1 files changed, 29 insertions, 0 deletions
diff --git a/std/fs/read_json.ts b/std/fs/read_json.ts
new file mode 100644
index 000000000..ca5928afe
--- /dev/null
+++ b/std/fs/read_json.ts
@@ -0,0 +1,29 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+
+/** Reads a JSON file and then parses it into an object */
+export async function readJson(filePath: string): Promise<unknown> {
+  const decoder = new TextDecoder("utf-8");
+
+  const content = decoder.decode(await Deno.readFile(filePath));
+
+  try {
+    return JSON.parse(content);
+  } catch (err) {
+    err.message = `${filePath}: ${err.message}`;
+    throw err;
+  }
+}
+
+/** Reads a JSON file and then parses it into an object */
+export function readJsonSync(filePath: string): unknown {
+  const decoder = new TextDecoder("utf-8");
+
+  const content = decoder.decode(Deno.readFileSync(filePath));
+
+  try {
+    return JSON.parse(content);
+  } catch (err) {
+    err.message = `${filePath}: ${err.message}`;
+    throw err;
+  }
+}