sofa node作为客户端，调用使用hessian4的版本的服务端，出现异常

[ghost]

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服务端使用默认hessian3序列化版本，用node客户端去调用服务端，服务端可以正常接收请求，并返回， 但是当服务端hessian版本换成4的话，使用原来的node代码去调用的时候，出现异常，服务端未收到请求，我猜是序列化的问题，以下是错误日志： ，寻求专业解答。

[gxcsoccer]

目前 node 客户端不支持 hessian4，后面会支持的

[trexguo]

计划什么时候支持呢？

[gxcsoccer]

5月底吧，抽空搞下

[gxcsoccer]

https://github.com/sofastack/sofa-bolt-node/pull/11

这个合并以后支持

const protocol = require('sofa-bolt-node');
protocol.setHessianVersion('4.0');

const { RpcClient } = require('sofa-rpc-node').client;

const client = new RpcClient({
  logger: console,
  protocol,
});

[gxcsoccer]

安装 egg-sofa-rpc@3.0.0

// config.default.js

exports.rpc = {
  hessianVersion: '4.0',
};