🔧 fix: Axios Proxy Usage And Bump mongoose (#6298)

* fix: bump mongoose to fix nested schema errors

* fix: Enhance Axios instance creation with improved proxy handling and error logging

* fix: Refactor Axios instance creation and remove proxy handling from file upload functions

* fix: Update proxy configuration in Axios instance creation and add unit tests

api/config/index.spec.js

@@ -0,0 +1,126 @@
+const axios = require('axios');
+const { createAxiosInstance } = require('./index');
+
+// Mock axios
+jest.mock('axios', () => ({
+  interceptors: {
+    request: { use: jest.fn(), eject: jest.fn() },
+    response: { use: jest.fn(), eject: jest.fn() },
+  },
+  create: jest.fn().mockReturnValue({
+    defaults: {
+      proxy: null,
+    },
+    get: jest.fn().mockResolvedValue({ data: {} }),
+    post: jest.fn().mockResolvedValue({ data: {} }),
+    put: jest.fn().mockResolvedValue({ data: {} }),
+    delete: jest.fn().mockResolvedValue({ data: {} }),
+  }),
+  get: jest.fn().mockResolvedValue({ data: {} }),
+  post: jest.fn().mockResolvedValue({ data: {} }),
+  put: jest.fn().mockResolvedValue({ data: {} }),
+  delete: jest.fn().mockResolvedValue({ data: {} }),
+  reset: jest.fn().mockImplementation(function () {
+    this.get.mockClear();
+    this.post.mockClear();
+    this.put.mockClear();
+    this.delete.mockClear();
+    this.create.mockClear();
+  }),
+}));
+
+describe('createAxiosInstance', () => {
+  const originalEnv = process.env;
+
+  beforeEach(() => {
+    // Reset mocks
+    jest.clearAllMocks();
+    // Create a clean copy of process.env
+    process.env = { ...originalEnv };
+    // Default: no proxy
+    delete process.env.proxy;
+  });
+
+  afterAll(() => {
+    // Restore original process.env
+    process.env = originalEnv;
+  });
+
+  test('creates an axios instance without proxy when no proxy env is set', () => {
+    const instance = createAxiosInstance();
+
+    expect(axios.create).toHaveBeenCalledTimes(1);
+    expect(instance.defaults.proxy).toBeNull();
+  });
+
+  test('configures proxy correctly with hostname and protocol', () => {
+    process.env.proxy = 'http://example.com';
+
+    const instance = createAxiosInstance();
+
+    expect(axios.create).toHaveBeenCalledTimes(1);
+    expect(instance.defaults.proxy).toEqual({
+      host: 'example.com',
+      protocol: 'http',
+    });
+  });
+
+  test('configures proxy correctly with hostname, protocol and port', () => {
+    process.env.proxy = 'https://proxy.example.com:8080';
+
+    const instance = createAxiosInstance();
+
+    expect(axios.create).toHaveBeenCalledTimes(1);
+    expect(instance.defaults.proxy).toEqual({
+      host: 'proxy.example.com',
+      protocol: 'https',
+      port: 8080,
+    });
+  });
+
+  test('handles proxy URLs with authentication', () => {
+    process.env.proxy = 'http://user:pass@proxy.example.com:3128';
+
+    const instance = createAxiosInstance();
+
+    expect(axios.create).toHaveBeenCalledTimes(1);
+    expect(instance.defaults.proxy).toEqual({
+      host: 'proxy.example.com',
+      protocol: 'http',
+      port: 3128,
+      // Note: The current implementation doesn't handle auth - if needed, add this functionality
+    });
+  });
+
+  test('throws error when proxy URL is invalid', () => {
+    process.env.proxy = 'invalid-url';
+
+    expect(() => createAxiosInstance()).toThrow('Invalid proxy URL');
+    expect(axios.create).toHaveBeenCalledTimes(1);
+  });
+
+  // If you want to test the actual URL parsing more thoroughly
+  test('handles edge case proxy URLs correctly', () => {
+    // IPv6 address
+    process.env.proxy = 'http://[::1]:8080';
+
+    let instance = createAxiosInstance();
+
+    expect(instance.defaults.proxy).toEqual({
+      host: '::1',
+      protocol: 'http',
+      port: 8080,
+    });
+
+    // URL with path (which should be ignored for proxy config)
+    process.env.proxy = 'http://proxy.example.com:8080/some/path';
+
+    instance = createAxiosInstance();
+
+    expect(instance.defaults.proxy).toEqual({
+      host: 'proxy.example.com',
+      protocol: 'http',
+      port: 8080,
+    });
+  });
+});