# Services : Firebase : Files
## Overview
```
HOME/.cache/firebase/emulators/cloud-firestore-emulator-v1.19.7.jar
HOME/.cache/firebase/emulators/firebase-database-emulator-v4.11.2.jar
HOME/.cache/firebase/emulators/ui-v1.11.8/
HOME/.config/configstore/firebase-tools.json
HOME/.config/configstore/update-notifier-firebase-tools.json
PROJ/.firebaserc
PROJ/firebase.json
Private Key aka Firebase Certificate
(ex: myproject-a1b2c-firebase-adminsdk-d9t3q-0833842cd6.json)
```
#### Originating Commands
```
firebase login # creates ~/.config/configstore/firebase-tools.json
# first user in obj["user", "tokens"]
firebase login:add # authenticate another account >> firebase-tools.json
# additional users in obj["additionalAccounts"][n]["user, "tokens]
firebase init # create Firebase project files in local dir
firebase init emulators # downloads emulator files to .cache/firebase/emulators/
```
## Example Contents
#### ~/.config/configstore/firebase-tools.json
```json
{
"motd": {
"cloudBuildErrorAfter": 1594252800000,
"cloudBuildWarnAfter": 1590019200000,
"defaultNode10After": 1594252800000,
"minVersion": "3.0.5",
"node8DeploysDisabledAfter": 1613390400000,
"node8RuntimeDisabledAfter": 1615809600000,
"node8WarnAfter": 1600128000000,
"fetched": 1715008657066
},
"usage": true,
"analytics-uuid": "aa60827c-d71f-4080-b12a-cf54f04421c1",
"user": {
"iss": "accounts.google.com",
"azp": "563584335869-fgrhgmd47bqnekij5i8b5pr03ho849e6.apps.googleusercontent.com",
"aud": "563584335869-fgrhgmd47bqnekij5i8b5pr03ho849e6.apps.googleusercontent.com",
"sub": "102674923576757147409",
"email": "
[email protected]",
"email_verified": true,
"at_hash": "6KAqPOezWJ9DkPQ96eZNuw",
"iat": 1714762571,
"exp": 1714766171
},
"tokens": {
"expires_at": 1715012279969,
"refresh_token": "1//05H...93-chars...myA",
"scopes": [],
"access_token": "ya2...219-chars...178",
"expires_in": 3599,
"scope": "https://www.googleapis.com/auth/cloud-platform https://www.googleapis.com/auth/cloudplatformprojects.readonly https://www.googleapis.com/auth/userinfo.email https://www.googleapis.com/auth/firebase openid",
"token_type": "Bearer",
"id_token": "eyJ...894-chars...KMw"
},
"additionalAccounts": [
{
"user": {
"iss": "accounts.google.com",
"azp": "563584335869-fgrhgmd47bqnekij5i8b5pr03ho849e6.apps.googleusercontent.com",
"aud": "563584335869-fgrhgmd47bqnekij5i8b5pr03ho849e6.apps.googleusercontent.com",
"sub": "116268402001216398674",
"hd": "somecompany.io",
"email": "
[email protected]",
"email_verified": true,
"at_hash": "9bGE7GokbudlhjB-iPmDXA",
"iat": 1714766149,
"exp": 1714769749
},
"tokens": {
"expires_at": 1714769748604,
"access_token": "ya2...218-chars...177",
"expires_in": 3599,
"refresh_token": "1//05t...94-chars...7Cg",
"scope": "https://www.googleapis.com/auth/firebase https://www.googleapis.com/auth/userinfo.email https://www.googleapis.com/auth/cloudplatformprojects.readonly https://www.googleapis.com/auth/cloud-platform openid",
"token_type": "Bearer",
"id_token": "eyJ...931-chars...Dcw"
}
}
],
"activeAccounts": {
"/home/ofer/src/tmp/firebase": "
[email protected]"
},
"activeProjects": {
"/home/ofer/src/tmp/firebase": "foobar-7a653"
}
}
```
#### ~/.config/configstore/update-notifier-firebase-tools.json
```json
{
"optOut": false,
"lastUpdateCheck": 1715008656060
}
```
#### .firebaserc
```json
{
"projects" : {
"default" : "myproject-a1b2c"
}
}
```
#### firebase.json
Set host to "0.0.0.0" to bind to IPv4 + IPv6 — needed inside Docker container.
```json
{
"emulators" : {
"ui" : {
"enabled" : true,
"host" : "0.0.0.0",
"port" : 9101
},
"auth" : {
"host" : "0.0.0.0",
"port" : 9102
},
"database" : {
"host" : "0.0.0.0",
"port" : 9103
},
"firestore" : {
"host" : "0.0.0.0",
"port" : 9104
},
"singleProjectMode" : true
}
}
```
#### Private Key aka Firebase Certificate
```json
{
"type" : "service_account",
"project_id" : "myproject-a1b2c",
"private_key_id" : "083...34-chars...d92",
"private_key" : "-----BEGIN PRIVATE KEY-----\nMII...1668-chars...4SH\n-----END PRIVATE KEY-----\n",
"client_email" : "
[email protected]",
"client_id" : "104...15-chars...200",
"auth_uri" : "https://accounts.google.com/o/oauth2/auth",
"token_uri" : "https://oauth2.googleapis.com/token",
"auth_provider_x509_cert_url" : "https://www.googleapis.com/oauth2/v1/certs",
"client_x509_cert_url" : "https://www.googleapis.com/robot/v1/metadata/x509/firebase-adminsdk-d9t3q%40myproject-a1b2c.iam.gserviceaccount.com",
"universe_domain" : "googleapis.com"
}
```