[英]Using Express JS to make API external CALL (avoiding cors problem)
[英]CORS Problem when using two express application
我正在嘗試在Windows Server 2012上使用兩台Node.js Express服務器,每台服務器具有不同的FQDN(example1.b.br | exemple2.b.br)。 這些應用程序是兩個Watson Chatbot,因此它們都需要使用路由/會話與IBM進行通信。
一個聊天機器人使用端口443,另一個聊天機器人使用端口8443。
問題是:每個服務器都位於不同的目錄中,並且有自己的子目錄“ public”,但是當我執行兩個服務器時,使用端口8443的服務器使用端口443服務器的“ public”子目錄。
聊天機器人
Chatbot1
node_modules
上市
Chatbot1 app.js:
const AssistantV1 = require('watson-developer-cloud/assistant/v1');
const express = require('express');
const bodyParser = require('body-parser');
const http = require('http');
const https = require('https');
var fs = require('fs');
var httpApp = express();
var workspace;
var options = {
key: fs.readFileSync('certificates/key.pem'),
cert: fs.readFileSync('certificates/server.crt')
};
const app = express();
app.use(bodyParser.json());
app.use(express.static('./public'));
const port = 80;
const httpsPort = 8443;
httpApp.set('port', process.env.PORT || 80);
const assistant = new AssistantV1({
username: 'XXXXX',
password: 'XXXXX',
url: 'https://gateway.watsonplatform.net/assistant/api/',
version: '2018-02-16'
});
workspace = 'XXXXXXX';
app.post('/conversation/', (req, res) => {
const { text, context = {} } = req.body;
const params = {
input: { text },
workspace_id: workspace,
context,
};
assistant.message(params, (err, response) => {
if (err) res.status(500).json(err);
res.json(response);
});
});
try{
//var httpServer = http.createServer(httpApp, app).listen(port);
var httpsServer = https.createServer(options, app).listen(httpsPort);
//httpServer.listen(port, () => console.log(`Running on port ${port}`));
httpsServer.listen(httpsPort, 'exemple1.b.br', () => console.log(`HTTPS Running on port ${httpsPort}`));
console.log(`---------------------------------`);
console.log(`-----------ROBO INICIADO---------`);
console.log(`---------------------------------`);
}catch(err){
console.log(`*********************************`);
console.log(`*****Falha ao iniciar o Robo*****`);
console.log(`*********************************`);
console.log(err);
} */
Chatbot2 app.js:
const AssistantV1 = require('watson-developer-cloud/assistant/v1');
const express = require('express');
const bodyParser = require('body-parser');
const http = require('http');
const https = require('https');
var fs = require('fs');
var httpApp = express();
var workspace;
var options = {
key: fs.readFileSync('certificates/key.pem'),
cert: fs.readFileSync('certificates/server.crt')
};
const app = express();
app.use(bodyParser.json());
app.use(express.static('./public'));
const port = 80;
const httpsPort = 443;
httpApp.set('port', process.env.PORT || 80);
const assistant = new AssistantV1({
username: 'xxxxxxx',
password: 'xxxxxx',
url: 'https://gateway.watsonplatform.net/assistant/api/',
version: '2018-02-16'
});
workspace = 'XXXXXXX'
app.post('/conversation/', (req, res) => {
const { text, context = {} } = req.body;
const params = {
input: { text },
workspace_id: workspace,
context,
};
assistant.message(params, (err, response) => {
if (err) res.status(500).json(err);
res.json(response);
});
});
try{
var httpsServer = https.createServer(options, app).listen(httpsPort);
httpsServer.listen(httpsPort, 'exemple2.b.br', () => console.log(`HTTPS Running on port ${httpsPort}`));
console.log(`---------------------------------`);
console.log(`-----------ROBO INICIADO---------`);
console.log(`---------------------------------`);
}catch(err){
console.log(`*********************************`);
console.log(`*****Falha ao iniciar o Robo*****`);
console.log(`*********************************`);
}
如何“強制”服務器使用其自己的子目錄?
“問題解決了。
實際上,這是我缺乏有關FQDN實際工作方式的研究,而且還應歸咎於防病毒。
example2.b.br的網址中不需要“:443”,因為該端口是HTTPS的默認端口。 但是當我使用example1.b.br時,它在( https://example1.b.br:8443 )后需要“:8443”。
至少這個簡單的錯誤使我了解了這一細節。
之后,我發現服務器防病毒軟件阻止了某些文件。 在端口上創建僅通過Intranet進行通信的異常后,問題得以解決。
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