chore: stricter typing

src/PostgrestError.ts

@@ -1,8 +1,15 @@
-class PostgrestError extends Error {
-  constructor(details: { message?: string } & Record<string, unknown>) {
-    super(details.message ?? 'Unknown Postgrest error')
-    Object.assign(this, details)
+import type { PostgrestError as IPostgrestError } from './types'
+
+export default class PostgrestError extends Error implements IPostgrestError {
+  details: string
+  hint: string
+  code: string
+
+  constructor(context: IPostgrestError) {
+    super(context.message)
+    this.name = 'PostgrestError'
+    this.details = context.details
+    this.hint = context.hint
+    this.code = context.code
   }
 }
-
-export default PostgrestError

test/basic.ts

@@ -647,7 +647,7 @@ test('throwOnError throws errors instead of returning them', async () => {
 
 test('throwOnError throws errors which include stack', async () => {
   try {
-    const res = await postgrest.from('does_not_exist').select().throwOnError()
+    await postgrest.from('does_not_exist').select().throwOnError()
   } catch (err) {
     expect(err instanceof Error).toBe(true)
     expect((err as Error).stack).not.toBeUndefined()