diff --git a/packages/data-connect/src/api/Mutation.ts b/packages/data-connect/src/api/Mutation.ts
index ca2efdb7a30..570b28b0eab 100644
--- a/packages/data-connect/src/api/Mutation.ts
+++ b/packages/data-connect/src/api/Mutation.ts
@@ -76,7 +76,7 @@ export function mutationRef<Data, Variables>(
  * @internal
  */
 export class MutationManager {
-  private _inflight: Array<PromiseLike<unknown>> = [];
+  private _inflight: Array<Promise<unknown>> = [];
   constructor(private _transport: DataConnectTransport) {}
   executeMutation<Data, Variables>(
     mutationRef: MutationRef<Data, Variables>
@@ -95,7 +95,7 @@ export class MutationManager {
       return obj;
     });
     this._inflight.push(result);
-    const removePromise = (): Array<PromiseLike<unknown>> =>
+    const removePromise = (): Array<Promise<unknown>> =>
       (this._inflight = this._inflight.filter(promise => promise !== result));
     result.then(removePromise, removePromise);
     return withRefPromise;
@@ -113,7 +113,7 @@ export interface MutationResult<Data, Variables>
  * Mutation return value from `executeMutation`
  */
 export interface MutationPromise<Data, Variables>
-  extends PromiseLike<MutationResult<Data, Variables>> {
+  extends Promise<MutationResult<Data, Variables>> {
   // reserved for special actions like cancellation
 }
 
diff --git a/packages/data-connect/src/api/query.ts b/packages/data-connect/src/api/query.ts
index a4ab17b7ceb..00382686dab 100644
--- a/packages/data-connect/src/api/query.ts
+++ b/packages/data-connect/src/api/query.ts
@@ -67,7 +67,7 @@ export interface QueryResult<Data, Variables>
  * Promise returned from `executeQuery`
  */
 export interface QueryPromise<Data, Variables>
-  extends PromiseLike<QueryResult<Data, Variables>> {
+  extends Promise<QueryResult<Data, Variables>> {
   // reserved for special actions like cancellation
 }
 
@@ -124,7 +124,7 @@ export function queryRef<Data, Variables>(
     dataConnect: dcInstance,
     refType: QUERY_STR,
     name: queryName,
-    variables: variables as Variables
+    variables: variables
   };
 }
 /**
diff --git a/packages/data-connect/src/core/QueryManager.ts b/packages/data-connect/src/core/QueryManager.ts
index 8b7c59aea85..f20dfaa44e9 100644
--- a/packages/data-connect/src/core/QueryManager.ts
+++ b/packages/data-connect/src/core/QueryManager.ts
@@ -105,10 +105,9 @@ export class QueryManager {
       variables: queryRef.variables,
       refType: QUERY_STR
     });
-    const trackedQuery = this._queries.get(key) as TrackedQuery<
-      Data,
-      Variables
-    >;
+    const trackedQuery: TrackedQuery<Data, Variables> = this._queries.get(
+      key
+    ) as TrackedQuery<Data, Variables>;
     const subscription = {
       userCallback: onResultCallback,
       errCallback: onErrorCallback
diff --git a/packages/data-connect/src/network/fetch.ts b/packages/data-connect/src/network/fetch.ts
index 06ef6dd8285..d5d2a439432 100644
--- a/packages/data-connect/src/network/fetch.ts
+++ b/packages/data-connect/src/network/fetch.ts
@@ -30,9 +30,14 @@ function getGoogApiClientValue(_isUsingGen: boolean): string {
   }
   return str;
 }
+export interface DataConnectFetchBody<T> {
+  name: string;
+  operationName: string;
+  variables: T;
+}
 export function dcFetch<T, U>(
   url: string,
-  body: U,
+  body: DataConnectFetchBody<U>,
   { signal }: AbortController,
   appId: string | null,
   accessToken: string | null,
@@ -95,7 +100,7 @@ export function dcFetch<T, U>(
         logError('DataConnect error while performing request: ' + stringified);
         throw new DataConnectError(Code.OTHER, stringified);
       }
-      return res as { data: T; errors: Error[] };
+      return res;
     });
 }
 interface MessageObject {
diff --git a/packages/data-connect/src/network/transport/index.ts b/packages/data-connect/src/network/transport/index.ts
index 5518faa0f95..bd7ce604ac5 100644
--- a/packages/data-connect/src/network/transport/index.ts
+++ b/packages/data-connect/src/network/transport/index.ts
@@ -26,16 +26,16 @@ export interface DataConnectTransport {
   invokeQuery<T, U>(
     queryName: string,
     body?: U
-  ): PromiseLike<{ data: T; errors: Error[] }>;
+  ): Promise<{ data: T; errors: Error[] }>;
   invokeMutation<T, U>(
     queryName: string,
     body?: U
-  ): PromiseLike<{ data: T; errors: Error[] }>;
+  ): Promise<{ data: T; errors: Error[] }>;
   useEmulator(host: string, port?: number, sslEnabled?: boolean): void;
   onTokenChanged: (token: string | null) => void;
 }
 
-export interface CancellableOperation<T> extends PromiseLike<{ data: T }> {
+export interface CancellableOperation<T> extends Promise<{ data: T }> {
   cancel: () => void;
 }
 
diff --git a/packages/data-connect/src/network/transport/rest.ts b/packages/data-connect/src/network/transport/rest.ts
index 85847868c5d..0a49fc9e269 100644
--- a/packages/data-connect/src/network/transport/rest.ts
+++ b/packages/data-connect/src/network/transport/rest.ts
@@ -161,7 +161,7 @@ export class RESTTransport implements DataConnectTransport {
   invokeQuery: <T, U>(
     queryName: string,
     body?: U
-  ) => PromiseLike<{ data: T; errors: Error[] }> = <T, U = unknown>(
+  ) => Promise<{ data: T; errors: Error[] }> = <T, U = unknown>(
     queryName: string,
     body: U
   ) => {
@@ -174,7 +174,7 @@ export class RESTTransport implements DataConnectTransport {
           name: `projects/${this._project}/locations/${this._location}/services/${this._serviceName}/connectors/${this._connectorName}`,
           operationName: queryName,
           variables: body
-        } as unknown as U, // TODO(mtewani): This is a patch, fix this.
+        },
         abortController,
         this.appId,
         this._accessToken,
@@ -182,16 +182,12 @@ export class RESTTransport implements DataConnectTransport {
         this._isUsingGen
       )
     );
-
-    return {
-      then: withAuth.then.bind(withAuth),
-      catch: withAuth.catch.bind(withAuth)
-    };
+    return withAuth;
   };
   invokeMutation: <T, U>(
     queryName: string,
     body?: U
-  ) => PromiseLike<{ data: T; errors: Error[] }> = <T, U = unknown>(
+  ) => Promise<{ data: T; errors: Error[] }> = <T, U = unknown>(
     mutationName: string,
     body: U
   ) => {
@@ -203,7 +199,7 @@ export class RESTTransport implements DataConnectTransport {
           name: `projects/${this._project}/locations/${this._location}/services/${this._serviceName}/connectors/${this._connectorName}`,
           operationName: mutationName,
           variables: body
-        } as unknown as U,
+        },
         abortController,
         this.appId,
         this._accessToken,
@@ -211,12 +207,6 @@ export class RESTTransport implements DataConnectTransport {
         this._isUsingGen
       );
     });
-
-    return {
-      then: taskResult.then.bind(taskResult),
-      // catch: taskResult.catch.bind(taskResult),
-      // finally: taskResult.finally.bind(taskResult),
-      cancel: () => abortController.abort()
-    };
+    return taskResult;
   };
 }
diff --git a/packages/data-connect/test/unit/fetch.test.ts b/packages/data-connect/test/unit/fetch.test.ts
index a50ac188724..3d9a9b04523 100644
--- a/packages/data-connect/test/unit/fetch.test.ts
+++ b/packages/data-connect/test/unit/fetch.test.ts
@@ -42,7 +42,11 @@ describe('fetch', () => {
     await expect(
       dcFetch(
         'http://localhost',
-        {},
+        {
+          name: 'n',
+          operationName: 'n',
+          variables: {}
+        },
         {} as AbortController,
         null,
         null,
@@ -61,7 +65,11 @@ describe('fetch', () => {
     await expect(
       dcFetch(
         'http://localhost',
-        {},
+        {
+          name: 'n',
+          operationName: 'n',
+          variables: {}
+        },
         {} as AbortController,
         null,
         null,