Schema endpoint

crates/pile-config/src/lib.rs

@@ -1,4 +1,4 @@
-use serde::Deserialize;
+use serde::{Deserialize, Serialize};
 use std::{collections::HashMap, fmt::Debug, path::PathBuf};
 
 use crate::{objectpath::ObjectPath, pattern::GroupPattern};
@@ -61,7 +61,7 @@ pub enum Source {
 // MARK: schema
 //
 
-#[derive(Debug, Clone, Deserialize)]
+#[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct FieldSpec {
 	/// How to find this field in a data entry
 	pub path: Vec<ObjectPath>,