Throw error on subgraph when errors exist in response (#542)

* Throw error on subgraph when errors exist in response

* 0.3.66

Co-authored-by: mkt <[email protected]>

Author: ChaituVR

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@snapshot-labs/snapshot.js",
-  "version": "0.3.65",
+  "version": "0.3.66",
   "repository": "snapshot-labs/snapshot.js",
   "license": "MIT",
   "main": "dist/snapshot.cjs.js",

src/utils.ts

@@ -94,7 +94,15 @@ export async function subgraphRequest(url: string, query, options: any = {}) {
     },
     body: JSON.stringify({ query: jsonToGraphQLQuery({ query }) })
   });
-  const { data } = await res.json();
+  const responseData = await res.json();
+  if (responseData.errors) {
+    throw new Error(
+      'Errors found in subgraphRequest: ' +
+        url +
+        JSON.stringify(responseData.errors)
+    );
+  }
+  const { data } = responseData;
   return data || {};
 }