Add prerequisites field to SplitView

Author: EmilianoSanchez

src/sdkManager/__tests__/mocks/input.json

@@ -41,5 +41,15 @@
   "configurations": {
     "on": "\"color\": \"green\""
   },
-  "sets": ["set_a"]
-}
+  "sets": [
+    "set_a"
+  ],
+  "prerequisites": [
+    {
+      "n": "some_flag",
+      "ts": [
+        "on"
+      ]
+    }
+  ]
+}

src/sdkManager/__tests__/mocks/output.json

@@ -9,5 +9,9 @@
   },
   "sets": ["set_a"],
   "defaultTreatment": "off",
-  "impressionsDisabled": false
-}
+  "impressionsDisabled": false,
+  "prerequisites": [{
+    "flagName": "some_flag",
+    "treatments": ["on"]
+  }]
+}

src/sdkManager/index.ts

@@ -32,7 +32,8 @@ function objectToView(splitObject: ISplit | null): SplitIO.SplitView | null {
     configs: splitObject.configurations || {},
     sets: splitObject.sets || [],
     defaultTreatment: splitObject.defaultTreatment,
-    impressionsDisabled: splitObject.impressionsDisabled === true
+    impressionsDisabled: splitObject.impressionsDisabled === true,
+    prerequisites: (splitObject.prerequisites || []).map(p => ({ flagName: p.n, treatments: p.ts })),
   };
 }
 

types/splitio.d.ts

@@ -842,7 +842,7 @@ declare namespace SplitIO {
     /**
      * The list of treatments available for the feature flag.
      */
-    treatments: Array<string>;
+    treatments: string[];
     /**
      * Current change number of the feature flag.
      */
@@ -866,6 +866,10 @@ declare namespace SplitIO {
      * Whether the feature flag has impressions tracking disabled or not.
      */
     impressionsDisabled: boolean;
+    /**
+     * Prerequisites for the feature flag.
+     */
+    prerequisites: Array<{ flagName: string, treatments: string[] }>;
   };
   /**
    * A promise that resolves to a feature flag view or null if the feature flag is not found.