added option to setHeader in plugin context

packages/altair-app/src/app/modules/altair/services/plugin/context/plugin-context.service.spec.ts

@@ -107,6 +107,27 @@ describe('PluginContextService', () => {
       });
     });
 
+    describe('setHeader', () => {
+      it('should dispatch set header action', async () => {
+        const ctx = createContext();
+        const windowState = await ctx.app.getCurrentWindowState();
+        const currentWindowId = windowState!.windowId;
+        await ctx.app.setHeader(currentWindowId, 'x-test-header', 'test-value');
+        expect(mockStore.dispatch).toHaveBeenCalledWith(
+          expect.objectContaining({
+            payload: {
+              headers: [
+                { enabled: true, key: '', value: '' },
+                { enabled: true, key: 'x-test-header', value: 'test-value' },
+              ],
+            },
+            type: 'SET_HEADERS',
+            windowId: 'def-456',
+          })
+        );
+      });
+    });
+
     describe('createPanel', () => {
       it('should return new panel', () => {
         const ctx = createContext();

packages/altair-app/src/app/modules/altair/services/plugin/context/plugin-context.service.ts

@@ -3,6 +3,7 @@ import { Store } from '@ngrx/store';
 import {
   CreateActionOptions,
   CreatePanelOptions,
+  PluginContext,
   PluginContextGenerator,
   PluginWindowState,
 } from 'altair-graphql-core/build/plugin/context/context.interface';
@@ -24,6 +25,7 @@ import * as fromRoot from '../../../store';
 
 import * as queryActions from '../../../store/query/query.action';
 import * as variablesActions from '../../../store/variables/variables.action';
+import * as headersActions from '../../../store/headers/headers.action';
 import * as localActions from '../../../store/local/local.action';
 import * as settingsActions from '../../../store/settings/settings.action';
 
@@ -32,6 +34,7 @@ import { first, take } from 'rxjs/operators';
 import { ThemeRegistryService } from '../../../services/theme/theme-registry.service';
 import { NotifyService } from '../../../services/notify/notify.service';
 import { SubscriptionProviderRegistryService } from '../../subscriptions/subscription-provider-registry.service';
+import { headerListToMap, headerMapToList } from '../../../utils/headers';
 import {
   AltairPanel,
   AltairPanelLocation,
@@ -54,7 +57,7 @@ export class PluginContextService implements PluginContextGenerator {
     private notifyService: NotifyService
   ) {}
 
-  createContext(pluginName: string, plugin: AltairPlugin) {
+  createContext(pluginName: string, plugin: AltairPlugin): PluginContext {
     const self = this;
     const log = (msg: string) => debug.log(`PLUGIN[${pluginName}]: ${msg}`);
     const eventBus = this.pluginEventService.group();
@@ -161,6 +164,20 @@ export class PluginContextService implements PluginContextGenerator {
             new queryActions.SendIntrospectionQueryRequestAction(windowId)
           );
         },
+        async setHeader(windowId, key, value) {
+          log(`setting header: ${key}`);
+          const state = await this.getWindowState(windowId);
+          const headers = state?.headers ?? [];
+          const obj = headerListToMap(headers);
+
+          obj[key] = value;
+          self.store.dispatch(
+            new headersActions.SetHeadersAction(
+              { headers: headerMapToList(obj) },
+              windowId
+            )
+          );
+        },
         addSubscriptionProvider(providerData: SubscriptionProviderData) {
           log(`adding subscription provider: ${providerData.id}`);
           self.subscriptionProviderRegistryService.addProviderData(

packages/altair-core/src/plugin/context/context.interface.ts

@@ -67,6 +67,7 @@ export interface PluginContext {
     createWindow(data: ExportWindowState): void;
     setQuery(windowId: string, query: string): void;
     setVariables(windowId: string, variables: string): void;
+    setHeader(windowId: string, key: string, value: string): void;
     setEndpoint(windowId: string, url: string): void;
     addSubscriptionProvider(providerData: SubscriptionProviderData): void;
     executeCommand(): void; // TODO: To be defined