From c5fcea1dbd5e64e72eb5cf360558de9f9b886a16 Mon Sep 17 00:00:00 2001
From: Alex Browne <stephenalexbrowne@gmail.com>
Date: Tue, 3 Jul 2018 10:40:54 -0700
Subject: Actually cache node type in web3-wrapper

---
 packages/web3-wrapper/src/web3_wrapper.ts | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'packages/web3-wrapper')

diff --git a/packages/web3-wrapper/src/web3_wrapper.ts b/packages/web3-wrapper/src/web3_wrapper.ts
index e4df31def..c2754a13e 100644
--- a/packages/web3-wrapper/src/web3_wrapper.ts
+++ b/packages/web3-wrapper/src/web3_wrapper.ts
@@ -49,6 +49,7 @@ export class Web3Wrapper {
     private _web3: Web3;
     private _txDefaults: Partial<TxData>;
     private _jsonRpcRequestId: number;
+    private _nodeType: NodeType | undefined;
     /**
      * Check if an address is a valid Ethereum address
      * @param address Address to check
@@ -501,10 +502,15 @@ export class Web3Wrapper {
      * function caches the result and so subsequent calls are fast.
      */
     public async getNodeTypeAsync(): Promise<NodeType> {
+        if (!_.isUndefined(this._nodeType)) {
+            return this._nodeType;
+        }
         const version = await this.getNodeVersionAsync();
         if (_.includes(version, uniqueVersionIds.geth)) {
+            this._nodeType = NodeType.Geth;
             return NodeType.Geth;
         } else if (_.includes(version, uniqueVersionIds.ganache)) {
+            this._nodeType = NodeType.Ganache;
             return NodeType.Ganache;
         } else {
             throw new Error(`Unknown client version: ${version}`);
-- 
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