Unleashing power of Cross platform with Flutter Socket programming for realtime device integration. - Pragmatyc - Digital Product Engineering | Enterprise Solutions

Unleashing power of Cross platform with Flutter Socket programming for realtime device integration.

02 Aug, 2023


Socket Programming in Flutter is a powerful mechanism to establish real-time, bidirectional communication between mobile/desktop applications and devices. In this blog, we will explain a real-world example of how Socket Programming, integrated into a Flutter desktop application, helped streamline printing workflows. This has helped the client to build a seamless experience for the end user of the Printing device, overall, it helped in heightening customer experience, and increase in efficiency. And for the Client, he was able to rip the benefits of using cross-platform, while doing hardware integration. 

Socket communication occurs between a Server and one or more Clients. In our case, Server is Printer and Client is Application. Below diagram gives details of socket flow.

Socket Flow Diagram

Swift and Seamless Printing Workflows

Cross platforms were never considered as go- to technology when it comes to hardware integration. But by leveraging Socket Programming, the Flutter desktop application enabled us to interact directly with  Wi-Fi printers in real-time. This seamless communication facilitated swift printing workflows, allowing users to initiate print jobs, monitor progress, and receive live updates on printing status.   

To facilitate seamless communication between Printer and Application, there are Socket functions which are explained as follows: 

  • socket(): Create a new socket for communication. 
  • bind(): Bind the socket to a specific address and port. 
  • listen(): Set the socket to the listening state to accept incoming connections. 
  • accept(): Accept an incoming client connection and create a new socket for communication with the client. 
  • connect(): Initiate a connection to a remote server. 
  • send(): Send data over a connected socket. 
  • recv(): Receive data from a connected socket. 
  • close(): Close the socket and release associated resources.

Top Benefits

Remote Printer Management:

Socket Programming empowered our developers to design a solution which helps in remotely managing network of Wi-Fi printers from a centralized desktop application. App users could easily add printers to the network, configure settings, and monitor multiple devices simultaneously. This centralized approach eliminated the need for manual printer setup and reduced the risk of configuration errors, resulting in streamlined operations and optimized resource utilization. 

Data-Driven Decision Making:

The Socket Programming-enabled application provided real-time data insights. The socket function recv() provides data from the Printer. This allowed us to make data-driven decisions regarding printer usage, performance, and maintenance. Access to accurate and up-to-date information empowered product owners to identify trends, allocate resources effectively, and implement proactive measures to enhance printer performance and reliability. 

Increased Operational Agility:

With Socket Programming facilitating instantaneous communication, our team gained the ability to respond rapidly to any printing issues or urgent requirements. This increased operational agility minimized printing bottlenecks, ensuring that critical documents were delivered promptly, and customer deadlines were met consistently. 

Cost Reduction and Resource Optimization:

The streamlined printing workflows, enabled by Socket Programming, significantly reduced development cost for client, for end user it has helped to reduce manual intervention and paper wastage. With real-time updates we were able to develop, through which users could monitor print progress and address any errors promptly, leading to fewer reprints and optimized resource utilization. As a result, all stakeholders experienced tangible Cost Savings and a more sustainable approach to printing operations. 

Cross-Platform Advantage:

We developed the Socket Programming-based desktop application for both Mac and Windows platforms using Flutter’s cross-platform capabilities. This approach not only reduced the development and maintenance budget but also ensured that our client’s printing solution reached a wider audience through multiple platform support. The application’s consistent performance and user experience across different operating systems further strengthened our client’s market presence and positioned them for future growth


Socket Programming in Flutter opens up a world of possibilities for those who are seeking to use Cross Platforms for Hardware Device Integrations. Our real-time printing success story exemplifies how Socket Programming can streamline workflows, improve operational efficiency, and reduce costs. 

At Pragmatyc,  as a Digital Product Development team, we are embracing the possibilities of Socket programming in Flutter. Whether it’s real-time device control, remote management, or data-driven decision-making, Socket Programming in Flutter empowers businesses to stay ahead of the curve, respond swiftly to dynamic market demands, and thrive in the ever-evolving digital landscape.  

Written by Prateek Swamy

Consultant - Delivery

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