suix_getDynamicFields - Sui

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

This method returns the list of dynamic fields owned by an object on the SUI network. Dynamic fields allow objects to store key-value pairs that can be added or removed at runtime, enabling flexible data structures like maps and tables in Move.

Parameters

Parameter

Type

Required

Description

parent_object_id

ObjectID

Yes

The parent object ID

cursor

ObjectID

Pagination cursor

limit

uint

Maximum items per page

Request Example

cURL

curl -X POST https://go.getblock.io/<ACCESS-TOKEN>/ \
-H "Content-Type: application/json" \
-d '{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "method": "suix_getDynamicFields",
  "params": [
    "0x5612581eba57ebe7e594b809ccceec2be4dac6ff6945d49b3ecc043d049611f6",
    null,
    10
  ]
}'

request.js

const axios = require('axios');

const payload = {
  jsonrpc: '2.0',
  id: 'getblock.io',
  method: 'suix_getDynamicFields',
  params: [
    '0x5612581eba57ebe7e594b809ccceec2be4dac6ff6945d49b3ecc043d049611f6',
    null,
    10
  ]
};

axios.post('https://go.getblock.io/<ACCESS-TOKEN>/', payload)
.then(response => console.log(response.data));

request.py

import requests

payload = {
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "method": "suix_getDynamicFields",
    "params": [
        "0x5612581eba57ebe7e594b809ccceec2be4dac6ff6945d49b3ecc043d049611f6",
        None,
        10
    ]
}

response = requests.post("https://go.getblock.io/<ACCESS-TOKEN>/", json=payload)
print(response.json())

main.rs

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",
        "id": "getblock.io",
        "method": "suix_getDynamicFields",
        "params": ["0x5612581eba57ebe7e594b809ccceec2be4dac6ff6945d49b3ecc043d049611f6", null, 10]
    });
    let response = client.post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .json(&payload).send().await?;
    println!("{}", response.text().await?);
    Ok(())
}

Response Example

response.json

{
  "jsonrpc": "2.0",
  "result": {
    "data": [
      {
        "name": {
          "type": "0x1::string::String",
          "value": "key_name"
        },
        "bcsName": "a2V5X25hbWU=",
        "type": "DynamicField",
        "objectType": "0x2::dynamic_field::Field<0x1::string::String, u64>",
        "objectId": "0x1234...",
        "version": 100,
        "digest": "ABC123..."
      }
    ],
    "nextCursor": "0x1234...",
    "hasNextPage": true
  },
  "id": "getblock.io"
}

Response Parameters

Parameter

Type

Description

name

object

Dynamic field name (type and value)

type

string

DynamicField or DynamicObject

objectType

string

Full type of the field object

objectId

string

Object ID of the field

version

number

Object version

digest

string

Object digest

Use Cases

Enumerate map or table contents
Browse object attachments
Query dynamic storage
Build data explorers

Error Handling

Error Code

Description

-32602

Invalid params - malformed object ID

-32603

Internal error - node issues

SDK Integration

sui.ts

import { SuiClient } from '@mysten/sui/client';

const client = new SuiClient({ url: 'https://go.getblock.io/<ACCESS-TOKEN>/' });
const fields = await client.getDynamicFields({
  parentId: '0x5612581eba57ebe7e594b809ccceec2be4dac6ff6945d49b3ecc043d049611f6'
});
console.log(fields);

sui_rust.rs

use sui_sdk::SuiClientBuilder;

#[tokio::main]
async fn main() -> Result<(), anyhow::Error> {
    let sui = SuiClientBuilder::default().build("https://go.getblock.io/<ACCESS-TOKEN>/").await?;
    let parent = "0x5612581eba57ebe7e594b809ccceec2be4dac6ff6945d49b3ecc043d049611f6".parse()?;
    let fields = sui.read_api().get_dynamic_fields(parent, None, None).await?;
    println!("{:?}", fields);
    Ok(())
}

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