add query fallback support for alb multi-value

jeremydaly · jeremydaly · commit e572f6cae980 · 2018-12-23T10:18:35.000-05:00
diff --git a/lib/request.js b/lib/request.js
@@ -67,13 +67,19 @@ class REQUEST {
     // Set the path
     this.path = this.app._event.path
 
-    // Set the query parameters
-    this.query = Object.assign({}, this.app._event.queryStringParameters)
+    // Set the query parameters (backfill for ALB)
+    this.query = Object.assign({}, this.app._event.queryStringParameters,
+      'queryStringParameters' in this.app._event ? {} // do nothing
+        : Object.assign({},Object.keys(this.app._event.multiValueQueryStringParameters)
+          .reduce((qs,key) => Object.assign(qs, // get the last value of the array
+            { [key]: this.app._event.multiValueQueryStringParameters[key].slice(-1)[0] }
+          ), {}))
+    )
 
     // Set the multi-value query parameters (simulate if no mult-value support)
     this.multiValueQuery = Object.assign({},
       this._multiValueSupport ? {} : Object.keys(this.query)
-        .reduce((qs,key) => Object.assign(qs, { [key]: [this.query[key]] }),{}),
+        .reduce((qs,key) => Object.assign(qs, { [key]: [this.query[key]] }), {}),
       this.app._event.multiValueQueryStringParameters)
 
     // Set the raw headers
