How to build a VSTS extension in Visual Studio 2017. The post build event configured in package.json doesn't work from Visual Studio.
Only the Command npm run build triggers the build and postbuild events. I want vsix file to be created on building the VisualStudio 2017 project.
We cannot build directly to generate the vsix file in VS. Just as you said we can only trigger the postbuild events to call the command tfx extension create --manifest-globs vss-extension.json to package it.
To create TFS/VSTS extensions, you can refer to this article for detials :Create your first extension with Visual Studio
To package as the vsix file, please see Packaging and publishing - Package
If you mean create Visual Studio VSIX Package, then you can reference below articles:
