Fix: get networkId for truffle artifacts

lib/artifactor.js

@@ -1,3 +1,4 @@
+const SyncRequest = require("./syncRequest");
 const { parseSoliditySources } = require("./utils");
 
 /**
@@ -6,6 +7,7 @@ const { parseSoliditySources } = require("./utils");
 class Artifactor {
   constructor(config) {
     this.config = config;
+    this.sync = new SyncRequest(config.url);
   }
 
   /**
@@ -92,7 +94,8 @@ class Artifactor {
     // or truffle versions. Catching because truffle
     // is sometimes weird re: artifact access.
     try {
-      deployed = artifact.networks[this.networkId];
+      const networkId = !this.config.provider ? this.sync.getNetworkId() : null;
+      deployed = artifact.networks[networkId];
       metadata = artifact.metadata;
     } catch (err) {}