sucls / images Goto Github PK

const koaStatic = require('koa-static');
const mount = require('koa-mount');

app.use(mount('/public' koaStatic(__dirname , 'public')));

const router = new Router();
router.get('/', (ctx, next)=>{
    // ...
})

app.use(router.routes());
app.use(router.allowedMethods());

app.use(views(path.join(__dirname, 'views'),{
  extension:'ejs'
}));

router.get('/', (ctx, next)=>{
    // ...
    const props = { ... };
    ctx.render('index',{ props })
})

const proxy = require('koa2-proxy-middleware');

app.use(proxy({
  targets: {
    '/api/(.*)': {
        target: 'http://target/', //需要代理的地址
        changeOrigin: true,
        pathRewrite: { 	
            '/api': ""
        }
    }
  }
}))

    // const readStream = ctx.req.pipe(sharp());
    // const writeStream = readStream.pipe(ctx.res);
    // // 设置图片质量为70%
    // await sharp(readStream).resize(500).toFile(writeStream, { quality: 50 });

app.use(async (ctx,next)=>{
  ctx.type = 'png';
  ctx.body = await sharp(imagePath).resize(500).png({compressionLevel: 5}).toBuffer();
})

const compress = require('koa-compress');

app
  .use(compress({
    filter: mimeType=> /javascript/.test(mimeType),
    threshold: 1024,
    gzip: true
  }))

const  history = require('koa2-connect-history-api-fallback');

app.use(history({ 
     whiteList: ['/api']
 }));

const bodyParser = require('koa-bodyparser');

app.use(bodyParser());

app.use((ctx,next)=>{
    const body = ctx.request.body;
    await next();
})

const json = require('koa-json');

app.use(json());