Fixed Buffer deprecated warnings when using node >= v10

src/client.js

@@ -33,8 +33,8 @@ Object.freeze(streamPosition);
 function createJsonEventData(eventId, event, metadata, type) {
   if (!event || typeof event !== 'object') throw new TypeError("data must be an object.");
 
-  var eventBuf = new Buffer(JSON.stringify(event));
-  var metaBuf = metadata ? new Buffer(JSON.stringify(metadata)) : null;
+  var eventBuf = Buffer.from(JSON.stringify(event));
+  var metaBuf = metadata ? Buffer.from(JSON.stringify(metadata)) : null;
   return new EventData(eventId, type || event.constructor.name, true, eventBuf, metaBuf);
 }
 

src/common/guid-parse.js

@@ -14,14 +14,14 @@ function parse(s, buf, offset) {
   var ii = 0;
 
   if (buf) buf.fill(0, i, i + 16);
-  buf = buf || new Buffer(16);
+  buf = buf || Buffer.alloc(16);
   s.toLowerCase().replace(/[0-9a-f]{2}/g, function(oct) {
     if (ii < 16) { // Don't overflow!
       buf[i + ii++] = _hexToByte[oct];
     }
   });
 
-  var buf2 = new Buffer(buf.slice(i, i + 16));
+  var buf2 = Buffer.from(buf.slice(i, i + 16));
   buf[i + 0] = buf2[3];
   buf[i + 1] = buf2[2];
   buf[i + 2] = buf2[1];
@@ -44,4 +44,4 @@ function unparse(buf, offset) {
 }
 
 exports.parse = parse;
-exports.unparse = unparse;
+exports.unparse = unparse;

src/eventData.js

@@ -24,8 +24,8 @@ function EventData(eventId, type, isJson, data, metadata) {
   this.eventId = eventId;
   this.type = type;
   this.isJson = isJson || false;
-  this.data = data || new Buffer(0);
-  this.metadata = metadata || new Buffer(0);
+  this.data = data || Buffer.alloc(0);
+  this.metadata = metadata || Buffer.alloc(0);
   Object.freeze(this);
 }
 

src/eventStoreNodeConnection.js

@@ -650,7 +650,7 @@ EventStoreNodeConnection.prototype.setStreamMetadataRaw = function(
       if (err) return reject(err);
       resolve(result);
     }
-    var data = metadata ? new Buffer(JSON.stringify(metadata)) : null;
+    var data = metadata ? Buffer.from(JSON.stringify(metadata)) : null;
     var metaevent = new EventData(uuid.v4(), systemEventTypes.StreamMetadata, true, data, null);
     self._enqueueOperation(
         new AppendToStreamOperation(self._settings.log, cb, self._settings.requireMaster,
@@ -720,4 +720,4 @@ EventStoreNodeConnection.prototype._enqueueOperation = function(operation) {
   setImmediate(tryEnqueue)
 };
 
-module.exports = EventStoreNodeConnection;
+module.exports = EventStoreNodeConnection;

src/systemData/tcpPackage.js

@@ -50,12 +50,12 @@ TcpPackage.fromBufferSegment = function(data) {
 
 TcpPackage.prototype.asBuffer = function() {
   if ((this.flags & TcpFlags.Authenticated) !== 0) {
-    var loginBytes = new Buffer(this.login);
+    var loginBytes = Buffer.from(this.login);
     if (loginBytes.length > 255) throw new Error("Login serialized length should be less than 256 bytes.");
-    var passwordBytes = new Buffer(this.password);
+    var passwordBytes = Buffer.from(this.password);
     if (passwordBytes.length > 255) throw new Error("Password serialized length should be less than 256 bytes.");
 
-    var res = new Buffer(MandatorySize + 2 + loginBytes.length + passwordBytes.length + (this.data ? this.data.count : 0));
+    var res = Buffer.alloc(MandatorySize + 2 + loginBytes.length + passwordBytes.length + (this.data ? this.data.count : 0));
     res[CommandOffset] = this.command;
     res[FlagsOffset] = this.flags;
     guidParse.parse(this.correlationId, res, CorrelationOffset);
@@ -69,7 +69,7 @@ TcpPackage.prototype.asBuffer = function() {
 
     return res;
   } else {
-    var res = new Buffer(MandatorySize + (this.data ? this.data.count : 0));
+    var res = Buffer.alloc(MandatorySize + (this.data ? this.data.count : 0));
     res[CommandOffset] = this.command;
     res[FlagsOffset] = this.flags;
     guidParse.parse(this.correlationId, res, CorrelationOffset);
@@ -82,4 +82,4 @@ TcpPackage.prototype.asBufferSegment = function() {
   return createBufferSegment(this.asBuffer());
 };
 
-module.exports = TcpPackage;
+module.exports = TcpPackage;

src/transport/tcp/lengthPrefixMessageFramer.js

@@ -35,7 +35,7 @@ LengthPrefixMessageFramer.prototype._parse = function(bytes) {
           throw new Error(["Package size is out of bounds: ", this._packageLength, "(max: ", this._maxPackageSize, "."].join(''));
         }
 
-        this._messageBuffer = new Buffer(this._packageLength);
+        this._messageBuffer = Buffer.alloc(this._packageLength);
       }
     }
     else
@@ -58,7 +58,7 @@ LengthPrefixMessageFramer.prototype._parse = function(bytes) {
 
 LengthPrefixMessageFramer.prototype.frameData = function(data) {
   var length = data.count;
-  var lengthBuffer = new Buffer(HeaderLength);
+  var lengthBuffer = Buffer.alloc(HeaderLength);
   lengthBuffer.writeInt32LE(length, 0);
   return [
     createBufferSegment(lengthBuffer, 0, HeaderLength),
@@ -71,4 +71,4 @@ LengthPrefixMessageFramer.prototype.registerMessageArrivedCallback = function(ha
 };
 
 
-module.exports = LengthPrefixMessageFramer;
+module.exports = LengthPrefixMessageFramer;