runner.ts

class Runner {
    public readonly targetRequests: number;
    private _requests = 0;

    constructor(targetRequests: number) {
        this.targetRequests = targetRequests;
    }

    public async run(): Promise<void> {
        while (this._requests < this.targetRequests) {
            await invoke();
            this._requests++;
        }
    }

    public static async run(targetRequests: number): Promise<Runner> {
        const runner = new Runner(targetRequests);
        await runner.run();
        return runner;
    }
}

const promises = [];
const runners: number = 100;
const requestsPerRunner: number = 100;
for (let i = 0; i < 10; i++) {
    promises.push(Runner.run(requestsPerRunner))
}
await Promise.all(promises);