Merge pull request #1131 from 0xProject/feature/instant/move-features-over-from-zrx-buyer

[instant][types][order-utils][asset-buyer] Move over and clean up features from zrx-buyer

1 files changed, 12 insertions, 0 deletions

diff --git a/packages/instant/src/util/provider.ts b/packages/instant/src/util/provider.ts
new file mode 100644
index 000000000..49705fd11
--- /dev/null
+++ b/packages/instant/src/util/provider.ts
@@ -0,0 +1,12 @@
+import { Provider } from 'ethereum-types';
+
+export const getProvider = (): Provider => {
+    const injectedWeb3 = (window as any).web3 || undefined;
+    try {
+        // Use MetaMask/Mist provider
+        return injectedWeb3.currentProvider;
+    } catch (err) {
+        // Throws when user doesn't have MetaMask/Mist running
+        throw new Error(`No injected web3 found: ${err}`);
+    }
+};