diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..96dbe0b
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,22 @@
+name: Build
+
+on:
+  pull_request:
+    branches: [main, feat/*]
+    types: [opened, ready_for_review]
+  push:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.17.6
+
+      - name: Build
+        run: go build -v ./...
diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
new file mode 100644
index 0000000..acd35f4
--- /dev/null
+++ b/.github/workflows/linter.yml
@@ -0,0 +1,34 @@
+name: Go linter
+on:
+  pull_request:
+    branches: [main, feat/*]
+    types: [opened, ready_for_review]
+  push:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  golangci:
+    name: golangci linter
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-go@v3
+        with:
+          go-version: 1.17.6
+      - uses: actions/checkout@v3
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.45.2
+
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+
+          # Optional: golangci-lint command line arguments.
+          args: --timeout 10m0s --max-issues-per-linter 0 --max-same-issues 0 --print-issued-lines
+
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          only-new-issues: true
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..9f2c8ef
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,25 @@
+name: Test
+
+on:
+  pull_request:
+    branches: [main, feat/*]
+    types: [opened, ready_for_review]
+  push:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.17.6
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Test
+        run: go test -v -race ./...
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3b735ec
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,21 @@
+# If you prefer the allow list template instead of the deny list, see community template:
+# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
+#
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
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+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
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+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
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+giving you legal permission to copy, distribute and/or modify it.
+
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+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
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+States should not allow patents to restrict development and use of
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+
+  The precise terms and conditions for copying, distribution and
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+
+                       TERMS AND CONDITIONS
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+  "This License" refers to version 3 of the GNU General Public License.
+
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+on the Program.
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+permission, would make you directly or secondarily liable for
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+public, and in some countries other activities as well.
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+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
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+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
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+  The "source code" for a work means the preferred form of the work
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+
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+same work.
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+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
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+covered work is covered by this License only if the output, given its
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+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
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+
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+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
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+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
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+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
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+and you may offer support or warranty protection for a fee.
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+terms of section 4, provided that you also meet all of these conditions:
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+
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+    License to anyone who comes into possession of a copy.  This
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+
+  "Additional permissions" are terms that supplement the terms of this
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+Additional permissions that are applicable to the entire Program shall
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+  All other non-permissive additional terms are considered "further
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+received it, or any part of it, contains a notice stating that it is
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+
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+holder fails to notify you of the violation by some reasonable means
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+your receipt of the notice.
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+licenses of parties who have received copies or rights from you under
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+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
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+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
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+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
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+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
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+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
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+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
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+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
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+patent license under the contributor's essential patent claims, to
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+available, or (2) arrange to deprive yourself of the benefit of the
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+
+  A patent license is "discriminatory" if it does not include within
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+
+  Nothing in this License shall be construed as excluding or limiting
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+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
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+excuse you from the conditions of this License.  If you cannot convey a
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+
+  13. Use with the GNU Affero General Public License.
+
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+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
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+Foundation.  If the Program does not specify a version number of the
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+  If the Program specifies that a proxy can decide which future
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+
+  Later license versions may give you additional or different
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+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
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+
+  If the program does terminal interaction, make it output a short
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+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..b719294
--- /dev/null
+++ b/README.md
@@ -0,0 +1,143 @@
+# mx-chain-ws-connector-template-go
+
+## Introduction
+
+In today's rapidly evolving blockchain ecosystem, the demand for real-time access to exported data from blockchain nodes
+has significantly increased. To meet this growing need within our expanding system, we have developed the Outport
+Driver, a powerful websocket connection system specifically designed for the MultiversX blockchain.
+
+The Outport Driver acts as a crucial bridge between the MultiversX blockchain node and various services that rely on
+receiving up-to-date data from the node. By establishing a websocket connection, the Outport Driver enables seamless
+transmission of essential information, including blocks, validator details, account changes, and other processing
+results.
+
+One of the key features of the MultiversX blockchain node is its flexible configuration file. By simply setting a flag
+to "true" within this file, the node can initiate the delivery of data via a websocket connection to any connected
+websocket client. This capability provides a reliable and efficient method for receiving live updates from the
+MultiversX blockchain.
+
+To simplify the process of setting up your own data receiver from the MultiversX blockchain node, we have created this
+repository as a comprehensive template. It serves as a valuable resource, guiding you through the necessary steps to
+establish a successful connection with the MultiversX blockchain node and receive the exported data effortlessly.
+
+Whether you are building a decentralized application, monitoring the blockchain network, or conducting in-depth data
+analysis, this template repository equips you with the foundation to swiftly integrate and leverage the exported data
+from the MultiversX blockchain node.
+
+Begin your journey towards seamless data integration and take advantage of the Outport Driver's robust websocket
+connector by exploring the contents of this repository. We look forward to witnessing the innovative applications and
+services that will emerge as a result of this collaborative ecosystem.
+
+_Note: The Outport Driver is an open-source project, and we encourage active contributions and feedback from the
+community to further enhance its capabilities and compatibility with different blockchain networks._
+
+## How to use
+
+### Use cases
+
+The Outport Driver operates on a robust websocket connection architecture, supporting both server and client roles. The
+system is designed to seamlessly export data from the MultiversX blockchain node, which adopts a sharded architecture
+where each shard represents a separate running chain, interconnected by the meta chain.
+
+To export data from a specific shard, you need to enable an observer node within that shard to export data. One can do
+that
+by enabling the **[HostDriverConfig].Enabled** flag to true
+[from this config file](https://github.com/MultiversX/mx-chain-go/blob/master/cmd/node/config/external.toml)
+
+In our case of a network consisting of three shards and a metachain, you would require four separate websocket receiver
+binaries, each responsible for receiving data from its respective shard. This distributed approach ensures data
+integrity and allows for shard-specific data processing.
+
+However, the websocket connection in the Outport Driver is highly flexible and parameterizable. By customizing the
+configuration, you can configure the observer nodes to function as clients and the driver (this template binary) as a
+server. This configuration reduces the number of driver receiver binaries to just one, acting as a server that receives
+data from each observer, from each shard. To set your receiver as a server, you need set **mode**
+from `cmd/connector/config/config.toml` to **"server"**.
+
+Alternatively, you have the option to set up the observer node as a server capable of handling multiple clients. This
+setup proves advantageous when multiple services within your ecosystem need to receive exported data. For instance, a
+single node could export data to various services, such as an elastic indexer, a monitoring tool, a notifier, or other
+implementations.
+
+By tailoring the configuration of the observer nodes and the driver (this template binary) to suit your specific
+requirements, you can effectively streamline and centralize the reception of data from the MultiversX blockchain node.
+This flexibility empowers you to design a data distribution strategy that aligns with your ecosystem's needs while
+ensuring efficient and reliable data transmission.
+
+### Illustration
+
+1. In this scenario, each observer node acts as a server, sending data to one or more receivers. The receivers act as a
+   client and receive data from each observer node and processes it accordingly.
+
+```
+        +----------------+   +-------------------+
+        |   Observer 1   |-->|     Receiver 1    |
+        |                |   +-------------------+
+        |                |
+        |                |   +-------------------+
+        |                |-->|     Receiver 2    |
+        +----------------+   +-------------------+
+        
+        +----------------+   +-------------------+
+        |   Observer 2   |-->|     Receiver 3    |
+        +----------------+   +-------------------+
+        
+        +----------------+   +-------------------+
+        |   Observer 3   |-->|     Receiver 4    |
+        +----------------+   +-------------------+                                                 
+```
+
+2. In this scenario, the observer nodes act as clients, while a single receiver collects data from all of them. The
+   receiver acts as the server, receiving data from each observer node.
+
+```
+        +----------------+   +-------------------+
+        |   Observer 1   |-->|                   |
+        +----------------+   |                   |
+                             |                   |
+        +----------------+   |                   |
+        |   Observer 2   |-->|      Receiver     |
+        +----------------+   |                   |
+                             |                   |
+        +----------------+   |                   |
+        |   Observer 3   |-->|                   |
+        +----------------+   |                   |
+                             |                   |
+        +----------------+   |                   |
+        |    Receiver    |-->|                   |
+        +----------------+   +-------------------+
+```
+
+### Start building
+
+Once you have an observer node running and configured to export data (either server or client) you can test your
+receiver.
+
+1. Start by navigating to the `cmd/connector` directory in your terminal or file explorer. This is where you'll find
+   the `main.go` file.
+
+2. Build the binary by running the `go build` command. This will compile the code and create the `connector` binary
+   executable.
+
+3. After building, you can start the `connector` binary by executing the generated executable file. This will launch the
+   websocket data receiver.
+
+4. In the `cmd/connector/config/config.toml` file, you can configure the settings for your receiver. Adjust the
+   necessary parameters such as the url, port, or any other relevant options.
+
+5. The provided code is a dummy implementation that logs events upon receiving data from the blockchain node. To
+   customize the actions taken when receiving exported data, you need to define your own logic in the `process` package.
+
+6. In the `process` package, there is a `logDataProcessor.go`. This processor is capable of handling data from the
+   websocket outport driver and logging events.
+
+7. One can see that `operationHandlers` defines a map of actions and their handler functions for the received payload.
+   All you need to do is to replace the dummy code (which only logs events) with your specific use case on how to handle
+   received data  (`saveBlock`, `revertIndexedBlock`, etc.). Modify the logic according to your requirements,
+   such as saving to a database, triggering other processes, or performing any necessary data transformations.
+
+8. Once you have customized the code to handle the received data as desired, you can build and run the `connector`
+   binary again to see your changes in action.
+
+_If you want to test the ws receiver within a local setup testnet environment, you can use the provided demo
+within `cmd/demo` directory._
\ No newline at end of file
diff --git a/cmd/connector/config/config.toml b/cmd/connector/config/config.toml
new file mode 100644
index 0000000..6c50162
--- /dev/null
+++ b/cmd/connector/config/config.toml
@@ -0,0 +1,15 @@
+[web_socket]
+    # IP with port used to recieve data via ws. Should be compatible with the one from node. See [HostDriverConfig].URL
+    # from https://github.com/multiversx/mx-chain-go/blob/master/cmd/node/config/external.toml.
+    url = "localhost:22111"
+    # Possible values: json, gogo protobuf. Should be compatible with [HostDriverConfig].MarshallerType
+    marshaller_type = "json"
+    # This flag describes the mode to start the WebSocket connector. Can be "client" or "server"
+    mode = "client"
+    # Retry duration (receive/send data/acknowledge) in seconds
+    retry_duration = 5
+    # This flag specifies if we should send an acknowledge signal upon recieving data
+    with_acknowledge = true
+    # Signals if in case of data payload processing error, we should send the ack signal or not. If you want to block
+    # incoming data in case of a local error, this should be set to true.
+    blocking_ack_on_error = false
diff --git a/cmd/connector/flags.go b/cmd/connector/flags.go
new file mode 100644
index 0000000..071c804
--- /dev/null
+++ b/cmd/connector/flags.go
@@ -0,0 +1,25 @@
+package main
+
+import (
+	logger "github.com/multiversx/mx-chain-logger-go"
+	"github.com/urfave/cli"
+)
+
+var (
+	logLevel = cli.StringFlag{
+		Name: "log-level",
+		Usage: "This flag specifies the logger `level(s)`. It can contain multiple comma-separated value. For example" +
+			", if set to *:INFO the logs for all packages will have the INFO level. However, if set to *:INFO,api:DEBUG" +
+			" the logs for all packages will have the INFO level, excepting the api package which will receive a DEBUG" +
+			" log level.",
+		Value: "*:" + logger.LogDebug.String(),
+	}
+	logSaveFile = cli.BoolFlag{
+		Name:  "log-save",
+		Usage: "Boolean option for enabling log saving. If set, it will automatically save all the logs into a file.",
+	}
+	disableAnsiColor = cli.BoolFlag{
+		Name:  "disable-ansi-color",
+		Usage: "Boolean option for disabling ANSI colors in the logging system.",
+	}
+)
diff --git a/cmd/connector/main.go b/cmd/connector/main.go
new file mode 100644
index 0000000..6b2268b
--- /dev/null
+++ b/cmd/connector/main.go
@@ -0,0 +1,155 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/multiversx/mx-chain-core-go/core"
+	"github.com/multiversx/mx-chain-core-go/core/closing"
+	logger "github.com/multiversx/mx-chain-logger-go"
+	"github.com/multiversx/mx-chain-logger-go/file"
+	"github.com/multiversx/mx-chain-ws-connector-template-go/config"
+	"github.com/multiversx/mx-chain-ws-connector-template-go/factory"
+	"github.com/urfave/cli"
+)
+
+var log = logger.GetOrCreate("mx-chain-ws-connector-template-go")
+
+const (
+	configPath = "config/config.toml"
+
+	logsPath       = "logs"
+	logFilePrefix  = "sovereign-notifier"
+	logLifeSpanSec = 432000 // 5 days
+	logLifeSpanMb  = 1024   // 1 GB
+)
+
+func main() {
+	app := cli.NewApp()
+	app.Name = "MultiversX ws connector template"
+	app.Usage = "This tool will communicate with an observer/light client connected to mx-chain via " +
+		"websocket outport driver and listen to incoming exported data."
+	app.Flags = []cli.Flag{
+		logLevel,
+		logSaveFile,
+		disableAnsiColor,
+	}
+	app.Authors = []cli.Author{
+		{
+			Name:  "The MultiversX Team",
+			Email: "contact@multiversx.com",
+		},
+	}
+
+	app.Action = startConnector
+
+	err := app.Run(os.Args)
+	if err != nil {
+		log.Error(err.Error())
+		os.Exit(1)
+	}
+}
+
+func startConnector(ctx *cli.Context) error {
+	cfg, err := loadConfig(configPath)
+	if err != nil {
+		return err
+	}
+
+	err = initializeLogger(ctx)
+	if err != nil {
+		return err
+	}
+
+	var logFile closing.Closer
+	withLogFile := ctx.GlobalBool(logSaveFile.Name)
+	if withLogFile {
+		logFile, err = createLogger()
+		if err != nil {
+			return err
+		}
+	}
+
+	wsClient, err := factory.CreateWSConnector(cfg.WebSocketConfig)
+	if err != nil {
+		return fmt.Errorf("cannot create sovereign notifier, error: %w", err)
+	}
+
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, syscall.SIGINT, syscall.SIGTERM)
+
+	log.Info("starting ws client...")
+
+	<-interrupt
+	log.Info("closing app at user's signal")
+
+	err = wsClient.Close()
+	log.LogIfError(err)
+
+	if withLogFile {
+		err = logFile.Close()
+		log.LogIfError(err)
+	}
+	return nil
+}
+
+func loadConfig(filepath string) (config.Config, error) {
+	cfg := config.Config{}
+	err := core.LoadTomlFile(&cfg, filepath)
+
+	log.Info("loaded config", "path", configPath)
+
+	return cfg, err
+}
+
+func initializeLogger(ctx *cli.Context) error {
+	logLevelFlagValue := ctx.GlobalString(logLevel.Name)
+	err := logger.SetLogLevel(logLevelFlagValue)
+	if err != nil {
+		return err
+	}
+
+	disableAnsi := ctx.GlobalBool(disableAnsiColor.Name)
+	return removeANSIColorsForLoggerIfNeeded(disableAnsi)
+}
+
+func removeANSIColorsForLoggerIfNeeded(disableAnsi bool) error {
+	if !disableAnsi {
+		return nil
+	}
+
+	err := logger.RemoveLogObserver(os.Stdout)
+	if err != nil {
+		return err
+	}
+
+	return logger.AddLogObserver(os.Stdout, &logger.PlainFormatter{})
+}
+
+func createLogger() (closing.Closer, error) {
+	workingDir, err := os.Getwd()
+	if err != nil {
+		log.Error("error getting working directory when trying to create logger file", "error", err)
+		workingDir = ""
+	}
+
+	argsLogger := file.ArgsFileLogging{
+		WorkingDir:      workingDir,
+		DefaultLogsPath: logsPath,
+		LogFilePrefix:   logFilePrefix,
+	}
+	fileLogging, err := file.NewFileLogging(argsLogger)
+	if err != nil {
+		return nil, fmt.Errorf("%w creating log file", err)
+	}
+
+	err = fileLogging.ChangeFileLifeSpan(time.Second*time.Duration(logLifeSpanSec), logLifeSpanMb)
+	if err != nil {
+		return nil, err
+	}
+
+	return fileLogging, nil
+}
diff --git a/cmd/demo/README.md b/cmd/demo/README.md
new file mode 100644
index 0000000..2bddeb8
--- /dev/null
+++ b/cmd/demo/README.md
@@ -0,0 +1,62 @@
+## About
+
+This folder contains system test demo for the ws connector, which is going to receive exported data from a local testnet
+
+### How it works
+
+These scripts provide a demo to help you configure and test your ws connector/driver to receive data from a local
+testnet. The scripts found in this `demo` folder:
+
+- `local-testnet.sh` creates a local testnet with one shard (0) + metachain. Each shard has 2 nodes (1 validator + 1
+  observer)
+- `observer-outport.sh` creates an observer in a specified shard (shard/metachain). This node acts an outport driver for
+  the ws connector. When started, it will sync from genesis and export data (blocks, validators info, etc.) to your ws
+  driver connector.
+
+Inside `cmd/connector` folder, there is a `main.go` file which represents the ws connector (data receiver).
+
+> **TIP**: Once you have experimented with this local setup, you might want to test the driver with exported data from
+> an observing squad (mainnet/devnet/testnet). [Here](https://github.com/multiversx/mx-chain-observing-squad) you can
+> find how to run your own observing squad. In order to enable nodes to export data, one needs to set
+> **[HostDriverConfig].Enabled = true**
+> [from this config file](https://github.com/multiversx/mx-chain-go/blob/master/cmd/node/config/external.toml)
+
+## How to use
+
+1. Create and start a local testnet:
+
+```bash
+cd cmd/demo
+bash ./local-testnet.sh new
+bash ./local-testnet.sh start
+```
+
+2. Start the exporter node in your desired shard (metachain/shard):
+
+```bash
+bash ./observer-outport.sh shard
+```
+
+3. Inside `cmd/connector`, start your driver to receive exported data:
+
+```bash
+go build
+./connector
+```
+
+Once the setup is ready, the connected driver will start receiving data from the observer. One can see a similar log
+info:
+
+```
+INFO [2023-05-24 13:53:49.234]   received payload                         topic = SaveBlock hash = de0d84d2e88f83916cfa955121938c952ceab657cd49852cac51f7f5c7c0091a 
+INFO [2023-05-24 13:53:49.234]   received payload                         topic = SaveRoundsInfo 
+INFO [2023-05-24 13:53:49.240]   received payload                         topic = FinalizedBlock 
+ 
+```
+
+After you finished testing, you can close the observer node and ws connector (can use CTRL+C) as well as the local
+testnet, by executing:
+
+```bash
+bash ./local-testnet.sh stop
+```
\ No newline at end of file
diff --git a/cmd/demo/local-testnet.sh b/cmd/demo/local-testnet.sh
new file mode 100644
index 0000000..1b724d7
--- /dev/null
+++ b/cmd/demo/local-testnet.sh
@@ -0,0 +1,119 @@
+CURRENT_DIR=$(pwd)
+WORKING_DIR="$CURRENT_DIR"
+TESTNET_DIR=$WORKING_DIR/testnet
+TESTNET_OUTPUT_DIR=$TESTNET_DIR/testnet-local
+SCRIPTS_DIR=mx-chain-go/scripts/testnet
+VARIABLES_PATH=$SCRIPTS_DIR/variables.sh
+OBSERVERS_PATH=$SCRIPTS_DIR/include/observers.sh
+VALIDATORS_PATH=$SCRIPTS_DIR/include/validators.sh
+ENABLE_EPOCH_DIR=$TESTNET_DIR/mx-chain-go/cmd/node/config/enableEpochs.toml
+SANDBOX_NAME=sandbox
+
+cloneDependencies(){
+  if [ -d "$TESTNET_DIR" ]; then
+    rm -rf $TESTNET_DIR
+  fi
+
+  mkdir "$TESTNET_DIR"
+
+  git clone https://github.com/multiversx/mx-chain-go "$TESTNET_DIR/mx-chain-go"
+  checkoutStableVersion mx-chain-go cc39c2460f69e9db3e7970519f8474c8abbc294f
+
+  git clone https://github.com/multiversx/mx-chain-deploy-go "$TESTNET_DIR/mx-chain-deploy-go"
+
+  git clone https://github.com/multiversx/mx-chain-proxy-go "$TESTNET_DIR/mx-chain-proxy-go"
+  checkoutStableVersion mx-chain-proxy-go rc/v1.6.0
+}
+
+checkoutStableVersion(){
+    cd $TESTNET_DIR/$1
+    git checkout $2
+    cd ../..
+}
+
+testnetRemove(){
+  rm -rf "$TESTNET_OUTPUT_DIR"
+}
+
+testnetSetup(){
+  sed -i 's/BuiltInFunctionsEnableEpoch =.*/BuiltInFunctionsEnableEpoch = 0/' "$ENABLE_EPOCH_DIR"
+
+  mkdir "$TESTNET_OUTPUT_DIR"
+  cd "$TESTNET_OUTPUT_DIR"
+  ln -s "$TESTNET_DIR"/mx-chain-go mx-chain-go
+  ln -s "$TESTNET_DIR"/mx-chain-deploy-go mx-chain-deploy-go
+  ln -s "$TESTNET_DIR"/mx-chain-proxy-go mx-chain-proxy-go
+}
+
+testnetPrereq(){
+  cd "$TESTNET_OUTPUT_DIR" && \
+    bash $SCRIPTS_DIR/prerequisites.sh && \
+    echo -e "export TESTNETDIR=$TESTNET_OUTPUT_DIR/$SANDBOX_NAME" > $SCRIPTS_DIR/local.sh && \
+    bash $SCRIPTS_DIR/config.sh
+}
+
+testnetUpdateVariables(){
+  sed -i 's/export SHARDCOUNT=.*/export SHARDCOUNT=1/' $VARIABLES_PATH
+  sed -i 's/SHARD_VALIDATORCOUNT=.*/SHARD_VALIDATORCOUNT=1/' $VARIABLES_PATH
+  sed -i 's/SHARD_OBSERVERCOUNT=.*/SHARD_OBSERVERCOUNT=1/' $VARIABLES_PATH
+  sed -i 's/SHARD_CONSENSUS_SIZE=.*/SHARD_CONSENSUS_SIZE=$SHARD_VALIDATORCOUNT/' $VARIABLES_PATH
+  sed -i 's/META_VALIDATORCOUNT=.*/META_VALIDATORCOUNT=1/' $VARIABLES_PATH
+  sed -i 's/META_OBSERVERCOUNT=.*/META_OBSERVERCOUNT=1/' $VARIABLES_PATH
+  sed -i 's/META_CONSENSUS_SIZE=.*/META_CONSENSUS_SIZE=$META_VALIDATORCOUNT/' $VARIABLES_PATH
+  sed -i 's/export NODE_DELAY=.*/export NODE_DELAY=30/' $VARIABLES_PATH
+
+  sed -i 's/EXTRA_OBSERVERS_FLAGS.*/EXTRA_OBSERVERS_FLAGS --operation-mode db-lookup-extension"/' $OBSERVERS_PATH
+  sed -i 's/config_validator.toml/config_validator.toml --operation-mode db-lookup-extension/' $VALIDATORS_PATH
+}
+
+testnetNew(){
+  cloneDependencies
+  testnetRemove
+  testnetSetup
+  testnetUpdateVariables
+  testnetPrereq
+}
+
+testnetStart(){
+  cd "$TESTNET_DIR" && \
+    ./mx-chain-go/scripts/testnet/start.sh
+}
+
+testnetReset(){
+  cd "$TESTNET_DIR" && \
+    ./mx-chain-go/scripts/testnet/reset.sh
+}
+
+testnetStop(){
+  cd "$TESTNET_DIR" && \
+    ./mx-chain-go/scripts/testnet/stop.sh
+}
+
+echoOptions(){
+  echo "ERROR!!! Please choose one of the following parameters:
+  - new to create a new testnet
+  - start to start the testnet
+  - reset to reset the testnet
+  - stop to stop the testnet"
+}
+
+main(){
+  if [ $# -eq 1 ]; then
+    case "$1" in
+      new)
+        testnetNew ;;
+      start)
+        testnetStart ;;
+      reset)
+        testnetReset ;;
+      stop)
+        testnetStop ;;
+      *)
+        echoOptions ;;
+      esac
+  else
+    echoOptions
+  fi
+}
+
+main "$@"
diff --git a/cmd/demo/observer-outport.sh b/cmd/demo/observer-outport.sh
new file mode 100644
index 0000000..e27cb5f
--- /dev/null
+++ b/cmd/demo/observer-outport.sh
@@ -0,0 +1,71 @@
+#!/usr/bin/env bash
+
+# Possible values: "server"/"client"
+OBSERVER_MODE="server"
+
+CURRENT_DIR=$(pwd)
+SANDBOX_PATH=$CURRENT_DIR/testnet/testnet-local/sandbox
+KEY_GENERATOR_PATH=$CURRENT_DIR/testnet/mx-chain-go/cmd/keygenerator
+EXTERNAL_CONFIG_DIR=$CURRENT_DIR/exporter/config/external.toml
+
+createObserverKey(){
+  pushd $CURRENT_DIR
+
+  cd testnet/mx-chain-go/cmd/keygenerator
+  go build
+  ./keygenerator
+
+  popd
+}
+
+resetWorkingDir(){
+  rm -rf exporter
+  mkdir "exporter/"
+  cd "exporter/"
+  mkdir "config/"
+}
+
+setupObserver(){
+  OBSERVER_PATH=$(pwd)
+  cp $SANDBOX_PATH/node/node $OBSERVER_PATH
+  cp -R $SANDBOX_PATH/node/config $OBSERVER_PATH
+  mv config/config_observer.toml config/config.toml
+  mv $KEY_GENERATOR_PATH/validatorKey.pem config/
+
+  sed -i "s@DestinationShardAsObserver =.*@DestinationShardAsObserver = \"$1\"@" $OBSERVER_PATH/config/prefs.toml
+  sed -i '/HostDriverConfig\]/!b;n;n;c\    Enabled = true' "$EXTERNAL_CONFIG_DIR"
+  sed -i "s@Mode =.*@Mode = \"$OBSERVER_MODE\"@" "$EXTERNAL_CONFIG_DIR"
+  sed -i 's/MarshallerType =.*/MarshallerType = "json"/' "$EXTERNAL_CONFIG_DIR"
+  sed -i 's/BlockingAckOnError =.*/BlockingAckOnError = false/' "$EXTERNAL_CONFIG_DIR"
+
+  ./node --log-level *:INFO --rest-api-interface :10044
+}
+
+
+setup(){
+  createObserverKey
+  resetWorkingDir
+  setupObserver $1
+}
+
+echoOptions(){
+  echo "This script will start an observer node in the provided shard (metachain/shard).
+  The only acceptable parameters, for the current test configuration, are shard (will use shard 0) and metachain."
+}
+
+main(){
+    if [ $# -eq 1 ]; then
+      case "$1" in
+        metachain)
+          setup metachain;;
+        shard)
+          setup 0;;
+        *)
+          echoOptions;;
+        esac
+    else
+      echoOptions
+    fi
+}
+
+main "$@"
diff --git a/config/config.go b/config/config.go
new file mode 100644
index 0000000..dd7ee03
--- /dev/null
+++ b/config/config.go
@@ -0,0 +1,16 @@
+package config
+
+// Config holds general configuration
+type Config struct {
+	WebSocketConfig WebSocketConfig `toml:"web_socket"`
+}
+
+// WebSocketConfig holds web sockets config
+type WebSocketConfig struct {
+	Url                string `toml:"url"`
+	MarshallerType     string `toml:"marshaller_type"`
+	Mode               string `toml:"mode"`
+	RetryDuration      uint32 `toml:"retry_duration"`
+	WithAcknowledge    bool   `toml:"with_acknowledge"`
+	BlockingAckOnError bool   `toml:"blocking_ack_on_error"`
+}
diff --git a/factory/wsConnectorFactory.go b/factory/wsConnectorFactory.go
new file mode 100644
index 0000000..a00f5fe
--- /dev/null
+++ b/factory/wsConnectorFactory.go
@@ -0,0 +1,54 @@
+package factory
+
+import (
+	"github.com/multiversx/mx-chain-communication-go/websocket/data"
+	factoryHost "github.com/multiversx/mx-chain-communication-go/websocket/factory"
+	"github.com/multiversx/mx-chain-core-go/marshal"
+	"github.com/multiversx/mx-chain-core-go/marshal/factory"
+	logger "github.com/multiversx/mx-chain-logger-go"
+	"github.com/multiversx/mx-chain-ws-connector-template-go/config"
+	"github.com/multiversx/mx-chain-ws-connector-template-go/process"
+)
+
+var log = logger.GetOrCreate("ws-connector")
+
+// CreateWSConnector will create a ws connector able to receive and process incoming data
+// from a multiversx node
+func CreateWSConnector(cfg config.WebSocketConfig) (process.WSConnector, error) {
+	marshaller, err := factory.NewMarshalizer(cfg.MarshallerType)
+	if err != nil {
+		return nil, err
+	}
+
+	dataProcessor, err := process.NewLogDataProcessor(marshaller, log)
+	if err != nil {
+		return nil, err
+	}
+
+	wsHost, err := createWsHost(marshaller, cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	err = wsHost.SetPayloadHandler(dataProcessor)
+	if err != nil {
+		return nil, err
+	}
+
+	return wsHost, nil
+}
+
+func createWsHost(wsMarshaller marshal.Marshalizer, cfg config.WebSocketConfig) (factoryHost.FullDuplexHost, error) {
+	return factoryHost.CreateWebSocketHost(factoryHost.ArgsWebSocketHost{
+		WebSocketConfig: data.WebSocketConfig{
+			URL:                        cfg.Url,
+			WithAcknowledge:            cfg.WithAcknowledge,
+			Mode:                       cfg.Mode,
+			RetryDurationInSec:         int(cfg.RetryDuration),
+			BlockingAckOnError:         cfg.BlockingAckOnError,
+			DropMessagesIfNoConnection: false,
+		},
+		Marshaller: wsMarshaller,
+		Log:        log,
+	})
+}
diff --git a/factory/wsConnectorFactory_test.go b/factory/wsConnectorFactory_test.go
new file mode 100644
index 0000000..90e3e47
--- /dev/null
+++ b/factory/wsConnectorFactory_test.go
@@ -0,0 +1,55 @@
+package factory
+
+import (
+	"testing"
+
+	"github.com/multiversx/mx-chain-communication-go/websocket/data"
+	"github.com/multiversx/mx-chain-ws-connector-template-go/config"
+	"github.com/stretchr/testify/require"
+)
+
+func createConfig() config.WebSocketConfig {
+	return config.WebSocketConfig{
+		Url:                "localhost",
+		MarshallerType:     "json",
+		RetryDuration:      1,
+		WithAcknowledge:    false,
+		BlockingAckOnError: false,
+		Mode:               data.ModeClient,
+	}
+}
+
+func TestCreateWSConnector(t *testing.T) {
+	t.Parallel()
+
+	t.Run("invalid marshaller, should return error", func(t *testing.T) {
+		t.Parallel()
+
+		cfg := createConfig()
+		cfg.MarshallerType = "invalid"
+		ws, err := CreateWSConnector(cfg)
+		require.NotNil(t, err)
+		require.Nil(t, ws)
+	})
+
+	t.Run("cannot create ws host, should return error", func(t *testing.T) {
+		t.Parallel()
+
+		cfg := createConfig()
+		cfg.RetryDuration = 0
+		ws, err := CreateWSConnector(cfg)
+		require.NotNil(t, err)
+		require.Nil(t, ws)
+	})
+
+	t.Run("should work", func(t *testing.T) {
+		t.Parallel()
+
+		cfg := createConfig()
+		ws, err := CreateWSConnector(cfg)
+		require.Nil(t, err)
+		require.NotNil(t, ws)
+
+		_ = ws.Close()
+	})
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..d56f4de
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,28 @@
+module github.com/multiversx/mx-chain-ws-connector-template-go
+
+go 1.17
+
+require (
+	github.com/multiversx/mx-chain-communication-go v1.0.1
+	github.com/multiversx/mx-chain-core-go v1.2.4
+	github.com/multiversx/mx-chain-logger-go v1.0.11
+	github.com/stretchr/testify v1.8.2
+	github.com/urfave/cli v1.22.13
+)
+
+require (
+	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/denisbrodbeck/machineid v1.0.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/gorilla/mux v1.8.0 // indirect
+	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
+	github.com/pelletier/go-toml v1.9.3 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	golang.org/x/sys v0.2.0 // indirect
+	google.golang.org/protobuf v1.26.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..737ec91
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,184 @@
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diff --git a/process/errors.go b/process/errors.go
new file mode 100644
index 0000000..f7494b0
--- /dev/null
+++ b/process/errors.go
@@ -0,0 +1,11 @@
+package process
+
+import "errors"
+
+var errInvalidOperationType = errors.New("invalid/unknown operation type")
+
+var errNilMarshaller = errors.New("nil marshaller provided")
+
+var errNilLogger = errors.New("nil logger provided")
+
+var errNilOutportBlockData = errors.New("nil outport block data")
diff --git a/process/interface.go b/process/interface.go
new file mode 100644
index 0000000..a89205a
--- /dev/null
+++ b/process/interface.go
@@ -0,0 +1,19 @@
+package process
+
+// WSConnector defines a ws connector that receives incoming data and can be closed
+type WSConnector interface {
+	Close() error
+}
+
+// DataProcessor defines a payload processor for incoming ws data
+type DataProcessor interface {
+	ProcessPayload(payload []byte, topic string) error
+	Close() error
+	IsInterfaceNil() bool
+}
+
+// Logger defines the behavior of a data logger component
+type Logger interface {
+	Info(message string, args ...interface{})
+	IsInterfaceNil() bool
+}
diff --git a/process/logDataProcessor.go b/process/logDataProcessor.go
new file mode 100644
index 0000000..264eb38
--- /dev/null
+++ b/process/logDataProcessor.go
@@ -0,0 +1,152 @@
+package process
+
+import (
+	"fmt"
+
+	"github.com/multiversx/mx-chain-core-go/core/check"
+	"github.com/multiversx/mx-chain-core-go/data/outport"
+	"github.com/multiversx/mx-chain-core-go/marshal"
+)
+
+type logDataProcessor struct {
+	marshaller        marshal.Marshalizer
+	logger            Logger
+	operationHandlers map[string]func(marshalledData []byte) error
+}
+
+// NewLogDataProcessor creates a data processor able to receive data from a ws outport driver and log events
+func NewLogDataProcessor(marshaller marshal.Marshalizer, logger Logger) (DataProcessor, error) {
+	if check.IfNil(marshaller) {
+		return nil, errNilMarshaller
+	}
+	if check.IfNil(logger) {
+		return nil, errNilLogger
+	}
+
+	dp := &logDataProcessor{
+		marshaller: marshaller,
+		logger:     logger,
+	}
+
+	dp.operationHandlers = map[string]func(marshalledData []byte) error{
+		outport.TopicSaveBlock:             dp.saveBlock,
+		outport.TopicRevertIndexedBlock:    dp.revertIndexedBlock,
+		outport.TopicSaveRoundsInfo:        dp.saveRounds,
+		outport.TopicSaveValidatorsRating:  dp.saveValidatorsRating,
+		outport.TopicSaveValidatorsPubKeys: dp.saveValidatorsPubKeys,
+		outport.TopicSaveAccounts:          dp.saveAccounts,
+		outport.TopicFinalizedBlock:        dp.finalizedBlock,
+	}
+
+	return dp, nil
+}
+
+// ProcessPayload will process the received payload, if the topic is known.
+func (dp *logDataProcessor) ProcessPayload(payload []byte, topic string) error {
+	operationHandler, found := dp.operationHandlers[topic]
+	if !found {
+		return fmt.Errorf("%w, operation type for topic = %s, received data = %s",
+			errInvalidOperationType, topic, string(payload))
+	}
+
+	return operationHandler(payload)
+}
+
+func (dp *logDataProcessor) saveBlock(marshalledData []byte) error {
+	outportBlock := &outport.OutportBlock{}
+	err := dp.marshaller.Unmarshal(outportBlock, marshalledData)
+	if err != nil {
+		return err
+	}
+
+	if outportBlock.BlockData == nil {
+		return errNilOutportBlockData
+	}
+
+	dp.logger.Info("received payload", "topic", outport.TopicSaveBlock, "hash", outportBlock.BlockData.HeaderHash)
+
+	return nil
+}
+
+func (dp *logDataProcessor) revertIndexedBlock(marshalledData []byte) error {
+	blockData := &outport.BlockData{}
+	err := dp.marshaller.Unmarshal(blockData, marshalledData)
+	if err != nil {
+		return err
+	}
+
+	dp.logger.Info("received payload", "topic", outport.TopicRevertIndexedBlock)
+
+	return nil
+}
+
+func (dp *logDataProcessor) saveRounds(marshalledData []byte) error {
+	roundsInfo := &outport.RoundsInfo{}
+	err := dp.marshaller.Unmarshal(roundsInfo, marshalledData)
+	if err != nil {
+		return err
+	}
+
+	dp.logger.Info("received payload", "topic", outport.TopicSaveRoundsInfo)
+
+	return nil
+}
+
+func (dp *logDataProcessor) saveValidatorsRating(marshalledData []byte) error {
+	ratingData := &outport.ValidatorsRating{}
+	err := dp.marshaller.Unmarshal(ratingData, marshalledData)
+	if err != nil {
+		return err
+	}
+
+	dp.logger.Info("received payload", "topic", outport.TopicSaveValidatorsRating)
+
+	return nil
+}
+
+func (dp *logDataProcessor) saveValidatorsPubKeys(marshalledData []byte) error {
+	validatorsPubKeys := &outport.ValidatorsPubKeys{}
+	err := dp.marshaller.Unmarshal(validatorsPubKeys, marshalledData)
+	if err != nil {
+		return err
+	}
+
+	dp.logger.Info("received payload", "topic", outport.TopicSaveValidatorsPubKeys)
+
+	return nil
+}
+
+func (dp *logDataProcessor) saveAccounts(marshalledData []byte) error {
+	accounts := &outport.Accounts{}
+	err := dp.marshaller.Unmarshal(accounts, marshalledData)
+	if err != nil {
+		return err
+	}
+
+	dp.logger.Info("received payload", "topic", outport.TopicSaveAccounts)
+
+	return nil
+}
+
+func (dp *logDataProcessor) finalizedBlock(marshalledData []byte) error {
+	finalizedBlock := &outport.FinalizedBlock{}
+	err := dp.marshaller.Unmarshal(finalizedBlock, marshalledData)
+	if err != nil {
+		return err
+	}
+
+	dp.logger.Info("received payload", "topic", outport.TopicFinalizedBlock)
+
+	return nil
+}
+
+// Close will signal via a log that the data processor is closed
+func (dp *logDataProcessor) Close() error {
+	dp.logger.Info("data processor closed")
+	return nil
+}
+
+// IsInterfaceNil checks if the underlying pointer is nil
+func (dp *logDataProcessor) IsInterfaceNil() bool {
+	return dp == nil
+}
diff --git a/process/logDataProcessor_test.go b/process/logDataProcessor_test.go
new file mode 100644
index 0000000..63de2b2
--- /dev/null
+++ b/process/logDataProcessor_test.go
@@ -0,0 +1,249 @@
+package process
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/multiversx/mx-chain-core-go/core/check"
+	"github.com/multiversx/mx-chain-core-go/data/outport"
+	"github.com/multiversx/mx-chain-ws-connector-template-go/testscommon"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewLogDataProcessor(t *testing.T) {
+	t.Parallel()
+
+	t.Run("nil marshaller, should return error", func(t *testing.T) {
+		dp, err := NewLogDataProcessor(nil, &testscommon.LoggerStub{})
+		require.True(t, check.IfNil(dp))
+		require.Equal(t, errNilMarshaller, err)
+	})
+
+	t.Run("nil logger, should return error", func(t *testing.T) {
+		dp, err := NewLogDataProcessor(&testscommon.MarshallerMock{}, nil)
+		require.True(t, check.IfNil(dp))
+		require.Equal(t, errNilLogger, err)
+	})
+
+	t.Run("should work", func(t *testing.T) {
+		dp, err := NewLogDataProcessor(&testscommon.MarshallerMock{}, &testscommon.LoggerStub{})
+		require.False(t, check.IfNil(dp))
+		require.Nil(t, err)
+
+		err = dp.Close()
+		require.Nil(t, err)
+	})
+}
+
+func TestLogDataProcessor_ProcessPayload(t *testing.T) {
+	t.Parallel()
+
+	marshaller := &testscommon.MarshallerMock{}
+
+	t.Run("invalid topic, should return error", func(t *testing.T) {
+		t.Parallel()
+
+		dp, _ := NewLogDataProcessor(marshaller, &testscommon.LoggerStub{})
+		err := dp.ProcessPayload([]byte("payload"), "invalid topic")
+		require.True(t, strings.Contains(err.Error(), errInvalidOperationType.Error()))
+		require.True(t, strings.Contains(err.Error(), "payload"))
+		require.True(t, strings.Contains(err.Error(), "invalid topic"))
+	})
+
+	t.Run("save block", func(t *testing.T) {
+		t.Parallel()
+
+		logInfoCalledCt := 0
+		logger := &testscommon.LoggerStub{
+			InfoCalled: func(message string, args ...interface{}) {
+				require.Equal(t, "received payload", message)
+				require.Len(t, args, 1)
+				require.Equal(t, []interface{}{"topic", outport.TopicSaveBlock, "hash", []byte("hash")}, args[0])
+				logInfoCalledCt++
+			},
+		}
+		dp, _ := NewLogDataProcessor(marshaller, logger)
+
+		err := dp.ProcessPayload([]byte("payload"), outport.TopicSaveBlock)
+		require.NotNil(t, err)
+		require.Equal(t, 0, logInfoCalledCt)
+
+		outportBlock := &outport.OutportBlock{}
+		outportBlockBytes, err := marshaller.Marshal(outportBlock)
+		require.Nil(t, err)
+
+		err = dp.ProcessPayload(outportBlockBytes, outport.TopicSaveBlock)
+		require.Equal(t, errNilOutportBlockData, err)
+		require.Equal(t, 0, logInfoCalledCt)
+
+		outportBlock.BlockData = &outport.BlockData{HeaderHash: []byte("hash")}
+		outportBlockBytes, err = marshaller.Marshal(outportBlock)
+		require.Nil(t, err)
+
+		err = dp.ProcessPayload(outportBlockBytes, outport.TopicSaveBlock)
+		require.Nil(t, err)
+		require.Equal(t, 1, logInfoCalledCt)
+	})
+
+	t.Run("revert indexed block", func(t *testing.T) {
+		t.Parallel()
+
+		logInfoCalledCt := 0
+		logger := &testscommon.LoggerStub{
+			InfoCalled: func(message string, args ...interface{}) {
+				require.Equal(t, "received payload", message)
+				require.Len(t, args, 1)
+				require.Equal(t, []interface{}{"topic", outport.TopicRevertIndexedBlock}, args[0])
+				logInfoCalledCt++
+			},
+		}
+		dp, _ := NewLogDataProcessor(marshaller, logger)
+
+		err := dp.ProcessPayload([]byte("payload"), outport.TopicRevertIndexedBlock)
+		require.NotNil(t, err)
+		require.Equal(t, 0, logInfoCalledCt)
+
+		blockData := &outport.BlockData{}
+		blockDataBytes, err := marshaller.Marshal(blockData)
+		require.Nil(t, err)
+
+		err = dp.ProcessPayload(blockDataBytes, outport.TopicRevertIndexedBlock)
+		require.Nil(t, err)
+		require.Equal(t, 1, logInfoCalledCt)
+	})
+
+	t.Run("save rounds", func(t *testing.T) {
+		t.Parallel()
+
+		logInfoCalledCt := 0
+		logger := &testscommon.LoggerStub{
+			InfoCalled: func(message string, args ...interface{}) {
+				require.Equal(t, "received payload", message)
+				require.Len(t, args, 1)
+				require.Equal(t, []interface{}{"topic", outport.TopicSaveRoundsInfo}, args[0])
+				logInfoCalledCt++
+			},
+		}
+		dp, _ := NewLogDataProcessor(marshaller, logger)
+
+		err := dp.ProcessPayload([]byte("payload"), outport.TopicSaveRoundsInfo)
+		require.NotNil(t, err)
+		require.Equal(t, 0, logInfoCalledCt)
+
+		roundsInfo := &outport.RoundsInfo{}
+		roundsInfoBytes, err := marshaller.Marshal(roundsInfo)
+		require.Nil(t, err)
+
+		err = dp.ProcessPayload(roundsInfoBytes, outport.TopicSaveRoundsInfo)
+		require.Nil(t, err)
+		require.Equal(t, 1, logInfoCalledCt)
+	})
+
+	t.Run("save validators rating", func(t *testing.T) {
+		t.Parallel()
+
+		logInfoCalledCt := 0
+		logger := &testscommon.LoggerStub{
+			InfoCalled: func(message string, args ...interface{}) {
+				require.Equal(t, "received payload", message)
+				require.Len(t, args, 1)
+				require.Equal(t, []interface{}{"topic", outport.TopicSaveValidatorsRating}, args[0])
+				logInfoCalledCt++
+			},
+		}
+		dp, _ := NewLogDataProcessor(marshaller, logger)
+
+		err := dp.ProcessPayload([]byte("payload"), outport.TopicSaveValidatorsRating)
+		require.NotNil(t, err)
+		require.Equal(t, 0, logInfoCalledCt)
+
+		ratingData := &outport.ValidatorsRating{}
+		ratingDataBytes, err := marshaller.Marshal(ratingData)
+		require.Nil(t, err)
+
+		err = dp.ProcessPayload(ratingDataBytes, outport.TopicSaveValidatorsRating)
+		require.Nil(t, err)
+		require.Equal(t, 1, logInfoCalledCt)
+	})
+
+	t.Run("save validators pubKeys", func(t *testing.T) {
+		t.Parallel()
+
+		logInfoCalledCt := 0
+		logger := &testscommon.LoggerStub{
+			InfoCalled: func(message string, args ...interface{}) {
+				require.Equal(t, "received payload", message)
+				require.Len(t, args, 1)
+				require.Equal(t, []interface{}{"topic", outport.TopicSaveValidatorsPubKeys}, args[0])
+				logInfoCalledCt++
+			},
+		}
+		dp, _ := NewLogDataProcessor(marshaller, logger)
+
+		err := dp.ProcessPayload([]byte("payload"), outport.TopicSaveValidatorsPubKeys)
+		require.NotNil(t, err)
+		require.Equal(t, 0, logInfoCalledCt)
+
+		validatorsPubKeys := &outport.ValidatorsPubKeys{}
+		validatorsPubKeysBytes, err := marshaller.Marshal(validatorsPubKeys)
+		require.Nil(t, err)
+
+		err = dp.ProcessPayload(validatorsPubKeysBytes, outport.TopicSaveValidatorsPubKeys)
+		require.Nil(t, err)
+		require.Equal(t, 1, logInfoCalledCt)
+	})
+
+	t.Run("save accounts", func(t *testing.T) {
+		t.Parallel()
+
+		logInfoCalledCt := 0
+		logger := &testscommon.LoggerStub{
+			InfoCalled: func(message string, args ...interface{}) {
+				require.Equal(t, "received payload", message)
+				require.Len(t, args, 1)
+				require.Equal(t, []interface{}{"topic", outport.TopicSaveAccounts}, args[0])
+				logInfoCalledCt++
+			},
+		}
+		dp, _ := NewLogDataProcessor(marshaller, logger)
+
+		err := dp.ProcessPayload([]byte("payload"), outport.TopicSaveAccounts)
+		require.NotNil(t, err)
+		require.Equal(t, 0, logInfoCalledCt)
+
+		accounts := &outport.Accounts{}
+		accountsBytes, err := marshaller.Marshal(accounts)
+		require.Nil(t, err)
+
+		err = dp.ProcessPayload(accountsBytes, outport.TopicSaveAccounts)
+		require.Nil(t, err)
+		require.Equal(t, 1, logInfoCalledCt)
+	})
+
+	t.Run("finalized block", func(t *testing.T) {
+		t.Parallel()
+
+		logInfoCalledCt := 0
+		logger := &testscommon.LoggerStub{
+			InfoCalled: func(message string, args ...interface{}) {
+				require.Equal(t, "received payload", message)
+				require.Len(t, args, 1)
+				require.Equal(t, []interface{}{"topic", outport.TopicFinalizedBlock}, args[0])
+				logInfoCalledCt++
+			},
+		}
+		dp, _ := NewLogDataProcessor(marshaller, logger)
+
+		err := dp.ProcessPayload([]byte("payload"), outport.TopicFinalizedBlock)
+		require.NotNil(t, err)
+		require.Equal(t, 0, logInfoCalledCt)
+
+		finalizedBlock := &outport.FinalizedBlock{}
+		finalizedBlockBytes, err := marshaller.Marshal(finalizedBlock)
+		require.Nil(t, err)
+
+		err = dp.ProcessPayload(finalizedBlockBytes, outport.TopicFinalizedBlock)
+		require.Nil(t, err)
+		require.Equal(t, 1, logInfoCalledCt)
+	})
+}
diff --git a/testscommon/loggerStub.go b/testscommon/loggerStub.go
new file mode 100644
index 0000000..05bd0c1
--- /dev/null
+++ b/testscommon/loggerStub.go
@@ -0,0 +1,18 @@
+package testscommon
+
+// LoggerStub -
+type LoggerStub struct {
+	InfoCalled func(message string, args ...interface{})
+}
+
+// Info -
+func (l *LoggerStub) Info(message string, args ...interface{}) {
+	if l.InfoCalled != nil {
+		l.InfoCalled(message, args)
+	}
+}
+
+// IsInterfaceNil -
+func (l *LoggerStub) IsInterfaceNil() bool {
+	return l == nil
+}
diff --git a/testscommon/marshallerMock.go b/testscommon/marshallerMock.go
new file mode 100644
index 0000000..b4259f2
--- /dev/null
+++ b/testscommon/marshallerMock.go
@@ -0,0 +1,41 @@
+package testscommon
+
+import (
+	"encoding/json"
+	"errors"
+)
+
+// MarshallerMock -
+type MarshallerMock struct {
+}
+
+// Marshal -
+func (mm *MarshallerMock) Marshal(obj interface{}) ([]byte, error) {
+	if obj == nil {
+		return nil, errors.New("nil object to serialize from")
+	}
+
+	return json.Marshal(obj)
+}
+
+// Unmarshal -
+func (mm *MarshallerMock) Unmarshal(obj interface{}, buff []byte) error {
+	if obj == nil {
+		return errors.New("nil object to serialize to")
+	}
+
+	if buff == nil {
+		return errors.New("nil byte buffer to deserialize from")
+	}
+
+	if len(buff) == 0 {
+		return errors.New("empty byte buffer to deserialize from")
+	}
+
+	return json.Unmarshal(buff, obj)
+}
+
+// IsInterfaceNil -
+func (mm *MarshallerMock) IsInterfaceNil() bool {
+	return mm == nil
+}