我正在尝试使用带有 Node.js 的 IBM Watson Conversation 服务。我使用'express'来发布消息:
app.post( '/api/message', function(req, res) {
}
并打印从服务获得的消息:
conversation.message( payload, function(err, data) {
if ( err ) {
return res.status( err.code || 500 ).json( err );
}
return res.json( updateMessage( payload, data ) );
} );
我刚刚在端口 3000 上运行了应用程序。当页面没有加载时,我收到了这个错误:
_http_server.js:192
throw new RangeError(`Invalid status code: ${statusCode}`);
^
RangeError: Invalid status code: 0
at ServerResponse.writeHead (_http_server.js:192:11)
at ServerResponse._implicitHeader (_http_server.js:157:8)
at ServerResponse.OutgoingMessage.end (_http_outgoing.js:573:10)
at ServerResponse.send (C:\IBM\1.Mission\2016\conversation-simple-master(1)\
conversation-simple-master\node_modules\express\lib\response.js:204:10)
at ServerResponse.json (C:\IBM\1.Mission\2016\conversation-simple-master(1)\
conversation-simple-master\node_modules\express\lib\response.js:249:15)
at C:\IBM\1.Mission\2016\conversation-simple-master(1)\conversation-simple-m
aster\app.js:86:44
at Request._callback (C:\IBM\1.Mission\2016\conversation-simple-master(1)\co
nversation-simple-master\node_modules\watson-developer-cloud\lib\requestwrapper.
js:47:7)
at self.callback (C:\IBM\1.Mission\2016\conversation-simple-master(1)\conver
sation-simple-master\node_modules\watson-developer-cloud\node_modules\request\re
quest.js:200:22)
at emitOne (events.js:77:13)
at Request.emit (events.js:169:7)
我不认为问题出在 npm 上,请退回我的包裹......虽然这似乎是一个普遍的问题......谢谢你的帮助。