCwianRpIjoibHVvemhpcGVuZyJ9.9iwGMHmS0mophyFgliLK15hs_eE770IchaZ-bWcX5c0

{
"alg": "HS256",
"typ": "JWT"
}

eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9

{
 "name": "MrBug",
 "exp": 1512959303,
 "jti": "luozhipeng"
}

eyJuYW1lIjoiTXJCdWciLCJleHAiOjE1MTI5NTkzMDMuMCwianRpIjoibHVvemhpcGVuZyJ9

<span style="color: #008000">//</span><span style="color: #008000"> javascript</span>
<span style="color: #0000ff">var</span> encodedString = base64UrlEncode(header) + '.' +<span style="color: #000000"> base64UrlEncode(payload);
 
</span><span style="color: #0000ff">var</span> signature = HMACSHA256(encodedString, 'secret'); <span style="color: #008000">//</span><span style="color: #008000"> 9iwGMHmS0mophyFgliLK15hs_eE770IchaZ-bWcX5c0</span>

eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJuYW1lIjoiTXJCdWciLCJleHAiOjE1MTI5NTkzMDMuMCwianRpIjoibHVvemhpcGVuZyJ9.9iwGMHmS0mophyFgliLK15hs_eE770IchaZ-bWcX5c0

fetch('api/user/1', {
 headers: {
 'Authorization': 'Bearer ' + token
 }
})

Install-Package JWT -Version 3.0.0

IDateTimeProvider provider = new UtcDateTimeProvider();
var now = provider.GetNow();
var unixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc); // or use JwtValidator.UnixEpoch
var secondsSinceEpoch = Math.Round((now - unixEpoch).TotalSeconds);
var payload = new Dictionary<string, object>
{
    { "name", "MrBug" },        
    {"exp",secondsSinceEpoch+100 },
    {"jti","luozhipeng" }
};
Console.WriteLine(secondsSinceEpoch);
IJwtAlgorithm algorithm = new HMACSHA256Algorithm();
IJsonSerializer serializer = new JsonNetSerializer();
IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder();
IJwtEncoder encoder = new JwtEncoder(algorithm, serializer, urlEncoder);
var token = encoder.Encode(payload, secret);
Console.WriteLine(token);

try
{
  IJsonSerializer serializer = new JsonNetSerializer();
  IDateTimeProvider provider = new UtcDateTimeProvider();
  IJwtValidator validator = new JwtValidator(serializer, provider);
  IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder();
  IJwtDecoder decoder = new JwtDecoder(serializer, validator, urlEncoder);
  var json = decoder.Decode(token, secret, verify: true);//token为之前生成的字符串
  Console.WriteLine(json);
}
catch (TokenExpiredException)
{
  Console.WriteLine("Token has expired");
}
catch (SignatureVerificationException)
{
  Console.WriteLine("Token has invalid signature");
}

public class CustomJsonSerializer : IJsonSerializer
{
  public string Serialize(object obj)
  {
    // Implement using favorite JSON Serializer
  }
  public T Deserialize<T>(string json)
  {
    // Implement using favorite JSON Serializer
  }
}

IJwtAlgorithm algorithm = new HMACSHA256Algorithm();
IJsonSerializer serializer = new CustomJsonSerializer();
IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder();
IJwtEncoder encoder = new JwtEncoder(algorithm, serializer, urlEncoder);

JsonSerializer customJsonSerializer = new JsonSerializer
{
  // All json keys start with lowercase characters instead of the exact casing of the model/property. e.g. fullName
  ContractResolver = new CamelCasePropertyNamesContractResolver(), 
  
  // Nice and easy to read, but you can also do Formatting.None to reduce the payload size (by hardly anything...)
  Formatting = Formatting.Indented,
  
  // The best date/time format/standard.
  DateFormatHandling = DateFormatHandling.IsoDateFormat,
  
  // Don't add key/values when the value is null.
  NullValueHandling = NullValueHandling.Ignore,
  
  // Use the enum string-value, not the implicit int value, e.g. "oolor" : "red"
  Converters.Add(new StringEnumConverter())
};
IJsonSerializer serializer = new JsonNetSerializer(customJsonSerializer);