blocks|key|2390753|text|我的React也有同样的问题，我只是在package.json文件中的端口号之后添加了"/“(所以现在它是："http://localhost:5000/")。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2390754|entityMap|0|LINK|mutability|MUTABLE|url|http://localhost:5000/^0|1J|M|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I had a same problem in my React App and I fixed it by just adding "/" after the port number in package.json file (so now it's: "proxy": "<a href="http://localhost:5000/" rel="noreferrer">http://localhost:5000/</a>")

blocks|key|2390624|text|我也面临着一个类似的问题，但在Mac机器上。我把localhost改成了127.0.0.1，这对我很管用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2390625|适用于窗户：|2390626|"proxy":+{
++"/auth/google":+{
++++"target":+"localhost:5000"
++}
}|code-block|syntax|javascript|2390627|对于Mac：|2390628|"proxy":+{
++"/auth/google":+{
++++"target":+"http://127.0.0.1:5000"
++}
}|2390629|entityMap^0|O|9|10|9|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|R|$]]

I faced a similar issue but in Mac machine. I changed <code>localhost</code> to <code>127.0.0.1</code> and that worked for me.

For windows:

<pre><code>"proxy": {
 "/auth/google": {
 "target": "localhost:5000"
 }
}
</code></pre>

For Mac:

<pre><code>"proxy": {
 "/auth/google": {
 "target": "http://127.0.0.1:5000"
 }
}
</code></pre>

blocks|key|2352302|text|在您的服务器中，package.json将--ignore+client添加到“启动”或“服务器”脚本中。所以看起来是这样：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2352303|+"scripts":+{
+"start":+"node+index.js",
+"server":+"nodemon+index.js+--ignore+client"
+}|code-block|syntax|javascript|2352304|entityMap^0|L|F|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

In your server package.json add <code>--ignore client</code> to your &quot;start&quot; or &quot;server&quot; scripts. So it would look like this:
<pre><code> &quot;scripts&quot;: {
 &quot;start&quot;: &quot;node index.js&quot;,
 &quot;server&quot;: &quot;nodemon index.js --ignore client&quot;
 }
</code></pre>

blocks|key|1061710|text|在服务器目录中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1061711|npm+install+--save+http-proxy-middleware|code-block|syntax|javascript|1061712|然后在客户反应文件夹的src目录中创建一个名为:+setupProxy.js的文件。|1061713|​|1061714|📷|atomic|offset|length|1061715|1061716|然后添加以下内容|1061717|1061718|1061719|1061720|const+proxy+=+require("http-proxy-middleware");
module.exports+=+function(app)+{
++app.use(proxy("/api/**",+{+//+https://github.com/chimurai/http-proxy-middleware
++++target:+"http://localhost:5000",
++++secure:+false
++}));
};|1061721|在代理配置中，确保任何路径都与双**匹配，而不仅仅是*|1061722|注意:您不会像那样在任何其他地方都要求这个代理。|style|BOLD|1061723|注意:删除package.json中的任何其他代理设置以获得更多信息，请查看此参考文献|1061724|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/855d26fadecc9e58ed834b56fa08d01f.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/efe57aadda4b4d18fd67d6ccd0f7505a.png|2|LINK|MUTABLE|url|https://github.com/chimurai/http-proxy-middleware^0|0|0|0|0|0|1|0|0|0|0|0|0|1|1|0|0|0|0|0|7|0|0|H|13|4|2|0^^$0|@$1|2|3|4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1M|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|1N|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|1O|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|1P|8|@]|9|@$N|1Q|O|1R|1|1S]]|A|$]]|$1|P|3|J|5|6|7|1T|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1U|8|@]|9|@]|A|$]]|$1|S|3|J|5|6|7|1V|8|@]|9|@]|A|$]]|$1|T|3|L|5|M|7|1W|8|@]|9|@$N|1X|O|1Y|1|1Z]]|A|$]]|$1|U|3|J|5|6|7|20|8|@]|9|@]|A|$]]|$1|V|3|W|5|D|7|21|8|@]|9|@]|A|$E|F]]|$1|X|3|Y|5|6|7|22|8|@]|9|@]|A|$]]|$1|Z|3|10|5|6|7|23|8|@$N|24|O|25|11|12]]|9|@]|A|$]]|$1|13|3|14|5|6|7|26|8|@$N|27|O|28|11|12]]|9|@$N|29|O|2A|1|2B]]|A|$]]|$1|15|3|-4|5|6|7|2C|8|@]|9|@]|A|$]]]|16|$17|$5|18|19|1A|A|$1B|1C|1D|-4]]|1E|$5|18|19|1A|A|$1B|1F|1D|-4]]|1G|$5|1H|19|1I|A|$1J|1K]]]]

In server directory
<pre><code>npm install --save http-proxy-middleware
</code></pre>
then create a file with this name : setupProxy.js
in src directory of client react folder
<a href="https://i.stack.imgur.com/rp75v.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rp75v.png" alt="enter image description here" /></a>
then add the following
<a href="https://i.stack.imgur.com/3rjjh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3rjjh.png" alt="enter image description here" /></a>
<pre class="lang-js prettyprint-override"><code>const proxy = require(&quot;http-proxy-middleware&quot;);
module.exports = function(app) {
 app.use(proxy(&quot;/api/**&quot;, { // https://github.com/chimurai/http-proxy-middleware
 target: &quot;http://localhost:5000&quot;,
 secure: false
 }));
};
</code></pre>
In proxy configuration make sure you are matching any path
with double ** not only *
Note: you are not going to require this proxy anywhere else
just like that
Note: remove any other proxy settings in package.json
For more check this <a href="https://github.com/chimurai/http-proxy-middleware" rel="nofollow noreferrer">reference</a>

blocks|key|2352549|text|我想你还没有启动后端服务器。尝试同时启动后端和前端服务器。只需在后端和前端运行npm+start即可。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2352550|entityMap^0|13|9|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

I think You have not start your Back end server. Try start both Back end and Front end server concurrently. Just simply run <code>npm start</code> in both back end and front end.

blocks|key|2352471|text|在节点模块中包括|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2352472|{
...
++"proxy":+"http://127.0.0.1:5000"
}|code-block|syntax|javascript|2352473|在那里..。只意味着您应该将代理ip附加到它。|2352474|另外，如果您使用的是axios，那么执行axios.post('api/users')工作而不是axios.post('/api/users')。|offset|length|style|CODE|2352475|entityMap^0|0|0|0|K|N|1C|O|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@$K|U|L|V|M|N]|$K|W|L|X|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|P|$]]

In your node module include

<pre><code>{
...
 "proxy": "http://127.0.0.1:5000"
}
</code></pre>

Where the ... simply means you should append the proxy ip to it. 

Also, if you are using axios, doing <code>axios.post('api/users')</code> works and not <code>axios.post('/api/users')</code>

blocks|key|1061955|text|对于那些使用Docker的用户，如果您的docker-compose.yml看起来像：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1061956|services:
++app:
++++...
++++depends_on:
++++++-+api
++++ports:
++++++-+3000:xxxx
++++...
++api:
++++...
++++ports:
++++++-+5000:xxxx
++++...|code-block|syntax|javascript|1061957|然后，我们应该将代理URL设置为|1061958|++"proxy":+"http://host.docker.internal:5000"|1061959|entityMap^0|K|I|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

For those who are using Docker, if your <code>docker-compose.yml</code> looks like:
<pre class="lang-yaml prettyprint-override"><code>services:
 app:
 ...
 depends_on:
 - api
 ports:
 - 3000:xxxx
 ...
 api:
 ...
 ports:
 - 5000:xxxx
 ...
</code></pre>
Then we should set the proxy URL to
<pre class="lang-json prettyprint-override"><code> &quot;proxy&quot;: &quot;http://host.docker.internal:5000&quot;
</code></pre>

blocks|key|1061642|text|我也有类似的问题。问题是服务器正在监听ipv6+::1地址，代理连接到ipv4+127.0.0.1|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1061643|我将这两个地址从localhost改为127.0.0.1|1061644|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I have similar issue.
The problem was that server was listening on ipv6 ::1 address 
and the proxy was connecting to ipv4 127.0.0.1

I changed both addresses from localhost to 127.0.0.1

blocks|key|1061783|text|在"proxy":"http://localhost:PORT"中使用package.json|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1061784|在axios中，后端调用路由(如使用axios.get("api/user/getinfo")而不是axios.get("/api/user/getinfo")；)|1061785|entityMap|0|LINK|mutability|MUTABLE|url|http://localhost:PORT_NUMBER/^0|1|9|V|1|A|L|0|0|I|T|1E|U|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

Use 
"proxy":"<a href="http://localhost:PORT_NUMBER/" rel="nofollow noreferrer">http://localhost:PORT_NUMBER/</a>"
in package.json

and in axios backend call route like
use axios.get("api/user/getinfo") instead of axios.get("/api/user/getinfo");

blocks|key|2352742|text|在package.json文件中，只需在端口号之后添加"/“，它就会正常工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2352743|"proxy":+"http://localhost:5000/"|code-block|syntax|javascript|2352744|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In package.json file just add &quot;/&quot; after the port number and it should work fine.
<pre><code>&quot;proxy&quot;: &quot;http://localhost:5000/&quot;
</code></pre>

blocks|key|1061673|text|我认为服务器不能正常工作，您应该同时运行客户机和服务器，以便在package.json文件中添加以下过程|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|CODE|entityRanges|data|1061674|1)同时安装|1061675|npm+install+concurrently+--save|code-block|syntax|javascript|1061676|2)配置客户端和服务器|1061677|"server":+"nodemon+server.js",
"client":+"npm+start+--prefix+client"|1061678|3)并发配置|1061679|"dev":+"concurrently+"npm+run+server"+"npm+run+client""|1061680|entityMap^0|V|C|V|C|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|D]]|E|@]|F|$]]|$1|G|3|H|5|6|7|12|8|@]|E|@]|F|$]]|$1|I|3|J|5|K|7|13|8|@]|E|@]|F|$L|M]]|$1|N|3|O|5|6|7|14|8|@]|E|@]|F|$]]|$1|P|3|Q|5|K|7|15|8|@]|E|@]|F|$L|M]]|$1|R|3|S|5|6|7|16|8|@]|E|@]|F|$]]|$1|T|3|U|5|K|7|17|8|@]|E|@]|F|$L|M]]|$1|V|3|-4|5|6|7|18|8|@]|E|@]|F|$]]]|W|$]]

I think Server not working properly, you should run client and server concurrently for that add following procedures in <code>package.json</code> file 

1) Install concurrently

<pre><code>npm install concurrently --save
</code></pre>

2) configure client and server

<pre><code>"server": "nodemon server.js",
"client": "npm start --prefix client"
</code></pre>

3) configure concurrently 

<pre><code>"dev": "concurrently "npm run server" "npm run client""
</code></pre>

blocks|key|2390949|text|如果您不在服务器端并发使用，那么只需分别运行每个前端和后端，这样服务器端应该先运行，客户端应该最后运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2390950|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

if you are not using concurrently at your server side then simply run each front-end and back-end separately such that server side should run first and client side last.

blocks|key|2352623|text|将localhost改为[::1]解决了我的问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2352624|从这里拿来的https://forum.vuejs.org/t/proxy-error-with-vue-config-js-and-axios/110632/4?u=mahmoodvcs|2352625|entityMap|0|LINK|mutability|MUTABLE|url|https://forum.vuejs.org/t/proxy-error-with-vue-config-js-and-axios/110632/4?u=mahmoodvcs^0|1|9|C|5|0|6|2G|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@$9|V|A|W|1|X]]|E|$]]|$1|H|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

Changing <code>localhost</code> to <code>[::1]</code> solved my problem.
Taken from here <a href="https://forum.vuejs.org/t/proxy-error-with-vue-config-js-and-axios/110632/4?u=mahmoodvcs" rel="nofollow noreferrer">https://forum.vuejs.org/t/proxy-error-with-vue-config-js-and-axios/110632/4?u=mahmoodvcs</a>

blocks|key|2352288|text|如果您无法通过telnet连接到端口5000上的本地主机(如果没有安装telnet，可以下载并使用PuttY+)，这意味着服务器没有运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2352289|如果您使用的是Windows机器，请转到运行在端口5000上的服务器的package.json，并更改这一行：|2352290|"start":+"./node_modules/.bin/concurrently+\"./node_modules/.bin/nodemon\"+\"npm+run+client\"",|code-block|syntax|javascript|2352291|对此：|2352292|"start":+"./node_modules/.bin/concurrently+\"npm+run+server\"+\"npm+run+client\"",|2352293|查看您的构建消息，您应该会看到类似于以下内容的内容：|2352294|[0]+++==>+API+Server+now+listening+on+PORT+5000!
[1]+Starting+the+development+server...
[1]
[1]+Compiled+successfully!
[1]
[1]+You+can+now+view+chat+app+in+the+browser.
[1]
[1]+++Local:++++++++++++http://localhost:3000/
[1]+++On+Your+Network:++http://192.168.1.118:3000/
[1]
[1]+Note+that+the+development+build+is+not+optimized.
[1]+To+create+a+production+build,+use+yarn+build.|2352295|entityMap|0|LINK|mutability|MUTABLE|url|http://www.putty.org/^0|1D|5|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@$A|11|B|12|1|13]]|C|$]]|$1|D|3|E|5|6|7|14|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|15|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|16|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|17|8|@]|9|@]|C|$I|J]]|$1|O|3|P|5|6|7|18|8|@]|9|@]|C|$]]|$1|Q|3|R|5|H|7|19|8|@]|9|@]|C|$I|J]]|$1|S|3|-4|5|6|7|1A|8|@]|9|@]|C|$]]]|T|$U|$5|V|W|X|C|$Y|Z]]]]

If you can't connect to localhost on port 5000 via telnet (you can download and use <a href="http://www.putty.org/" rel="nofollow noreferrer">PuttY</a> if you don't have telnet installed), then that means that server isn't running.

If you're using a Windows machine, go to your package.json for the server that is running on port 5000 and change this line:

<pre><code>"start": "./node_modules/.bin/concurrently \"./node_modules/.bin/nodemon\" \"npm run client\"",
</code></pre>

To this:

<pre><code>"start": "./node_modules/.bin/concurrently \"npm run server\" \"npm run client\"",
</code></pre>

Watch your build messages and you should see something similar to the following:

<pre><code>[0] ==&gt; API Server now listening on PORT 5000!
[1] Starting the development server...
[1]
[1] Compiled successfully!
[1]
[1] You can now view chat app in the browser.
[1]
[1] Local: http://localhost:3000/
[1] On Your Network: http://192.168.1.118:3000/
[1]
[1] Note that the development build is not optimized.
[1] To create a production build, use yarn build.
</code></pre>

blocks|key|2352452|text|我的问题是试图在码头集装箱打开的情况下运行我的反应项目。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2352453|改变港口或关闭集装箱。|2352454|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

My issue was trying to run my react project with docker containers open.

Change the ports or shut down the containers.

blocks|key|2390888|text|在我的例子中，问题是我以错误的名称访问了端口，我使用的是端口，而不是SERVER_PORT，它是我正确的环境变量名。因此，这个问题意味着您的代码中有错误，在我的例子中，服务器应该运行的端口是未定义的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2390889|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In my case the problem was that I have been accessing the PORT by the wrong name, i had it PORT instead of SERVER_PORT which was my correct environment variable name. So this problem means that there is a something wrong in your code, in my case the port on which the server should be running was undefined.

blocks|key|2352590|text|这与创建-反应应用程序的默认设置有关。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2352591|我从Github问题那里找到了一个解决方案。阅读danielmahon于2018年3月15日的答复|offset|length|2352592|"proxy":+{
++++"/api":+{
++++++"target":+"https://localhost:5002",
++++++"secure":+false
++++}
++},|code-block|syntax|javascript|2352593|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/facebook/create-react-app/issues/3823^0|0|2|8|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@$D|U|E|V|1|W]]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

This has something to do with default settings of create-react-app.
I found a solution from <a href="https://github.com/facebook/create-react-app/issues/3823" rel="nofollow noreferrer">Github Issue</a>. Read the response by danielmahon on 15 Mar 2018
<pre><code>&quot;proxy&quot;: {
 &quot;/api&quot;: {
 &quot;target&quot;: &quot;https://localhost:5002&quot;,
 &quot;secure&quot;: false
 }
 },

</code></pre>

blocks|key|2391056|text|代理错误:无法代理从本地主机请求/signup+:3000到http://localhost:8282/。有关更多信息，请参见错误+(ECONNREFUSED)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2391057|我遇到了同样的问题，我只是通过重新启动两个服务器来解决这个问题，您需要运行两个服务器。|2391058|谢谢你)|2391059|entityMap|0|LINK|mutability|MUTABLE|url|http://localhost:8282/|1|https://nodejs.org/api/errors.html#errors_common_system_errors^0|U|M|0|1R|2|1|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]|$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|Z|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|10|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]]]

Proxy error: Could not proxy request /signup from localhost:3000 to http://localhost:8282/. See <a href="https://nodejs.org/api/errors.html#errors_common_system_errors" rel="nofollow noreferrer">https://nodejs.org/api/errors.html#errors_common_system_errors</a> for more information (ECONNREFUSED).
I got the same issue and I just solved it by only restart both of the server, you need to run both of the server running.
Thanks me ltr:)

blocks|key|1062066|text|尽管每个人都在努力，但这些答案对我没有任何帮助。最后，谢天谢地，我找到了这+github讨论，有人说使用node+server.js启动服务器。这个成功了。在我使用nodemon+server.js和npm+start之前。我不知道为什么这些命令不能连接到我在http://127.0.0.1:5000的代理，但是node+server.js可以。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1062067|干杯|1062068|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/plouc/mozaik/issues/118^0|1G|E|2A|H|2S|9|3M|L|4D|E|10|1|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]|$9|Y|A|Z|B|C]]|D|@$9|10|A|11|1|12]]|E|$]]|$1|F|3|G|5|6|7|13|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

None of these answers were helping me despite everyone's effort. Finally, thankfully, I found <a href="https://github.com/plouc/mozaik/issues/118" rel="nofollow noreferrer">this</a> github discussion where someone said use <code>node server.js</code> to start the server. This WORKED. Before I was using <code>nodemon server.js</code> and <code>npm start</code>. I've no idea why those commands weren't able to connect to my proxy at <code>http://127.0.0.1:5000</code> but <code>node server.js</code> could.
Cheers

blocks|key|1062095|text|如果您使用的是axios，那么请遵循以下命令。有时使用代理可能不起作用。解决这个问题有一个标准的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1062096|为此，我们需要在发送请求之前配置axios。axios有一个方法来设置baseURL+create()，在src文件夹中创建一个新的文件http.js。|offset|length|style|CODE|1062097|import+axios+from+'axios'

const+http+=+axios.create({
++baseURL:+"http://localhost:5000"
++headers:+{
+++++Accept:+"application/json",
+++++"Content-Type":+"application/json"
++}
})
export+default+http|code-block|syntax|javascript|1062098|现在开始使用axios发送请求，请使用以下命令|1062099|import+axios+from+"../../http";|1062100|编码愉快！|1062101|entityMap^0|0|17|8|1W|7|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]|$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|12|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|13|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

If you are using axios, then follow this.
Using proxy might not work sometimes. There is a standard way to solve this issue.
For that we need to configure our axios before sending requests. axios has a method to set the baseURL <code>create()</code> Create a new file <code>http.js</code> in your src folder.
<pre><code>import axios from 'axios'

const http = axios.create({
 baseURL: &quot;http://localhost:5000&quot;
 headers: {
 Accept: &quot;application/json&quot;,
 &quot;Content-Type&quot;: &quot;application/json&quot;
 }
})
export default http
</code></pre>
Now insted of using using axios for sending request, use this
<pre><code>import axios from &quot;../../http&quot;;
</code></pre>
happy coding!

blocks|key|2352790|text|在我的例子中，我将端口号从5000更改为7000，而reactjs仍然在localhost+5000上获取端口号，因为我更改了所有操作都很完美。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2352791|ReactJs取钩：|2352792|++++const+{+data,+loading,+error+}+=+useFetch(
++++"http://localhost:7000/api/hotels/countByCity?cities=Arusha,Dodoma,Mwanza,Dar-es-salaam"
++);|code-block|syntax|javascript|2352793|NodeJS服务器端口：|2352794|const+PORT+=+process.env.PORT+%7C%7C+7000;|2352795|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

In my case, I changed port number from 5000 to 7000, while reactjs was still fetching on localhost 5000, after I changed everything worked perfect
ReactJs FETCH HOOK:
<pre><code> const { data, loading, error } = useFetch(
 &quot;http://localhost:7000/api/hotels/countByCity?cities=Arusha,Dodoma,Mwanza,Dar-es-salaam&quot;
 );
</code></pre>
NodeJS server port:
<pre><code>const PORT = process.env.PORT || 7000;
</code></pre>

blocks|key|2391236|text|最近，我在等待rest函数的响应时出现了此错误，该函数不返回任何响应。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2391237|因此，您要么需要更改API实现并将一些东西发送回客户端，要么，如果没有返回响应，就不要等待响应。|2391238|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I recently got this error when waiting for a response from my rest API function which does not return any.
so you either need to change the API implementation and send something back to the client or just don't wait for a response if you are not returning any.

I am trying to create a chat app using reactJS and pusher, i am getting this error-

<blockquote>
 Could not proxy request /pusher/auth from localhost:3000 to
 <a href="http://localhost:5000" rel="noreferrer">http://localhost:5000</a> (ECONNREFUSED)
</blockquote>

in package.json file i have set proxy as-

<pre><code>"proxy": "http://localhost:5000"
</code></pre>

and my <code>localhost</code> is defined as <code>127.0.0.1</code> in <code>/etc/hosts</code> file. 
I have also checked for the port availability using <code>netstat</code>, but these all seems to be correct. Can anybody help?

Could not proxy request /pusher/auth from localhost:3000 to http://localhost:5000 (ECONNREFUSED)

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正试图用reactJS和pusher创建一个聊天应用程序，我得到了这个错误-无法从本地主机:3000到请求/pusher/auth (ECONNREFUSED)在package.json文件中，我将代理设置为-"proxy": "http://localhost:5000"我的localhost在127.0.0.1文件中被定义为127.0.0.1。我还使用netstat检查了端口可用性，但这些似

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