feat: amplitude add support for unset

src/v0/destinations/am/transform.js

@@ -297,6 +297,15 @@ const identifyBuilder = (message, destination, rawPayload) => {
       }
     });
   }
+  // update identify call request with unset fields
+  // AM docs https://www.docs.developers.amplitude.com/analytics/apis/http-v2-api/#keys-for-the-event-argument:~:text=exceed%2040%20layers.-,user_properties,-Optional.%20Object.%20A
+  const unsetObject = AMUtils.getUnsetObj(message);
+  if (unsetObject) {
+    // Example   unsetObject = {
+    //     "testObj.del1": "-"
+    // }
+    set(rawPayload, `user_properties.$unset`, unsetObject);
+  }
   return rawPayload;
 };
 
@@ -334,7 +343,7 @@ const getResponseData = (evType, destination, rawPayload, message, groupInfo) =>
     case EventType.IDENTIFY:
       // event_type for identify event is $identify
       rawPayload.event_type = IDENTIFY_AM;
-      identifyBuilder(message, destination, rawPayload);
+      rawPayload = identifyBuilder(message, destination, rawPayload);
       break;
     case EventType.GROUP:
       // event_type for identify event is $identify

src/v0/destinations/am/util.test.js

@@ -0,0 +1,57 @@
+const { getUnsetObj } = require('./utils');
+
+describe('getUnsetObj', () => {
+  it("should return undefined when 'message.integrations.Amplitude.fieldsToUnset' is undefined", () => {
+    const message = {
+      integrations: {
+        Amplitude: {},
+      },
+    };
+    const result = getUnsetObj(message);
+    expect(result).toBeUndefined();
+  });
+
+  it("should return an empty objecty when 'message.integrations.Amplitude.fieldsToUnset' is an empty array", () => {
+    const message = {
+      integrations: {
+        Amplitude: { fieldsToUnset: [] },
+      },
+    };
+    const result = getUnsetObj(message);
+    expect(result).toEqual({});
+  });
+
+  it("should return an object with keys and values set to '-' when 'message.integrations.Amplitude.fieldsToUnset' is an array of strings", () => {
+    const message = {
+      integrations: {
+        Amplitude: { fieldsToUnset: ['Unset1', 'Unset2'] },
+      },
+    };
+    const result = getUnsetObj(message);
+    expect(result).toEqual({
+      Unset1: '-',
+      Unset2: '-',
+    });
+  });
+
+  it("should handle missing 'message' parameter", () => {
+    const result = getUnsetObj();
+    expect(result).toBeUndefined();
+  });
+
+  // Should handle missing 'integrations' property in 'message' parameter
+  it("should handle missing 'integrations' property in 'message' parameter", () => {
+    const message = {};
+    const result = getUnsetObj(message);
+    expect(result).toBeUndefined();
+  });
+
+  // Should handle missing 'Amplitude' property in 'message.integrations' parameter
+  it("should handle missing 'Amplitude' property in 'message.integrations' parameter", () => {
+    const message = {
+      integrations: {},
+    };
+    const result = getUnsetObj(message);
+    expect(result).toBeUndefined();
+  });
+});

src/v0/destinations/am/utils.js

@@ -82,6 +82,31 @@ const getEventId = (payload, sourceKey) => {
   return undefined;
 };
 
+/**
+ * generates the unsetObject and returns it 
+ * @param {*} message 
+ * @returns 
+ * 
+ * Example message = {
+    integrations: {
+      Amplitude: { fieldsToUnset: ['Unset1', 'Unset2'] },
+      All: true,
+    },
+  };
+  return unsetObj = {
+        "Unset1": "-",
+        "Unset2": "-"
+      }
+ */
+const getUnsetObj = (message) => {
+  const fieldsToUnset = get(message, 'integrations.Amplitude.fieldsToUnset');
+  let unsetObject;
+  if (fieldsToUnset) {
+    unsetObject = Object.fromEntries(fieldsToUnset.map((field) => [field, '-']));
+  }
+
+  return unsetObject;
+};
 module.exports = {
   getOSName,
   getOSVersion,
@@ -90,4 +115,5 @@ module.exports = {
   getPlatform,
   getBrand,
   getEventId,
+  getUnsetObj,
 };

test/integrations/destinations/am/processor/data.ts

@@ -488,6 +488,10 @@ export const data = [
           {
             message: {
               channel: 'web',
+              integrations: {
+                Amplitude: { fieldsToUnset: ['email'] },
+                All: true,
+              },
               context: {
                 externalId: [
                   {
@@ -562,9 +566,6 @@ export const data = [
               originalTimestamp: '2019-10-14T09:03:17.562Z',
               anonymousId: '123456',
               userId: '123456',
-              integrations: {
-                All: true,
-              },
               sentAt: '2019-10-14T09:03:22.563Z',
             },
             metadata: {
@@ -616,6 +617,9 @@ export const data = [
                       insert_id: '84e26acc-56a5-4835-8233-591137fca468',
                       ip: '0.0.0.0',
                       user_properties: {
+                        $unset: {
+                          email: '-',
+                        },
                         initial_referrer: 'https://docs.rudderstack.com',
                         initial_referring_domain: 'docs.rudderstack.com',
                         anonymousId: '123456',
@@ -743,6 +747,7 @@ export const data = [
               anonymousId: '123456',
               userId: '123456',
               integrations: {
+                Amplitude: { fieldsToUnset: ['testObj.unsetField1'] },
                 All: true,
               },
               sentAt: '2019-10-14T09:03:22.563Z',
@@ -791,6 +796,9 @@ export const data = [
                       insert_id: '84e26acc-56a5-4835-8233-591137fca468',
                       ip: '0.0.0.0',
                       user_properties: {
+                        $unset: {
+                          'testObj.unsetField1': '-',
+                        },
                         initial_referrer: 'https://docs.rudderstack.com',
                         initial_referring_domain: 'docs.rudderstack.com',
                         anonymousId: '123456',