Log Http/Ws request on error (#6091)

* Log Http request alongside HTTP error

* Log WS request alongside WS error and improve http

* lint

Author: valentinfernandez1

packages/rpc-provider/src/http/index.ts

@@ -1,6 +1,7 @@
 // Copyright 2017-2025 @polkadot/rpc-provider authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
+import type RpcError from '../coder/error.js';
 import type { JsonRpcResponse, ProviderInterface, ProviderInterfaceCallback, ProviderInterfaceEmitCb, ProviderInterfaceEmitted, ProviderStats } from '../types.js';
 
 import { logger, noop, stringify } from '@polkadot/util';
@@ -185,7 +186,18 @@ export class HttpProvider implements ProviderInterface {
       this.#stats.active.requests--;
       this.#stats.total.errors++;
 
-      throw e;
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+      const { method, params } = JSON.parse(body);
+
+      const rpcError: RpcError = e as RpcError;
+
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+      const failedRequest = `\nFailed HTTP Request: ${JSON.stringify({ method, params })}`;
+
+      // Provide HTTP Request alongside the error
+      rpcError.message = `${rpcError.message}${failedRequest}`;
+
+      throw rpcError;
     }
   }
 

packages/rpc-provider/src/ws/index.ts

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Class } from '@polkadot/util/types';
+import type RpcError from '../coder/error.js';
 import type { EndpointStats, JsonRpcResponse, ProviderInterface, ProviderInterfaceCallback, ProviderInterfaceEmitCb, ProviderInterfaceEmitted, ProviderStats } from '../types.js';
 
 import { EventEmitter } from 'eventemitter3';
@@ -372,7 +373,12 @@ export class WsProvider implements ProviderInterface {
         this.#endpointStats.errors++;
         this.#stats.total.errors++;
 
-        reject(error);
+        const rpcError: RpcError = error as RpcError;
+        const failedRequest = `\nFailed WS Request: ${JSON.stringify({ method, params })}`;
+
+        // Provide WS Request alongside the error
+        rpcError.message = `${rpcError.message}${failedRequest}`;
+        reject(rpcError);
       }
     });
   }