Add setFBAppID method for Android

android/src/main/java/io/branch/rnbranch/RNBranchModule.java

@@ -1257,4 +1257,11 @@ public void setDMAParamsForEEA(boolean eeaRegion, boolean adPersonalizationConse
     public void validateSDKIntegration() {
         IntegrationValidator.validate(mActivity);
     }
+
+    @ReactMethod
+    public void setFBAppID(String fbAppID) {
+        Branch branch = Branch.getInstance();
+        branch.setFBAppID(fbAppID);
+    }
+
 }

ios/RNBranch.m

@@ -750,4 +750,10 @@ - (CGFloat) colorComponentFrom: (NSString *) string start: (NSUInteger) start le
     [[Branch getInstance] validateSDKIntegration];
 }
 
+#pragma mark setIdentity
+RCT_EXPORT_METHOD(
+                  setFBAppID:(NSString *)fbAppID
+                  ) {
+}
+
 @end

src/index.d.ts

@@ -349,6 +349,7 @@ interface Branch {
   setPreInstallPartner: (partner: string) => void;
   setDMAParamsForEEA: (eeaRegion: boolean, adPersonalizationConsent: boolean, adUserDataUsageConsent: boolean) => void;
   validateSDKIntegration: () => void;
+  setFBAppID: (fbAppID: string) => void;
 }
 declare const branch: Branch;
 export default branch;

src/index.js

@@ -167,7 +167,9 @@ class Branch {
 
   validateSDKIntegration = () => {
     RNBranch.validateSDKIntegration();
-  };  
+  };
+
+  setFBAppID = (fbAppID) => RNBranch.setFBAppID(fbAppID);
 }
 
 const validateParam = (param, paramName) => {