diff --git a/generated/api_pb.d.ts b/generated/api_pb.d.ts
index b2a24ac..6e2daec 100644
--- a/generated/api_pb.d.ts
+++ b/generated/api_pb.d.ts
@@ -48,6 +48,28 @@ export namespace Request {
   }
 }
 
+export class Uids extends jspb.Message {
+  clearUidsList(): void;
+  getUidsList(): Array<string>;
+  setUidsList(value: Array<string>): void;
+  addUids(value: string, index?: number): string;
+
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): Uids.AsObject;
+  static toObject(includeInstance: boolean, msg: Uids): Uids.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: Uids, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): Uids;
+  static deserializeBinaryFromReader(message: Uids, reader: jspb.BinaryReader): Uids;
+}
+
+export namespace Uids {
+  export type AsObject = {
+    uidsList: Array<string>,
+  }
+}
+
 export class Response extends jspb.Message {
   getJson(): Uint8Array | string;
   getJson_asU8(): Uint8Array;
@@ -64,6 +86,11 @@ export class Response extends jspb.Message {
   getLatency(): Latency | undefined;
   setLatency(value?: Latency): void;
 
+  hasMetrics(): boolean;
+  clearMetrics(): void;
+  getMetrics(): Metrics | undefined;
+  setMetrics(value?: Metrics): void;
+
   getUidsMap(): jspb.Map<string, string>;
   clearUidsMap(): void;
   serializeBinary(): Uint8Array;
@@ -81,6 +108,7 @@ export namespace Response {
     json: Uint8Array | string,
     txn?: TxnContext.AsObject,
     latency?: Latency.AsObject,
+    metrics?: Metrics.AsObject,
     uidsMap: Array<[string, string]>,
   }
 }
@@ -302,6 +330,9 @@ export class Latency extends jspb.Message {
   getAssignTimestampNs(): number;
   setAssignTimestampNs(value: number): void;
 
+  getTotalNs(): number;
+  setTotalNs(value: number): void;
+
   serializeBinary(): Uint8Array;
   toObject(includeInstance?: boolean): Latency.AsObject;
   static toObject(includeInstance: boolean, msg: Latency): Latency.AsObject;
@@ -318,6 +349,26 @@ export namespace Latency {
     processingNs: number,
     encodingNs: number,
     assignTimestampNs: number,
+    totalNs: number,
+  }
+}
+
+export class Metrics extends jspb.Message {
+  getNumUidsMap(): jspb.Map<string, number>;
+  clearNumUidsMap(): void;
+  serializeBinary(): Uint8Array;
+  toObject(includeInstance?: boolean): Metrics.AsObject;
+  static toObject(includeInstance: boolean, msg: Metrics): Metrics.AsObject;
+  static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
+  static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
+  static serializeBinaryToWriter(message: Metrics, writer: jspb.BinaryWriter): void;
+  static deserializeBinary(bytes: Uint8Array): Metrics;
+  static deserializeBinaryFromReader(message: Metrics, reader: jspb.BinaryReader): Metrics;
+}
+
+export namespace Metrics {
+  export type AsObject = {
+    numUidsMap: Array<[string, number]>,
   }
 }
 
diff --git a/generated/api_pb.js b/generated/api_pb.js
index 7e52741..069252f 100644
--- a/generated/api_pb.js
+++ b/generated/api_pb.js
@@ -18,6 +18,7 @@ goog.exportSymbol('proto.api.Facet.ValType', null, global);
 goog.exportSymbol('proto.api.Jwt', null, global);
 goog.exportSymbol('proto.api.Latency', null, global);
 goog.exportSymbol('proto.api.LoginRequest', null, global);
+goog.exportSymbol('proto.api.Metrics', null, global);
 goog.exportSymbol('proto.api.Mutation', null, global);
 goog.exportSymbol('proto.api.NQuad', null, global);
 goog.exportSymbol('proto.api.Operation', null, global);
@@ -26,6 +27,7 @@ goog.exportSymbol('proto.api.Payload', null, global);
 goog.exportSymbol('proto.api.Request', null, global);
 goog.exportSymbol('proto.api.Response', null, global);
 goog.exportSymbol('proto.api.TxnContext', null, global);
+goog.exportSymbol('proto.api.Uids', null, global);
 goog.exportSymbol('proto.api.Value', null, global);
 goog.exportSymbol('proto.api.Value.ValCase', null, global);
 goog.exportSymbol('proto.api.Version', null, global);
@@ -50,6 +52,27 @@ if (goog.DEBUG && !COMPILED) {
    */
   proto.api.Request.displayName = 'proto.api.Request';
 }
+/**
+ * Generated by JsPbCodeGenerator.
+ * @param {Array=} opt_data Optional initial data array, typically from a
+ * server response, or constructed directly in Javascript. The array is used
+ * in place and becomes part of the constructed object. It is not cloned.
+ * If no data is provided, the constructed object will be empty, but still
+ * valid.
+ * @extends {jspb.Message}
+ * @constructor
+ */
+proto.api.Uids = function(opt_data) {
+  jspb.Message.initialize(this, opt_data, 0, -1, proto.api.Uids.repeatedFields_, null);
+};
+goog.inherits(proto.api.Uids, jspb.Message);
+if (goog.DEBUG && !COMPILED) {
+  /**
+   * @public
+   * @override
+   */
+  proto.api.Uids.displayName = 'proto.api.Uids';
+}
 /**
  * Generated by JsPbCodeGenerator.
  * @param {Array=} opt_data Optional initial data array, typically from a
@@ -218,6 +241,27 @@ if (goog.DEBUG && !COMPILED) {
    */
   proto.api.Latency.displayName = 'proto.api.Latency';
 }
+/**
+ * Generated by JsPbCodeGenerator.
+ * @param {Array=} opt_data Optional initial data array, typically from a
+ * server response, or constructed directly in Javascript. The array is used
+ * in place and becomes part of the constructed object. It is not cloned.
+ * If no data is provided, the constructed object will be empty, but still
+ * valid.
+ * @extends {jspb.Message}
+ * @constructor
+ */
+proto.api.Metrics = function(opt_data) {
+  jspb.Message.initialize(this, opt_data, 0, -1, null, null);
+};
+goog.inherits(proto.api.Metrics, jspb.Message);
+if (goog.DEBUG && !COMPILED) {
+  /**
+   * @public
+   * @override
+   */
+  proto.api.Metrics.displayName = 'proto.api.Metrics';
+}
 /**
  * Generated by JsPbCodeGenerator.
  * @param {Array=} opt_data Optional initial data array, typically from a
@@ -667,6 +711,162 @@ proto.api.Request.prototype.setCommitNow = function(value) {
 
 
 
+/**
+ * List of repeated fields within this message type.
+ * @private {!Array<number>}
+ * @const
+ */
+proto.api.Uids.repeatedFields_ = [1];
+
+
+
+if (jspb.Message.GENERATE_TO_OBJECT) {
+/**
+ * Creates an object representation of this proto.
+ * Field names that are reserved in JavaScript and will be renamed to pb_name.
+ * Optional fields that are not set will be set to undefined.
+ * To access a reserved field use, foo.pb_<name>, eg, foo.pb_default.
+ * For the list of reserved names please see:
+ *     net/proto2/compiler/js/internal/generator.cc#kKeyword.
+ * @param {boolean=} opt_includeInstance Deprecated. whether to include the
+ *     JSPB instance for transitional soy proto support:
+ *     http://goto/soy-param-migration
+ * @return {!Object}
+ */
+proto.api.Uids.prototype.toObject = function(opt_includeInstance) {
+  return proto.api.Uids.toObject(opt_includeInstance, this);
+};
+
+
+/**
+ * Static version of the {@see toObject} method.
+ * @param {boolean|undefined} includeInstance Deprecated. Whether to include
+ *     the JSPB instance for transitional soy proto support:
+ *     http://goto/soy-param-migration
+ * @param {!proto.api.Uids} msg The msg instance to transform.
+ * @return {!Object}
+ * @suppress {unusedLocalVariables} f is only used for nested messages
+ */
+proto.api.Uids.toObject = function(includeInstance, msg) {
+  var f, obj = {
+    uidsList: (f = jspb.Message.getRepeatedField(msg, 1)) == null ? undefined : f
+  };
+
+  if (includeInstance) {
+    obj.$jspbMessageInstance = msg;
+  }
+  return obj;
+};
+}
+
+
+/**
+ * Deserializes binary data (in protobuf wire format).
+ * @param {jspb.ByteSource} bytes The bytes to deserialize.
+ * @return {!proto.api.Uids}
+ */
+proto.api.Uids.deserializeBinary = function(bytes) {
+  var reader = new jspb.BinaryReader(bytes);
+  var msg = new proto.api.Uids;
+  return proto.api.Uids.deserializeBinaryFromReader(msg, reader);
+};
+
+
+/**
+ * Deserializes binary data (in protobuf wire format) from the
+ * given reader into the given message object.
+ * @param {!proto.api.Uids} msg The message object to deserialize into.
+ * @param {!jspb.BinaryReader} reader The BinaryReader to use.
+ * @return {!proto.api.Uids}
+ */
+proto.api.Uids.deserializeBinaryFromReader = function(msg, reader) {
+  while (reader.nextField()) {
+    if (reader.isEndGroup()) {
+      break;
+    }
+    var field = reader.getFieldNumber();
+    switch (field) {
+    case 1:
+      var value = /** @type {string} */ (reader.readString());
+      msg.addUids(value);
+      break;
+    default:
+      reader.skipField();
+      break;
+    }
+  }
+  return msg;
+};
+
+
+/**
+ * Serializes the message to binary data (in protobuf wire format).
+ * @return {!Uint8Array}
+ */
+proto.api.Uids.prototype.serializeBinary = function() {
+  var writer = new jspb.BinaryWriter();
+  proto.api.Uids.serializeBinaryToWriter(this, writer);
+  return writer.getResultBuffer();
+};
+
+
+/**
+ * Serializes the given message to binary data (in protobuf wire
+ * format), writing to the given BinaryWriter.
+ * @param {!proto.api.Uids} message
+ * @param {!jspb.BinaryWriter} writer
+ * @suppress {unusedLocalVariables} f is only used for nested messages
+ */
+proto.api.Uids.serializeBinaryToWriter = function(message, writer) {
+  var f = undefined;
+  f = message.getUidsList();
+  if (f.length > 0) {
+    writer.writeRepeatedString(
+      1,
+      f
+    );
+  }
+};
+
+
+/**
+ * repeated string uids = 1;
+ * @return {!Array<string>}
+ */
+proto.api.Uids.prototype.getUidsList = function() {
+  return /** @type {!Array<string>} */ (jspb.Message.getRepeatedField(this, 1));
+};
+
+
+/**
+ * @param {!Array<string>} value
+ * @return {!proto.api.Uids} returns this
+ */
+proto.api.Uids.prototype.setUidsList = function(value) {
+  return jspb.Message.setField(this, 1, value || []);
+};
+
+
+/**
+ * @param {string} value
+ * @param {number=} opt_index
+ * @return {!proto.api.Uids} returns this
+ */
+proto.api.Uids.prototype.addUids = function(value, opt_index) {
+  return jspb.Message.addToRepeatedField(this, 1, value, opt_index);
+};
+
+
+/**
+ * Clears the list making it empty but non-null.
+ * @return {!proto.api.Uids} returns this
+ */
+proto.api.Uids.prototype.clearUidsList = function() {
+  return this.setUidsList([]);
+};
+
+
+
 
 
 if (jspb.Message.GENERATE_TO_OBJECT) {
@@ -701,6 +901,7 @@ proto.api.Response.toObject = function(includeInstance, msg) {
     json: msg.getJson_asB64(),
     txn: (f = msg.getTxn()) && proto.api.TxnContext.toObject(includeInstance, f),
     latency: (f = msg.getLatency()) && proto.api.Latency.toObject(includeInstance, f),
+    metrics: (f = msg.getMetrics()) && proto.api.Metrics.toObject(includeInstance, f),
     uidsMap: (f = msg.getUidsMap()) ? f.toObject(includeInstance, undefined) : []
   };
 
@@ -752,6 +953,11 @@ proto.api.Response.deserializeBinaryFromReader = function(msg, reader) {
       reader.readMessage(value,proto.api.Latency.deserializeBinaryFromReader);
       msg.setLatency(value);
       break;
+    case 4:
+      var value = new proto.api.Metrics;
+      reader.readMessage(value,proto.api.Metrics.deserializeBinaryFromReader);
+      msg.setMetrics(value);
+      break;
     case 12:
       var value = msg.getUidsMap();
       reader.readMessage(value, function(message, reader) {
@@ -810,6 +1016,14 @@ proto.api.Response.serializeBinaryToWriter = function(message, writer) {
       proto.api.Latency.serializeBinaryToWriter
     );
   }
+  f = message.getMetrics();
+  if (f != null) {
+    writer.writeMessage(
+      4,
+      f,
+      proto.api.Metrics.serializeBinaryToWriter
+    );
+  }
   f = message.getUidsMap(true);
   if (f && f.getLength() > 0) {
     f.serializeBinary(12, writer, jspb.BinaryWriter.prototype.writeString, jspb.BinaryWriter.prototype.writeString);
@@ -933,6 +1147,43 @@ proto.api.Response.prototype.hasLatency = function() {
 };
 
 
+/**
+ * optional Metrics metrics = 4;
+ * @return {?proto.api.Metrics}
+ */
+proto.api.Response.prototype.getMetrics = function() {
+  return /** @type{?proto.api.Metrics} */ (
+    jspb.Message.getWrapperField(this, proto.api.Metrics, 4));
+};
+
+
+/**
+ * @param {?proto.api.Metrics|undefined} value
+ * @return {!proto.api.Response} returns this
+*/
+proto.api.Response.prototype.setMetrics = function(value) {
+  return jspb.Message.setWrapperField(this, 4, value);
+};
+
+
+/**
+ * Clears the message field making it undefined.
+ * @return {!proto.api.Response} returns this
+ */
+proto.api.Response.prototype.clearMetrics = function() {
+  return this.setMetrics(undefined);
+};
+
+
+/**
+ * Returns whether this field is set.
+ * @return {boolean}
+ */
+proto.api.Response.prototype.hasMetrics = function() {
+  return jspb.Message.getField(this, 4) != null;
+};
+
+
 /**
  * map<string, string> uids = 12;
  * @param {boolean=} opt_noLazyCreate Do not create the map if
@@ -2420,7 +2671,8 @@ proto.api.Latency.toObject = function(includeInstance, msg) {
     parsingNs: jspb.Message.getFieldWithDefault(msg, 1, 0),
     processingNs: jspb.Message.getFieldWithDefault(msg, 2, 0),
     encodingNs: jspb.Message.getFieldWithDefault(msg, 3, 0),
-    assignTimestampNs: jspb.Message.getFieldWithDefault(msg, 4, 0)
+    assignTimestampNs: jspb.Message.getFieldWithDefault(msg, 4, 0),
+    totalNs: jspb.Message.getFieldWithDefault(msg, 5, 0)
   };
 
   if (includeInstance) {
@@ -2473,6 +2725,10 @@ proto.api.Latency.deserializeBinaryFromReader = function(msg, reader) {
       var value = /** @type {number} */ (reader.readUint64());
       msg.setAssignTimestampNs(value);
       break;
+    case 5:
+      var value = /** @type {number} */ (reader.readUint64());
+      msg.setTotalNs(value);
+      break;
     default:
       reader.skipField();
       break;
@@ -2530,6 +2786,13 @@ proto.api.Latency.serializeBinaryToWriter = function(message, writer) {
       f
     );
   }
+  f = message.getTotalNs();
+  if (f !== 0) {
+    writer.writeUint64(
+      5,
+      f
+    );
+  }
 };
 
 
@@ -2605,6 +2868,157 @@ proto.api.Latency.prototype.setAssignTimestampNs = function(value) {
 };
 
 
+/**
+ * optional uint64 total_ns = 5;
+ * @return {number}
+ */
+proto.api.Latency.prototype.getTotalNs = function() {
+  return /** @type {number} */ (jspb.Message.getFieldWithDefault(this, 5, 0));
+};
+
+
+/**
+ * @param {number} value
+ * @return {!proto.api.Latency} returns this
+ */
+proto.api.Latency.prototype.setTotalNs = function(value) {
+  return jspb.Message.setProto3IntField(this, 5, value);
+};
+
+
+
+
+
+if (jspb.Message.GENERATE_TO_OBJECT) {
+/**
+ * Creates an object representation of this proto.
+ * Field names that are reserved in JavaScript and will be renamed to pb_name.
+ * Optional fields that are not set will be set to undefined.
+ * To access a reserved field use, foo.pb_<name>, eg, foo.pb_default.
+ * For the list of reserved names please see:
+ *     net/proto2/compiler/js/internal/generator.cc#kKeyword.
+ * @param {boolean=} opt_includeInstance Deprecated. whether to include the
+ *     JSPB instance for transitional soy proto support:
+ *     http://goto/soy-param-migration
+ * @return {!Object}
+ */
+proto.api.Metrics.prototype.toObject = function(opt_includeInstance) {
+  return proto.api.Metrics.toObject(opt_includeInstance, this);
+};
+
+
+/**
+ * Static version of the {@see toObject} method.
+ * @param {boolean|undefined} includeInstance Deprecated. Whether to include
+ *     the JSPB instance for transitional soy proto support:
+ *     http://goto/soy-param-migration
+ * @param {!proto.api.Metrics} msg The msg instance to transform.
+ * @return {!Object}
+ * @suppress {unusedLocalVariables} f is only used for nested messages
+ */
+proto.api.Metrics.toObject = function(includeInstance, msg) {
+  var f, obj = {
+    numUidsMap: (f = msg.getNumUidsMap()) ? f.toObject(includeInstance, undefined) : []
+  };
+
+  if (includeInstance) {
+    obj.$jspbMessageInstance = msg;
+  }
+  return obj;
+};
+}
+
+
+/**
+ * Deserializes binary data (in protobuf wire format).
+ * @param {jspb.ByteSource} bytes The bytes to deserialize.
+ * @return {!proto.api.Metrics}
+ */
+proto.api.Metrics.deserializeBinary = function(bytes) {
+  var reader = new jspb.BinaryReader(bytes);
+  var msg = new proto.api.Metrics;
+  return proto.api.Metrics.deserializeBinaryFromReader(msg, reader);
+};
+
+
+/**
+ * Deserializes binary data (in protobuf wire format) from the
+ * given reader into the given message object.
+ * @param {!proto.api.Metrics} msg The message object to deserialize into.
+ * @param {!jspb.BinaryReader} reader The BinaryReader to use.
+ * @return {!proto.api.Metrics}
+ */
+proto.api.Metrics.deserializeBinaryFromReader = function(msg, reader) {
+  while (reader.nextField()) {
+    if (reader.isEndGroup()) {
+      break;
+    }
+    var field = reader.getFieldNumber();
+    switch (field) {
+    case 1:
+      var value = msg.getNumUidsMap();
+      reader.readMessage(value, function(message, reader) {
+        jspb.Map.deserializeBinary(message, reader, jspb.BinaryReader.prototype.readString, jspb.BinaryReader.prototype.readUint64, null, "", 0);
+         });
+      break;
+    default:
+      reader.skipField();
+      break;
+    }
+  }
+  return msg;
+};
+
+
+/**
+ * Serializes the message to binary data (in protobuf wire format).
+ * @return {!Uint8Array}
+ */
+proto.api.Metrics.prototype.serializeBinary = function() {
+  var writer = new jspb.BinaryWriter();
+  proto.api.Metrics.serializeBinaryToWriter(this, writer);
+  return writer.getResultBuffer();
+};
+
+
+/**
+ * Serializes the given message to binary data (in protobuf wire
+ * format), writing to the given BinaryWriter.
+ * @param {!proto.api.Metrics} message
+ * @param {!jspb.BinaryWriter} writer
+ * @suppress {unusedLocalVariables} f is only used for nested messages
+ */
+proto.api.Metrics.serializeBinaryToWriter = function(message, writer) {
+  var f = undefined;
+  f = message.getNumUidsMap(true);
+  if (f && f.getLength() > 0) {
+    f.serializeBinary(1, writer, jspb.BinaryWriter.prototype.writeString, jspb.BinaryWriter.prototype.writeUint64);
+  }
+};
+
+
+/**
+ * map<string, uint64> num_uids = 1;
+ * @param {boolean=} opt_noLazyCreate Do not create the map if
+ * empty, instead returning `undefined`
+ * @return {!jspb.Map<string,number>}
+ */
+proto.api.Metrics.prototype.getNumUidsMap = function(opt_noLazyCreate) {
+  return /** @type {!jspb.Map<string,number>} */ (
+      jspb.Message.getMapField(this, 1, opt_noLazyCreate,
+      null));
+};
+
+
+/**
+ * Clears values from the map. The map will be non-null.
+ * @return {!proto.api.Metrics} returns this
+ */
+proto.api.Metrics.prototype.clearNumUidsMap = function() {
+  this.getNumUidsMap().clear();
+  return this;};
+
+
 
 /**
  * List of repeated fields within this message type.
diff --git a/protos/api.proto b/protos/api.proto
index 03f33ab..c04125b 100644
--- a/protos/api.proto
+++ b/protos/api.proto
@@ -23,6 +23,13 @@ syntax = "proto3";
 
 package api;
 
+/* import "gogoproto/gogo.proto"; */
+
+/* option (gogoproto.marshaler_all) = true; */
+/* option (gogoproto.sizer_all) = true; */
+/* option (gogoproto.unmarshaler_all) = true; */
+/* option (gogoproto.goproto_getters_all) = true; */
+
 option java_package = "io.dgraph";
 option java_outer_classname = "DgraphProto";
 
@@ -47,10 +54,18 @@ message Request {
 	bool commit_now = 13;
 }
 
+message Uids {
+	repeated string uids = 1;
+}
+
 message Response {
 	bytes json = 1;
 	TxnContext txn = 2;
 	Latency latency = 3;
+	// Metrics contains all metrics related to the query.
+	Metrics metrics = 4;
+	// uids contains a mapping of blank_node => uid for the node. It only returns uids
+	// that were created as part of a mutation.
 	map<string, string> uids = 12;
 }
 
@@ -112,6 +127,12 @@ message Latency {
 	uint64 processing_ns = 2;
 	uint64 encoding_ns = 3;
 	uint64 assign_timestamp_ns = 4;
+	uint64 total_ns = 5;
+}
+
+message Metrics {
+	// num_uids is the map of number of uids processed by each attribute.
+	map<string, uint64> num_uids = 1;
 }
 
 message NQuad {
diff --git a/tests/integration/doRequest.spec.ts b/tests/integration/doRequest.spec.ts
index cff99e9..13c9746 100644
--- a/tests/integration/doRequest.spec.ts
+++ b/tests/integration/doRequest.spec.ts
@@ -46,7 +46,7 @@ describe("doRequest", () => {
         expect(res.getJson()).toEqual({ me: [{ name: "ok 200" }, { name: "ok 300" }, { name: "ok 400" }] });
     });
 
-    it("fails with two mutations since multiple mutations are supported yet", async () => {
+    it("performs two mutations and then query finishes successfully", async () => {
         const client = await setup();
         await setSchema(client, `
             name: string @index(fulltext) .
@@ -60,10 +60,12 @@ describe("doRequest", () => {
         const req = new dgraph.Request();
         req.setMutationsList([mu1, mu2]);
         req.setCommitNow(true);
+        const resp = client.newTxn().doRequest(req);
+        await expect(resp).resolves.toBeDefined();
 
-        const res = client.newTxn().doRequest(req);
-        const ONLY_ONE_MUTATION_SUPPORTED = new Error(`${UNKNOWN_CODE}: Only 1 mutation per request is supported`);
-        await expect(res).rejects.toEqual(ONLY_ONE_MUTATION_SUPPORTED);
+        const query = `{ me(func: has(name), orderasc: name) { name }}`;
+        const res = await client.newTxn().query(query);
+        expect(res.getJson()).toEqual({ me: [{ name: "ok 200" }, { name: "ok 300" }] });
     });
 
     it("fails with zero mutations since either a mutation or a query is required", async () => {