Introduction

As SharePoint Framework (SPFx) Solutions are gaining popularity, it is important for developers to know how to debug the SPFx solutions. This article provides steps on “How to debug SharePoint Framework (SPFx) Solution”.

Getting Started

 Open solution

Open the SPFx solution which requires debugging using Visual Studio Code. (In this article, a sample OOTB hello world web part is taken as a reference.)

 Download Debugger for Chrome Visual Studio Code Extension

Inside the Visual Code, under Extensions look for Google Chrome debugger and install Debugger for Chrome.

 Click Reload to activate it.

 Set Breakpoint.

Here, for example, a breakpoint is set on render function.

 Terminal

Inside the Visual Code, click View -> Integrated Terminal.

 GUlp

Under Terminal tab, run gulp serve --nobrowser

Configure launch.json file

 Open file explorer and inside the SPFx solution, expand .vscode folder and open launch.json

 

 Replace code

Replace the content inside launch.json with below code and also replace the URL with actual Tenant URL for e.g. "url": "https://ramakrishnan.sharepoint.com/_layouts/workbench.aspx", inside Hosted workbench tag.

{
 /**
 * Install Chrome Debugger Extension for Visual Studio Code to debug your components with the
 */
 "version": "0.2.0",
 "configurations": [{
 "name": "Local workbench",
 "type": "chrome",
 "request": "launch",
 "url": "https://localhost:4321/temp/workbench.html",
 "webRoot": "${workspaceRoot}",
 "sourceMaps": true,
 "sourceMapPathOverrides": {
 "webpack:///../../../src/*": "${webRoot}/src/*",
 "webpack:///../../../../src/*": "${webRoot}/src/*",
 "webpack:///../../../../../src/*": "${webRoot}/src/*"
 },
 "runtimeArgs": [
 "--remote-debugging-port=9222"
 ]
 },
 {
 "name": "Hosted workbench",
 "type": "chrome",
 "request": "launch",
 "webRoot": "${workspaceRoot}",
 "sourceMaps": true,
 "sourceMapPathOverrides": {
 "webpack:///../../../src/*": "${webRoot}/src/*",
 "webpack:///../../../../src/*": "${webRoot}/src/*",
 "webpack:///../../../../../src/*": "${webRoot}/src/*"
 },
 "runtimeArgs": [
 "--remote-debugging-port=9222",
 "-incognito"
 ]
 }
 ]
}
or copy the content from

https://docs.microsoft.com/en-us/sharepoint/dev/spfx/debug-in-vscode#create-debug-configuration-for-hosted-workbench

 Run debug

Press F5 or click Start Debugging

Local workbench

Local workbench is launched in Chrome browser and once the web part is added and edited.

 

 Breakpoint is being hit. In this way, debugging of SPFx solution can be performed using local workbench.

Stop the debugging (Shift+F5)

  Switch to hosted workbench

Now run the solution to the actual SharePoint Context. For this, switch to Hosted workbench and start debugging.

 

Sign in to the portal

Add and Edit SPFx web part.

Breakpoint is hit displaying actual SharePoint Context.

Conclusion

Therefore, by following the above steps, developers can debug SharePoint Framework solution with ease./p>

References