'React, getting could not proxy request error
There is an application. Installed modules and dependencies. But when I try to start the application, the API does not work - it writes a proxy error. (Proxy error: Could not proxy request).
I rummaged through a bunch of everything on the Internet, there is an article on en.stackover, but damn it, I seem to be doing everything right, but the result is the same. I can not understand.
My package.json file:
{
"name": "app",
"version": "0.1.0",
"private": true,
"dependencies": {
"@babel/core": "7.12.3",
"@pmmmwh/react-refresh-webpack-plugin": "0.4.2",
"@svgr/webpack": "5.4.0",
"@testing-library/jest-dom": "^5.11.6",
"@testing-library/react": "^11.2.2",
"@testing-library/user-event": "^12.2.2",
"@typescript-eslint/eslint-plugin": "^4.5.0",
"@typescript-eslint/parser": "^4.5.0",
"babel-eslint": "^10.1.0",
"babel-jest": "^26.6.0",
"babel-loader": "8.1.0",
"babel-plugin-named-asset-import": "^0.3.7",
"babel-preset-react-app": "^10.0.0",
"bfj": "^7.0.2",
"camelcase": "^6.1.0",
"case-sensitive-paths-webpack-plugin": "2.3.0",
"chokidar": "^3.5.2",
"css-loader": "4.3.0",
"datatables.net": "^1.10.23",
"datatables.net-dt": "^1.10.23",
"dotenv": "8.2.0",
"dotenv-expand": "5.1.0",
"eslint": "^7.11.0",
"eslint-config-react-app": "^6.0.0",
"eslint-plugin-flowtype": "^5.2.0",
"eslint-plugin-import": "^2.22.1",
"eslint-plugin-jest": "^24.1.0",
"eslint-plugin-jsx-a11y": "^6.3.1",
"eslint-plugin-react": "^7.21.5",
"eslint-plugin-react-hooks": "^4.2.0",
"eslint-plugin-testing-library": "^3.9.2",
"eslint-webpack-plugin": "^2.1.0",
"express": "^4.17.1",
"file-loader": "6.1.1",
"fs-extra": "^9.0.1",
"html-webpack-plugin": "4.5.0",
"identity-obj-proxy": "3.0.0",
"inputmask": "^5.0.5",
"jest": "26.6.0",
"jest-circus": "26.6.0",
"jest-resolve": "26.6.0",
"jest-watch-typeahead": "0.6.1",
"jquery": "^3.5.1",
"lightbox2": "^2.11.3",
"mini-css-extract-plugin": "0.11.3",
"optimize-css-assets-webpack-plugin": "5.0.4",
"pnp-webpack-plugin": "1.6.4",
"postcss-flexbugs-fixes": "4.2.1",
"postcss-loader": "3.0.0",
"postcss-normalize": "8.0.1",
"postcss-preset-env": "6.7.0",
"postcss-safe-parser": "5.0.2",
"prompts": "2.4.0",
"react": "^17.0.2",
"react-app-polyfill": "^2.0.0",
"react-data-table-component": "^7.0.0-alpha-5",
"react-dev-utils": "^11.0.1",
"react-dom": "^17.0.2",
"react-input-mask": "^2.0.4",
"react-input-range": "^1.3.0",
"react-refresh": "^0.8.3",
"react-router-dom": "^5.2.0",
"resolve": "1.18.1",
"resolve-url-loader": "^3.1.2",
"sass-loader": "8.0.2",
"semver": "7.3.2",
"slick-carousel": "^1.8.1",
"style-loader": "1.3.0",
"styled-components": "^5.3.0",
"terser-webpack-plugin": "4.2.3",
"ts-pnp": "1.2.0",
"url-loader": "4.1.1",
"webpack": "4.44.2",
"webpack-dev-server": "3.11.0",
"webpack-manifest-plugin": "2.2.0",
"workbox-webpack-plugin": "5.1.4"
},
"scripts": {
"start": "node --max-http-header-size=14120024 --max-old-space-size=20096 scripts/start.js",
"build": "node scripts/build.js",
"test": "node scripts/test.js"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"proxy": "http://localhost:3000/",
"jest": {
"roots": [
"<rootDir>/src"
],
"collectCoverageFrom": [
"src/**/*.{js,jsx,ts,tsx}",
"!src/**/*.d.ts"
],
"setupFiles": [
"react-app-polyfill/jsdom"
],
"setupFilesAfterEnv": [],
"testMatch": [
"<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}",
"<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}"
],
"testEnvironment": "jsdom",
"testRunner": "/Users/user/Downloads/goroskop2/node_modules/jest-circus/runner.js",
"transform": {
"^.+\\.(js|jsx|mjs|cjs|ts|tsx)$": "<rootDir>/node_modules/babel-jest",
"^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
"^(?!.*\\.(js|jsx|mjs|cjs|ts|tsx|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
},
"transformIgnorePatterns": [
"[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$",
"^.+\\.module\\.(css|sass|scss)$"
],
"modulePaths": [],
"moduleNameMapper": {
"^react-native$": "react-native-web",
"^.+\\.module\\.(css|sass|scss)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"web.js",
"js",
"web.ts",
"ts",
"web.tsx",
"tsx",
"json",
"web.jsx",
"jsx",
"node"
],
"watchPlugins": [
"jest-watch-typeahead/filename",
"jest-watch-typeahead/testname"
],
"resetMocks": true
},
"babel": {
"presets": [
"react-app"
]
}
}
Project structure:
-api
-config
-node_modules
-public
-scripts
-src
-upload
-vendor
package.json
package-lock.json
If someone could suggest I would be extremely grateful. What I tried so far:
Put in proxy
http: // localhost
http: // localhost /
http: // localhost: 3000
http: // localhost: 3000 /
Run serve -s build.
In this case, it runs on port 3000, and when the application starts, when accessed via the API, it issues an html page (from the build directory)
I also tried to run node scripts / start.js and npm start separately.
As planned - it came out nonsense, but I've already tried everything.
Solution 1:[1]
I had this problem once. Although it used to work. So I tried the other way of doing proxy with React, and it works all the time, in every project so far.
All you have to do is follow this 4 simple steps :
- Install the
http-proxy-middlewarein your React folder.
npm i http-proxy-middleware
- Create a
setupProxy.jsfile in your Reactsrcfolder. - Past the followings lines in it.
const { createProxyMiddleware } = require("http-proxy-middleware");
module.exports = function (app) {
app.use(
"/api",
createProxyMiddleware({
target: "http://localhost:8000",
changeOrigin: true,
})
);
};
- Change
"/api"part with whatever yourAPIendpoints start, and thetargetport with what you are using.
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 |