Switch from ajv to io-ts for config validation; validate configs on save in the API/dashboard; start work on creating io-ts schemas for all plugins

dashboard/src/api.ts

@@ -3,6 +3,19 @@ const apiUrl = process.env.API_URL;
 
 type QueryParamObject = { [key: string]: string | null };
 
+export class ApiError extends Error {
+  protected body: object;
+  protected status: number;
+  protected res: Response;
+
+  constructor(message: string, body: object, status: number, res: Response) {
+    super(message);
+    this.body = body;
+    this.status = status;
+    this.res = res;
+  }
+}
+
 function buildQueryString(params: QueryParamObject) {
   if (Object.keys(params).length === 0) return "";
 
@@ -15,7 +28,14 @@ function buildQueryString(params: QueryParamObject) {
 }
 
 export function request(resource, fetchOpts: RequestInit = {}) {
-  return fetch(`${apiUrl}/${resource}`, fetchOpts).then(res => res.json());
+  return fetch(`${apiUrl}/${resource}`, fetchOpts).then(async res => {
+    if (!res.ok) {
+      const body = await res.json();
+      throw new ApiError(res.statusText, body, res.status, res);
+    }
+
+    return res.json();
+  });
 }
 
 export function get(resource: string, params: QueryParamObject = {}) {
@@ -32,7 +52,7 @@ export function post(resource: string, params: QueryParamObject = {}) {
   const headers: Record<string, string> = RootStore.state.auth.apiKey
     ? { "X-Api-Key": RootStore.state.auth.apiKey }
     : {};
-  return request(resource + buildQueryString(params), {
+  return request(resource, {
     method: "POST",
     body: JSON.stringify(params),
     headers: {