diff --git a/backend/package.json b/backend/package.json
index 83417635d..ec3d78ce3 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -52,6 +52,7 @@
     "express": "~4.16.4",
     "faker": "~4.1.0",
     "graphql": "~14.2.0",
+    "graphql-constraint-directive": "^1.3.0",
     "graphql-custom-directives": "~0.2.14",
     "graphql-iso-date": "~3.6.1",
     "graphql-middleware": "~3.0.2",
diff --git a/backend/src/resolvers/user_management.js b/backend/src/resolvers/user_management.js
index fc8ca36b3..14327ca36 100644
--- a/backend/src/resolvers/user_management.js
+++ b/backend/src/resolvers/user_management.js
@@ -119,7 +119,7 @@ export default {
       const [currentUser] = result.records.map(record => {
         return record.get('user')
       })
-      console.log(currentUser)
+
       return currentUser.socialMedia
     }
   }
diff --git a/backend/src/schema.graphql b/backend/src/schema.graphql
index e4530c435..c9a3d919d 100644
--- a/backend/src/schema.graphql
+++ b/backend/src/schema.graphql
@@ -26,7 +26,7 @@ type Mutation {
   disable(id: ID!): ID
   enable(id: ID!): ID
   reward(fromBadgeId: ID!, toUserId: ID!): ID
-  addSocialMedia(url: String!): [String]!
+  addSocialMedia(url: urlInput): [String]!
   unreward(fromBadgeId: ID!, toUserId: ID!): ID
   "Shout the given Type and ID"
   shout(id: ID!, type: ShoutTypeEnum): Boolean! @cypher(statement: """
@@ -310,3 +310,12 @@ type SharedInboxEndpoint {
   id: ID!
   uri: String
 }
+
+type SocialMedia {
+  id: ID!
+  uri: String
+}
+
+input urlInput {
+  url: String! @constraint(format: "uri")
+}
\ No newline at end of file
diff --git a/backend/src/server.js b/backend/src/server.js
index efa9a17c0..7b5ad31e1 100644
--- a/backend/src/server.js
+++ b/backend/src/server.js
@@ -10,6 +10,9 @@ import applyScalars from './bootstrap/scalars'
 import { getDriver } from './bootstrap/neo4j'
 import helmet from 'helmet'
 import decode from './jwt/decode'
+// import ConstraintDirective from 'graphql-constraint-directive'
+const ConstraintDirective = require('graphql-constraint-directive')
+
 
 dotenv.config()
 // check env and warn
@@ -25,6 +28,7 @@ const debug = process.env.NODE_ENV !== 'production' && process.env.DEBUG === 'tr
 
 let schema = makeAugmentedSchema({
   typeDefs,
+  schemaDirectives: { constraint: ConstraintDirective },
   resolvers,
   config: {
     query: {
diff --git a/backend/yarn.lock b/backend/yarn.lock
index 53f6926dc..1dae8d21e 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -1336,7 +1336,7 @@ apollo-link-http@~1.5.14:
     apollo-link-http-common "^0.2.13"
     tslib "^1.9.3"
 
-apollo-link@^1.0.0, apollo-link@^1.2.11, apollo-link@^1.2.3, apollo-link@^1.2.4:
+apollo-link@^1.0.0, apollo-link@^1.2.11, apollo-link@^1.2.2, apollo-link@^1.2.3, apollo-link@^1.2.4:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/apollo-link/-/apollo-link-1.2.11.tgz#493293b747ad3237114ccd22e9f559e5e24a194d"
   integrity sha512-PQvRCg13VduLy3X/0L79M6uOpTh5iHdxnxYuo8yL7sJlWybKRJwsv4IcRBJpMFbChOOaHY7Og9wgPo6DLKDKDA==
@@ -3646,6 +3646,14 @@ graphql-auth-directives@^2.1.0:
     graphql-tools "^4.0.4"
     jsonwebtoken "^8.3.0"
 
+graphql-constraint-directive@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/graphql-constraint-directive/-/graphql-constraint-directive-1.3.0.tgz#f041cc0429155fb3f4ef6941b4add42fa4b77a3f"
+  integrity sha512-z3LTSUbwkvvpu6/ywccGfNg+7pXp+cjEzgioaK/QDsHIehKju1SM6KPBTDVPugSJbVXb8M80Jxt6mOC7t//SmA==
+  dependencies:
+    graphql-tools "^3.0.1"
+    validator "^10.2.0"
+
 graphql-custom-directives@~0.2.14:
   version "0.2.14"
   resolved "https://registry.yarnpkg.com/graphql-custom-directives/-/graphql-custom-directives-0.2.14.tgz#88611b8cb074477020ad85af47bfe168c4c23992"
@@ -3757,6 +3765,17 @@ graphql-tag@^2.9.2, graphql-tag@~2.10.1:
   resolved "https://registry.yarnpkg.com/graphql-tag/-/graphql-tag-2.10.1.tgz#10aa41f1cd8fae5373eaf11f1f67260a3cad5e02"
   integrity sha512-jApXqWBzNXQ8jYa/HLkZJaVw9jgwNqZkywa2zfFn16Iv1Zb7ELNHkJaXHR7Quvd5SIGsy6Ny7SUKATgnu05uEg==
 
+graphql-tools@^3.0.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-3.1.1.tgz#d593358f01e7c8b1671a17b70ddb034dea9dbc50"
+  integrity sha512-yHvPkweUB0+Q/GWH5wIG60bpt8CTwBklCSzQdEHmRUgAdEQKxw+9B7zB3dG7wB3Ym7M7lfrS4Ej+jtDZfA2UXg==
+  dependencies:
+    apollo-link "^1.2.2"
+    apollo-utilities "^1.0.1"
+    deprecated-decorator "^0.1.6"
+    iterall "^1.1.3"
+    uuid "^3.1.0"
+
 graphql-tools@^4.0.0, graphql-tools@^4.0.4:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-4.0.4.tgz#ca08a63454221fdde825fe45fbd315eb2a6d566b"
@@ -7842,6 +7861,11 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
+validator@^10.2.0:
+  version "10.11.0"
+  resolved "https://registry.yarnpkg.com/validator/-/validator-10.11.0.tgz#003108ea6e9a9874d31ccc9e5006856ccd76b228"
+  integrity sha512-X/p3UZerAIsbBfN/IwahhYaBbY68EN/UQBWHtsbXGT5bfrH/p4NQzUCG1kF/rtKaNpnJ7jAu6NGTdSNtyNIXMw==
+
 vary@^1, vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"