Monitor different state layers with OrderWatcher

Allow instantiation of stand-alone OrderWatchers
that can monitor different blockchain state
layers (e.g. pending or latest)

1 files changed, 1 insertions, 0 deletions

diff --git a/packages/0x.js/src/types.ts b/packages/0x.js/src/types.ts
index 38cfb6306..a13004720 100644
--- a/packages/0x.js/src/types.ts
+++ b/packages/0x.js/src/types.ts
@@ -175,6 +175,7 @@ export interface OrderStateWatcherConfig {
     eventPollingIntervalMs?: number;
     expirationMarginMs?: number;
     cleanupJobIntervalMs?: number;
+    stateLayer: BlockParamLiteral;
 }
 
 /*