[SDK] Simplify RPC request handling (#6752)

Author: joaquim-verges

.changeset/orange-icons-hide.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
+Simplify RPC request handling

packages/thirdweb/src/rpc/fetch-rpc.ts

@@ -78,16 +78,7 @@ export async function fetchRpc(
     );
   }
 
-  if (response.headers.get("Content-Type")?.startsWith("application/json")) {
-    return await response.json();
-  }
-  const text = await response.text();
-  try {
-    return JSON.parse(text);
-  } catch (err) {
-    console.error("Error parsing response", err, text);
-    throw err;
-  }
+  return await response.json();
 }
 
 type FetchSingleRpcOptions = {
@@ -121,14 +112,5 @@ export async function fetchSingleRpc(
       `RPC request failed with status ${response.status} - ${response.statusText}: ${error || "unknown error"}`,
     );
   }
-  if (response.headers.get("Content-Type")?.startsWith("application/json")) {
-    return await response.json();
-  }
-  const text = await response.text();
-  try {
-    return JSON.parse(text);
-  } catch (err) {
-    console.error("Error parsing response", err, text);
-    throw err;
-  }
+  return await response.json();
 }

packages/thirdweb/src/rpc/rpc.ts

@@ -144,7 +144,11 @@ export function getRpcClient(
 
             // No response.
             if (!response) {
-              inflight.reject(new Error("No response"));
+              inflight.reject(
+                new Error(
+                  `No response for index ${index} - all responses: ${stringify(responses)}`,
+                ),
+              );
             }
             // Response is an error or error string.
             else if (response instanceof Error) {