When a dashboard reads data from a protected JSON endpoint, authentication headers can be attached in the onBeginProcessData event.

In Angular.
import { Component } from "@angular/core";
import { Viewer, Stimulsoft } from "stimulsoft-dashboards-js-angular/viewer";

@Component({
    imports: [Viewer],
    template: `<sti-viewer [report]="report" [options]="options"></sti-viewer>`
})
export class Example {
    report: Stimulsoft.Report.StiReport;
    options: Stimulsoft.Viewer.StiViewerOptions;

    constructor() {
        this.report = new Stimulsoft.Report.StiReport();
        this.report.loadFile("Dashboards/OrdersUrl.mrt");

        this.report.onBeginProcessData = function (args) {
            if (args.database === "JSON" && args.command === "GetData") {
                args.headers.push({ key: "X-Auth-Token", value: "*YOUR TOKEN*" });
            }
        };

        this.options = new Stimulsoft.Viewer.StiViewerOptions();
        this.options.appearance.fullScreenMode = true;
    }
}

How it works. The engine sends the headers with its JSON fetch, so the dashboard can read endpoints behind token protection.
Auf dem Screenshot unten Sie können das Ergebnis des Beispiel-Codes ansehen:

Supply Custom Headers for JSON Database

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