feat: add partialUpdate method to APIUpdate mixin

src/api.ts

@@ -268,26 +268,31 @@ export function APIRetrieve<T extends APIObject>(api: ExtendableAPI<T>) {
   return { retrieve, retrieveMultiple }
 }
 
-export function APIUpdate<T extends APIObject, TData = Partial<T>>(api: ExtendableAPI<T>) {
-  async function update(
-    id: T['id'],
-    data: TData | FormData,
-    options: BaseRequestOptions = {},
-  ): Promise<T> {
-    const res = await fetch(
-      api.createRequest(api.endpoint(id.toString()), options.requestInit, {
-        method: 'PUT',
-        headers: data instanceof FormData ? undefined : { 'Content-Type': 'application/json' },
-        body: data instanceof FormData ? data : JSON.stringify(data),
-      }),
-    )
-    await api.maybeRaiseResponse(res)
-    const obj: T = await res.json()
-    api.itemMap.value.set(obj.id, obj)
-    return obj
+export function APIUpdate<
+  T extends APIObject,
+  TUpdateData = Partial<T>,
+  TPartialUpdateData = Partial<TUpdateData>,
+>(api: ExtendableAPI<T>) {
+  function updateWith<TData>(method: 'PUT' | 'PATCH') {
+    return async function (id: T['id'], data: FormData | TData, options: BaseRequestOptions = {}) {
+      const res = await fetch(
+        api.createRequest(api.endpoint(id.toString()), options.requestInit, {
+          method,
+          headers: data instanceof FormData ? undefined : { 'Content-Type': 'application/json' },
+          body: data instanceof FormData ? data : JSON.stringify(data),
+        }),
+      )
+      await api.maybeRaiseResponse(res)
+      const obj: T = await res.json()
+      api.itemMap.value.set(obj.id, obj)
+      return obj
+    }
   }
 
-  return { update }
+  const update = updateWith<TUpdateData>('PUT')
+  const partialUpdate = updateWith<TPartialUpdateData>('PATCH')
+
+  return { update, partialUpdate }
 }
 
 export function APICreate<T extends APIObject, TData = Partial<Omit<T, 'id'>>>(