All files / services/exit-handler exit-handler.service.ts

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import { Service } from '../../container';
import { BootstrapLogger } from '../bootstrap-logger';
import { Injector } from '../../decorators/injector/injector.decorator';
import { Observable, Subject } from 'rxjs';
 
export type NodejsEvents = 'beforeExit' | 'disconnect' | 'exit' | 'rejectionHandled' |
    'uncaughtException' | 'unhandledRejection' | 'warning' | 'message' | 'newListener' | 'removeListener';
 
export type Signals =
    'SIGABRT' | 'SIGALRM' | 'SIGBUS' | 'SIGCHLD' | 'SIGCONT' | 'SIGFPE' | 'SIGHUP' | 'SIGILL' | 'SIGINT' | 'SIGIO' |
    'SIGIOT' | 'SIGKILL' | 'SIGPIPE' | 'SIGPOLL' | 'SIGPROF' | 'SIGPWR' | 'SIGQUIT' | 'SIGSEGV' | 'SIGSTKFLT' |
    'SIGSTOP' | 'SIGSYS' | 'SIGTERM' | 'SIGTRAP' | 'SIGTSTP' | 'SIGTTIN' | 'SIGTTOU' | 'SIGUNUSED' | 'SIGURG' |
    'SIGUSR1' | 'SIGUSR2' | 'SIGVTALRM' | 'SIGWINCH' | 'SIGXCPU' | 'SIGXFSZ' | 'SIGBREAK' | 'SIGLOST' | 'SIGINFO';
 
@Service()
export class ExitHandlerService {
    errorHandler: Subject<any> = new Subject();
    @Injector(BootstrapLogger) private logger: BootstrapLogger;
 
    init() {}
 
    exitHandler(options, err) {
        this.errorHandler.next(err);
        if (options.cleanup) {
            this.logger.logExitHandler('AppStopped');
        }
        if (err) console.log(err.stack);
        if (options.exit) {
            this.logger.logExitHandler('Unhandled error rejection');
        }
    }
 
    onExitApp(events: Array<Signals | NodejsEvents>) {
        return new Observable(o => {
            process.on(<any>event, () => o.next(true));
        });
    }
 
}