`firebase init` no longer requires login if no project is selected #9251

fredzqm · 2025-10-03T02:41:44Z

Today, firebase init requires firebase login. This is a reasonable requirement for most use cases.

However, if you want to try out the emulator experience without a project, login shouldn't be necessary theoretically.

This PR supports firebase init --project demo-no-project, which relax the login requirement and skips the project selection.

The FDC Data Connect extensions can show "run init" button in zero state with no login and no project connected.
Developers can setup the local emulator and try things out quickly.

gemini-code-assist · 2025-10-03T02:41:59Z

Summary of Changes

Hello @fredzqm, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces significant changes to the Firebase CLI and its VS Code extension to support a more streamlined and accessible emulator experience. By allowing firebase init to run without requiring a user login or a specific Firebase project association (via a new --project demo-no-project flag), developers can now quickly spin up and experiment with the Firebase emulators without the initial overhead of authentication and project setup. This enhances the developer onboarding and experimentation flow, especially for those new to Firebase or wanting to test features in isolation.

Highlights

Loginless firebase init: The firebase init command no longer strictly requires prior authentication, enabling a loginless setup for emulator use cases.
Projectless firebase init: Introduces a special --project demo-no-project flag for firebase init that allows skipping project association and login, facilitating a quick emulator experience.
VS Code UI Adjustment: The VS Code extension UI (SidebarApp.tsx) now renders content regardless of user login status, aligning with the new loginless emulator experience.

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Code Review

This pull request introduces support for a project-less and login-less emulator experience in VS Code by allowing firebase init to run with a placeholder project. The changes look good and align with the goal, but I found one issue where the wrong option property was being checked, which would prevent the feature from working correctly. My review includes a suggestion to fix this.

src/init/features/project.ts

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

fredzqm · 2025-10-03T03:34:59Z

@joehan Hope you are less busy today.

Wonder what's your take on this.

There are many ways (interactive & non-interactive) to skip project setup in Firebase init. Though login is always required.

It's reasonable to expect FDC emulator experience to work e2e without login and project.

Given our prior art to use demo-no-project, do you think we can use it to skip both auth and project in init?

joehan · 2025-10-03T16:57:49Z

@joehan Hope you are less busy today.

Wonder what's your take on this.

There are many ways (interactive & non-interactive) to skip project setup in Firebase init. Though login is always required.

It's reasonable to expect FDC emulator experience to work e2e without login and project.

Given our prior art to use demo-no-project, do you think we can use it to skip both auth and project in init?

I think this is a totally valid use case! In general, init shouldn't require auth unless you choose a project, and if there is no project/user, it should just write files and skip any provisioning. This current implementation seems quite laser focused on the VSCE use case, but i'd prefer to expand it to cover all flows.

src/init/features/project.ts

fredzqm · 2025-10-03T21:13:01Z

src/init/features/project.spec.ts

-        expect(prompt.select).to.be.calledOnce;
-        expect(prompt.input).to.be.calledTwice;
-        expect(createFirebaseProjectStub).to.be.not.called;
-      });


Still work. The validation is at prompt layer.

fredzqm · 2025-10-03T21:14:53Z

src/init/features/project.spec.ts

-        expect(prompt.select).to.be.calledOnce;
-        expect(promptAvailableProjectIdStub).to.be.calledOnce;
-        expect(addFirebaseProjectStub).to.be.not.called;
-      });


This still works. I moved the validation into promptAvailableProjectId.

CHANGELOG.md

fredzqm added 3 commits October 2, 2025 18:40

Show init button even if not login yet

fadefbe

compile

b4d470c

Merge remote-tracking branch 'origin/master' into fz/fdc-no-login-init

61953c4

github-project-automation bot added this to [Cloud] Extensions + Functions Oct 3, 2025

gemini-code-assist bot reviewed Oct 3, 2025

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fredzqm and others added 3 commits October 2, 2025 19:43

changelog

7b5c744

m

86ff3a7

Update src/init/features/project.ts

8129202

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Merge branch 'master' into fz/fdc-no-login-init

589be1e

joehan reviewed Oct 3, 2025

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fredzqm added 7 commits October 3, 2025 13:00

move auth after project options

c180607

move auth after project options

0ef83e2

Merge remote-tracking branch 'origin/master' into fz/fdc-no-login-init

61c1e65

changelog

da9065c

tests

fe8e0f0

fix tests

4743e37

m

2dd41c8

fredzqm commented Oct 3, 2025

View reviewed changes

fredzqm added 2 commits October 6, 2025 08:55

Merge remote-tracking branch 'origin/master' into fz/fdc-no-login-init

b6f7436

add metrics

edbb6df

fredzqm force-pushed the fz/fdc-no-login-init branch from d362d3d to edbb6df Compare October 6, 2025 15:56

joehan approved these changes Oct 6, 2025

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joehan and others added 2 commits October 6, 2025 10:00

Update CHANGELOG.md

63658b4

Merge branch 'master' into fz/fdc-no-login-init

9e1bff5

fredzqm enabled auto-merge (squash) October 6, 2025 18:23

fredzqm disabled auto-merge October 6, 2025 18:23

fredzqm changed the title ~~[VS Code] Support projectless & loginless emulator experience~~ firebase init no longer requires login if no project is selected Oct 6, 2025

fredzqm enabled auto-merge (squash) October 6, 2025 18:24

fredzqm merged commit 8cf3685 into master Oct 6, 2025
60 of 61 checks passed

fredzqm deleted the fz/fdc-no-login-init branch October 6, 2025 18:48

github-project-automation bot moved this from Approved [PR] to Done in [Cloud] Extensions + Functions Oct 6, 2025

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`firebase init` no longer requires login if no project is selected #9251

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firebase init no longer requires login if no project is selected #9251

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`firebase init` no longer requires login if no project is selected #9251

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