IMC PLAT7.3 获取接口token认证

需要根据现场提供的http接口文档进行配置，举例现场接口文档部分内容如下：

接口URL是：***.***/xxxx/h5/wx/getAccessToken

请求方式是：POST

请求体是：{"timestamp":"20231102172212","sign":"e41f57a91d6a64a371082c74229faa22","appId":"wx89a3236f5a389b88","systemId":"FREE_WIFI"}

响应结果是：

{

         "msg": "操作成功",

         "code": 200,

         "data": {

                   "accessToken": "74_U9yH3mLPqJ5vpimJvdKsaPuwTeBgDXhGNasepzdM9hyVdYRgc2FWbAcRvClsX3eblEqPr9Czy27ufZ4gpZ3gXuWyIaVpuhDAgH4y78ZkCLv2llOmAL8D4he1GF0KFSdAAAYTG",

                   "expiresIn": 2904

         }

}

则在iMC侧配置如下：

接口URL配置：***.***/xxxx/h5/wx/getAccessToken

请求方式选POST

请求体输入框配置：{"timestamp":"${timestamp}","sign":"$sign(${appId},${timestamp},FREE_WIFI,04181be3529525f1fcbd9070181c37c5bf3325c5)","appId":"${appId}","systemId":"FREE_WIFI"}

Access_Token取值：data.accessToken

Access_Token有效期取值：data.expiresIn

其中注意红字部分要替换成现场实际给的accessKey