Fixed getLogs filter deserialization (ethers-io#805).

michaeltout · Apr 28, 2020 · ab50bc1 · ab50bc1
1 parent 6b3da08
commit ab50bc1
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src.ts/base-provider.ts b/src.ts/base-provider.ts
@@ -50,6 +50,7 @@ function serializeTopics(topics: Array<string | Array<string>>): string {
             sorted.sort();
 
             return sorted.join("|");
+
         } else {
             return checkTopic(topic);
         }
@@ -58,10 +59,15 @@ function serializeTopics(topics: Array<string | Array<string>>): string {
 
 function deserializeTopics(data: string): Array<string | Array<string>> {
     if (data === "") { return [ ]; }
+
     return data.split(/&/g).map((topic) => {
-        return topic.split("|").map((topic) => {
+        if (topic === "") { return [ ]; }
+
+        const comps = topic.split("|").map((topic) => {
             return ((topic === "null") ? null: topic);
         });
+
+        return ((comps.length === 1) ? comps[0]: comps);
     });
 }