Embedding Bold BI Dashboards in Blazor using the Embedded SDK

The sample has been provided in the following sections for Blazor WebAssembly, which demonstrates the dashboard rendering available on your Bold BI server. It is followed by steps to create a new embedding application in Blazor WebAssembly on your own.

NOTE: Reading the Getting Started section of the documentation is the best way to begin. The Getting Started guide provides you with sufficient information that you need to know before working on the sample.

Prerequisites

How to run Blazor WebAssembly sample

Please get the Blazor WebAssembly sample from GitHub.
Please make sure that you have enabled embed authentication on the embed settings page. If it is not currently enabled, please refer to the following image or detailed instructions to enable it.
To download the embedConfig.json file, please follow this link for reference. Furthermore, you can refer to the image below for visual guidance.

Please copy the downloaded embedConfig.json file and paste it into the Server folder location within the application. Please ensure you have placed it in the application, as shown in the following image.

EmbedConfig image

ServerUrl	Dashboard Server BI URL (ex: http://localhost:5000/bi, https://demo.boldbi.com/bi)
SiteIdentifier	For the Bold BI Enterprise edition, it should be like site/site1. For Bold BI Cloud, it should be an empty string.
UserEmail	UserEmail of the Admin in your Bold BI, which would be used to get the dashboard list.
EmbedSecret	Get your EmbedSecret key from the Embed tab by enabling the `Enable embed authentication` in the Administration page
Environment	Your Bold BI application environment. (If it is a cloud analytics server, use `BoldBI.Environment.Cloud`; if it is your server, use `BoldBI.Environment.Enterprise`)
DashboardId	Item ID of the dashboard to be embedded in your application.
ExpirationTime	Token expiration time. (In the EmbedConfig.json file, the default token expiration time is 10000 seconds)

Please open your project in Visual Studio Code.
Then, open the terminal and navigate to the Server project directory by using cd command (e.g., cd C:\BlazorProject\Server).
To run the application, use the command dotnet watch run in the Visual Studio Code terminal.

You can edit the dashboard in design mode and create a new dashboard with the following changes in the renderDashboard() method.

dashboardId	Provide the dashboard ID of the dashboard you want to embed in view or edit mode. In order to create a new dashboard, please exclude this specific property.
mode	In which mode do you want to render the dashboard? It can either be 'BoldBI.Mode.View' or 'BoldBI.Mode.Design' mode.
authorizationServer	Url of the 'authorizationServerAPI' action in the application.

    function renderDashboard() {
      this.dashboard = BoldBI.create({
            serverUrl: data.ServerUrl + "/" + data.SiteIdentifier,
            dashboardId: data.DashboardId,
            embedContainerId: "dashboard",
            embedType: data.EmbedType,
            environment: data.Environment,
            mode: BoldBI.Mode.Design,
            width: window.innerWidth - 300 + "px",
            height: window.innerHeight - 100 + "px",
            expirationTime: 100000,
            authorizationServer: {
                url: authorizationServerUrl
            },
        });
        dashboard.loadDesigner();
    };

How the Blazor WebAssembly sample works

Based on the dashboard provided in the index.html, authorize the server URL by calling the AuthorizationServer function as follows.
In the above authorization, generate the SignatureUrl using the provided EmbedSecret key and validate the authorization in Bold BI. Once the authorization is validated, the dashboard will begin to render.
In the embedConfig.json file, modify the dashboard ID of the respective dashboard as desired for embedding.

Steps to create new Blazor WebAssembly application to embed dashboard

Please create a folder in the desired location and open it in Visual Studio Code.
Open the terminal in the Visual Studio Code. Please refer to the following image.
In order to create a new project, we must execute the following command in the terminal.
```
     dotnet new blazorwasm --hosted
```
Please make sure that you have enabled embed authentication on the embed settings page. If it is not currently enabled, please refer to the image or detailed instructions provided.
To download the embedConfig.json file, please click on the following link for reference. Furthermore, you can use the image below for visual guidance.
Please copy the downloaded embedConfig.json file and paste it into the Server folder location within the application. Please make sure that you have placed it in the application, as shown in the following image.

In the Shared project, create a new folder called Models. Create a model class as DataClass.cs to define the following properties. These properties are used to retrieve the dashboard details from the server.

Open the terminal and navigate to the Shared project directory using the cd command(e.g., cd C:\BlazorProject\Shared). Execute the following commands in the terminal to add the necessary references to the project: dotnet add package Newtonsoft.Json and dotnet add package System.Runtime.Serialization.Primitives. Make sure to include System.Runtime.Serialization and Newtonsoft.Json namespaces are in the DataClass.cs model file.

[DataContract]
public class EmbedClass
{
    [DataMember]
    public string embedQuerString { get; set; }
    [DataMember]
    public string dashboardServerApiUrl { get; set; }
}

public class EmbedDetails
{
    public string Environment { get; set; }

    public string SiteIdentifier { get; set; }

    public string ServerUrl { get; set; }

    public string EmbedSecret { get; set; }

    public string UserEmail { get; set; }

    public string EmbedType { get; set; }
    
    public string DashboardId { get; set; }
}

In the Shared Project, create another model class called GlobalAppSettings.cs to define the following properties. These properties will store the embedConfig.json file object within the GlobalAppSettings.
```
public class GlobalAppSettings
{
    public static EmbedDetails EmbedDetails { get; set; }
}
```
In the Client project, the following scripts and style sheets are mandatory to render the dashboard. Include the following code in your \wwwroot\index.html page of the <head> tag.
```
<script type="text/javascript" src="https://cdn.boldbi.com/embedded-sdk/v7.8.18/boldbi-embed.js"></script>
```

Inside the <body> tag, create the DOM element with the id dashboard and implement a function to render the dashboard.

    <script>
    var data;
    var authorizationServerUrl = "api/EmbedData/AuthorizationServer";
    async function fetchDataAndHandleErrors() {
        try {
            const response = await fetch('/api/EmbedData/GetConfig');
            const embedConfig = await response.json();
            data = embedConfig;
        } catch (error) {
            window.location.href = 'api/EmbedData/EmbedConfigErrorLog';
        }
    }
    fetchDataAndHandleErrors();

    function renderDashboard() {
        this.dashboard = BoldBI.create({
            serverUrl: data.ServerUrl + "/" + data.SiteIdentifier,
            dashboardId: data.DashboardId, // Provide the item id here to render the dashboard in design mode or to create dashboard don't initialize this property
            embedContainerId: "dashboard",
            embedType: data.EmbedType,
            environment: data.Environment,
            mode: BoldBI.Mode.View,
            width: "100%",
            height: window.innerHeight - 20 + "px",
            expirationTime: 100000,
            authorizationServer: {
                url: authorizationServerUrl
            },
        });
        this.dashboard.loadDashboard();
    }
    </script>

Open the Index.razor file in the Client project and implement the code as shown to invoke the renderDashboard() method.

   @page "/"
   @inject IJSRuntime JsRuntime

   <div id="dashboard"> </div>

   @functions {
   protected override void OnAfterRender(bool firstRender)
   {

       JsRuntime.InvokeAsync<object>("renderDashboard");
   }
   }

Open the MainLayout.razor file in the Client project and replace the code mentioned below.

     @inherits LayoutComponentBase
     <div class="page">
     <main>
        <article class="content px-4">
        @Body
        </article>
     </main>
     </div>

In the Server project, create the EmbedDataController.cs controller under the controller folder. To obtain specific dashboard details, define an API called AuthorizationServer() which utilizes the GetSignatureUrl() method to generate the algorithm. In this API, append the embedQueryString, userEmail, and the value from the GetSignatureUrl() method as query parameters in the URL to the authorization server of the specific dashboard.

Open the terminal and navigate to the Server project directory using the cd command (e.g., cd C:\BlazorProject\Server). Execute the following commands in the terminal to add the necessary reference to the project: dotnet add package Newtonsoft.Json. Include the namespaces for the Newtonsoft.Json, System.Security.Cryptography, System.Net.Http, Microsoft.AspNetCore.Mvc, and Models folders.

   [Route("api/[controller]")]
   [ApiController]
   public class EmbedDataController : Controller
   {
   [HttpGet]
   [Route("GetConfig")]
   public IActionResult GetConfig()
   {
       var jsonData = System.IO.File.ReadAllText("embedConfig.json");
       string basePath = AppDomain.CurrentDomain.BaseDirectory;
       string jsonString = System.IO.File.ReadAllText(Path.Combine(basePath, "embedConfig.json"));
       GlobalAppSettings.EmbedDetails = JsonConvert.DeserializeObject<EmbedDetails>(jsonString);
       return Ok(jsonData);
   }
   [HttpPost("[action]")]
   [Route("AuthorizationServer")]
   public string AuthorizationServer([FromBody] object embedQuerString)
   {
       var embedClass = JsonConvert.DeserializeObject<EmbedClass>(embedQuerString.ToString());
       var embedQuery = embedClass.embedQuerString;
       // User your user-email as embed_user_email
       embedQuery += "&embed_user_email=" + GlobalAppSettings.EmbedDetails.UserEmail;
       //To set embed_server_timestamp to overcome the EmbedCodeValidation failing while different timezone using at client application.
       double timeStamp = (int)DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1)).TotalSeconds;
       embedQuery += "&embed_server_timestamp=" + timeStamp;
       var embedDetailsUrl = "/embed/authorize?" + embedQuery + "&embed_signature=" + GetSignatureUrl(embedQuery);

       using (var client = new HttpClient())
       {
           client.BaseAddress = new Uri(embedClass.dashboardServerApiUrl);
           client.DefaultRequestHeaders.Accept.Clear();

           var result = client.GetAsync(embedClass.dashboardServerApiUrl + embedDetailsUrl).Result;
           string resultContent = result.Content.ReadAsStringAsync().Result;
           return resultContent;
       }
   }

   public string GetSignatureUrl(string message)
   {
       var encoding = new System.Text.UTF8Encoding();
       var keyBytes = encoding.GetBytes(GlobalAppSettings.EmbedDetails.EmbedSecret);
       var messageBytes = encoding.GetBytes(message);
       using (var hmacsha1 = new System.Security.Cryptography.HMACSHA256(keyBytes))
       {
           var hashMessage = hmacsha1.ComputeHash(messageBytes);
           return Convert.ToBase64String(hashMessage);
       }
   }
   }

Navigate to the Server project directory using the cd command, such as cd C:\BlazorProject\Server. Run your Blazor WebAssembly sample with the command dotnet watch run in Visual Studio Code.

Contents

Prerequisites
How to run Blazor WebAssembly sample
How the Blazor WebAssembly sample works
Steps to create new Blazor WebAssembly application to embed dashboard

Contents

Prerequisites
How to run Blazor WebAssembly sample
How the Blazor WebAssembly sample works
Steps to create new Blazor WebAssembly application to embed dashboard

Please provide additional information

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