UI#

Installation and Initialization#

Make sure to update the OKX App to version 6.94.0 or later to start integrating OKX Connect into your DApp can be done using npm:

npm install @okxconnect/ui
npm install @okxconnect/universal-provider

Before connecting to a wallet, you need to create an object that can provide a UI interface for subsequent operations such as connecting to the wallet and sending transactions.

OKXUniversalConnectUI.init(dappMetaData, actionsConfiguration, uiPreferences, language)

Request parameters

dappMetaData - object
- name - string: The name of the application, will not be used as a unique representation.
- icon - string: URL of the application icon, must be in PNG, ICO, etc. SVG icons are not supported. SVG icons are not supported. It is best to pass a url pointing to a 180x180px PNG icon.
actionsConfiguration - object
- modals - (‘before’ | ‘success’ | ‘error’)[] | ‘all’ The modes of displaying alerts during transaction, defaults to ‘before’.
- returnStrategy -string ‘none’ | ${string}://${string}; for app wallet, specify the return strategy for the deep link when the user signs/rejects the request, if it is in telegram, you can configure tg://resolve
- tmaReturnUrl -string ‘back’ | ‘none’ | ${string}://${string}; For Telegram Mini Wallet, specify the return policy of deep link when user signs/rejects the request, if it's in telegram, you can configure tg://resolve none means no processing after signing; default is back;
uiPreferences -object
- theme - Theme can be: THEME.DARK, THEME.LIGHT, ‘SYSTEM’.
language - ‘en_US’ | ‘ru_RU’ | ‘zh_CN’ | ‘ar_AE’ | ‘cs_CZ’ | ‘de_DE’ | ‘es_ES’ | ‘es_LAT’ | ‘fr_FR’ | ‘id_ID’ | ‘it_IT’ | ‘nl_NL’ | ‘pl_PL’ | ‘pt_BR’ | ‘pt_PT’ | ‘ro_RO’ | ‘tr_TR’ | ‘uk_UA’ | ‘vi_VN’. , defaults to en_US

Return value

OKXUniversalConnectUI

Example

import { OKXUniversalConnectUI } from "@okxconnect/ui";

const okxUniversalConnectUI = await OKXUniversalConnectUI.init({
    dappMetaData: {
        icon: "https://static.okx.com/cdn/assets/imgs/247/58E63FEA47A2B7D7.png",
        name: "OKX Connect Demo"
    },
    actionsConfiguration: {
        returnStrategy: 'tg://resolve',
        modals:"all",
        tmaReturnUrl:'back'
    },
    language: "en_US",
    uiPreferences: {
        theme: THEME.LIGHT
    },
});

Connect to a wallet#

Connect to the wallet to get the wallet address as an identifier and the necessary parameters for signing transactions.

okxUniversalConnectUI.connect(connectParams: ConnectParams);

Request Parameters

connectParams - ConnectParams
- namespaces - [namespace: string]: ConnectNamespace ; Optional information about the requested connection, the key is ‘eip155’ for EVM, ‘cosmos’ for COSMOS, if any of the requested chain is not supported by the wallet, the wallet will reject the connection;
  - chains: string[]; chain id information, defaultChain?
  - defaultChain?: string; defaultChain
- optionalNamespaces - [namespace: string]: ConnectNamespace; optional information of the requested connection, the key of EVM is ‘eip155’, the key of COSMOS is ‘cosmos’, if the corresponding chain information is not supported by the wallet, it can still be connected;
  - chains: string[]; chain id information, defaultChain?
    - defaultChain?: string; default chain
- sessionConfig: object
  - redirect: string Jump parameter after successful connection, if it is a Mini App in Telegram, you can set it to deeplink of Telegram: ‘tg://resolve’. Return Value
Promise <SessionTypes.Struct | undefined>
- topic: string; The session identifier;
- namespaces: Record<string, Namespace>; namespace information for a successful connection;
  - chains: string[]; Chain information for the connection;
  - accounts: string[]; accounts information for the connection;
  - methods: string[]; Methods supported by the wallet in the current namespace;
  - defaultChain?: string; The default chain for the current session.
- sessionConfig?: SessionConfig
  - dappInfo: object DApp information;
    - name: string
    - icon:string
  - redirect?: string, the redirect parameter after successful connection;

Example

var session = await okxUniversalConnectUI.connect({
    namespaces: {
        cosmos: {
            chains: [
                "cosmos:cosmoshub-4",
                 // "cosmos:osmosis-1"
            ],
        }
    },
    sessionConfig: {
        redirect: "tg://resolve"
    }
})

Determine if the wallet is connected#

Gets whether the wallet is currently connected.

Return Value

boolean

Example

universalUi.connected();

Prepare the transaction#

First create an OKXCosmosProvider object, with the constructor passing in OKXUniversalConnectUI

import { OKXCosmosProvider } from ‘@okxconnect/universal-provider’;
Let okxCosmosProvider = new OKXCosmosProvider(okxUniversalProvider)

Get account information#

okxCosmosProvider.getAccount(chainId)

Request parameters

chainId: the requested chain, e.g. cosmos:cosmoshub-4, cosmos:osmosis-1

Return Value

Object
- algo: ‘secp256k1’,
- address: string wallet-address, bech32Address: string wallet-address, bech32Address
- bech32Address: string walletAddress, pubKey: Uint8Address, pubKey: Uint8Address
- pubKey: Uint8Array publicKey, pubKey: Uint8Array publicKey, pubKey: Uint8Array publicKey

Example

let result = okxCosmosProvider.getAccount("cosmos:cosmoshub-4")
//Return structure
{
    "algo": "secp256k1",
    "address": "cosmos1u6lts9ng4etxj0zdaxsada6zgl8dudpg3ygvjw",
    "bech32Address": "cosmos1u6lts9ng4etxj0zdaxsada6zgl8dudpg3ygvjw",
    "pubKey": Unit8Aray,
}

Sign the message#

okxCosmosProvider.signArbitrary(chain, signerAddress, message)

Request Parameters

chain - string, chain of requested execution methods
signerAddress - string The address of the signature wallet.
message - string The message to be signed.

Return Value

Promise - object
- pub_key : object
  - type:string Public key type
  - value: string Public key
- signature: string Signature result

Example

let chain = "cosmos:cosmoshub-4"
let signStr = "data need to sign ..."

let result = okxCosmosProvider.signArbitrary(chain, signStr)
//Return structure: {"pub_key":{"type":"tendermint/PubKeySecp256k1","value":"AkRuGelKwOg+qJbScSUHV36zn73S1q6fD8C5dZ8furqQ"},"signature":"YSyndEFlHYTWpSXsn28oolZpKim/BnmCVD0hZfvPQHQV3Bc0B0EU77CKE6LpV+PUJn19d1skAQy/bXyzppnuxw=="}

SignAmino#

okxCosmosProvider.signAmino(chainId: string, signerAddress: string, signDoc: StdSignDoc, signOptions?: object)

Request Parameters

chainId - string, the chain for which the signature execution is requested, mandatory parameter
signerAddress - string, the address of the wallet.
signDoc - object, the transaction information to be signed in a fixed format, similar to cosmjs OfflineSigner signAmino method, the parameter is the object, signDoc is a fixed format. ***signDoc is a fixed format.
Promise - Object
- signed - object,transaction information
- signature -object, the result of the signature.

Example

let signDoc = {
    "chain_id": "osmosis-1",
    "account_number": "630104",
    "sequence": "480",
    "fee": {"gas": "683300", "amount": [{"denom": "uosmo", "amount": "2818"}]},
    "msgs": [{
        "type": "osmosis/poolmanager/swap-exact-amount-in",
        "value": {
            "sender": "osmo1u6lts9ng4etxj0zdaxsada6zgl8dudpgelmuyu",
            "routes": [{
                "pool_id": "1096",
                "token_out_denom": "ibc/987C17B11ABC2B20019178ACE62929FE9840202CE79498E29FE8E5CB02B7C0A4"
            }, {
                "pool_id": "611",
                "token_out_denom": "ibc/27394FB092D2ECCD56123C74F36E4C1F926001CEADA9CA97EA622B25F41E5EB2"
            }],
            "token_in": {"denom": "uosmo", "amount": "100"},
            "token_out_min_amount": "8"
        }
    }],
    "memo": "FE",
    "timeout_height": "23603788",
    "signOptions": {
        "useOneClickTrading": false,
        "preferNoSetFee": true,
        "fee": {"gas": "683300", "amount": [{"denom": "uosmo", "amount": "2818"}]}
    }
}
let res = await provider.signAmino("cosmos:osmosis-1", provider.getAccount("cosmos:osmosis-1").address, signDoc)


/**
    Return structure:
    {
    "signed": {
    "chain_id": "osmosis-1",
    "account_number": "630104",
    "sequence": "480",
    "fee": {
    "amount": [
    {
    "amount": "12500",
    "denom": "uosmo"
    }
    ],
    "gas": "500000"
    },
    "msgs": [
    {
    "type": "osmosis/poolmanager/swap-exact-amount-in",
    "value": {
    "sender": "osmo1u6lts9ng4etxj0zdaxsada6zgl8dudpgelmuyu",
    "routes": [
    {
    "pool_id": "1096",
    "token_out_denom": "ibc/987C17B11ABC2B20019178ACE62929FE9840202CE79498E29FE8E5CB02B7C0A4"
    },
    {
    "pool_id": "611",
    "token_out_denom": "ibc/27394FB092D2ECCD56123C74F36E4C1F926001CEADA9CA97EA622B25F41E5EB2"
    }
    ],
    "token_in": {
    "denom": "uosmo",
    "amount": "100"
    },
    "token_out_min_amount": "8"
    }
    }
    ],
    "memo": "FE",
    "timeout_height": "23603788",
    "signOptions": {
    "useOneClickTrading": false,
    "preferNoSetFee": true,
    "fee": {
    "gas": "683300",
    "amount": [
    {
    "denom": "uosmo",
    "amount": "2818"
    }
    ]
    }
    }
    },
    "signature": {
    "pub_key": {
    "type": "tendermint/PubKeySecp256k1",
    "value": "AkRuGelKwOg+qJbScSUHV36zn73S1q6fD8C5dZ8furqQ"
    },
    "signature": "2Brt/w+1U3C+tIbsI//pv9zTYca9WlBd1eKm/Gde5MFaRagmxtsn6h2beP7+4R4MDav7r1G+0Nxd5arB0qVfUw=="
    }
    }
 */

SignDirect#

okxCosmosProvider.signDirect(chainId, signerAddress, signDoc, signOptions?)

Request Parameters

chainId - string, the chain where the signature execution is requested, mandatory parameter.
signerAddress - string, wallet address
signDoc - object transaction data
- bodyBytes ,Uint8Array
- authInfoBytes, Uint8Array
- chainId, string
- accountNumber, string

Return Value

Promise - Object
- signed - object,transaction information
- signature -object, the result of the signature.

Example

let signDoc = {
    "bodyBytes": Uint8Array,
    "authInfoBytes": Uint8Array,
    "chainId": "osmosis-1",
    "accountNumber": "630104",
}
let res = await provider.signDirect("cosmos:osmosis-1", provider.getAccount("cosmos:osmosis-1").address, signDoc)


/**
    {
    "signed": {
    "bodyBytes": Uint8Array,
    "authInfoBytes":Uint8Array ,
    "chainId": "osmosis-1",
    "accountNumber": "630104"
    },
    "signature": {
    "pub_key": {
    "type": "tendermint/PubKeySecp256k1",
    "value": "AkRuGelKwOg+qJbScSUHV36zn73S1q6fD8C5dZ8furqQ"
    },
    "signature": "YpX2kGmbZYVxUqK8y9OCweJNgZkS4WaS79nBDfOJaTgowPfY0gSbXSQeRLlif2SIkBqcwTNSItBqb5M7a6K30g=="
    }
    }
 */

Disconnect wallet#

Disconnect the connected wallet and delete the current session. If you want to switch the connected wallet, please disconnect the current wallet first.

okxUniversalProvider.disconnect();

Connect to App or Mini Wallet

SDK

Connect to App or Mini Wallet

Troubleshooting

Table of contents

Installation and Initialization

Connect to a wallet

Determine if the wallet is connected

Prepare the transaction

Get account information