$
touch token-api-script.js

1
// Replace with your Alchemy API Key
2
const apiKey = "demo";
3
const baseURL = `https://eth-mainnet.g.alchemy.com/v2/${apiKey}`;
4
5
async function getTokenData() {
6
  try {
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    // The wallet address / token we want to query for:
8
    const ownerAddr = "0x3f5ce5fbfe3e9af3971dd833d26ba9b5c936f0be";
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    const tokenAddr = "0x607f4c5bb672230e8672085532f7e901544a7375";
10
11
    // Get token balances
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    const balanceResponse = await fetch(baseURL, {
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      method: 'POST',
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      headers: {
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        'Content-Type': 'application/json',
16
      },
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      body: JSON.stringify({
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        jsonrpc: "2.0",
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        method: "alchemy_getTokenBalances",
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        params: [ownerAddr, [tokenAddr]],
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        id: 1
22
      })
23
    });
24
25
    const balanceData = await balanceResponse.json();
26
27
    // Get token metadata
28
    const metadataResponse = await fetch(baseURL, {
29
      method: 'POST',
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      headers: {
31
        'Content-Type': 'application/json',
32
      },
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      body: JSON.stringify({
34
        jsonrpc: "2.0",
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        method: "alchemy_getTokenMetadata",
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        params: [tokenAddr],
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        id: 2
38
      })
39
    });
40
41
    const metadataData = await metadataResponse.json();
42
43
    console.log("Token Balances:");
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    console.log(balanceData.result);
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    console.log("Token Metadata:");
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    console.log(metadataData.result);
47
48
  } catch (error) {
49
    console.error('Request failed:', error.message);
50
  }
51
}
52
53
getTokenData();

$
node token-api-script.js

$
Token Balances:
>
{
>
  address: '0x3f5ce5fbfe3e9af3971dd833d26ba9b5c936f0be',
>
  tokenBalances: [
>
    {
>
      contractAddress: '0x607f4c5bb672230e8672085532f7e901544a7375',
>
      tokenBalance: '0x0000000000000000000000000000000000000000000000000000000000000000',
>
      error: null
>
    }
>
  ]
>
}
>
Token Metadata:
>
{
>
  decimals: 9,
>
  logo: 'https://static.alchemyapi.com/images/assets/1637.png',
>
  name: 'iExec RLC',
>
  symbol: 'RLC'
>
}

$
touch fetch-script.js

1
// alchemy-token-api/fetch-script.js
2
3
4
// Replace with your Alchemy API key:
5
const apiKey = "demo";
6
const fetchURL = `https://eth-mainnet.g.alchemy.com/v2/${apiKey}`;
7
8
// Replace with the wallet address you want to query:
9
const ownerAddr = "0x3f5ce5fbfe3e9af3971dd833d26ba9b5c936f0be";
10
// Replace with the token contract address you want to query:
11
const tokenAddr = "0x607f4c5bb672230e8672085532f7e901544a7375";
12
13
var raw = JSON.stringify({
14
  "jsonrpc": "2.0",
15
  "method": "alchemy_getTokenBalances",
16
  "headers": {
17
    "Content-Type": "application/json"
18
  },
19
  "params": [
20
    `${ownerAddr}`,
21
    [
22
      `${tokenAddr}`,
23
    ]
24
  ],
25
  "id": 42
26
});
27
28
var requestOptions = {
29
  method: 'POST',
30
  body: raw,
31
  redirect: 'follow'
32
};
33
34
// Make the request and print the formatted response:
35
fetch(fetchURL, requestOptions)
36
  .then(response => response.json())
37
  .then(response => JSON.stringify(response, null, 2))
38
  .then(result => console.log(result))
39
  .catch(error => console.log('error', error));

$
node fetch-script.js

1
{
2
  "jsonrpc": "2.0",
3
  "id": 42,
4
  "result": {
5
    "address": "0x3f5ce5fbfe3e9af3971dd833d26ba9b5c936f0be",
6
    "tokenBalances": [
7
      {
8
        "contractAddress": "0x607f4c5bb672230e8672085532f7e901544a7375",
9
        "tokenBalance": "0x00000000000000000000000000000000000000000000000000003c005f81ab00",
10
        "error": null
11
      }
12
    ]
13
  }
14
}