Add base acc server

schema/schema.graphql

@@ -0,0 +1,31 @@
+type Query {
+  human(id: ID!): Human
+  character(id: ID!): Character
+}
+
+enum LengthUnit {
+  Meter
+  Feet
+}
+
+interface Character {
+  id: ID!
+  name: String!
+}
+
+type Human  implements Character{
+  id: ID!
+  name: String!
+  friends: [Human!]
+  height(unit: LengthUnit = METER): Unit!
+  friendsConnection(first: Int, after: ID): FriendsConnection!
+}
+
+type FriendsConnection {
+  totalCount: Int!
+  friends: [Character!]
+}
+
+type Unit {
+  value: Float!
+}