Requirements

• nodejs >= 4.0

Usage

var citrus = require("citrusjs");

Table of Contents

• 1. Configure merchant details
• 2. Fetch eligible payment options
• 3. Process Payments
  • 3.1 Create a Transaction
  • 3.2 Add User details
  • 3.3 Add payment info
  • 3.4 Get payment URL
• 4. Pay using saved cards / banks
  • 4.1 Fetch user"s saved cards / banks
  • 4.2 Get payment URL

1. Configure merchant details

// Initialize merchant
var merchant = new citrus.Merchant({
    "env"             : citrus.Merchant.Env.SANDBOX, // or citrus.Merchant.Env.PRODUCTION
    "access_key"      : "MERCHANT_ACCESS_KEY",
    "secret_key"      : "MERCHANT_SECRET_KEY",
    "vanity_url"      : "VANITY_URL",
    "js_signin_id"    : "JS_SIGNIN_ID",              // optional
    "js_signin_secret": "JS_SIGNING_SECRET"          // optional
});

The js_signin_id and js_signin_secret is required when fetching user payment modes (see section 4)

2. Fetch eligible payment options enabled for merchant

merchant.getEligibleInstruments()
    .then(function (opts) {
        console.log(opts);
    });

OUTPUT: The output is an array of citrus.Instrument.Type.NET_BANKING type. (See /src/types.proto for details). Relevant fields are displayed below:

[
    {
        "type"       : citrus.Instrument.Type.NET_BANKING,
        "bank_name"  : "AXIS Bank",
        "bank_code"  : "CID002"
    },
    // ...
    {
        "type"       : citrus.Instrument.Type.CREDIT_CARD,
        "card_scheme": citrus.Instrument.CardScheme.VISA
    },
    {
        "type"       : citrus.Instrument.Type.DEBIT_CARD,
        "card_scheme": citrus.Instrument.CardScheme.MAESTRO
    },
    // ...
]

3. Process payments

3.1 Create a transaction

var txn = new citrus.Transaction({
    "id"           : "TRANS_" + Number(new Date()), // some unique txn id
    "amount"       : 10.00,
    "currency"     : "INR",
    "return_url"   : "http://mysite.com/postpay",
    "notify_url"   : "http://mysite.com/notifypay",
    "custom_params": [
        { "name": "foo", "value": "bar" },
        // ...
    ]
});

To generate a signature for the transaction:

merchant.generateRequestSignature(txn);

3.2 Add user details

var usr = new citrus.User({
    "email"   : "[email protected]",
    "fname"   : "John",
    "lname"   : "Doe",
    "mobile"  : "9999999999",
    "username": "CITRUS_USERNAME", // optional
    "password": "CITRUS_PASSWORD", // optional
    "address" : {
        "street1": "ADDRESS LINE 1",
        "street2": "ADDRESS LINE 2",
        "city"   : "CITY",
        "state"  : "STATE",
        "country": "INDIA",
        "pincode": "560102"
    }
});`

Fields username and password are required only when fetching user"s saved cards (see section 4).
Address can also be set separately:

usr.set("address", new citrus.Address({
    "street1": "ADDRESS LINE 1",
    "street2": "ADDRESS LINE 2",
    "city"   : "CITY",
    "state"  : "STATE",
    "country": "INDIA",
    "pincode": "560102"
}));

3.3 Add payment info

var paymentMode = new citrus.Instrument({
    // ...
});

For card payment:

paymentMode = new citrus.Instrument({
    "type"             : citrus.Instrument.Type.CREDIT_CARD, // or citrus.Instrument.Type.DEBIT_CARD
    "card_scheme"      : citrus.Instrument.CardScheme.VISA,
    "card_number"      : "4111111111111111",
    "card_owner_name"  : "John Doe",
    "card_expiry_month": 11,
    "card_expiry_year" : 2018,
    "card_cvv"         : "123"
});

For netbanking:

paymentMode = new citrus.Instrument({
    "type"     : citrus.Instrument.Type.NET_BANKING,
    "bank_name": "AXIS Bank",
    "bank_code": "CID002"
});

3.4 Get payment URL

sz.getPaymentUrl(usr, paymentMode, txn)
    .then(function (url) {
        console.log("pay url: ", url);
        // redirect user to payment url (client side redirect)
    });

4. Pay using saved cards / banks

4.1 Fetch user"s saved cards / banks

ENSURE THAT

• While creating merchant object, you set properties js_signin_id and js_signin_secret
• While creating user object, you set properties username and password

merchant.getUserInstruments(usr)
    .then(function (instruments) {
        console.log(instruments);
    });

OUTPUT: The output is an array of citrus.Instrument.Type.NET_BANKING type. (See /src/types.proto for details). Relevant fields are displayed below:

[
    { 
        "type"             : citrus.Instrument.Type.DEBIT_CARD,  // or citrus.Instrument.Type.CREDIT_CARD
        "card_scheme"      : citrus,Instrument.CardScheme.VISA,
        "card_number"      : "XXXXXXXXXXXX1234",
        "card_expiry_month": 10,
        "card_expiry_year" : 2020,
        "citrus_token"     : "ajlklajsd921kj321l39asldkja921lk3",
        "citrus_name"      : "Debit Card (1234)"
    },
    { 
        "type"             : citrus.Instrument.Type.NET_BANKING,
        "bank_name"        : "ICICI Corporate Bank",
        "citrus_token"     : "khe7312kjh8ah3k128ayhje81hjkdad8k",
        "citrus_name"      : "ICICI bank"
    }
]

4.2 Get payment URL

The method for getting payment URL is the same as described in [section 3.4]((#34-get-payment-url). Just add the CVV number input by user before fetching the url:

paymentMode = new citrus.Instrument({
    "type"             : citrus.Instrument.Type.CREDIT_CARD, // or citrus.Instrument.Type.DEBIT_CARD
    "citrus_token"     : "ajlklajsd921kj321l39asldkja921lk3",
    "card_cvv"         : "123"                               // input by user
});

In case of netbanking:

paymentMode = new citrus.Instrument({
    "type"             : citrus.Instrument.Type.NET_BANKING,
    "citrus_token"     : "khe7312kjh8ah3k128ayhje81hjkdad8k",
});

And then fetch URL:

sz.getPaymentUrl(usr, paymentMode, txn)
    .then(function (url) {
        console.log("pay url: ", url);
        // redirect user to payment url (client side redirect)
    });