diff --git a/src/main/clj/org/domaindrivenarchitecture/activity_pub_poc/core.clj b/src/main/clj/org/domaindrivenarchitecture/activity_pub_poc/core.clj
index cb4bf74..01a4b23 100644
--- a/src/main/clj/org/domaindrivenarchitecture/activity_pub_poc/core.clj
+++ b/src/main/clj/org/domaindrivenarchitecture/activity_pub_poc/core.clj
@@ -4,11 +4,13 @@
             [quoll.raphael.core :refer [parse]]
             [org.domaindrivenarchitecture.activity-pub-poc.common :as cm]            
             [clojure.spec.alpha :as s]
+            [orchestra.core :refer [defn-spec]]
             [clojure.inspector :as ins]
             [hato.client :as hato]
             [clojure.string :as st]
             [clojure.walk :as walk]
-            [clojure.string :as str]))
+            [clojure.string :as str]
+            [lambdaisland.uri :as uri]))
 
 (def team-url "https://social.meissa-gmbh.de/users/team")
 (def like-url "https://www.w3.org/ns/activitystreams#Like")
@@ -26,17 +28,71 @@
 (defn type-string? [input]
   (re-matches #"[A-Z]" (str (first input))))
 
+(defn uri-string? [input]
+  (re-matches #"https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,4}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)" input))
+
 (defn uri-vector? [input]
   (and (every? #(uri? %) input)
        (vector? input)))
 
+(def context "@context")
+(def type-string "type")
+(def id-uri "id")
+(def to-uri "to")
+(def actor "actor")
+(def object "object")
+
 ; Specs for a like
-(s/def ::context uri?)
-(s/def ::type type-string?)
-(s/def ::id uri?)
-(s/def ::to uri-vector?)
-(s/def ::actor uri?)
-(s/def ::object uri?)
+(s/def context uri-string?)
+(s/def type-string type-string?)
+(s/def id-uri uri-string?)
+(s/def to-uri uri-vector?)
+(s/def actor uri-string?)
+(s/def object uri-string?)
+(s/def ::to uri-string?)
+(s/def ::target string?)
+(s/def ::from uri-string?)
+
+(def like? (s/keys :req-un [context
+                            type-string
+                            id-uri
+                            to-uri
+                            actor
+                            object]))
+
+(def like-data? (s/keys :req-un [::to ::target ::from]))
+
+(def activity-streams-context "https://www.w3.org/ns/activitystreams")
+
+(def like-data 
+  {:to "https://chatty.bla/ben/"
+   :target "posts/234s23-2g34234-2hhj536"
+   :from "https://social.bla/alyssa/"})
+
+(defn generate-id-from-object [from]
+  (str from "out" "/" "sdfsd44243g324g3455"))
+
+(defn-spec generate-like-map like?
+  [input-map like-data?] 
+  (assoc {}
+         "@context" activity-streams-context
+         "type" "Like"
+         "id" (generate-id-from-object (:from input-map))
+         "to" (:to input-map)
+         "actor" (:from input-map)
+         "object" (:target input-map)))
+
+
+
+
+
+
+
+
+
+
+
+
 
 ; ToDo
 ; Prädikat das langString parsen/validieren kann, evtl auch für xsd:string