Cashport SDK - Typescript

A Typescript SDK to integrate CashPort in your apps. https://cashport.io

Installing

Include the dependency in your project:

npm install cashport-sdk --save

Getting Started

This section contains all the steps required to integrate Cashport in your app.

1. Get the API Credentials.

Go to https://cashport.io/developers and apply for the API Credentials.

In the meanwhile you can use this API_ID to start developing.

L77MZzEO72ZZSrRg58ysiGvveqFe51rK9lMDXKILD6YJf4lNibacSUx0xr979duv

Remember this are just temporal credentials.

2. Create an Authorization Request

First of all, you have to include an html element where Cashport will build the custom components:

<div id="cashport-container"></div>

Some basic imports and initializations:

import {
    AuthorizationRequest,
    Cashport,
    GrantedAuthorization,
    PaymentRequestFactory,
    PersonalInfoPermission,
    SignTransactionRequestBuilder
} from 'cashport-sdk'

const appId = 'your-app-id;
let cashport: Cashport = new Cashport();

Then you can enable the Cashport login:

let cashport = new Cashport()
let permissions = [PersonalInfoPermission.HANDLE, PersonalInfoPermission.FIRST_NAME, PersonalInfoPermission.LAST_NAME, PersonalInfoPermission.EMAIL];
let authRequest = new AuthorizationRequest(permissions, appId);
cashport.loadAuthorizationRequest('cashport-container', authRequest, {
    onDeny: () => {
        // Authorization not granted :(
    },
    onSuccess: (authorization) => {
        let authToken = authorization.authToken;
        let expirationTimestamp = authorization.expirationTimestamp;
        let channelId = authorization.channelId;
        let spendLimitInSatoshis = authorization.spendLimitInSatoshis;
        
        let personalInfo = authorization.personalInfo;
        let handle = personalInfo.handle;
        let firstName = personalInfo.firstName;
        let lastName = personalInfo.lastName;
        let email = personalInfo.email;
    }
});

Now the login button it's ready. So when the user clicks the button, the process can be perform in two different ways:

1. If the user has HandCash installed in the same device, the app will be launched with the Authorization Request.
2. If the device does not have HandCash installed, will display a QR code to be scanned by HandCash.

In any case, you will get the Granted Authorization in the callback.

3. Create a Sign Transaction Request

Once the authorization is granted you have all what you need to perform automatic payment requests, in addition to the personal information.

Let's see how to tip to a $handle.

This is the code you need to create a Sign Transaction Request and handle the response.

function sendPayToHandlePaymentRequest(handle: string): void {
    let request = SignTransactionRequestBuilder.useApiId(appId)
        .withCredentials(grantedAuthorization.personalInfo.handle, grantedAuthorization.authToken, grantedAuthorization.channelId)
        .addPayment(PaymentRequestFactory.create().getPayToHandle(handle, 2500))
        .build();
    cashport.sendSignTransactionRequest(request, {
        onStart: () => {
            // Sending request...
        },
        onEnd: () => {
            // The request is done.
        },
        onSuccess: (requestId, transactionId) => {
            // Well done!
        },
        onAuthorizedFundsLimitReached: (requestId) => {
            // Authorized funds limit reached";
        },
        onDeviceNotAvailable: () => {
            // Device not available. The user should check his device connection.
        },
        onInsufficientWalletFunds: (requestId) => {
            // Insufficient funds.
        },
        onTokenExpired: (requestId) => {
            // Token expired. Time to login again.
        },
        onNotAuthorized: (requestId) => {
            // Not authorized, what are you doing?
        },
        onInternalWalletError: (requestId) => {
            // Internal wallet error :(
        },
        onBadRequest: (message: string, errorCode: number) => {
            // Bad request. WTF are your doing!?
        },
        onAPICallError: (message: string) => {
            // API Call error. We did something wrong :$
        }
    });
}

✅ Congrats, you have completed your first authorized transaction!

Demo

Try the demo at try.cashport.io

Next

• Build your first app and start to disrupt your industry!
• More docs coming soon!

#BringTheOasis

License

MIT License

Copyright (c) 2018 HandCash

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.