feat: Allow configuration of AppMap API URL

package.json

@@ -224,7 +224,12 @@
         "appMap.applandUrl": {
           "type": "string",
           "default": "https://getappmap.com",
-          "description": "URL of an AppLand cloud instance for AppMap storage"
+          "description": "URL of AppMap"
+        },
+        "appMap.apiUrl": {
+          "type": "string",
+          "default": "https://api.getappmap.com",
+          "description": "URL of the AppMap API"
         },
         "appMap.viewConfiguration": {
           "type": "string",

src/configuration/extensionSettings.ts

@@ -1,3 +1,4 @@
+import { DefaultApiURL } from '@appland/client';
 import * as vscode from 'vscode';
 
 export default class ExtensionSettings {
@@ -27,4 +28,8 @@ export default class ExtensionSettings {
   public static get appMapCommandLineToolsPath(): string | undefined {
     return vscode.workspace.getConfiguration('appMap').get('commandLineToolsPath');
   }
+
+  public static get apiUrl(): string {
+    return vscode.workspace.getConfiguration('appMap').get('apiUrl') || DefaultApiURL;
+  }
 }

src/services/processWatcher.ts

@@ -1,6 +1,7 @@
 import * as vscode from 'vscode';
 import { ChildProcess, OutputStream, spawn, SpawnOptions } from './nodeDependencyProcess';
 import { getApiKey } from '../authentication';
+import ExtensionSettings from '../configuration/extensionSettings';
 
 export type RetryOptions = {
   // The number of retries made before declaring the process as failed.
@@ -198,6 +199,7 @@ export class ProcessWatcher implements vscode.Disposable {
     if (accessToken) {
       env.APPMAP_API_KEY = accessToken;
     }
+    env.APPMAP_API_URL = ExtensionSettings.apiUrl;
     return env;
   }