1 files changed, 23 insertions, 0 deletions
diff --git a/lib/fetchJson.js b/lib/fetchJson.js
new file mode 100644
index 0000000..5db80b5
--- /dev/null
+++ b/lib/fetchJson.js
@@ -0,0 +1,23 @@
+export default async function fetcher(...args) {
+  try {
+    const response = await fetch(...args)
+
+    // if the server replies, there's always some data in json
+    // if there's a network error, it will throw at the previous line
+    const data = await response.json()
+
+    if (response.ok) {
+      return data
+    }
+
+    const error = new Error(response.statusText)
+    error.response = response
+    error.data = data
+    throw error
+  } catch (error) {
+    if (!error.data) {
+      error.data = {message: error.message}
+    }
+    throw error
+  }
+}