Add json-loader plugin

Author: ije

plugins/json.ts

@@ -0,0 +1,17 @@
+import type { Plugin } from '../types.d.ts'
+
+// todo: remove this plugin when deno support `json` module
+// check https://github.com/denoland/deno/issues/7623
+export default (): Plugin => {
+  return {
+    name: 'json-loader',
+    setup: aleph => {
+      aleph.onLoad(/\.json$/i, async ({ specifier }) => {
+        const { content } = await aleph.fetchModule(specifier)
+        return {
+          code: `export default ` + new TextDecoder().decode(content)
+        }
+      })
+    }
+  }
+}