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1
const options = {
2
  method: 'POST',
3
  headers: {accept: 'application/json', 'content-type': 'application/json'},
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  body: JSON.stringify({id: 1, jsonrpc: '2.0', method: 'wallet_prepareCalls'})
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};
6
​
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fetch('https://api.g.alchemy.com/docs-demo', options)
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  .then(res => res.json())
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  .then(res => console.log(res))
10
  .catch(err => console.error(err));