This thesis was introduced as the development of the Food Robin Hood application which was a part of the Supermarket Python Project aiming for a unique food waste solution for supermarkets in Finland. Hence, the aim of the thesis was not only to contribute a new solution to reduce the eatable food waste in Finnish retailing by reusing but also to apply web technologies to solve the critical and realistic problem.

Besides the solid foundation by the research and analysis of food waste in the overview, the thesis initiated and developed a responsive web application with the use of modern web technologies, such as programming with TypeScript, the front-end work with the React library and the Redux toolkit, the back-end work with Node.js, ExpressJS, and MongoDB, and the deployment via the Google Cloud Platform. To ensure the workflow as well as the time frame, this thesis was applied Trello as the project management tool for better results. Derived from the Supermarket Python Project with fundamental ideas, orientation, and objectives, but deeply focused on the technical side, the initial application was built and developed with full features as requirements.

Consequently, the Food Robin Hood was published successfully on a public site with the domain provided by a third-party company with Github. With many efforts in completing the research part as the panorama of food waste in Finland as well as implementing and developing a web application in the real-life project, the goals of this thesis were achieved despite a few difficulties and challenges during the process. Last but not least, this thesis as well as the Supermarket Python Project would be the premise and positive effect for further development in the future for minimizing the socio-economic loss from food waste and aiming for a sustainable society.