Reference

Props

fetchSessionToken

A function that is used to fetch session token that is generated from the API that is used to wrap the ratio /v1/clients/session (documentation here)

This is an async function.

The Ratio API uses client authentication which requires a client_id and client_secret. It is highly recommended to implement this call in a secure API backend. This will prevent the need of shipping the clientSecret with the client application.

const fetchSessionToken = async () => {
  try {
    let sessionTokenResponse = await fetch(
      'https://your.api.com/clients/session',
      {
        method: 'POST',
        body: JSON.stringify({
          signingAddress: walletAddress,
          depositAddress: walletAddress,
          signingNetwork: walletNetwork,
        }),
      }
    );

    let data = await sessionTokenResponse.json();
    return data.id;
  } catch (e) {
    console.error(e);
  }
  return null;
};
  
<RatioComponent 
  fetchSessionToken={async () => {
            return await fetchSessionToken();
          }}/>

TYPE	REQUIRED
function	Yes

signingCallback

Function that accepts a string which contains the challenge that is returned from the Ratio /v1/auth/cryptoWallet:start call (documentation here)

This is an async function that should return a promise. This will allow such asynchronous activities such as a biometrics check to happen during signing.

The return value from this function is of type RatioKitSigningResult. See the Models section below.

Example using Web3.js library

<RatioComponent 
  signingCallback={async (challenge: string) => {
    let sign = web3.eth.accounts.sign(challenge, privateKey);

    return Promise.resolve({
      signature: sign.signature,
    });
  }}/>

TYPE	REQUIRED
function	Yes

presetOrder

Since v0.10.0

A property that takes a RatioPresetOrder object. This is used to allow the order flow to have predetermined values rather than having the enter the Cryptocurrency, or Fiat Amount in the flow manually.

If you do not want to provide this value either omit it or pass in null.

See RatioPresetOrderfor more details

Make sure to provide a valid combination for currency and network valid combinations are as follows

Crypto Network	CryptoCurrencySymbol
Ethereum	ETH
Ethereum	USDC_ETHEREUM
Polygon	MATIC
Polygon	USDC_POLYGON
Polygon	AMKT_POLYGON

TYPE	REQUIRED
object or null	No

Example

<RatioComponent presetOrder={
              {
                fiatAmount: 20,
                cryptoCurrency: CryptoCurrencySymbol.ETH
              } as RatioPresetOrder
          }/>
    

onPress

A function that is called when the child view is pressed. This function is called before the SDK starts the authentication flow. Suggested uses include setting an ActivityIndicator or loading spinner to be visible.

Example

const [loading, setLoading] = useState(false)

<RatioComponent onPress={()=> {
    setLoading(true)
}}/>

TYPE	REQUIRED
function	No

onOpen

A function that is called once the SDK has completed its authentication flow and before the modal is displayed. Suggested uses include setting an ActivityIndicator or loading spinner to be hidden

Example

const [loading, setLoading] = useState(false)

<RatioComponent onOpen={()=> {
    setLoading(false)
}}/>

TYPE	REQUIRED
function	No

onTransactionComplete

A function that is called whenever a transaction is completed even if there was a failure. As part of the data in the RatioOrderStatus object, you will receive the userId for the user that completed the transaction and the ActivityItem detailing the transaction. The userId and activityItem will not be returned if there was an error in processing the order.

Example

<RatioComponent onTransactionComplete={(orderStatus: RatioOrderStatus)=> {
    Alert.alert(orderStatus.status)
}}/>

TYPE	REQUIRED
function	No

onHelp

A function that is called whenever a help button is pressed from within the RatioComponent Modal WebView. This callback allows for custom handling for when the user needs help.

If not provided, the default behaviour is to open the default email client and draft an email to [e-mail]

Example

<RatioComponent onHelp={()=> {
    Alert.alert(orderStatus.status)
}}/>

TYPE	REQUIRED
function	No

onAccountRecovery

A function that is called whenever the account recovery button is pressed from within the RatioComponent Modal WebView. This callback allows for custom handling for when the user needs help recovering their account.

If not provided, the default behaviour is to open the default email client and draft an email to [e-mail]

Example

<RatioComponent onAccountRecovery={()=> {
    Alert.alert(orderStatus.status)
}}/>

TYPE	REQUIRED
function	No

onError

A function that is called whenever an error occurs within the Ratio component's authorization flow.

If not provided, the default behaviour is to show an Alert dialog with an error message

Example

<RatioComponent onError={(errorMessage: string)=> {
    Alert.alert(errorMessage)
}}/>

TYPE	REQUIRED
function	No

onClose

A function that is called after the Ratio Modal WebView. There is no default behaviour if not provided. As of writing this documentation this function will be called when the user presses "Return to wallet" in the application. It will then close the React Native modal and then call "onClose"

TYPE	REQUIRED
function	No

onLogin

A function that is called when the a user is fully authenticated. It is also called when the user's account has been created. The callback returns a RatioUser object that is described below.

Example

<RatioComponent onLogin={(user: RatioUser)=> {
    Alert.alert(user.firstName)
}}/>

redirectUri

iOS Only A nullable string that points to a universal link. This is used for Plaid OAuth Authentication. For example http://ratio.me/plaid/oauth This route should be set up as a Universal link as described above NOTE: You must provide this URI to the Ratio team so that we can add it to our configuration

If your application is running on Android, pass in null as described in the code example

androidPackageName

Android Only

A nullable string that contains your Android package name. This is used for Plaid OAuth Authentication. NOTE: You must provide this package to the Ratio team so that we can add it to our configuration

If your application is running on iOS, pass in null as described in the code example

Models

RatioKitSigningResult

export interface RatioKitSigningResult {
  signature: string;
}

RatioOrderStatus

export interface RatioOrderStatus {
  data: {userId: string, activity: ActivityItem};
  status: 'success' | 'failure';
  error: OrderError;
}

RatioPresetOrder

export type RatioPresetOrder = {
  fiatAmount: number;
  cryptoCurrency: CryptoCurrencySymbol;
};

CryptoCurrencySymbol

export enum CryptoCurrencySymbol {
  ETH = 'ETH',
  MATIC = 'MATIC',
  USDC_ETHEREUM = 'USDC_ETHEREUM',
  USDC_POLYGON = 'USDC_POLYGON',
  AMKT_POLYGON = 'AMKT_POLYGON',
}

OrderError

export interface OrderError {
  errorId: string;
  message: string;
  statusCode: number;
}

ActivityItem

export interface ActivityItem {
  id: string;
  createTime: string;
  updateTime: string;
  fiat: ActivityItemFiat;
  crypto: ActivityItemCrypto;
  metadata: any;
}

ActivityItemFiat

export interface ActivityItemFiat {
  status: ActivityItemStatus;
  currency: FiatCurrency;
  amount: string;
  direction: Direction;
  fundingMethod: FundingMethod;
  bankAccount: BankAccount;
}

ActivityItemStatus

export enum ActivityItemStatus {
  PENDING = 'PENDING',
  COMPLETED = 'COMPLETED',
  FAILED = 'FAILED'
}

FiatCurrency

export enum FiatCurrency {
  USD = 'USD'
}

Direction

export enum Direction {
  CREDIT = 'CREDIT',
  DEBIT = 'DEBIT'
}

FundingMethod

export enum FundingMethod {
  ACH_ORIGINATED_STANDARD = 'ACH_ORIGINATED_STANDARD',
  ACH_ORIGINATED_INSTANT = 'ACH_ORIGINATED_INSTANT',
  ACH_RECEIVED = 'ACH_RECEIVED'
}

BankAccount

export interface BankAccount {
  id: string;
  createTime: string;
  updateTime: string;
  name: string;
  mask: string;
  linkStatus: LinkStatus;
  verificationStatus: VerificationStatus;
}

LinkStatus

export enum LinkStatus {
  INACTIVE = 'INACTIVE',
  ACTIVE = 'ACTIVE',
  LOGIN_REQUIRED = 'LOGIN_REQUIRED'
}

VerificationStatus

export enum VerificationStatus {
  IN_REVIEW = 'IN_REVIEW',
  APPROVED = 'APPROVED',
  DECLINED = 'DECLINED'
}

ActivityItemCrypto

export interface ActivityItemCrypto {
  status: ActivityItemStatus;
  currency: string;
  wallet: Wallet;
  direction: Direction;
  amount: string;
  price: string;
  fee: string;
  transactionHash: string;
}

Wallet

export interface Wallet {
  id: string;
  address: string;
  createTime: string;
  name: string;
  network: string;
  updateTime: string;
}

RatioUser

export interface RatioUser {
  id: string;
  createTime: string;
  updateTime: string;
  firstName: string;
  middleName: string;
  lastName: string;
  email: string;
  country: string;
  phone: string;
  preferredMfaMethod: TwoFactorMethod;
  nationality: string;
  occupation: string;
  kyc: Kyc;
  connectedBankAccounts: BankAccount[];
}

TwoFactorMethod

export enum TwoFactorMethod {
  OTP_SMS = 'OTP_SMS',
  TOTP = 'TOTP'
}

BankAccount

export interface BankAccount {
  id: string;
  createTime: string;
  updateTime: string;
  name: string;
  mask: string;
  linkStatus: LinkStatus;
  verificationStatus: VerificationStatus;
}

LinkStatus

export enum LinkStatus {
  INACTIVE = 'INACTIVE',
  ACTIVE = 'ACTIVE',
  LOGIN_REQUIRED = 'LOGIN_REQUIRED'
}

VerificationStatus

export enum VerificationStatus {
  IN_REVIEW = 'IN_REVIEW',
  APPROVED = 'APPROVED',
  DECLINED = 'DECLINED'
}

Kyc

export type Kyc = {
  createTime: string;
  updateTime: string;
  addressResult: KycResult;
  dobResult: KycResult;
  fraudResult: KycResult;
  idvResult: KycResult;
};

KycResult

export enum KycResult {
  UNKNOWN = 'UNKNOWN',
  NOT_STARTED = 'NOT_STARTED',
  SUBMITTED = 'SUBMITTED',
  IN_REVIEW = 'IN_REVIEW',
  APPROVED = 'APPROVED',
  DECLINED = 'DECLINED'
}