server: add mutation to mark messages as read

server/src/bin/server.rs

@@ -2,7 +2,7 @@
 extern crate rocket;
 use std::{error::Error, io::Cursor, str::FromStr};
 
-use async_graphql::{http::GraphiQLSource, EmptyMutation, EmptySubscription, Schema};
+use async_graphql::{http::GraphiQLSource, EmptySubscription, Schema};
 use async_graphql_rocket::{GraphQLQuery, GraphQLRequest, GraphQLResponse};
 use glog::Flags;
 use notmuch::{Notmuch, NotmuchError, ThreadSet};
@@ -16,7 +16,7 @@ use rocket::{
 use rocket_cors::{AllowedHeaders, AllowedOrigins};
 use server::{
     error::ServerError,
-    graphql::{GraphqlSchema, QueryRoot},
+    graphql::{GraphqlSchema, Mutation, QueryRoot},
 };
 
 #[get("/refresh")]
@@ -182,7 +182,7 @@ async fn main() -> Result<(), Box<dyn Error>> {
     }
     .to_cors()?;
 
-    let schema = Schema::build(QueryRoot, EmptyMutation, EmptySubscription)
+    let schema = Schema::build(QueryRoot, Mutation, EmptySubscription)
         .data(Notmuch::default())
         .extension(async_graphql::extensions::Logger)
         .finish();