Program a basic outlook add-in to extract contacts to a REST api

Plz be informed this is a paid test task. We require from you to implement an outlook add-in to work well with Outlook 2021 and later. We want to see experience and expertise in the section of Outlook Add-In development for multi-platform (windows, mac, browser). Also we want to see clean and open-book estimates per milestones. Afterwards, after successful assignment + delivery we will share you regularly new features to implement. the add-in provides in outlook: - iterate over selected (marked) contacts - provide option to export the contacts via right click context menu or ribbon menu - the exports via are done via REST api from outlook to api what is required? - you develop in C# the add-in - your code can fetch all contact fields and maps it into a contacts DTO class - the DTO class can be sent via REST api client to a REST api UI elements: - button in the ribbon sesion - context menu for right clicking on mouse - both provide a settings dialog to define the REST api endpoint runtime? - outlook windows 10, 11 - outlook windows server 2019 - outlook macos - browser outlook (owa) delivery? - typescript code - generated project with yeoman - provided proofs it works at your end (video or demo call) - into our git repository - clearly structured code (clean code) in addin parts, ui parts, DTO and rest api client classes - you show us the working code in your environment - you install and test it in our clean environment - we test it also on our clean environment - deps are defined in nuget or similar dep management - built with nuget and msbuilt or similar built tool on given solution finally - after provided tests, we release payments MS1: - create a add-in with settings page and all required buttons and menus - [login to view URL] - triggering a button, will result into a simple modal dialog popup - [login to view URL] MS2: - implement the rest api client using a public mock api - client checks if the contact is available already on api server side - depending on availabbility either the create or update will be implemented in later milestones we want to have also the sync of api to outlook, so that outlook contacts get updated or created from api. But in MS1+MS2 we only require the sync from Outlook to API