From 3456786463e6e24adaa601aa0dcf73e47dc09fcd Mon Sep 17 00:00:00 2001
From: Jean Mertz <jean@mertz.fm>
Date: Thu, 23 May 2019 08:33:01 +0200
Subject: [PATCH] Implement Serialize/Deserialize for ID scalar

As per the unofficial Rust API guidelines:

https://rust-lang-nursery.github.io/api-guidelines/interoperability.html#data-structures-implement-serdes-serialize-deserialize-c-serde
---
 juniper/CHANGELOG.md         | 2 +-
 juniper/src/types/scalars.rs | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/juniper/CHANGELOG.md b/juniper/CHANGELOG.md
index f1d4c3c3..0b245d26 100644
--- a/juniper/CHANGELOG.md
+++ b/juniper/CHANGELOG.md
@@ -1,6 +1,6 @@
 # master
 
-- No changes yet
+- The `ID` scalar now implements Serde's `Serialize` and `Deserialize`
 
 # [[0.12.0] 2019-05-16](https://github.com/graphql-rust/juniper/releases/tag/juniper-0.12.0)
 
diff --git a/juniper/src/types/scalars.rs b/juniper/src/types/scalars.rs
index 6b969ce5..f0b8f2e0 100644
--- a/juniper/src/types/scalars.rs
+++ b/juniper/src/types/scalars.rs
@@ -1,3 +1,4 @@
+use serde_derive::{Deserialize, Serialize};
 use std::convert::From;
 use std::marker::PhantomData;
 use std::ops::Deref;
@@ -13,7 +14,7 @@ use crate::value::{ParseScalarResult, ScalarRefValue, ScalarValue, Value};
 /// An ID as defined by the GraphQL specification
 ///
 /// Represented as a string, but can be converted _to_ from an integer as well.
-#[derive(Clone, Debug, Eq, PartialEq)]
+#[derive(Clone, Debug, Eq, PartialEq, Serialize, Deserialize)]
 pub struct ID(String);
 
 impl From<String> for ID {