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  1. API reference
  2. Welcome
    1. Getting started
    2. Get Flexmonster
    3. Quick start
    4. System requirements
    5. Troubleshooting
    6. Managing license keys
    7. Migrating from WebDataRocks to Flexmonster
  3. Integration with frameworks
    1. Available tutorials
    2. Integration with Angular
    3. Integration with React
    4. Integration with Vue
    5. Other integrations
      1. Integration with Python
        1. Integration with Django
        2. Integration with Jupyter Notebook
      2. Integration with React Native
      3. Integration with AngularJS (v1.x)
      4. Integration with TypeScript
      5. Integration with R Shiny
      6. Integration with jQuery
      7. Integration with Ionic
      8. Integration with Electron.js
      9. Integration with Webpack
      10. Integration with RequireJS
  4. Connecting to Data Source
    1. Supported data sources
    2. JSON
      1. Connecting to JSON
      2. Connecting to JSON using Flexmonster Data Server
      3. Data types in JSON
    3. CSV
      1. Connecting to CSV
      2. Connecting to CSV using Flexmonster Data Server
      3. Data types in CSV
    4. Database
      1. Connecting to SQL databases
      2. Connecting to a MySQL database
      3. Connecting to a Microsoft SQL Server database
      4. Connecting to a PostgreSQL database
      5. Connecting to an Oracle database
    5. Flexmonster Data Server
      1. Getting started with Flexmonster Data Server
      2. Installation guide
      3. Configurations reference
      4. Data sources guide
      5. Security and authorization guide
      6. The Data Server as a DLL
        1. Getting started with the Data Server as a DLL
        2. Referring the Data Server as a DLL
        3. Implementing the API controller
        4. Implementing the server filter
        5. Implementing the custom parser
        6. DLL configurations reference
        7. The controller's methods for request handling
      7. Troubleshooting the Data Server
    6. MongoDB
      1. Introduction to Flexmonster MongoDB Connector
      2. Getting started with the MongoDB Connector
      3. Embedding the MongoDB Connector into the server
    7. Microsoft Analysis Services
      1. Connecting to Microsoft Analysis Services
      2. Getting started with Flexmonster Accelerator
      3. Referring the Accelerator as a DLL
      4. Configuring the authentication process
      5. Configuring a secure HTTPS connection
      6. Troubleshooting
    8. Custom data source API
      1. Introduction to the custom data source API
      2. A quick overview of a sample Node.js server
      3. A quick overview of a sample .NET Core server
      4. Implement your own server
        1. Implementing the custom data source API server
        2. Implementing filters
        3. Supporting more aggregation functions
        4. Supporting multilevel hierarchies
        5. Returning data for the drill-through view
    9. Elasticsearch
      1. Connecting to Elasticsearch
      2. Configuring the mapping
    10. Pentaho Mondrian
      1. Connecting to Pentaho Mondrian
      2. Getting started with the Accelerator
      3. Configuring Mondrian roles
      4. Configuring username/password protection
      5. Configuring a secure HTTPS connection
      6. Troubleshooting
    11. Connecting to other data sources
  5. Security
    1. Security in Flexmonster
    2. Security aspects of connecting to an OLAP cube
      1. Ways of connecting to an OLAP cube
      2. The data transfer process
      3. Data security
      4. Data access management
  6. Configuring report
    1. What is a report
    2. Data source
    3. Slice
    4. Options
    5. Mapping
    6. Number formatting
    7. Conditional formatting
    8. Set the report for the component
    9. Get the report from the component
    10. Date and time formatting
    11. Configuring global options
    12. Export and print
    13. Calculated values
    14. Custom sorting
  7. Charts
    1. Available tutorials
    2. Flexmonster Pivot Charts
    3. Integration with Highcharts
    4. Integration with amCharts
    5. Integration with Google Charts
    6. Integration with FusionCharts
    7. Integration with any charting library
  8. Customizing
    1. Available tutorials
    2. Customizing the Toolbar
    3. Customizing appearance
    4. Customizing the context menu
    5. Customizing the grid
    6. Customizing the pivot charts
    7. Localizing the component
  9. Updating to the latest version
    1. Updating to the latest version
    2. Release notes
    3. Migration guide from 2.7 to 2.8
    4. Migration guide from 2.6 to 2.7
    5. Migration guide from 2.5 to 2.6
    6. Migration guide from 2.4 to 2.5
    7. Migration guide from 2.3 to 2.4
    8. Migration guide from 2.2 to 2.3
  10. Flexmonster CLI Reference
    1. Overview
    2. Troubleshooting the CLI
    3. flexmonster create
    4. flexmonster add
    5. flexmonster update
    6. flexmonster version
    7. flexmonster help
  11. Documentation for older versions
Table of contents

Getting started with the Data Server as a DLL


Flexmonster Data Server can be embedded in your project as a DLL – a separate flexible module. The advantages of using a DLL instead of the console application are the following:

  • No need to launch the .exe file.
  • Easy software updates.
  • An option to customize the Data Server.

For a quick start with Flexmonster Data Server as a DLL, see the sample .NET Core application with the Data Server embedded. 

To embed Flexmonster Data Server into an existing/new .NET Core application, see this guide: Referring the Data Server as a DLL.

Usage example

Flexmonster.DataServer.Core.dll is a flexible solution that can be used in many ways. To demonstrate possible options for the Data Server use, we created an ASP.NET Core application with a custom server using Flexmonster.DataServer.Core.dll

The application repository contains a solution file DemoDataServerCore.sln, so the sample can be opened and launched via Visual Studio.


To run the sample project, you need Microsoft .NET Core 3.0 or higher. Get it here if it’s not already installed on your machine.

Run the sample project

To start the sample application from the console, run the following commands:

cd DemoDataServerCore
dotnet restore
dotnet run

To see the result, open http://localhost:5000/ in the browser.

Use cases

With Flexmonster.DataServer.Core.dll, you can provide role-based access to the data. Showing different data subsets to different user groups is possible with the server filter. On the http://localhost:5000/ page, there is the pivot table and the drop-down menu. Select a role from the menu to see how it affects the data shown in Flexmonster Pivot.

To see how the server-side filtering is implemented in the sample server, refer to the FlexmonsterAPIController.cs file.

To learn more about the server filter, see the Implementing the server filter guide.

Another use case demonstrated in the custom server is loading data from a custom data source. To work with the custom data source, implement an appropriate parser for the data. The example of a custom parser can be viewed in the CustomParser.cs file.

In the sample project, the data shown on the grid is from the custom parser, but "csv", "json", and "database" parser types can also be used. To make the server use several parsers, add a new object to the "DataSources" property in the appsettings.json file. For example:

"DataSources": [
"Type": "custom",
"Indexes": {
"custom-index": null
"Type": "json",
"Indexes": {
"json-index": {
"Path": "data.json"

To learn more about the custom parser, see the Implementing the custom parser guide.

What’s next?

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