Update default params in sendRawPaylodAsync for improved JSON-RPC compatibility

1 files changed, 7 insertions, 2 deletions

diff --git a/packages/web3-wrapper/src/web3_wrapper.ts b/packages/web3-wrapper/src/web3_wrapper.ts
index 5d2eedcb3..6ea69883c 100644
--- a/packages/web3-wrapper/src/web3_wrapper.ts
+++ b/packages/web3-wrapper/src/web3_wrapper.ts
@@ -491,8 +491,13 @@ export class Web3Wrapper {
     }
     private async _sendRawPayloadAsync<A>(payload: Partial<JSONRPCRequestPayload>): Promise<A> {
         const sendAsync = this._web3.currentProvider.sendAsync.bind(this._web3.currentProvider);
-        payload.id = this._jsonRpcRequestId++;
-        const response = await promisify<JSONRPCResponsePayload>(sendAsync)(payload);
+        const payloadWithDefaults = {
+            id: this._jsonRpcRequestId++,
+            params: [],
+            jsonrpc: '2.0',
+            ...payload,
+        };
+        const response = await promisify<JSONRPCResponsePayload>(sendAsync)(payloadWithDefaults);
         const result = response.result;
         return result;
     }