# NodeJS
## 1. New Automatic Solution (v4.7.0 or later) ✅
Proxyman v4.7.0 or later can capture HTTP/HTTPS traffic from Python with 1-click.
* 1-click solution: No need to manually set HTTP Proxy config or trust the self-signed certificate.
* Support many NodeJS libraries: axios, got, superagent, fetch and node-fetch
### How to use:
1. Open Proxyman -> Setup Menu -> Automatic Setup
2. Click on "Open New Terminal"
3. Accept the Apple Script permission prompt if needed
4. The New Terminal app is launched -> You can start your NodeJS Backend Server, or Run scripts => Proxyman automatically captures all traffic.
5. Done ✅
Capture NodeJS Traffic
Please check out the Automatic Setup page:
{% content-ref url="/pages/8HduLQAFcllaS3GbigwH" %}
[Automatic Setup](/~/revisions/CTFzuwrlmsieJaiDVRDD/automatic-setup/automatic-setup.md)
{% endcontent-ref %}
## 2. Old Solution (Not recommended) ❌
There are common problems when using NodeJS + Proxyman:
### 1. Proxyman could not capture requests to my NodeJS Server
If you're using NodeJS to serve a localhost website (e.g ), Proxyman might not work. For example: Use ExpressJS to serve an API Server at
### Solution:
Please checkout this solution.
### 2. Proxyman could not capture HTTP requests, which are called from my NodeJS local server.
* I use [fetch](https://www.npmjs.com/package/node-fetch) or [axios](https://github.com/axios/axios) doesn't show on the Proxyman app
* Get SSL Error from HTTPS Requests
### Solution
By default, all HTTP/HTTPS Request which is called from your NodeJS library doesn't go through HTTP Proxy Server. Thus, Proxyman could not capture the traffic.
### 1. node-fetch
1. Install [global-agent](https://github.com/gajus/global-agent) package
```bash
npm install global-agent
```
2\. At the top of your NodeJS code, add the following code:
```javascript
import { bootstrap } from 'global-agent';
bootstrap();
process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = '0';
```
3\. Add this env to your current bash. Make sure Proxyman is listening at port 9090
```
export GLOBAL_AGENT_HTTP_PROXY=http://127.0.0.1:9090
```
4\. Done ✅
Run your NodeJS Script again and the HTTP/HTTPS request would appear on the Proxyman app.
#### Sample code
```javascript
import fetch from 'node-fetch';
// Setup global-agent
import { bootstrap } from 'global-agent';
bootstrap();
process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = '0';
// fetch the data
const response = await fetch('https://httpbin.org/get?id=123');
const data = await response.json();
// Done
console.log(data);
```
### 2. Axios
According to Axios Documentation, we can simply provide the HTTP\_PROXY and HTTPS\_PROXY environment.
1. Click on the Proxyman Status Menu
2. Copy Shell Command
3. Open the Terminal and run the paste content: For example export https\_proxy= http\_proxy=
4. On the same Terminal -> Start your NodeJS Server with axios.
5. Axios will proxy the traffic to Proxyman.
6. Done ✅
### 3. I use different NodeJS Library
If you're not using fetch or axios, the configuration might be different. Please check out your lib Document to see how to set the proxy and trust the Proxyman certificate.
* Discussion at
---
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