Stored JWT payload key in String.payloadKey static property

Sources/JWTAuthenticatable/BasicJWTAuthenticatable.swift

@@ -5,6 +5,12 @@ import Fluent
 import Crypto
 import Vapor
 
+extension String {
+
+    /// The key for the JWT payload when it is stored in a Vapor `Request` object.
+    public static let payloadKey: String = "skelpo-payload"
+}
+
 /// Used to decode a request body in
 /// `BasicJWTAuthenticatable.authBody(from:)`.
 ///
@@ -95,7 +101,7 @@ extension BasicJWTAuthenticatable {
             // Store the model and payload in the request
             // using the request's `privateContainer`.
             try request.authenticate(model)
-            try request.set("skelpo-payload", to: payload)
+            try request.set(.payloadKey, to: payload)
 
             return model
         })
@@ -123,7 +129,7 @@ extension BasicJWTAuthenticatable {
 
                 // Store the payload and the model in the request
                 // for later access.
-                try request.set("skelpo-payload", to: authenticated.0)
+                try request.set(.payloadKey, to: authenticated.0)
                 try request.authenticate(authenticated.1)
 
                 return authenticated.1

Sources/JWTMiddleware/JWTVerificationMiddleware.swift

@@ -33,7 +33,7 @@ public final class JWTStorageMiddleware<Payload: JWTPayload>: Middleware {
 
         // Verify to token and store the payload in the request's private container.
         let payload = try JWT<Payload>(from: data, verifiedUsing: jwt.signer).payload
-        try request.set("skelpo-payload", to: payload)
+        try request.set(.payloadKey, to: payload)
 
         // Fire the next responder in the chain.
         return try next.respond(to: request)

Sources/JWTMiddleware/Request+JWT.swift

@@ -27,7 +27,7 @@ extension Request {
     ///   request storage. This is because this method should _only_ be called
     ///   if a JWT compatible model has been authenticated through a `JWTMiddleware`.
     public func payload<Payload: Decodable>(as payloadType: Payload.Type = Payload.self)throws -> Payload {
-        guard let payload = try self.get("skelpo-payload", as: Payload .self) else {
+        guard let payload = try self.get(.payloadKey, as: Payload .self) else {
             throw Abort(.internalServerError, reason: "No JWTMiddleware has been registered for the current route.")
         }
         return payload
@@ -46,7 +46,7 @@ extension Request {
     ///   or some other error from encoding and decoding the payload.
     public func payloadData<Payload, Object>(storedAs stored: Payload.Type, convertedTo objectType: Object.Type = Object.self)throws -> Object
         where Payload: Encodable, Object: Decodable {
-            guard let payload = try self.get("skelpo-payload", as: Payload.self) else {
+            guard let payload = try self.get(.payloadKey, as: Payload.self) else {
                 throw Abort(.internalServerError, reason: "No JWTMiddleware has been registered for the current route.")
             }