avm.getAssetDescription - AVAX

Example code for the avm.getAssetDescription JSON-RPC method. Complete guide on how to use avm.getAssetDescription JSON-RPC in GetBlock Web3 documentation.

Returns metadata for an asset on the X-Chain — name, symbol, denomination (decimals), and asset ID.

Parameters

Parameter	Type	Required	Description
assetID	string	Yes	Asset ID (CB58)

Request Example

cURL

curl --location --request POST 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/ext/bc/X' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "avm.getAssetDescription",
    "params": {
        "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z"
    },
    "id": "getblock.io"
}'

JavaScript (Axios)

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "avm.getAssetDescription",
    "params": {
        "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z"
    },
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/ext/bc/X',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data, null, 2)))
    .catch(error => console.log(error));

Python (Requests)

import requests
import json

url = "https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/ext/bc/X"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "avm.getAssetDescription",
    "params": {
        "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z"
    },
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

Rust (Reqwest)

use reqwest::Client;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();

    let payload = json!({
        "jsonrpc": "2.0",
        "method": "avm.getAssetDescription",
        "params": {
                "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z"
        },
        "id": "getblock.io"
});

    let response = client
        .post("https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/ext/bc/X")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);

    Ok(())
}

Response Example

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z",
        "name": "Avalanche",
        "symbol": "AVAX",
        "denomination": "9"
    }
}

Response Parameters

Field	Type	Description
result.assetID	string	Asset ID echoed back
result.name	string	Asset name
result.symbol	string	Asset symbol (ticker)
result.denomination	string	Number of decimals (AVAX = 9)

Use Cases

• Showing asset names/symbols in wallet UIs

• Formatting balances with the correct decimal precision

• Asset directories and explorers

Error Handling

Status Code	Error Message	Cause
404	Not Found	Missing or invalid <ACCESS-TOKEN>
-32602	Invalid params	Request parameters are missing or malformed
429	Too Many Requests	Rate limit exceeded for your plan

SDK Integration

AvalancheJS / Axios

// AvalancheJS provides typed clients for P-Chain and X-Chain.
// X-Chain operations are exposed through `avm` in AvalancheJS.
// For raw JSON-RPC access, use a generic HTTP client as in the Request Example.
import axios from 'axios';

const response = await axios.post('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/ext/bc/X', {
    jsonrpc: '2.0',
    id: 'getblock.io',
    method: 'avm.getAssetDescription',
    params: {"assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z"}
}});
console.log(response.data);

Python

# AvalancheJS is JavaScript-only. For Python, use a generic JSON-RPC client.
import requests
import json

url = 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/ext/bc/X'
payload = {
    'jsonrpc': '2.0',
    'id': 'getblock.io',
    'method': 'avm.getAssetDescription',
    'params': {"assetID": "FvwEAhmxKfeiG8SnEvq42hc6whRyY3EFYAvebMqDNDGCgxN5Z"}
}}
response = requests.post(url, json=payload)
print(response.json())