With IceWarp EPOS being released, microservices are playing an important role in the IceWarp products family. Despite the fact customer does not need to know how the microservices are working in detail to have the IceWarp server up and running, a brief description follows.
Dashboard
- The user’s browser requests the server to open Dashboard/Notes in the WebClient.
- Dashboard/Notes Interface is uploaded from the Interface Microservices Cloud.
- API Microservice Cloud requests data from the server and transforms it to a form readable for Dashboard.
- As soon as the data received from the server is transformed, API Microservices sends it to the user’s browser.
Problems can occur in Step 3, namely in communication between the server and the API of the Microservices. If the latter cannot access the server because of some network issues, the application icon is not visible. Since the data is stored on the server in a format, which is not readable for the user’s interface (downloaded from the Interface Microservices), it needs to be transformed by the API Microservices. Any changes made by users go to the API Microservices, which transforms them into a form suitable for storage and sends them back to the server.
The dashboard is a cloud microservice; however, it does not store any user's data on the on-prem server except the background images.
Documents
When the user wants to change any of his documents, the file is sent to Microservices Cloud via an encrypted channel. In the Cloud, it is unpacked and presented as a WebClient application with all functionality. As soon as the changes are made, the file is sent back to the server and stored there.
- The user’s browser sends a request to open WebDocuments in the WebClient. Which are stored on the IceWarp server (on-premise or in-Cloud). The server directly sends the documents to the user’s browser.
- If the user is making changes in the documents, the server forwards the request to WebDocuments Interface Microservices Cloud and sends the documents there for processing. In the Microservices Cloud, the document is unfolded and shown to the user in the window together with all functionality.
The server loads the Webclient interface and transforms the data to be displayed in the user's browser.
There is a firewall on the server’s side, which controls the incoming traffic. In some cases, it can prohibit the incoming connection between the server and Microservices. Server and Microservices Cloud communicate via HTTPS. Thus the port which receives the incoming traffic has to be open for it. As communication is initiated by the server and not by Microservices, the connection is more likely to be established.
Conferences
- The browser sends a request to open Conferences in the WebClient. The latter is stored on the IceWarp server (on-premise or in-Cloud).
- The server addresses Cloud Microservices as a database, and a totally new application is opened to the user’s browser. No data is processed in Microservices Cloud; it works only to open a new app.
Conferences are scheduled on the server. All user interactions are held in the Microservices Cloud, only user interface is stored there. However, all information on the meetings, contacts, history, etc., is stored on the server.
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