react-native-firebase/lib/utils/apps.js

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/**
* @flow
*/
import { NativeModules } from 'react-native';
import App from '../modules/core/app';
import INTERNALS from './internals';
import { isAndroid, isObject, isString } from './';
import type {
FirebaseModule,
FirebaseModuleAndStatics,
FirebaseModuleName,
FirebaseNamespace,
FirebaseOptions,
FirebaseStatics,
} from '../types';
const FirebaseCoreModule = NativeModules.RNFirebase;
const APPS: { [string]: App } = {};
const APP_MODULES: { [string]: { [string]: FirebaseModule } } = {};
const DEFAULT_APP_NAME = '[DEFAULT]';
export default {
DEFAULT_APP_NAME,
app(name?: string): App {
const _name = name ? name.toUpperCase() : DEFAULT_APP_NAME;
const app = APPS[_name];
if (!app) throw new Error(INTERNALS.STRINGS.ERROR_APP_NOT_INIT(_name));
return app;
},
apps(): Array<App> {
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// $FlowExpectedError: Object.values always returns mixed type: https://github.com/facebook/flow/issues/2221
return Object.values(APPS);
},
/**
*
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* @param app
* @param namespace
* @param InstanceClass
* @return {function()}
* @private
*/
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appModule<M: FirebaseModule>(
app: App,
namespace: FirebaseNamespace,
InstanceClass: Class<M>
): () => FirebaseModule {
return (serviceUrl: ?string = null): M => {
if (serviceUrl && namespace !== 'database') {
throw new Error(
INTERNALS.STRINGS.ERROR_INIT_SERVICE_URL_UNSUPPORTED(namespace)
);
}
const appOrShardName = serviceUrl || app.name;
if (!APP_MODULES[appOrShardName]) {
APP_MODULES[appOrShardName] = {};
}
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if (
isAndroid &&
namespace !== 'utils' &&
!INTERNALS.FLAGS.checkedPlayServices
) {
INTERNALS.FLAGS.checkedPlayServices = true;
app.utils().checkPlayServicesAvailability();
}
if (!APP_MODULES[appOrShardName][namespace]) {
APP_MODULES[appOrShardName][namespace] = new InstanceClass(
serviceUrl || app,
app.options
);
}
return APP_MODULES[appOrShardName][namespace];
};
},
deleteApp(name: string): Promise<boolean> {
const app = APPS[name];
if (!app) return Promise.resolve(true);
// https://firebase.google.com/docs/reference/js/firebase.app.App#delete
return app.delete().then(() => {
delete APPS[name];
return true;
});
},
/**
* Web SDK initializeApp
*
* @param options
* @param name
* @return {*}
*/
initializeApp(options: FirebaseOptions, name: string): App {
if (name && !isString(name)) {
throw new Error(INTERNALS.STRINGS.ERROR_INIT_STRING_NAME);
}
const _name = (name || DEFAULT_APP_NAME).toUpperCase();
// return an existing app if found
// todo in v4 remove deprecation and throw an error
if (APPS[_name]) {
console.warn(INTERNALS.STRINGS.WARN_INITIALIZE_DEPRECATION);
return APPS[_name];
}
// only validate if app doesn't already exist
// to allow apps already initialized natively
// to still go through init without erroring (backwards compatibility)
if (!isObject(options)) {
throw new Error(INTERNALS.STRINGS.ERROR_INIT_OBJECT);
}
if (!options.apiKey) {
throw new Error(INTERNALS.STRINGS.ERROR_MISSING_OPT('apiKey'));
}
if (!options.appId) {
throw new Error(INTERNALS.STRINGS.ERROR_MISSING_OPT('appId'));
}
if (!options.databaseURL) {
throw new Error(INTERNALS.STRINGS.ERROR_MISSING_OPT('databaseURL'));
}
if (!options.messagingSenderId) {
throw new Error(INTERNALS.STRINGS.ERROR_MISSING_OPT('messagingSenderId'));
}
if (!options.projectId) {
throw new Error(INTERNALS.STRINGS.ERROR_MISSING_OPT('projectId'));
}
if (!options.storageBucket) {
throw new Error(INTERNALS.STRINGS.ERROR_MISSING_OPT('storageBucket'));
}
APPS[_name] = new App(_name, options);
return APPS[_name];
},
/**
* Bootstraps all native app instances that were discovered on boot
*/
initializeNativeApps() {
for (let i = 0, len = FirebaseCoreModule.apps.length; i < len; i++) {
const app = FirebaseCoreModule.apps[i];
const options = Object.assign({}, app);
delete options.name;
APPS[app.name] = new App(app.name, options, true);
}
},
/**
*
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* @param namespace
* @param statics
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* @param moduleName
* @return {function(App=)}
*/
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moduleAndStatics<M: FirebaseModule, S: FirebaseStatics>(
namespace: FirebaseNamespace,
statics: S,
moduleName: FirebaseModuleName
): FirebaseModuleAndStatics<M, S> {
const getModule = (appOrUrl?: App | string): FirebaseModule => {
let _app = appOrUrl;
let _serviceUrl: ?string = null;
if (typeof appOrUrl === 'string' && namespace === 'database') {
_app = null;
_serviceUrl = appOrUrl;
}
// throw an error if it's not a valid app instance
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if (_app && !(_app instanceof App))
throw new Error(INTERNALS.STRINGS.ERROR_NOT_APP(namespace));
else if (!_app)
// default to the 'DEFAULT' app if no arg provided - will throw an error
// if default app not initialized
_app = this.app(DEFAULT_APP_NAME);
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// $FlowExpectedError: Flow doesn't support indexable signatures on classes: https://github.com/facebook/flow/issues/1323
const module = _app[namespace];
return module(_serviceUrl);
};
return Object.assign(getModule, statics, {
nativeModuleExists: !!NativeModules[moduleName],
});
},
};