Add reload flag on fastApi provider (#21241)

Author: paulacamargo25

src/client/debugger/extension/configuration/dynamicdebugConfigurationService.ts

@@ -69,7 +69,7 @@ export class DynamicPythonDebugConfigurationService implements IDynamicDebugConf
                 type: DebuggerTypeName,
                 request: 'launch',
                 module: 'uvicorn',
-                args: [`${fastApiPath}:app`],
+                args: [`${fastApiPath}:app`, '--reload'],
                 jinja: true,
                 justMyCode: true,
             });

src/client/debugger/extension/configuration/providers/fastapiLaunch.ts

@@ -25,12 +25,12 @@ export async function buildFastAPILaunchDebugConfiguration(
         type: DebuggerTypeName,
         request: 'launch',
         module: 'uvicorn',
-        args: ['main:app'],
+        args: ['main:app', '--reload'],
         jinja: true,
         justMyCode: true,
     };
 
-    if (!application) {
+    if (!application && config.args) {
         const selectedPath = await input.showInputBox({
             title: DebugConfigStrings.fastapi.enterAppPathOrNamePath.title,
             value: 'main.py',
@@ -44,7 +44,7 @@ export async function buildFastAPILaunchDebugConfiguration(
         });
         if (selectedPath) {
             manuallyEnteredAValue = true;
-            config.args = [`${path.basename(selectedPath, '.py').replace('/', '.')}:app`];
+            config.args[0] = `${path.basename(selectedPath, '.py').replace('/', '.')}:app`;
         }
     }
 

src/test/debugger/extension/configuration/providers/fastapiLaunch.unit.test.ts

@@ -53,7 +53,7 @@ suite('Debugging - Configuration Provider FastAPI', () => {
             type: DebuggerTypeName,
             request: 'launch',
             module: 'uvicorn',
-            args: ['main:app'],
+            args: ['main:app', '--reload'],
             jinja: true,
             justMyCode: true,
         };
@@ -73,7 +73,7 @@ suite('Debugging - Configuration Provider FastAPI', () => {
             type: DebuggerTypeName,
             request: 'launch',
             module: 'uvicorn',
-            args: ['main:app'],
+            args: ['main:app', '--reload'],
             jinja: true,
             justMyCode: true,
         };