nym/documentation/docs/components/mix-fetch.tsx

import React, { useState } from "react";
import CircularProgress from "@mui/material/CircularProgress";
import Button from "@mui/material/Button";
import TextField from "@mui/material/TextField";
import Typography from "@mui/material/Typography";
import Box from "@mui/material/Box";
import { mixFetch } from "@nymproject/mix-fetch-full-fat";
import Stack from "@mui/material/Stack";
import Paper from "@mui/material/Paper";
import type { SetupMixFetchOps } from "@nymproject/mix-fetch-full-fat";

const defaultUrl = "https://nymtech.net/.wellknown/network-requester/exit-policy.txt";
const args = { mode: "unsafe-ignore-cors" };

const mixFetchOptions: SetupMixFetchOps = {
  preferredGateway: "2xU4CBE6QiiYt6EyBXSALwxkNvM7gqJfjHXaMkjiFmYW", // with WSS
  // preferredNetworkRequester:
  //   "CTDxrcXgrZHWyCWnuCgjpJPghQUcEVz1HkhUr5mGdFnT.3UAww1YWNyVNYNWFQL1LaHYouQtDiXBGK5GiDZgpXkTK@2RFtU5BwxvJJXagAWAEuaPgb5ZVPRoy2542TT93Edw6v",
  mixFetchOverride: {
    requestTimeoutMs: 60_000,
  },
  forceTls: true, // force WSS
};

export const MixFetch = () => {
  const [url, setUrl] = useState<string>(defaultUrl);
  const [html, setHtml] = useState<string>();
  const [busy, setBusy] = useState<boolean>(false);

  const handleFetch = async () => {
    try {
      setBusy(true);
      setHtml(undefined);
      const response = await mixFetch(url, args, mixFetchOptions);
      console.log(response);
      const resHtml = await response.text();
      setHtml(resHtml);
    } catch (err) {
      console.log(err);
    } finally {
      setBusy(false);
    }
  };

  return (
    <div style={{ marginTop: "1rem" }}>
      <Stack direction="row">
        <TextField
          disabled={busy}
          fullWidth
          label="URL"
          type="text"
          variant="outlined"
          defaultValue={defaultUrl}
          onChange={(e) => setUrl(e.target.value)}
        />
        <Button
          variant="outlined"
          disabled={busy}
          sx={{ marginLeft: "1rem" }}
          onClick={handleFetch}
        >
          Fetch
        </Button>
      </Stack>

      {busy && (
        <Box mt={4}>
          <CircularProgress />
        </Box>
      )}
      {html && (
        <>
          <Box mt={4}>
            <strong>Response</strong>
          </Box>
          <Paper sx={{ p: 2, mt: 1 }} elevation={4}>
            <Typography fontFamily="monospace" fontSize="small">
              {html}
            </Typography>
          </Paper>
        </>
      )}
    </div>
  );
};