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starkinfra

v0.8.1

Published

SDK to facilitate Node integrations with Stark Infra

Downloads

1,111

Readme

Stark Infra Node SDK - Beta

Welcome to the Stark Infra Node SDK! This tool is made for Node developers who want to easily integrate with our API. This SDK version is compatible with the Stark Infra API v2.

Introduction

Index

Supported Node Versions

This library supports the following Node versions:

  • Node 10+

If you have specific version demands for your projects, feel free to contact us.

Stark Infra API documentation

Feel free to take a look at our API docs.

Versioning

This project adheres to the following versioning pattern:

Given a version number MAJOR.MINOR.PATCH, increment:

  • MAJOR version when the API version is incremented. This may include backwards incompatible changes;
  • MINOR version when breaking changes are introduced OR new functionalities are added in a backwards compatible manner;
  • PATCH version when backwards compatible bug fixes are implemented.

Setup

1. Install our SDK

1.1 To install the package with npm, run:

npm install starkinfra

2. Create your Private and Public Keys

We use ECDSA. That means you need to generate a secp256k1 private key to sign your requests to our API, and register your public key with us, so we can validate those requests.

You can use one of the following methods:

2.1. Check out the options in our tutorial.

2.2. Use our SDK:

const starkinfra = require('starkinfra');

let privateKey, publicKey;

[privateKey, publicKey] = starkinfra.key.create();

// or, to also save .pem files in a specific path
[privateKey, publicKey] = starkinfra.key.create('file/keys/');

NOTE: When you are creating new credentials, it is recommended that you create the keys inside the infrastructure that will use it, in order to avoid risky internet transmissions of your private-key. Then you can export the public-key alone to the computer where it will be used in the new Project creation.

3. Register your user credentials

You can interact directly with our API using two types of users: Projects and Organizations.

  • Projects are workspace-specific users, that is, they are bound to the workspaces they are created in. One workspace can have multiple Projects.
  • Organizations are general users that control your entire organization. They can control all your Workspaces and even create new ones. The Organization is bound to your company's tax ID only. Since this user is unique in your entire organization, only one credential can be linked to it.

3.1. To create a Project in Sandbox:

3.1.1. Log into StarkInfra Sandbox

3.1.2. Go to Menu > Integrations

3.1.3. Click on the 'New Project' button

3.1.4. Create a Project: Give it a name and upload the public key you created in section 2

3.1.5. After creating the Project, get its Project ID

3.1.6. Use the Project ID and private key to create the object below:

const starkinfra = require('starkinfra');

// Get your private key from an environment variable or an encrypted database.
// This is only an example of a private key content. You should use your own key.
let privateKeyContent = `
-----BEGIN EC PARAMETERS-----
BgUrgQQACg==
-----END EC PARAMETERS-----
-----BEGIN EC PRIVATE KEY-----
MHQCAQEEIMCwW74H6egQkTiz87WDvLNm7fK/cA+ctA2vg/bbHx3woAcGBSuBBAAK
oUQDQgAE0iaeEHEgr3oTbCfh8U2L+r7zoaeOX964xaAnND5jATGpD/tHec6Oe9U1
IF16ZoTVt1FzZ8WkYQ3XomRD4HS13A==
-----END EC PRIVATE KEY-----
`;

let project = new starkinfra.Project({
    environment: 'sandbox',
    id: '5656565656565656',
    privateKey: privateKeyContent
});

3.2. To create Organization credentials in Sandbox:

3.2.1. Log into Starkinfra Sandbox

3.2.2. Go to Menu > Integrations

3.2.3. Click on the 'Organization public key' button

3.2.4. Upload the public key you created in section 2 (only a legal representative of the organization can upload the public key)

3.2.5. Click on your profile picture and then on the 'Organization' menu to get the Organization ID

3.2.6. Use the Organization ID and private key to create the object below:

const starkinfra = require('starkinfra');

//  Get your private key from an environment variable or an encrypted database.
//  This is only an example of a private key content. You should use your own key.
let privateKeyContent = `
-----BEGIN EC PARAMETERS-----
BgUrgQQACg==
-----END EC PARAMETERS-----
-----BEGIN EC PRIVATE KEY-----
MHQCAQEEIMCwW74H6egQkTiz87WDvLNm7fK/cA+ctA2vg/bbHx3woAcGBSuBBAAK
oUQDQgAE0iaeEHEgr3oTbCfh8U2L+r7zoaeOX964xaAnND5jATGpD/tHec6Oe9U1
IF16ZoTVt1FzZ8WkYQ3XomRD4HS13A==
-----END EC PRIVATE KEY-----
`;

let organization = new starkinfra.Organization({
    id: '5656565656565656',
    privateKey: privateKeyContent,
    environment: 'sandbox',
    workspaceId: null // You only need to set the workspaceId when you are operating a specific workspaceId
});


// To dynamically use your organization credentials in a specific workspaceId,
// you can use the organization.replace() method:
(async() => {
    let balance = await starkinfra.issuingBalance.get({
        user: starkinfra.organization.replace(organization, '4848484848484848')
    });
    console.log(balance);
})();

NOTE 1: Never hard-code your private key. Get it from an environment variable or an encrypted database.

NOTE 2: We support 'sandbox' and 'production' as environments.

NOTE 3: The credentials you registered in sandbox do not exist in production and vice versa.

4. Setting up the user

There are three kinds of users that can access our API: Organization, Project, and Member.

  • Project and Organization are designed for integrations and are the ones meant for our SDKs.
  • Member is the one you use when you log into our webpage with your e-mail.

There are two ways to inform the user to the SDK:

4.1 Passing the user as an argument in all functions:

const starkinfra = require('starkinfra');
(async() => {
    let balance = await starkinfra.issuingBalance.get({user: project}); // or organization
})();

4.2 Set it as a default user in the SDK:

const starkinfra = require('starkinfra');

starkinfra.user = project; // or organization

(async() => {
    let balance = await starkinfra.issuingBalance.get();
})();

Just select the way of passing the user that is more convenient to you. On all following examples, we will assume a default user has been set.

5. Setting up the error language

The error language can also be set in the same way as the default user:

const starkinfra = require('starkinfra');

starkinfra.language = 'en-US';

Language options are 'en-US' for English and 'pt-BR' for Brazilian Portuguese. English is the default.

Resource listing and manual pagination

Almost all SDK resources provide a query and a page function.

  • The query function provides a straightforward way to efficiently iterate through all results that match the filters you inform, seamlessly retrieving the next batch of elements from the API only when you reach the end of the current batch. If you are not worried about data volume or processing time, this is the way to go.
const starkinfra = require('starkinfra');

(async() => {
    let transactions = await starkinfra.transaction.query({
        after: '2020-01-01',
        before: '2020-03-01'
    });
  
    for await (let transaction of transactions) {
        console.log(transaction);
    }
})();
  • The page function gives you full control over the API pagination. With each function call, you receive up to 100 results and the cursor to retrieve the next batch of elements. This allows you to stop your queries and pick up from where you left off whenever it is convenient. When there are no more elements to be retrieved, the returned cursor will be null.
const starkinfra = require('starkinfra');

(async() => {
    let cursor = null;
    let page = null;
    while (true) {
        [page, cursor] = await starkinfra.transaction.page({ limit: 5, cursor: cursor });
        for (let transaction of page) {
            console.log(transaction);
        }
        if (cursor == null) {
            break;
        }
    }
})();

To simplify the following SDK examples, we will only use the query function, but feel free to use page instead.

Testing in Sandbox

Your initial balance is zero. For many operations in Stark Infra, you'll need funds in your account, which can be added to your balance by creating a starkbank.Invoice.

In the Sandbox environment, most of the created starkbank.Invoices will be automatically paid, so there's nothing else you need to do to add funds to your account. Just create a few starkbank.Invoices and wait around a bit.

In Production, you (or one of your clients) will need to actually pay this Pix Request for the value to be credited to your account.

Usage

Here are a few examples on how to use the SDK. If you have any doubts, use the built-in help() function to get more info on the desired functionality (for example: help(starkinfra.issuinginvoice.create))

Issuing

Query IssuingProducts

To take a look at the sub-issuer card products available to you, just run the following:

await (async() => {
    let products = await starkinfra.issuingProduct.query();

    for await (let product of products) {
        console.log(product);
    }
})();

This will tell which card products and card number prefixes you have at your disposal.

Create IssuingHolders

You can create cardholders to which your cards will be bound. They support spending rules that will apply to all underlying cards.

await (async() => {
    let holders = await starkinfra.issuingHolder.create([
        new starkinfra.IssuingHolder({
            'name': 'Iron Bank S.A.',
            'taxId': '012.345.678-90',
            'externalId': '1234',
            'tags': ['Traveler Employee'],
            'rules': [
                new starkinfra.IssuingRule({
                    'name': 'General USD',
                    'interval': 'day',
                    'amount': 100000,
                    'currencyCode': 'USD',
                })
            ]
        })
    ]);

    for await (let holder of holders) {
        console.log(holder);
    }
})();

Note: Instead of using IssuingHolder objects, you can also pass each element in dictionary format

Query IssuingHolders

You can query multiple holders according to filters.

await (async() => {
    let holders = await starkinfra.issuingHolder.query();
  
    for await (let holder of holders) {
        console.log(holder);
    }
})();

Cancel an IssuingHolder

To cancel a single Issuing Holder by its id, run:

await (async () => {
  let holder = await starkinfra.issuingHolder.cancel('5155165527080960');

  console.log(holder);
})();

Get an IssuingHolder

To get a single Issuing Holder by its id, run:

await (async() => {
    let holder = await starkinfra.issuingHolder.get('5155165527080960');
  
    console.log(holder);
})();

Query IssuingHolder logs

You can query holder logs to better understand holder life cycles.

await (async() => {
    let logs = await starkinfra.issuingHolder.log.query({'limit': 50});

    for await (let log of logs) {
        console.log(log);
    }
})();

Get an IssuingHolder log

You can also get a specific log by its id.

await (async() => {
    let log = await starkinfra.issuingHolder.log.get('5155165527080960');
  
    console.log(log);
})();

Create IssuingCards

You can issue cards with specific spending rules.

await (async() => {
    let cards = await starkinfra.issuingCard.create([
        new starkinfra.IssuingCard({
            'holderName': 'Developers',
            'holderTaxId': '012.345.678-90',
            'holderExternalId': '1234',
            'rules': [
                new starkinfra.IssuingRule({
                    'name': 'general',
                    'interval': 'week',
                    'amount': 50000,
                    'currencyCode': 'USD',
                })
            ]
        })
    ]);
  
    for await (let card of cards) {
        console.log(card);
    }
})();

Query IssuingCards

You can get a list of created cards given some filters.

await (async() => {
    let cards = await starkinfra.issuingCard.query({
        'after': '2022-01-01',
        'before': '2022-03-01'
    });
  
    for await (let card of cards) {
        console.log(card);
    }
})();

Get an IssuingCard

After its creation, information on a card may be retrieved by its id.

await (async() => {
    let card = await starkinfra.issuingCard.get('5155165527080960');
  
    console.log(card);
})();

Update an IssuingCard

You can update a specific IssuingCard by its id.

await (async() => {
   let card = await starkinfra.issuingCard.update('5155165527080960', {'status': 'blocked'});
  
    console.log(card);
})();

Cancel an IssuingCard

You can also cancel a card by its id.

await (async () => {
  let card = await starkinfra.issuingCard.cancel('5155165527080960');

  console.log(card);
})();

Query IssuingCard logs

Logs are pretty important to understand the life cycle of a card.

await (async() => {
    let logs = await starkinfra.issuingCard.log.query({'limit': 150});
  
    for await (let log of logs) {
        console.log(log);
    }
})();

Get an IssuingCard log

You can get a single log by its id.

await (async() => {
    let log = await starkinfra.issuingCard.log.get('5155165527080960');
  
    console.log(log);
})();

Query IssuingDesigns

You can get a list of available designs given some filters.

await (async() => {
    let design = await starkinfra.issuingDesign.query({
        limit: 1
    });
  
    for await (let design of designs) {
        console.log(design);
    }
})();

Get an IssuingDesign

Information on a design may be retrieved by its id.

await (async() => {
    let design = await starkinfra.issuingDesign.get('5747368922185728');
  
    console.log(design);
})();

Query IssuingEmbossingKits

You can get a list of created embossing kits given some filters.

await (async() => {
    let kits = await starkinfra.issuingEmbossingKit.query({
        'after': '2022-11-01',
        'before': '2022-12-01'
    });
  
    for await (let kit of kits) {
        console.log(kit);
    }
})();

Get an IssuingEmbossingKit

After its creation, information on an embossing kit may be retrieved by its id.

await (async() => {
    let kit = await starkinfra.issuingEmbossingKit.get('5155165527080960');
  
    console.log(kit);
})();

Query IssuingStocks

You can get a list of available stocks given some filters.

await (async() => {
    let stocks = await starkinfra.issuingStock.query({
        'after': '2023-01-01',
        'before': '2023-03-01'
    });
  
    for await (let stock of stocks) {
        console.log(stock);
    }
})();

Get an IssuingStock

Information on a stock may be retrieved by its id.

await (async() => {
    let stock = await starkinfra.issuingStock.get('5792731695677440');
  
    console.log(stock);
})();

Query IssuingStock logs

Logs are pretty important to understand the life cycle of a stock.

await (async() => {
    let logs = await starkinfra.issuingStock.log.query({'limit': 150});
  
    for await (let log of logs) {
        console.log(log);
    }
})();

Get an IssuingStock log

You can get a single log by its id.

await (async() => {
    let log = await starkinfra.issuingStock.log.get('5809977331548160');
  
    console.log(log);
})();

Create IssuingRestocks

You can order restocks for a specific IssuingStock.

await (async() => {
    let restocks = await starkinfra.issuingRestock.create([
        new starkinfra.issuingRestock({
            'count': 100,
            'stockId': "5136459887542272"
        })
    ]);
  
    for await (let restock of restocks) {
        console.log(restock);
    }
})();

Query IssuingRestocks

You can get a list of created restocks given some filters.

await (async() => {
    let restocks = await starkinfra.issuingRestock.query({
        'after': '2023-01-01',
        'before': '2023-03-01'
    });
  
    for await (let restock of restocks) {
        console.log(restock);
    }
})();

Get an IssuingRestock

After its creation, information on a restock may be retrieved by its id.

await (async() => {
    let restock = await starkinfra.issuingRestock.get('5664445921492992');
    
    console.log(restock);
})();

Query IssuingRestock logs

Logs are pretty important to understand the life cycle of a restock.

await (async() => {
    let logs = await starkinfra.issuingRestock.log.query({'limit': 150});
  
    for await (let log of logs) {
        console.log(log);
    }
})();

Get an IssuingRestock log

You can get a single log by its id.

await (async() => {
    let log = await starkinfra.issuingRestock.log.get('6310318875607040');
  
    console.log(log);
})();

Create IssuingEmbossingRequests

You can create a request to emboss a physical card.

await (async() => {
    let requests = await starkinfra.issuingEmbossingRequest.create([
        new starkinfra.issuingEmbossingRequest({
            'kitId': "5648359658356736", 
            'cardId': "5714424132272128", 
            'displayName1': "Antonio Stark", 
            'shippingCity': "Sao Paulo",
            'shippingCountryCode': "BRA",
            'shippingDistrict': "Bela Vista",
            'shippingService': "loggi",
            'shippingStateCode': "SP",
            'shippingStreetLine1': "Av. Paulista, 200",
            'shippingStreetLine2': "10 andar",
            'shippingTrackingNumber': "My_custom_tracking_number",
            'shippingZipCode': "12345-678",
            'embosserId': "5746980898734080"
        })
    ]);
  
    for await (let request of requests) {
        console.log(request);
    }
})();

Query IssuingEmbossingRequests

You can get a list of created embossing requests given some filters.

await (async() => {
    let requests = await starkinfra.issuingEmbossingRequest.query({
        'after': '2023-01-01',
        'before': '2023-03-01'
    });
  
    for await (let request of requests) {
        console.log(request);
    }
})();

Get an IssuingEmbossingRequest

After its creation, information on an embossing request may be retrieved by its id.

await (async() => {
    let card = await starkinfra.issuingEmbossingRequest.get('5191752558313472');
  
    console.log(card);
})();

Query IssuingEmbossingRequest logs

Logs are pretty important to understand the life cycle of an embossing request.

await (async() => {
    let logs = await starkinfra.issuingEmbossingRequest.log.query({'limit': 150});
  
    for await (let log of logs) {
        console.log(log);
    }
})();

Get an IssuingEmbossingRequest log

You can get a single log by its id.

await (async() => {
    let log = await starkinfra.issuingEmbossingRequest.log.get('5191752558313472');
  
    console.log(log);
})();

Create an IssuingTokenRequest

You can create a request that provides the required data you must send to the wallet app.

await (async() => {
    let request = await starkinfra.issuingTokenRequest.create({
        cardId: '5189831499972623',
        walletId: 'google',
        methodCode: 'app'
    });
  
    console.log(request);
})();

Process Token authorizations

It's easy to process token authorizations delivered to your endpoint. Remember to pass the signature header so the SDK can make sure it's StarkInfra that sent you the event. If you do not approve or decline the authorization within 2 seconds, the authorization will be denied.

const starkinfra = require('starkinfra');
const express = require('express')
const app = express()

app.use(express.raw({type: '*/*'}));

const port = 3000
app.post('/', async (req, res) => {
    try {
        let authorization = await starkinfra.issuingToken.parse({
            content: req.body.toString(),
            signature: req.headers['digital-signature']
        });
        res.send(
            starkinfra.issuingToken.responseAuthorization( // this optional method just helps you build the response JSON
                status: 'accepted',
                activationMethods: [
                    {
                        'type': 'app',
                        'value': 'com.subissuer.android'
                    },
                    {
                        'type': 'text',
                        'value': '** *****-5678'
                    }
                ],
                designId: '4584031664472031',
                tags=['token', 'user/1234']
            )
        );

        // or

        res.send(
            starkinfra.issuingToken.responseAuthorization(
                status: 'denied',
                reason: 'other'
            )
        );
    }
    catch (err) {
        console.log(err)
        res.status(400).end()
    }
})
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

Process Token activations

It's easy to process token activation notifications delivered to your endpoint. Remember to pass the signature header so the SDK can make sure it's Stark Infra that sent you the event.

const starkinfra = require('starkinfra');
const express = require('express')
const app = express()

app.use(express.raw({type: '*/*'}));

const port = 3000
app.post('/', async (req, res) => {
    try {
        let authorization = await starkinfra.issuingToken.parse({
            content: req.body.toString(),
            signature: req.headers['digital-signature']
        });
    }
    catch (err) {
        console.log(err)
        res.status(400).end()
    }
})
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

After that, you may generate the activation code and send it to the cardholder. The cardholder enters the received code in the wallet app. We'll receive and send it to tokenAuthorizationUrl for your validation. Completing the provisioning process.

const starkinfra = require('starkinfra');
const express = require('express')
const app = express()

app.use(express.raw({type: '*/*'}));

const port = 3000
app.post('/', async (req, res) => {
    try {
        res.send(
            starkinfra.issuingToken.responseActivation( // this optional method just helps you build the response JSON
                status: 'approved',
                tags: ['token', 'user/1234']
            )
        );

        // or

        res.send(
            starkinfra.issuingToken.responseActivation(
                status: 'denied',
                reason: 'other'
            )
        );
    }
    catch (err) {
        console.log(err)
        res.status(400).end()
    }
})
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

Get an IssuingToken

You can get a single token by its id.

await (async() => {
    let token = await starkinfra.issuingToken.get('5749080709922816');
  
    console.log(token);
})();

Query IssuingTokens

You can get a list of created tokens given some filters.

await (async() => {
    let tokens = await starkinfra.issuingInvoice.query({
        'limit': 5,
        'after': '2022-01-01',
        'before': '2023-03-01',
        'status': 'active',
        'cardIds': ['5656565656565656', '4545454545454545'],
        'externalIds': ['DSHRMC00002626944b0e3b539d4d459281bdba90c2588791', 'DSHRMC00002626941c531164a0b14c66ad9602ee716f1e85']
    });
  
    for await (let token of tokens) {
        console.log(token);
    }
})();

Update an IssuingToken

You can update a specific token by its id.

const starkinfra = require('starkinfra');

(async() => {
    let token = await starkinfra.issuingToken.update('5155165527080960', { status: 'blocked' });

    console.log(token);
})();

Cancel an IssuingToken

You can also cancel a token by its id.

const starkinfra = require('starkinfra');

(async() => {
    let token = await starkinfra.issuingToken.cancel('5155165527080960');

    console.log(token);
})();

Get an IssuingTokenDesign

You can get a single design by its id.

await (async() => {
    let token = await starkinfra.issuingTokenDesign.get('5749080709922816');
  
    console.log(token);
})();

Query IssuingTokenDesigns

You can get a list of available designs given some filters.

await (async() => {
    let designs = await starkinfra.issuingInvoice.query({
        'limit': 5,
        'after': '2022-01-01',
        'before': '2023-03-01'
    });
  
    for await (let design of designs) {
        console.log(design);
    }
})();

Get an IssuingTokenDesign PDF

A design PDF can be retrieved by its id.

await (async() => {
    let pdf = await starkinfra.issuingTokenDesign.pdf('5155165527080960');
    await fs.writeFile('token.pdf', pdf);
})();

Process Purchase authorizations

It's easy to process purchase authorizations delivered to your endpoint. If you do not approve or decline the authorization within 2 seconds, the authorization will be denied.

const starkinfra = require('starkinfra');
const express = require('express')
const app = express()

app.use(express.raw({type: '*/*'}));

const port = 3000
app.post('/', async (req, res) => {
    try {
        let authorization = await starkinfra.issuingAuthorization.parse({
            content: req.body.toString(),
            signature: req.headers['digital-signature']
        });
        res.send(
            starkinfra.issuingAuthorization.response( // this optional method just helps you build the response JSON
                status: 'accepted',
                amount: authorization.amount,
                tags: ['my-purchase-id/123']
            )
        );

        // or

        res.send(
            starkinfra.issuingAuthorization.response(
                status: 'denied',
                reason: 'other',
                tags: ['other-id/456']
            )
        );
    }
    catch (err) {
        console.log(err)
        res.status(400).end()
    }
})
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

Query IssuingPurchases

You can get a list of created purchases given some filters.

await (async() => {
    let purchases = await starkinfra.issuingPurchase.query({
        'after': '2022-01-01',
        'before': '2022-03-01'
    });
  
    for await (let purchase of purchases) {
        console.log(purchase);
    }
})();

Get an IssuingPurchase

After its creation, information on a purchase may be retrieved by its id.

await (async() => {
    let purchase = await starkinfra.issuingPurchase.get('5155165527080960');
  
    console.log(purchase);
})();

Query IssuingPurchase logs

Logs are pretty important to understand the life cycle of a purchase.

await (async() => {
    let logs = await starkinfra.issuingPurchase.log.query({'limit': 150});
  
    for await (let log of logs) {
        console.log(log);
    }
})();

Get an IssuingPurchase log

You can get a single log by its id.

await (async() => {
    let log = await starkinfra.issuingPurchase.log.get('5155165527080960');
  
    console.log(log);
})();

Create IssuingInvoices

You can create Pix invoices to transfer money from accounts you have in any bank to your Issuing balance, allowing you to run your issuing operation.

await (async() => {
    let invoice = await starkinfra.issuingInvoice.create({
        'amount': 1000,
        'name': 'Tony Stark',
        'taxId': '012.345.678-90',
        'tags': ['iron', 'suit']
    });
  
    console.log(invoice);
})();

Note: Instead of using Invoice objects, you can also pass each element in dictionary format

Get an IssuingInvoice

After its creation, information on an invoice may be retrieved by its id. Its status indicates whether it's been paid.

await (async() => {
    let invoice = await starkinfra.issuingInvoice.get('5155165527080960');
  
    console.log(invoice);
})();

Query IssuingInvoices

You can get a list of created invoices given some filters.

await (async() => {
    let invoices = await starkinfra.issuingInvoice.query({
        'after': '2022-01-01',
        'before': '2022-03-01'
    });
  
    for await (let invoice of invoices) {
        console.log(invoice);
    }
})();

Query IssuingInvoice logs

Logs are pretty important to understand the life cycle of an invoice.

await (async() => {
    let logs = await starkinfra.issuingInvoice.log.query({'limit': 50});
  
    for await (let log of logs) {
        console.log(log);
    }
})();

Get an IssuingInvoice log

You can also get a specific log by its id.

await (async() => {
    let log = await starkinfra.issuingInvoice.log.get('5155165527080960');
  
    console.log(log);
})();

Create IssuingWithdrawals

You can create withdrawals to send cash back from your Issuing balance to your Banking balance by using the Withdrawal resource.

await (async() => {
    let withdrawal = await starkinfra.issuingWithdrawal.create({
        'amount': 1000,
        'externalId': '123',
        'description': 'Sending back',
    });
  
    console.log(withdrawal);
})();

Note: Instead of using Withdrawal objects, you can also pass each element in dictionary format

Get an IssuingWithdrawal

After its creation, information on a withdrawal may be retrieved by its id.

await (async() => {
    let withdrawal = await starkinfra.issuingWithdrawal.get('5155165527080960');
  
    console.log(withdrawal);
})();

Query IssuingWithdrawals

You can get a list of created invoices given some filters.

await (async() => {
    let withdrawals = await starkinfra.issuingWithdrawal.query({
        'after': '2022-01-01',
        'before': '2022-03-01'
    });
  
    for await (let withdrawal of withdrawals) {
        console.log(withdrawal);
    }
})();

Note: the Organization user can only update a workspace with the Workspace ID set.

Get your IssuingBalance

To know how much money you have in your workspace, run:

await (async() => {
    let balance = await starkinfra.issuingBalance.get();
  
    console.log(balance);
})();

Query IssuingTransactions

To understand your balance changes (issuing statement), you can query transactions. Note that our system creates transactions for you when you make purchases, withdrawals, receive issuing invoice payments, for example.

await (async() => {
    let transactions = await starkinfra.issuingTransaction.query({
        after: '2020-01-01',
        before: '2020-03-01'
    });

    for await (let transaction of transactions) {
        console.log(transaction);
    }
})();

Get an IssuingTransaction

You can get a specific transaction by its id:

await (async() => {
    let transaction = await starkinfra.issuingTransaction.get('5155165527080960');
    
    console.log(transaction);
})();

Pix

Create PixRequests

You can create a Pix request to transfer money from one of your users to anyone else:

const starkinfra = require('starkinfra');

(async() => {
    let requests = await starkinfra.pixRequest.create([
        {    
            amount: 1000,
            externalId: 'my-external-id:021243543252345',
            senderAccountNumber: '76543-8',
            senderBranchCode: '2201',
            senderAccountType: 'checking',
            senderName: 'checking',
            senderTaxId: '594.739.480-42',
            receiverBankCode: '341',
            receiverAccountNumber: '00000-0',
            receiverBranchCode: '0001',
            receiverAccountType: 'checking',
            receiverName: 'Daenerys Targaryen Stormborn',
            receiverTaxId: '012.345.678-90',
            endToEndId: endToEndId.create('20018183')
        }
    ])

    for (let request of requests) {
        console.log(request);
    }
})();

Note: Instead of using PixRequest objects, you can also pass each element in dictionary format

Query PixRequests

You can query multiple Pix requests according to filters.

(async() => {
    let requests = await starkinfra.pixRequest.query({
        after: '2020-01-01',
        before: '2020-03-01'
    });

    for await (let request of requests) {
        console.log(request);
    }
})();

Get a PixRequest

After its creation, information on a Pix request may be retrieved by its id. Its status indicates whether it has been paid.

const starkinfra = require('starkinfra');

(async() => {
    let request = await starkinfra.pixRequest.get('5155165527080960');
    console.log(request);
})();

Process inbound PixRequest authorizations

It's easy to process authorization requests that arrived at your endpoint. Remember to pass the signature header so the SDK can make sure it's StarkInfra that sent you the event. If you do not approve or decline the authorization within 1 second, the authorization will be denied.

const starkinfra = require('starkinfra');
const express = require('express')
const app = express()

app.use(express.raw({type: '*/*'}));

const port = 3000
app.post('/', async (req, res) => {
    try {
        let reversal = await starkinfra.pixRequest.parse({
            content: req.body.toString(),
            signature: req.headers['Digital-Signature']
        });
        res.end()
    }
    catch (err) {
        console.log(err)
        res.status(400).end()
    }
})
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

Query PixRequest logs

You can query Pix request logs to better understand Pix request life cycles.

const starkinfra = require('starkinfra');

(async() => {
    let logs = await starkinfra.pixRequest.log.query({limit: 50});
  
    for await (let log of logs) {
        console.log(log);
    }
})();

Get a PixRequest log

You can also get a specific log by its id.

const starkinfra = require('starkinfra');

(async() => {
    let log = await starkinfra.pixRequest.log.get('5155165527080960');
    console.log(log);
})();

Create PixReversals

You can reverse a PixRequest either partially or totally using a PixReversal.

const starkinfra = require('starkinfra');

(async() => {
    let revrersals = await starkinfra.pixReversal.create([
        {
            amount: 1000,
            externalId: 'my-external-id:17238435823958934',
            endToEndId: 'E00000000202201060100rzsJzG9PzMg',
            reason: 'fraud'
        }
    ])
  
    for (let revrersal of revrersals) {
        console.log(revrersal);
    }
})();

Query PixReversals

You can query multiple Pix reversals according to filters.

(async() => {
    let requests = await starkinfra.pixRequest.query({
        after: '2020-01-01',
        before: '2020-03-01'
    });
  
    for await (let request of requests) {
        console.log(request);
    }
})();

Get a PixReversal

After its creation, information on a Pix reversal may be retrieved by its id. Its status indicates whether it has been successfully processed.

const starkinfra = require('starkinfra');

(async() => {
    let reversal = await starkinfra.pixReversal.get('5155165527080960');
    console.log(reversal);
})();

Process inbound PixReversal authorizations

It's easy to process authorization requests that arrived at your endpoint. Remember to pass the signature header so the SDK can make sure it's StarkInfra that sent you the event. If you do not approve or decline the authorization within 1 second, the authorization will be denied.

const starkinfra = require('starkinfra');
const express = require('express')
const app = express()

app.use(express.raw({type: '*/*'}));

const port = 3000
app.post('/', async (req, res) => {
    try {
        let reversal = await starkinfra.pixReversal.parse({
            content: req.body.toString(),
            signature: req.headers['Digital-Signature']
        });
        res.end()
    }
    catch (err) {
        console.log(err)
        res.status(400).end()
    }
})
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

Query PixReversal logs

You can query Pix reversal logs to better understand their life cycles.

const starkinfra = require('starkinfra');

(async() => {
    let logs = await starkinfra.pixReversal.log.query({limit: 50});
  
    for await (let log of logs) {
        console.log(log);
    }
})();

Get a PixReversal log

You can also get a specific log by its id.

const starkinfra = require('starkinfra');

(async() => {
    let log = await starkinfra.pixReversal.log.get('5155165527080960');
    console.log(log);
})();

Get your PixBalance

To see how much money you have in your account, run:

const starkinfra = require('starkinfra');

(async() => {
    let balance = await starkinfra.pixBalance.get();
    console.log(balance)
})();

Create a PixStatement

Statements are generated directly by the Central Bank and are only available for direct participants. To create a statement of all the transactions that happened on your account during a specific day, run:

const starkinfra = require('starkinfra');

(async() => {
    let statement = await starkinfra.pixStatement.create(
        {
            after: '2022-01-01', // This is the date that you want to create a statement.
            before: '2022-01-01', // After and before must be the same date.
            type: 'transaction' // Options are 'interchange', 'interchangeTotal', 'transaction'.
        }
    )
    console.log(statement)
});

Query PixStatements

You can query multiple Pix statements according to filters.

(async() => {
    let statements = await starkinfra.pixStatement.query({
        limit: 10,
    });
  
    for await (let statement of statements) {
        console.log(statement);
    }
})();

Get a PixStatement

Statements are only available for direct participants. To get a Pix statement by its id:

const starkinfra = require('starkinfra');

(async() => {
    let request = await starkinfra.pixRequest.get('5155165527080960');
    console.log(request);
})();

Get a PixStatement .csv file

To get the .csv file corresponding to a Pix statement using its id, run:

const starkinfra = require('starkinfra');
const fs = require('fs').promises;

(async() => {
    let csv = await starkinfra.pixStatement.csv('5155165527080960');
    await fs.writeFile('statement.zip', csv);
})();

Create a PixKey

You can create a Pix Key to link a bank account information to a key id:

const starkinfra = require('starkinfra');

(async() => {
    let key = await starkinfra.pixKey.create({
        accountCreated: '2022-02-01T00:00:00.00',
        accountNumber: '00000',
        accountType: 'savings',
        branchCode: '0000',
        name: 'Jamie Lannister',
        taxId: '012.345.678-90',
        id: '+5511989898989',
    });
    console.log(key);
})();

Query PixKeys

You can query multiple Pix keys you own according to filters.

const starkinfra = require('starkinfra');

(async() => {
    let keys = await starkinfra.pixKey.query({
        'limit': 1,
        'after': '2022-01-01',
        'before': '2022-01-12',
        'status': 'registered',
        'tags': ['iron', 'bank'],
        'ids': ['+5511989898989'],
        'type': 'phone'
    });
    for await (let key of keys) {
        console.log(key);
    }
})();

Get a PixKey

Information on any Pix key may be retrieved by its id and the tax ID of the consulting agent. If the request results in the creation of a Pix Request, the same end to end id should be used. If this parameter is not passed, one endToEndId will be automatically created.

const starkinfra = require('starkinfra');

(async() => {
    let key = await starkinfra.pixKey.get('5155165527080960', '012.345.678-90', { endToEndId: starkinfra.endToEndId.create(bankCode) });
    console.log(key);
})();

Patch a PixKey

Update the account information linked to a Pix Key.

const starkinfra = require('starkinfra');

(async() => {
    let key = await starkinfra.pixKey.update('+5511989898989', 'branchTransfer', { name: 'Jamie Lannister' });
    console.log(key);
})();

Cancel a PixKey

Cancel a specific Pix Key using its id.

const starkinfra = require('starkinfra');

(async () => {
  let key = await starkinfra.pixKey.cancel('5155165527080960');
  console.log(key);
})();

Query PixKey logs

You can query Pix key logs to better understand a Pix key life cycle.

const starkinfra = require('starkinfra');

(async() => {
    const logs = await starkinfra.pixKey.log.query({
        limit: 50,
        ids: ['5729405850615808'],
        after: '2020-04-01',
        before: '2021-04-30',
        types: ['created'],
        keyIds: ['+5511989898989'],
    });
    for await (let log of logs) {
        console.log(log);
    }
})();

Get a PixKey log

You can also get a specific log by its id.

const starkinfra = require('starkinfra');

(async() => {
    let log = await starkinfra.pixKey.log.get('5155165527080960');
    console.log(log);
})();

Create a PixClaim

You can create a Pix claim to request the transfer of a Pix key from another bank to one of your accounts:

const starkinfra = require('starkinfra');

(async() => {
    let claim = await starkinfra.pixClaim.create({
        accountCreated: '2022-02-01T00:00:00.00',
        accountNumber: '5692908409716736',
        accountType: 'checking',
        branchCode: '0000',
        name: 'testKey',
        taxId: '012.345.678-90',
        keyId: '+5511989898989'
    });
    
    console.log(claim);
})();

Query PixClaims

You can query multiple Pix claims according to filters.

const starkinfra = require('starkinfra');

(async() => {
    let claims = await starkinfra.pixClaim.query({
        limit: 1,
        after: '2022-01-01',
        before: '2022-01-12',
        status: 'registered',
        ids: ['5729405850615808'],
        type: 'ownership',
        flow: 'in',
        keyType: 'phone',
        keyId: '+5511989898989'
    });
    
    for await (let claim of claims) {
        console.log(claim);
    }
})();

Get a PixClaim

After its creation, information on a Pix claim may be retrieved by its id.

const starkinfra = require('starkinfra');

(async() => {
    let claim = await starkinfra.pixClaim.get('5155165527080960');
    console.log(claim);
})();

Patch a PixClaim

A Pix Claim can be confirmed or canceled by patching its status. A received Pix Claim must be confirmed by the donor to be completed. Ownership Pix Claims can only be canceled by the donor if the reason is 'fraud'. A sent Pix Claim can also be canceled.

const starkinfra = require('starkinfra');

(async() => {
    let claim = await starkinfra.pixClaim.update('5155165527080960', 'confirmed');
    console.log(claim);
})();

Query PixClaim logs

You can query Pix claim logs to better understand Pix claim life cycles.

const starkinfra = require('starkinfra');

(async() => {
    const logs = await starkinfra.pixClaim.log.query({
        limit: 50,
        ids: ['5729405850615808'],
        after: '2022-01-01',
        before: '2022-01-20',
        types: ['registered'],
        claimIds: ['5719405850615809']
    });
    for await (let log of logs) {
        console.log(log);
    }
})();

Get a PixClaim log

You can also get a specific log by its id.

const starkinfra = require('starkinfra');

(async() => {
    let log = await starkinfra.pixClaim.log.get('5155165527080960');
    console.log(log);
})();

Create a PixDirector

To register the Pix director contact information at the Central Bank, run the following:

const starkinfra = require('starkinfra');

(async() => {
    let director = await starkinfra.pixDirector.create({
        name: 'Edward Stark',
        taxId: '03.300.300/0001-00',
        phone: '+55-11999999999',
        email: '[email protected]',
        password: '12345678',
        teamEmail: '[email protected]',
        teamPhones: ['+55-11988889999', '+55-11988889998']
    });
    
    console.log(director);
})();

Create PixInfractions

Pix infractions are used to report transactions that raise fraud suspicion, to request a refund or to reverse a refund. Pix infractions can be created by either participant of a transaction.

const starkinfra = require('starkinfra');

(async() => {
    let infractions = await starkinfra.pixInfraction.create([
        {
            referenceId: 'E20018183202201201450u34sDGd19lz',
            type: 'fraud'
        }
    ]);
    for (let infraction of infractions) {
        console.log(infraction);
    }
})();

Query PixInfractions

You can query multiple infraction reports according to filters.

const starkinfra = require('starkinfra');

(async() => {
    let reports = await starkinfra.pixInfraction.query({
        limit: 1,
        after: '2022-01-01',
        before: '2022-01-12',
        status: 'registered',
        ids: ['5729405850615808']
    });
    
    for await (let report of reports) {
        console.log(report);
    }
})();

Get a PixInfraction

After its creation, information on a Pix infraction may be retrieved by its id.

const starkinfra = require('starkinfra');

(async() => {
    let report = await starkinfra.pixInfraction.get('5155165527080960');
    console.log(report);
})();

Patch a PixInfraction

A received Pix infraction can be confirmed or declined by patching its status. After a Pix infraction is patched, its status changes to closed.

const starkinfra = require('starkinfra');

(async() => {
    let report = await starkinfra.pixInfraction.update('5155165527080960', 'agreed');
    console.log(report);
})();

Cancel a PixInfraction

Cancel a specific Pix infraction using its id.

const starkinfra = require('starkinfra');

(async () => {
  let report = await starkinfra.pixInfraction.cancel('5155165527080960');
  console.log(report);
})();

Query PixInfraction logs

You can query Pix infraction logs to better understand their life cycles.

const starkinfra = require('starkinfra');

(async() => {
    const logs = await starkinfra.pixInfraction.log.query({
        limit: 50,
        ids: ['5729405850615808'],
        after: '2022-01-01',
        before: '2022-01-20',
        types: ['registered'],
        reportIds: ['5719405850615809']
    });
    for await (let log of logs) {
        console.log(log);
    }
})();

Get a PixInfraction log

You can also get a specific log by its id.

const starkinfra = require('starkinfra');

(async() => {
    let log = await starkinfra.pixInfraction.log.get('5155165527080960');
    console.log(log);
})();

Create PixChargebacks

Pix chargebacks can be created when fraud is detected on a transaction or a system malfunction results in an erroneous transaction.

const starkinfra = require('starkinfra');

(async() => {
    let chargebacks = await starkinfra.pixChargeback.create([
        {
            amount: 100,
            referenceId: 'E20018183202201201450u34sDGd19lz',
            reason: 'fraud',
        }
    ]);

    for (let chargeback of chargebacks) {
        console.log(chargeback);
    }
})();

Query PixChargebacks

You can query multiple Pix chargebacks according to filters.

const starkinfra = require('starkinfra');

(async() => {
    let requests = await starkinfra.pixChargeback.query({
        limit: 1,
        after: '2022-01-01',
        before: '2022-01-12',
        status: 'registered',
        ids: ['5729405850615808']
    });
    
    for await (let request of requests) {
        console.log(request);
    }
})();

Get a PixChargeback

After its creation, information on a Reversal Request may be retrieved by its id.

const starkinfra = require('starkinfra');

(async() => {
    let request = await starkinfra.pixChargeback.get('5155165527080960');
    console.log(request);
})();

Patch a PixChargeback

A received Reversal Request can be accepted or rejected by patching its status. After a Reversal Request is patched, its status changes to closed.

const starkinfra = require('starkinfra');

(async() => {
    let chargeback = starkinfra.pixChargeback.update(
        '5719405850615809',
        'accepted',
        {
            analysis:'Upon investigation fraud was confirmed.',
            reversalReferenceId:'D20018183202201201450u34sDGd19lz'
        }
    )
    console.log(chargeback)
})()

Cancel a PixChargeback

Cancel a specific Reversal Request using its id.

const starkinfra = require('starkinfra');

(async () => {
  let request = await starkinfra.pixChargeback.cancel('5155165527080960');
  console.log(request);
})();

Query PixChargeback logs

You can query Pix chargeback logs to better understand Pix chargeback life cycles.

const starkinfra = require('starkinfra');

(async() => {
    const logs = await starkinfra.pixChargeback.log.query({
        limit: 50,
        ids: ['5729405850615808'],
        after: '2022-01-01',
        before: '2022-01-20',
        types: ['created'],
        requestIds: ['5155165527080960']
    });
    for await (let log of logs) {
        console.log(log);
    }
})();

Get a PixChargeback log

You can also get a specific log by its id.

const starkinfra = require('starkinfra');

(async() => {
    let log = await starkinfra.pixChargeback.log.get('5155165527080960');
    console.log(log);
})();

Query PixDomains

Here you can list all Pix domains registered at the Brazilian Central Bank. The PixDomain object displays the domain name and the QR Code domain certificates of registered Pix participants able to issue dynamic QR Codes.

const starkinfra = require('starkinfra');

(async() => {
    let pixDomains = await starkinfra.pixDomain.query();
    for await (let certificate of pixDomains) {
        console.log(certificate);
    }
})();

Create StaticBrcodes

StaticBrcodes store account information via a BR code or an image (QR code) that represents a PixKey and a few extra fixed parameters, such as an amount and a reconciliation ID. They can easily be used to receive Pix transactions.

const starkinfra = require('starkinfra');

(async() => {
    let brcodes = await starkinfra.staticBrcode.create([
        new starkinfra.StaticBrcode({
            name: 'Jamie Lannister',
            keyId: '+5511988887777',
            amount: 100,
            reconciliationId: '123',
            city: 'São Paulo'
        })
    ]);

    for await (let brcode of brcodes) {
        console.log(brcode);
    }
})();

Query StaticBrcodes

You can query multiple StaticBrcodes according to filters.

const starkinfra = require('starkinfra');

(async() => {
    let brcodes = await starkinfra.staticBrcode.query({
        limit: 1,
        after: '2022-06-01',
        before: '2022-06-30',
        uuids: ['5ddde28043a245c2848b08cf315effa2']
    });
    
    for await (let brcode of brcodes) {
        console.log(brcode);
    }
})();

Get a StaticBrcode

After its creation, information on a StaticBrcode may be retrieved by its UUID.

const starkinfra = require('starkinfra');

(async() => {
    let brcode = await starkinfra.staticBrcode.get('5ddde28043a245c2848b08cf315effa2');
    
    console.log(brcode);
})();

Create DynamicBrcodes

BR codes store information represented by Pix QR Codes, which are used to send or receive Pix transactions in a convenient way. DynamicBrcodes represent charges with information that can change at any time, since all data needed for the payment is requested dynamically to an URL stored in the BR Code. Stark Infra will receive the GET request and forward it to your registered endpoint with a GET request containing the UUID of the BR code for identification.

const starkinfra = require('starkinfra')

(async() => {
    let brcodes = await starkinfra.dynamicBrcode.create([
        new starkinfra.DynamicBrcode({
            name: "Jamie Lannister",
            city: "Rio de Janeiro",
            externalId: "my_unique_id_05",
            type: "instant"
        })
    ]);

    for (let brcode of brcodes) {
        console.log(brcode);
    }
})();

Query DynamicBrcodes

You can query multiple DynamicBrcodes according to filters.

const starkinfra = require('starkinfra')

(async() => {
    let brcodes = await starkinfra.dynamicBrcode.query({
        limit: 1,
        after: '2022-07-01',
        before: '2022-07-30',
        uuids: ['47bfcd05713f4b3aa6a94a24f295de55']
    });
    
    for await (let brcode of brcodes) {
        console.log(brcode);
    }
})();

Get a DynamicBrcode

After its creation, information on a DynamicBrcode may be retrieved by its UUID.

const starkinfra = require('starkinfra')

(async() => {
    let brcode = await starkinfra.dynamicBrcode.get('47bfcd05713f4b3aa6a94a24f295de55');
    
    console.log(brcode);
})();

Verify a DynamicBrcode read

When a DynamicBrcode is read by your user, a GET request will be made to the your regitered URL to retrieve additional information needed to complete the transaction. Use this method to verify the authenticity of a GET request received at your registered endpoint. If the provided digital signature does not check out with the StarkInfra public key, a starkinfra.error.InvalidSignatureError will be raised.

const starkinfra = require('starkinfra');
const express = require('express')
const app = express()

app.use(express.raw({type: '*/*'}));

const port = 3000
app.get('/', async (req, res) => {
    let uuid = await starkinfra.dynamicBrcode.verify({
        uuid: getUuid(req.url), // you should implement this method to extract the uuid from the request's URL
        signature: req.headers["Digital-Signature"],
    });
})
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`));

Answer to a Due DynamicBrcode read

When a Due DynamicBrcode is read by your user, a GET request containing the BR code UUID will be made to your registered URL to retrieve additional information needed to complete the transaction.

The GET request must be answered in the following format within 5 seconds and with an HTTP status code 200.

const starkinfra = require('starkinfra');
const express = require('express')
const app = express()

app.use(express.raw({type: '*/*'}));

const port = 3000
app.get('/', async (req, res) => {
    try {
        let uuid = await starkinfra.dynamicBrcode.verify({
            uuid: getUuid(req.url), // you should implement this method to extract the uuid from the request's URL
            signature: req.headers["Digital-Signature"],
        });

        invoice = await get_my_invoice(uuid) // you should implement this method to get the information of the BR code from its uuid

        res.send(
            starkinfra.dynamicbrcode.responseDue({ // this optional method just helps you build the response JSON
                version: invoice.version,
                created: invoice.created,
                due: invoice.due,
                keyId: invoice.keyId,
                status: invoice.status,
                reconciliationId: invoice.reconciliationId,
                amount: invoice.amount,
                senderName: invoice.senderName,
                senderTaxId: invoice.senderTaxId,
                receiverName: invoice.receiverName,
                receiverTaxId: invoice.receiverTaxId,
                receiverStreetLine: invoice.receiverStreetLine,
                receiverCity: invoice.receiverCity,
                receiverStateCode: invoice.receiverStateCode,
                receiverZipCode: invoice.receiverZipCode
            })
        );
    }
    catch (err) {
        console.log(err)
        res.status(400).end()
    }
})
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`));

Answer to an Instant DynamicBrcode read

When an Instant DynamicBrcode is read by your user, a GET request containing the BR code UUID will be made to your registered URL to retrieve additional information needed to complete the transaction.

The get request must be answered in the following format within 5 seconds and with an HTTP status code 200.

const starkinfra = require('starkinfra');
const express = require('express')
const app = express()

app.use(express.raw({type: '*/*'}));

const port = 3000
app.get('/', async (req, res) => {
    try {
        let uuid = await starkinfra.dynamicBrcode.verify({
            uuid: getUuid(req.url), // you should implement this method to extract the uuid from the request's URL
            signature: req.headers["Digital-Signature"],
        });

        invoice = await get_my_invoice(uuid) // you should implement this method to get the information of the BR code from its uuid

        res.send(
            starkinfra.dynamicbrcode.responseInstant({ // this optional method just helps you build the response JSON
                version: invoice.version,
                created: invoice.created,
                keyId: invoice.keyId,
                status: invoice.status,
                reconciliationId: invoice.reconciliationId,
                amount: invoice.amount,
                cashierType: invoice.cashierType,
                cashierBankCode: invoice.cashierBankCode,
                cashAmount: invoice.cashAmount
            })
        );
    }
    catch (err) {
        console.log(err)
        res.status(400).end()
    }
})
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`));

Create BrcodePreviews

You can create BrcodePreviews to preview BR Codes before paying them.

const starkinfra = require('starkinfra')

(async () => {
    let previews = await starkinfra.brcodePreview.create([
        new starkinfra.BrcodePreview({
            id: "00020126420014br.gov.bcb.pix0120nedstark@hotmail.com52040000530398654075000.005802BR5909Ned Stark6014Rio de Janeiro621605126674869738606304FF71",
            payerId: "20.018.183/0001-80"
        }),
        new starkinfra.BrcodePreview({
            id: "00020126430014br.gov.bcb.pix0121aryastark@hotmail.com5204000053039865406100.005802BR5910Arya Stark6014Rio de Janeiro6216051262678188104863042BA4",
            payerId: "20.018.183/0001-80"
        }),
    ])

    for (let preview of previews) {
        console.log(preview);
    }
})();

Lending

If you want to establish a lending operation, you can use Stark Infra to create a CCB contract. This will enable your business to lend money without requiring a banking license, as long as you use a Credit Fund or Securitization company.

The required steps to initiate the operation are:

  1. Have funds in your Credit Fund or Securitization account
  2. Request the creation of an Identity Check for the credit receiver (make sure you have their documents and express authorization)
  3. (Optional) Create a Credit Simulation with the desired installment plan to display information for the credit receiver
  4. Create a Credit Note with the desired installment plan

Create CreditNotes

You can create a Credit Note to generate a CCB contract:

const starkinfra = require('starkinfra');

(async() => {
    let notes = await starkinfra.creditNote.create([
        {
            templateId: '5745297539989504',
            name: 'Jamie