Access Firebase site id

Introduction

A short blog post to outline how to access the site identifier associated with a Firebase project.

Access Site Identifier

1. Accessing a list of sites

   To access a list of sites you can use the following command

   1firebase hosting:sites:list
   

2. The above command also supports exporting the list as json

   1firebase hosting:sites:list --json
   

   In the above the defaultUrl value represents the fully qualified site identifier

Access a specific Site Id

The firebase deploy command for hosting requires the site id to be specified.

In the example below, I prefix my sites with [ENV]-[PROJECT_ID] e.g. dev/test/prod. So the prefix I use is set to match that qualifier. Amend the prefix to whatever you use for your site identifier.

To access this information from the above, you can use the following:

1SITE_ID=$(firebase hosting:sites:list --json | jq -r '.result.sites[] | select(.defaultUrl | startswith("https://dev-")) | .defaultUrl' | sed 's/https:\/\///' | sed 's/\.web\.app$//')

The above command does a couple of things:

• Gets a list of sites as JSON
• Uses JQ to access a value matching the prefix https://dev-
• Removes the prefix https://
• Removes the postfix .web.app

The result is the matching site identifier which can then be used in the firebase deploy command e.g.:

1firebase deploy --only hosting:$SITE_ID