From 9acb745956510b3e783a71e302ba4d5b1fe39daa Mon Sep 17 00:00:00 2001
From: Leonid Logvinov <logvinov.leon@gmail.com>
Date: Thu, 31 Aug 2017 11:26:20 +0200
Subject: Add sendAsync types in provider

---
 packages/web3-typescript-typings/index.d.ts | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/packages/web3-typescript-typings/index.d.ts b/packages/web3-typescript-typings/index.d.ts
index 2f2cfa4b6..2f89941a3 100644
--- a/packages/web3-typescript-typings/index.d.ts
+++ b/packages/web3-typescript-typings/index.d.ts
@@ -94,7 +94,25 @@ declare module 'web3' {
             stopWatching(callback: () => void): void;
         }
 
-        interface Provider {}
+        export interface JSONRPCRequestPayload {
+            params: any[];
+            method: string;
+            id: number;
+            jsonrpc: string;
+        }
+
+        export interface JSONRPCResponsePayload {
+            result: any;
+            id: number;
+            jsonrpc: string;
+        }
+
+        interface Provider {
+            sendAsync(
+                payload: JSONRPCRequestPayload,
+                callback: (err: Error, result: JSONRPCResponsePayload) => void,
+            );
+        }
 
         interface Sha3Options {
             encoding: 'hex';
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