Merge pull request #25 from 0xProject/dontReinstantiateContractInstances

Add zeroEx.setProvider and clear contractInstances created with old provider

1 files changed, 9 insertions, 0 deletions

diff --git a/src/0x.js.ts b/src/0x.js.ts
index f3da005f8..4c67027fc 100644
--- a/src/0x.js.ts
+++ b/src/0x.js.ts
@@ -137,6 +137,15 @@ export class ZeroEx {
         this.tokenRegistry = new TokenRegistryWrapper(this.web3Wrapper);
     }
     /**
+     * Sets a new provider for the web3 instance used by 0x.js internally and invalidates any instantiated
+     * contract instances instantiated with the old provider.
+     */
+    public setProvider(provider: Web3.Provider) {
+        this.web3Wrapper.setProvider(provider);
+        this.exchange.invalidateContractInstance();
+        this.tokenRegistry.invalidateContractInstance();
+    }
+    /**
      * Signs an orderHash and returns it's elliptic curve signature
      * This method currently supports TestRPC, Geth and Parity above and below V1.6.6
      */