KOA 学习（八） koa-bodyparser

此控件支持Josn,form,text类型

用法

var Koa = require('koa');
var bodyParser = require('koa-bodyparser');

var app = new Koa();
app.use(bodyParser());

app.use(async ctx => {
  // the parsed body will store in ctx.request.body
  // if nothing was parsed, body will be an empty object {}
  ctx.body = ctx.request.body;
});

参数：

disableBodyParser，可以动态设置不转换

app.use(async (ctx, next) => {
  if (ctx.path === '/disable') ctx.disableBodyParser = true;
  await next();
});
app.use(bodyparser());

onerror，用户化设置转换出错时的处理

app.use(bodyparser({
  onerror: function (err, ctx) {
    ctx.throw('body parse error', 422);
  }
}));

但是如果想要解析multipart/form-data类型,可以用koa-multer

const Koa = require('koa');
const route = require('koa-route');
const multer = require('koa-multer');

const app = new Koa();

app.user(multer());

app.user(function *(){
　　this.body = this.req.body;
})