How to switch between Salesforce DX orgs/projects when using Visual Studio Code

Question

BACKGROUND

Imagine you're working on 2-3 Salesforce projects each with a different target Orgs (sandboxes for different companies).

You're actively working on project 1 (coding, running tests, deploy source to the org etc) and in parallel to this, you need to make a couple of tweaks to project 2 and project 3 during the same time period.

Therefore you have 3 instances of Visual Studio Code open.

I realise I could run this command to tell SFDX which org is the default

sfdx force:config:set defaultusername=ALIAS_NAME

or

sfdx force:config:set defaultusername=name@example.com

QUESTION

Is there a setting in the project-scratch-def.json that will tell Visual Studio Code which Org it should run the Salesforce DX against?

Answer 1

When you run sfdx force:config:set the value is set at the project level unless you use the -g flag. So running sfdx force:config:set defaultusername=alias in a project folder will make that the default org for the project and the commands that you run in vscode will respect that.