Add provider list and edit pages.

web/src/backend/ProviderBackend.js

@@ -0,0 +1,42 @@
+import * as Setting from "../Setting";
+
+export function getProviders(owner) {
+  return fetch(`${Setting.ServerUrl}/api/get-providers?owner=${owner}`, {
+    method: "GET",
+    credentials: "include"
+  }).then(res => res.json());
+}
+
+export function getProvider(owner, name) {
+  return fetch(`${Setting.ServerUrl}/api/get-provider?id=${owner}/${encodeURIComponent(name)}`, {
+    method: "GET",
+    credentials: "include"
+  }).then(res => res.json());
+}
+
+export function updateProvider(owner, name, provider) {
+  let newProvider = Setting.deepCopy(provider);
+  return fetch(`${Setting.ServerUrl}/api/update-provider?id=${owner}/${encodeURIComponent(name)}`, {
+    method: 'POST',
+    credentials: 'include',
+    body: JSON.stringify(newProvider),
+  }).then(res => res.json());
+}
+
+export function addProvider(provider) {
+  let newProvider = Setting.deepCopy(provider);
+  return fetch(`${Setting.ServerUrl}/api/add-provider`, {
+    method: 'POST',
+    credentials: 'include',
+    body: JSON.stringify(newProvider),
+  }).then(res => res.json());
+}
+
+export function deleteProvider(provider) {
+  let newProvider = Setting.deepCopy(provider);
+  return fetch(`${Setting.ServerUrl}/api/delete-provider`, {
+    method: 'POST',
+    credentials: 'include',
+    body: JSON.stringify(newProvider),
+  }).then(res => res.json());
+}