@nestjs/common/utils/is-streaming-body.util.js

Decorators, pipes, exceptions and utilities for NestJS applications: @Controller(), @Injectable(), @Body(), ValidationPipe, HttpException and more.

import { isFunction, isObject } from './shared.utils.js';
/**
 * Whether the router streams this value instead of serializing it: a web
 * `Response`, or an async iterable that is not also a thenable. `@nestjs/core`
 * has its own copy, as it may run against an older `@nestjs/common`.
 */
export function isStreamingBody(value) {
    return (isObject(value) &&
        ((isFunction(value[Symbol.asyncIterator]) && !isFunction(value['then'])) ||
            Object.prototype.toString.call(value) === '[object Response]'));
}