graph2: Added Chapter mutations

graph2/schema/root.gql

@@ -1,5 +1,6 @@
 schema {
   query: Query
+  mutation: Mutation
 }
 
 type Query {
@@ -57,6 +58,17 @@ type Query {
   token: Token!
 }
 
+type Mutation {
+  # Add a chapter to a story
+  addChapter(input: ChapterAddInput!): Chapter!
+
+  # Edit a chapter
+  editChapter(input: ChapterEditInput!): Chapter!
+
+  # Remove a chapter
+  removeChapter(input: ChapterRemoveInput!): Chapter!
+}
+
 # A Date represents a RFC3339 encoded date with up to millisecond precision.
 scalar Date
 

graph2/schema/types/Chapter.gql

@@ -56,4 +56,10 @@ input ChapterEditInput {
 
   # Set the fictional date for a chapter
   fictionalDate: Date
+}
+
+# Input for removeChapter mutation
+input ChapterRemoveInput {
+  # The chapter to remove
+  id: String!
 }