fix: Resolve "TypeError: Cannot read properties of null (reading 'ser…

…vice') at ServerlessInvoker.loadServerlessEvents" when calling invoke (#127)

ensures initializeServerless() runs sequentially as described in #126

fixes #126

Co-authored-by: scott willeke <scott@willeke.com>

index.js

@@ -56,7 +56,7 @@ class ServerlessInvoker {
     const sls = new Serverless(config)
     // NOTE: I've seen sls.init() run very slowly; nearly 500ms!
     return sls.init().then(() => {
-      sls.service.load().then(() => {
+      return sls.service.load().then(() => {
         sls.service.setFunctionNames({})
         sls.service.mergeArrays()
         sls.service.validate()