https://github.com/koajs/bodyparser
https://www.npmjs.com/package/koa-bodyparser
413 Payload Too Large
https://developer.mozilla.org/zh-CN/docs/Web/HTTP/Status/413
响应状态码 413 Payload Too Large 表示请求主体的大小超过了服务器愿意或有能力处理的限度，
服务器可能会（may）关闭连接以防止客户端继续发送该请求

  1. yarn add koa-bodyparser@2

413 Request Entiry Too large

post 提交数据的时，bodyparser 限制了大小问题？
request entity too large PayloadTooLargeError: request entity too large
status code：413 Request Entiry Too large
原因：
上传文件失败，报上面的错：请求实体太大
https://stackoverflow.com/questions/52783959/nest-js-request-entity-too-large-payloadtoolargeerror-request-entity-too-larg

midway

midway 使用的 bodyparser 是纯粹的 koa-bodyparser，支持配置，在 config/config.default.ts 中

  1. exports.bodyParser = {
  2.   formLimit: '5000kb',
  3.   jsonLimit: '5000kb', // 设置为 5MB大小
  4. };

koa-bodyparse默认值

  1. exports.bodyParser = {
  2.   enableTypes: ['json', 'form', 'text', 'xml'],
  3.   encoding: '',
  4.   formLimit: '56kb', // 默认值
  5.   jsonLimit: '1mb',
  6.   textLimit: '1mb',
  7.   xmlLimit: '1mb',
  8.   strict: true,
  9.   detectJSON: null
  10. }
  12. // detectJSON
  13. app.use(bodyparser({
  14.   detectJSON: function (ctx) {
  15.     return /\.json$/i.test(ctx.path);
  16.   }
  17. }));
  • strict: true In strict mode, ctx.request.body will always be an object(or array), this avoid lots of type judging. But text body will always return string type.

express

express4.0之后的版本

  1. const express = require('express');
  2. const bodyParser = require('body-parser');
  4. app.use(bodyParser.json({limit: '10mb'}));
  5. app.use(bodyParser.urlencoded({limit: '10mb', extended: true}));

express4.0之前的版本

  1. app.use(express.json({limit: '10mb'}));
  2. app.use(express.urlencoded({limit: '10mb'}));

https://gist.github.com/Maqsim/857a14a4909607be13d6810540d1b04f
https://stackoverflow.com/questions/19917401/error-request-entity-too-large

nest.js

  1. import * as bodyParser from 'body-parser';
  2. import { AppModule } from './app.module';
  4. async function bootstrap() {
  5.   const app = await NestFactory.create(AppModule);
  6.   app.useStaticAssets(`${__dirname}/public`);
  7.   // the next two lines did the trick
  8.   app.use(bodyParser.json({limit: '50mb'}));
  9.   app.use(bodyParser.urlencoded({limit: '50mb', extended: true}));
  10.   app.enableCors();
  11.   await app.listen(3001);
  12. }
  13. bootstrap();

nginx修改

nginx有个参数client_max_body_size在限制请求实体的大小，把它改大点就好了。
{如果配置文件没有这个参数，应该会在系统里有个默认的值}

  1. 打开nginx配置文件 nginx.conf, 路径一般是：/etc/nginx/nginx.conf。
  2. 在http{}段中加入 client_max_body_size 20m。20m为允许上传的最大值，可自己决定多大。
  3. 保存后重启nginx
  1. vi /etc/nginx/nginx.conf
  2. sudo nano /etc/nginx/nginx.conf
  3. vi /usr/local/nginx/conf/nginx.conf
  5. # set client body size to 2M #
  6. client_max_body_size 2M;

https://www.cyberciti.biz/faq/linux-unix-bsd-nginx-413-request-entity-too-large/