Build issues related to polyfill and webpack 5

Hi there! I have a small React app I made with create-react-app, and I’m trying to add your library to it so I can push data from a form to a Google spreadsheet. The problem is that as soon as I do import { GoogleSpreadsheet } from 'google-spreadsheet';, the build produces all these errors about polyfill and webpack 5 (see below). I’ve done quite a bit of searching online, and tried the following to resolve it:

• Adding the NodePolyfillPlugin
• Downgrading to webpack 4
• Adding a webpack config file with all these fallbacks:

  resolve: {
      fallback: {
        assert: false,
        buffer: false,
        console: false,
        constants: false,
        crypto: false,
        domain: false,
        events: false,
        http: false,
        https: false,
        os: false,
        path: false,
        punycode: false,
        process: false,
        querystring: false,
        stream: false,
        string_decoder: false,
        sys: false,
        timers: false,
        tty: false,
        url: false,
        util: false,
        vm: false,
        zlib: false,
      },
    },
  

• Setting target: 'node' in webpack config

No luck so far. Is there a chance that there’s something that needs to be done on your end? I’m stumped at this point, but I’d really like to use your library as it looks like the best option for working with the Google Sheets API! Thank you in advance for any advice!

Errors

Compiled with problems:

ERROR in ./node_modules/buffer-equal-constant-time/index.js 4:13-37

Module not found: Error: Can't resolve 'buffer' in '/<path>/<to>/node_modules/buffer-equal-constant-time'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "buffer": require.resolve("buffer/") }'
	- install 'buffer'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "buffer": false }


ERROR in ./node_modules/gcp-metadata/node_modules/gaxios/build/src/gaxios.js 27:16-32

Module not found: Error: Can't resolve 'https' in '/<path>/<to>/node_modules/gcp-metadata/node_modules/gaxios/build/src'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
	- install 'https-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "https": false }


ERROR in ./node_modules/google-auth-library/build/src/auth/googleauth.js 20:24-48

Module not found: Error: Can't resolve 'child_process' in '/<path>/<to>/node_modules/google-auth-library/build/src/auth'


ERROR in ./node_modules/google-auth-library/build/src/auth/googleauth.js 22:11-24

Module not found: Error: Can't resolve 'fs' in '/<path>/<to>/node_modules/google-auth-library/build/src/auth'


ERROR in ./node_modules/google-auth-library/build/src/auth/googleauth.js 26:11-24

Module not found: Error: Can't resolve 'os' in '/<path>/<to>/node_modules/google-auth-library/build/src/auth'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "os": require.resolve("os-browserify/browser") }'
	- install 'os-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "os": false }


ERROR in ./node_modules/google-auth-library/build/src/auth/googleauth.js 28:13-28

Module not found: Error: Can't resolve 'path' in '/<path>/<to>/node_modules/google-auth-library/build/src/auth'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
	- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "path": false }


ERROR in ./node_modules/google-auth-library/build/src/auth/oauth2client.js 22:15-32

Module not found: Error: Can't resolve 'stream' in '/<path>/<to>/node_modules/google-auth-library/build/src/auth'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
	- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "stream": false }


ERROR in ./node_modules/google-auth-library/build/src/crypto/node/crypto.js 20:15-32

Module not found: Error: Can't resolve 'crypto' in '/<path>/<to>/node_modules/google-auth-library/build/src/crypto/node'
Did you mean './crypto'?
Requests that should resolve in the current directory need to start with './'.
Requests that start with a name are treated as module requests and resolve within module directories (node_modules, /<path>/<to>/node_modules).
If changing the source code is not an option there is also a resolve options called 'preferRelative' which tries to resolve these kind of requests in the current directory too.

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
	- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "crypto": false }


ERROR in ./node_modules/google-auth-library/node_modules/gaxios/build/src/gaxios.js 27:16-32

Module not found: Error: Can't resolve 'https' in '/<path>/<to>/node_modules/google-auth-library/node_modules/gaxios/build/src'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
	- install 'https-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "https": false }


ERROR in ./node_modules/google-p12-pem/build/src/index.js 14:11-24

Module not found: Error: Can't resolve 'fs' in '/<path>/<to>/node_modules/google-p12-pem/build/src'


ERROR in ./node_modules/google-p12-pem/build/src/index.js 18:15-30

Module not found: Error: Can't resolve 'util' in '/<path>/<to>/node_modules/google-p12-pem/build/src'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
	- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "util": false }


ERROR in ./node_modules/gtoken/build/src/index.js 14:11-24

Module not found: Error: Can't resolve 'fs' in '/<path>/<to>/node_modules/gtoken/build/src'


ERROR in ./node_modules/gtoken/build/src/index.js 20:13-28

Module not found: Error: Can't resolve 'path' in '/<path>/<to>/node_modules/gtoken/build/src'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
	- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "path": false }


ERROR in ./node_modules/gtoken/build/src/index.js 22:15-30

Module not found: Error: Can't resolve 'util' in '/<path>/<to>/node_modules/gtoken/build/src'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
	- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "util": false }


ERROR in ./node_modules/gtoken/node_modules/gaxios/build/src/gaxios.js 27:16-32

Module not found: Error: Can't resolve 'https' in '/<path>/<to>/node_modules/gtoken/node_modules/gaxios/build/src'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
	- install 'https-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "https": false }


ERROR in ./node_modules/https-proxy-agent/dist/agent.js 45:30-44

Module not found: Error: Can't resolve 'net' in '/<path>/<to>/node_modules/https-proxy-agent/dist'


ERROR in ./node_modules/https-proxy-agent/dist/agent.js 47:30-44

Module not found: Error: Can't resolve 'tls' in '/<path>/<to>/node_modules/https-proxy-agent/dist'


ERROR in ./node_modules/https-proxy-agent/dist/agent.js 51:33-50

Module not found: Error: Can't resolve 'assert' in '/<path>/<to>/node_modules/https-proxy-agent/dist'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "assert": require.resolve("assert/") }'
	- install 'assert'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "assert": false }


ERROR in ./node_modules/jwa/index.js 5:13-30

Module not found: Error: Can't resolve 'crypto' in '/<path>/<to>/node_modules/jwa'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
	- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "crypto": false }


ERROR in ./node_modules/jwa/index.js 9:11-26

Module not found: Error: Can't resolve 'util' in '/<path>/<to>/node_modules/jwa'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
	- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "util": false }


ERROR in ./node_modules/jws/lib/data-stream.js 4:13-30

Module not found: Error: Can't resolve 'stream' in '/<path>/<to>/node_modules/jws/lib'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
	- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "stream": false }


ERROR in ./node_modules/jws/lib/data-stream.js 6:11-26

Module not found: Error: Can't resolve 'util' in '/<path>/<to>/node_modules/jws/lib'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
	- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "util": false }


ERROR in ./node_modules/jws/lib/sign-stream.js 8:13-30

Module not found: Error: Can't resolve 'stream' in '/<path>/<to>/node_modules/jws/lib'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
	- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "stream": false }


ERROR in ./node_modules/jws/lib/sign-stream.js 12:11-26

Module not found: Error: Can't resolve 'util' in '/<path>/<to>/node_modules/jws/lib'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
	- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "util": false }


ERROR in ./node_modules/jws/lib/tostring.js 2:13-37

Module not found: Error: Can't resolve 'buffer' in '/<path>/<to>/node_modules/jws/lib'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "buffer": require.resolve("buffer/") }'
	- install 'buffer'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "buffer": false }


ERROR in ./node_modules/jws/lib/verify-stream.js 8:13-30

Module not found: Error: Can't resolve 'stream' in '/<path>/<to>/node_modules/jws/lib'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
	- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "stream": false }


ERROR in ./node_modules/jws/lib/verify-stream.js 12:11-26

Module not found: Error: Can't resolve 'util' in '/<path>/<to>/node_modules/jws/lib'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
	- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "util": false }


ERROR in ./node_modules/safe-buffer/index.js 2:13-30

Module not found: Error: Can't resolve 'buffer' in '/<path>/<to>/node_modules/safe-buffer'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "buffer": require.resolve("buffer/") }'
	- install 'buffer'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "buffer": false }

[theoephraim]

@armenic - I’ve finally begun working on a new major release that will move everything to typescript (so we’ll get better types that stay up to date!) and will make sure it is usable in the browser. How long it will take depends on my free time, but hopefully soon!

[JakubAndrysek]

My full solution for resolving this problem is there.