compress：压缩koa中间件

Koa压缩 压缩Koa中间件 例子 const compress = require ( 'koa-compress' ) const Koa = require ( 'koa' ) const app = new Koa ( ) app . use ( compress ( { filter ( content_type ) { return /text/i . test ( content_type ) } , threshold : 2048 , gzip : { flush : require ( 'zlib' ) . constants . Z_SYNC_FLUSH } , deflate : { flush : require ( 'zlib' ) . constants . Z_SYNC_FLUSH , } , br :