Commercetools

Last updated: April 29, 2022

Learn how to get started with our integration for commercetools.

Information

This guide assumes that you have already created a commercetools project. If you would like to test this integration, please contact partnerships.

Commercetools is an ecommerce platform that offers true cloud-native, headless commerce integration capabilities. The plugin makes it easier for those already using commercetools to integrate with Checkout.com.

Our integration has two parts:

Configure our API Client in the commercetools Merchant Center.
Set up the frontend, which involves integrating Frames for card payments and our Klarna SDK for Klarna payments.

If you haven't already, create a test Checkout.com account.

To set up our commercetools API Client, you'll need your public and secret API keys, which are generated automatically upon account creation.

Log in to your test account on the Hub sandbox.
In the left menu, go to Settings > Channels, and make a note of your secret and public API keys.

Information

Webhooks are notifications that we send when an event occurs on your account. For example, when a payment is captured. These are used by commercetools to update the status of an order. Read more about webhooks.

Scroll down to the Webhooks section of the page and select New webhook.
Enter the following URLs:

Webhook URL	Events
`https://commercetools.integration.checkout.com/api/webhooks/payments`	`payment_approved` `payment_declined` `payment_pending` `payment_canceled`
`https://commercetools.integration.checkout.com/api/webhooks/transactions`	`payment_captured` `payment_capture_pending` `payment_capture_declined` `payment_refunded` `payment_refund_pending` `payment_refund_declined` `payment_voided` `payment_void_declined` `payment_expired`

Webhook URL	Events
`https://commercetools.integration.sandbox.checkout.com/api/webhooks/payments`	`payment_approved` `payment_declined` `payment_pending` `payment_canceled`
`https://commercetools.integration.sandbox.checkout.com/api/webhooks/transactions`	`payment_captured` `payment_capture_pending` `payment_capture_declined` `payment_refunded` `payment_refund_pending` `payment_refund_declined` `payment_voided` `payment_void_declined` `payment_expired`

Select API - v2.
Select Create webhook.

Note

Correctly configuring your webhooks is important; if they're incorrectly formatted, our API Client will not work.

When a webhook is triggered on our side, our integration is creating or updating a transaction in commercetools to reflect the change.

These transactions are attached to a payment, and there may be multiple transactions attached to a single payment. This is all done automatically, and you don't have to do anything other than setting up the webhooks and configuring the API client.

You can see these interactions in your commercetools Merchant Center by going to Order list > Order and selecting the Payment tab.

Webhook	Transaction created or updated?	Transaction name	New status of the transaction (if needed)
`payment_approved`	Created	Authorization	Success
`payment_declined`	Created	Authorization	Failure
`payment_pending`	Created	Authorization	Pending
`payment_captured`	Created or updated	Charge	Success
`payment_capture_pending`	Created	Charge	Pending
`payment_capture_declined`	Created	Charge	Failure
`payment_refunded`	Created or updated	Refund	Success
`payment_refund_pending`	Created	Refund	Pending
`payment_refund_declined`	Created or updated	Refund	Failure
`payment_voided`	Created	Authorization canceled	Success
`payment_void_declined`	Created	Authorization canceled	Failure
`payment_expired`	Created or Updated	Authorization	Failure
`payment_canceled`	Created or Updated	Authorization	Failure

Information

We do not automatically update the order or payment status. This allows you to build your own order flow.

Follow the steps below to create and configure the Checkout.com API Client on your commercetools site.

Log in to the commercetools Merchant Center, go to Settings > Developer Settings and select Create API Client.
Enter a name for this new API Client (e.g., cko-payment-integration).
Select the following scopes:

Manage: Orders
Manage: Payments

Select Create API Client.
Copy the following details from the window displayed, and reach out to our Support team at [email protected] to assist you with onboarding:

project_key
client_id
secret
API URL
Auth URL

Information

You must save this information, as it is only displayed once.

Using commercetools' IMPEX, set Types as endpoint, and create as command. Then copy and paste in the following JSON files to install them (make sure you're in the right project when doing this):


1{
2  "key": "ctp-cko-integration-interaction",
3  "name": {
4    "en": "Checkout.com Interaction"
5  },
6  "resourceTypeIds": ["payment-interface-interaction"],
7  "fieldDefinitions": [
8    {
9      "name": "responseCode",
10      "label": {
11        "en": "Response Code"
12      },
13      "required": true,
14      "type": {
15        "name": "String"
16      },
17      "inputHint": "SingleLine"
18    },
19    {
20      "name": "responseSummary",
21      "label": {
22        "en": "Response Summary"
23      },
24      "required": true,
25      "type": {
26        "name": "String"
27      },
28      "inputHint": "SingleLine"
29    },
30    {
31      "name": "id",
32      "label": {
33        "en": "Action Id"
34      },
35      "required": true,
36      "type": {
37        "name": "String"
38      },
39      "inputHint": "SingleLine"
40    }
41  ]
42}


1{
2  "key": "ctp-cko-integration-payment",
3  "name": { "en": "Saved Payment Instrument" },
4  "description": { "en": "Stores customer saved payments" },
5  "resourceTypeIds": ["payment"],
6  "fieldDefinitions": [
7    {
8      "name": "paymentInstrumentId",
9      "type": { "name": "String" },
10      "required": false,
11      "label": { "en": "Payment Instrument" },
12      "inputHint": "SingleLine"
13    }
14  ]
15}

Next, set up the frontend part of our commercetools integration.

Integrate Frames to accept card payments.
Add our Klarna SDK (follow steps 2 and 3 on that page; we'll take care of the rest) to support Klarna payments.

If you are planning to accept SEPA payments, before any payment can occur, your customer must authorize the payment by accepting the terms of the mandate. By accepting, they are authorizing you to collect the specified amount from their bank account using SEPA Direct Debit. See Issue the mandate for more information


1// create context
2const createContext = async ({ public_key, reference }) => {
3  const data = await fetch(`https://commercetools.integration.checkout.com/api/contexts`, {
4    method: 'post',
5    headers: {
6      'content-type': 'application/json',
7      authorization: public_key
8    },
9    body: JSON.stringify({ reference })
10  }).then(res => res.json())
11  return data
12}
13
14// create payment
15const createPayment = async args => {
16  const { token, public_key, context_id, success_url, failure_url, save_payment_instrument } = args
17  const data = await fetch(`https://commercetools.integration.checkout.com/api/payments`, {
18    method: 'post',
19    headers: {
20      'content-type': 'application/json',
21      authorization: public_key
22    },
23    body: JSON.stringify({
24      type: 'token',
25      token,
26      context_id,
27      '3ds': args['3ds'],
28      success_url,
29      failure_url,
30      save_payment_instrument
31    })
32  })
33  const body = await data.json()
34  return {
35    success: data.status >= 200,
36    redirectUrl: body.redirect_url
37  }
38}
39
40// Credit card Frames initialization
41Frames.init({
42  publicKey: config.cko.publicKey,
43  cardValidationChanged: function () {
44    console.log('CARD_VALIDATION_CHANGED: %o', event)
45    payButton.disabled = !Frames.isCardValid()
46  },
47  cardTokenized: async data => {
48    console.log('CARD_TOKENIZATION: %o', data)
49    const paymentSuccess = await createContext({
50      public_key: config.cko.publicKey,
51      reference: order ? order.id : cart.id
52    }).then(context =>
53      createPayment({
54        public_key: config.cko.publicKey,
55        token: data.token,
56        context_id: context.id,
57        save_payment_instrument: true, // only works for if users is registered
58        '3ds': {enabled: true | false}, // ability to send 3ds flag for a request (ideally configured through Hub, use only for testing)
59        success_url: `https://example.com/3ds-success.html`, // ability to configure 3ds redirect
60        failure_url: `https://example.com/3ds-error.html` // ability to configure 3ds redirect
61      })
62    )
63
64    if (!paymentSuccess) {
65      return console.error('Create payment error', payment)
66    }
67
68    const order = await createOrder()
69
70    if (!order) {
71      console.error('Create order error', order)
72      return
73    }
74
75    window.location.href = `/confirmation.html?orderId=${order.id}`
76  },
77  cardTokenizationFailed: function (data) {
78    console.log('CARD_TOKENIZATION_FAILED: %o', data)
79  }
80})
81
82Frames.addEventHandler(Frames.Events.FRAME_ACTIVATED, () => window.dispatchEvent(paymentFormRendered))
83
84form.addEventListener('submit', async event => {
85  event.preventDefault()
86  Frames.submitCard()
87})
88
89// klarna
90const paymentSuccess = await createContext({
91  public_key: config.cko.publicKey,
92  reference: order ? order.id : cart.id
93}).then(context => {
94  const reference = order.id : cart.id
95
96  const apm = context.apms.find(a => a.name === 'klarna')
97  const container = document.getElementById('payment-klarna')
98  const buyWithKlarna = document.getElementById('payment-method-klarna')
99  // button is disabled by default
100  const payWithKlarna = document.getElementById('pay-klarna')
101
102  buyWithKlarna.addEventListener(
103    'click',
104    () => {
105      Klarna.Payments.authorize(
106        // options
107        {
108          instance_id: context.id // Same as instance_id set in Klarna.Payments.load().
109        },
110        // data
111        {},
112        // callback
113        response => {
114          console.log('klarna payments authorize', response)
115          buyWithKlarna.classList.add('hidden')
116          payWithKlarna.classList.remove('hidden')
117          // show button to pay with klarna now
118          payWithKlarna.addEventListener('click', async () =>
119            // pay
120            createPayment({ type: apm.name, token: response.authorization_token, contextId: context.id })
121          )
122        }
123      )
124    },
125    false
126  )
127
128  Klarna.Payments.init({
129    client_token: apm.metadata.details.client_token
130  })
131
132  Klarna.Payments.load(
133    // show the klarna component
134    {
135      container: '#klarna_container',
136      payment_method_categories: apm.metadata.details.payment_method_category.map(cat => cat.identifier),
137      instance_id: context.id
138    },
139    // use data from session
140    apm.metadata.session,
141    // callback
142    function (response) {
143      console.log('klarna payments load', response)
144      // ...
145    }
146  )
147})

Now that you've set up the integration, you're ready to make a payment. You can make a payment in two steps:

Create context
Request payment

First, create a payment context. This returns the available payment options to the customer, and gives you a context_id, with which you can then request a payment.

Expand the table below to see how our properties map to commercetools' properties.

Note, the reference property in commercetools refers to the cart or order ID.

Checkout.com	commercetools	Notes
`amount` required	`reference.taxedPrice.totalGross.centAmount`	You will get an error if `taxedPrice` is missing from `reference`.
`amount.discount_amount` required	n/a	Set to zero because commercetools applies discounts across line items.
`currency` required	`reference.taxedPrice.totalGross.currencyCode`	You will get an error if `taxedPrice` is missing from `reference`.
`reference` required	`payload.id`
`billing` required	`reference.billingAddress`	You will get an error if `billingAddress` is missing from `reference`.
`billing.address.address_line1` optional	`reference.billingAddress.(streetNumber ' ' streetName)`
`billing.address.address_line2` optional	`reference.billingAddress.additionalStreetInfo`
`billing.address.zip` optional	`reference.billingAddress.postalCode`
`billing.address.city` optional	`reference.billingAddress.city`
`billing.address.state` optional	`reference.billingAddress.(state\|region)`
`billing.address.country` required	`reference.billingAddress.country`
`shipping` optional	`reference.shippingAddress`
`shipping.address.address_line1` optional	`reference.shippingAddress.streetNumber`
`shipping.address.address_line2` optional	`reference.shippingAddress.streetName`
`shipping.address.city` optional	`reference.shippingAddress.city`
`shipping.address.state` optional	`reference.shippingAddress.(state\|region)`
`shipping.address.zip` optional	`reference.shippingAddress.postalCode`
`shipping.address.country` required	`reference.shippingAddress.country`
`customer` optional	n/a	Not set if `first_name` and `last_name` are missing from `billingAddress`.
`customer.name` required	`reference.billingAddress.(first_name ' ' last_name)`
`customer.email` optional	`payload.customerEmail` `reference.billingAddress.email` `reference.customerEmail`
`products.items.name` required	`reference.lineItems.variant.name`	Uses the language of the order country if present. Defaults to English if no country is included.
`products.items.quantity` required	`reference.lineItems.quantity`
`products.items.price` required	`reference.lineItems.price.value.centAmount` `shippingInfo.price.centAmount`
`products.items.amount` required	`reference.lineItems.taxedPrice.totalGross.centAmount` `shippingInfo.taxedPrice.totalGross.centAmount`	You will get an error if `taxedPrice` is missing from `lineItems` or `shippingInfo`.
`products.items.discount_amount` required	(`reference.lineItems.price.value.centAmount` * `reference.lineItem.quantity`) - `reference.lineItem.taxedPrice.totalGross.centAmount`	The value is calculated from the difference between the total gross (includes discount) and the item total price (excludes discount).

Information

We recommend that you create a context when your payment options page loads, and reload it if the customer makes a change to their basket or details.

post

https://commercetools.integration.checkout.com/api/contexts

Header Value

Header	Value
`Authorization` required	`public key` Use the valid public key of your Checkout.com account. You can find this in the Hub.
`Content-Type` required	`application/json`

Authorization

required

public key

Use the valid public key of your Checkout.com account. You can find this in the Hub.

Content-Type

required

application/json

Field name Description

Field name	Description
`reference` string required	The commercetools cart or order ID.
`customer_email` string optional	The customer's email. If not present, the billing email or the email from the order will be used.

reference

string

required

The commercetools cart or order ID.

customer_email

string

optional

The customer's email.

If not present, the billing email or the email from the order will be used.

Creating the context above will give you a context_id. Use this to request a payment with the following endpoint.

The commercetools integration currently supports the following payment methods:

Card
iDEAL
Sofort
Klarna
PayPal

post

https://commercetools.integration.checkout.com/api/payments

Header Value

Header	Value
`Authorization` required	`public key` Use the valid public key of your Checkout.com account. You can find this in the Hub.
`Content-Type` required	`application/json`

Authorization

required

public key

Use the valid public key of your Checkout.com account. You can find this in the Hub.

Content-Type

required

application/json

Field name	Description
`type` string required	The type of payment method. Set this to `token`.
`context_id` string required	The ID of the payment context created above.
`token` string required	The Checkout.com token.
`cvv` string optional	The three-digit (or four digits for Amex) card verification value/code.
`save_payment_instrument` boolean optional	Allows you to save the payment method for future use.
`3ds` object optional	Allows you to select whether the transaction should be 3D Secure authenticated.
`3ds.enabled` boolean required	Required if the `3ds` object is included in the request.
`3ds.challenge_indicator` string optional	Indicates the preference for whether or not a 3DS challenge should be performed. The customer’s bank has the final say on whether or not the customer receives the challenge. Default: `"no_preference"` Possible values: `"no_preference"` `"no_challenge_requested"` `"challenge_requested"` `"challenge_requested_mandate"` For more information about SCA, please refer to the SCA compliance guide.
`reference` string optional	A reference you can use to later identify the payment. This populates the reference field in the Hub Leaving this blank will result in `context.reference` being used as the reference in the Hub.
`success_url` string optional	The URL to which the customer will be redirected if the payment is successful.
`failure_url` string optional	The URL to which the customer will be redirected if the payment fails.

Field name	Description
`type` string required	The type of payment method. Set this to `id`.
`context_id` string required	The ID of the payment context created above.
`token` string required	The identifier of the saved payment source.
`cvv` string optional	The three-digit (or four digits for Amex) card verification value/code.
`save_payment_instrument` boolean optional	Allows you to save the payment method for future use.
`3ds` object optional	Allows you to select whether the transaction should be 3D Secure authenticated.
`3ds.enabled` boolean required	Required if the `3ds` object is included in the request.
`3ds.challenge_indicator` string optional	Indicates the preference for whether or not a 3DS challenge should be performed. The customer’s bank has the final say on whether or not the customer receives the challenge. Default: `"no_preference"` Possible values: `"no_preference"` `"no_challenge_requested"` `"challenge_requested"` `"challenge_requested_mandate"` For more information about SCA, please refer to the SCA compliance guide.
`reference` string optional	A reference you can use to later identify the payment. This populates the reference field in the Hub Leaving this blank will result in `context.reference` being used as the reference in the Hub.
`success_url` string optional	The URL to which the customer will be redirected if the payment is successful.
`failure_url` string optional	The URL to which the customer will be redirected if the payment fails.

Field name	Description
`type` string required	The type of payment method. Set this to `ideal`.
`context_id` string required	The ID of the payment context created above.
`banking` object required	An object containing the bank details.
`banking.bic` string required	The Bank Identifier Code (BIC).
`reference` string optional	A reference you can use to later identify the payment. This populates the reference field in the Hub. Leaving this blank will result in context.reference being used as the reference in the Hub.
`success_url` string optional	The URL to which the customer will be redirected if the payment is successful.
`failure_url` string optional	The URL to which the customer will be redirected if the payment fails.

Field name	Description
`type` string required	The type of payment method. Set this to `klarna`.
`context_id` string required	The ID of the payment context created above.
`token` string required	The Klarna authorization token.
`reference` string optional	A reference you can use to later identify the payment. This populates the reference field in the Hub Leaving this blank will result in `context.reference` being used as the reference in the Hub.
`success_url` string optional	The URL to which the customer will be redirected if the payment is successful.
`failure_url` string optional	The URL to which the customer will be redirected if the payment fails.

Field name	Description
`type` string required	The type of payment method. Set this to `paypal`.
`context_id` string required	The ID of the payment context created above.
`reference` string optional	A reference you can use to later identify the payment. This populates the reference field in the Hub Leaving this blank will result in `context.reference` being used as the reference in the Hub.
`success_url` string optional	The URL to which the customer will be redirected if the payment is successful.
`failure_url` string optional	The URL to which the customer will be redirected if the payment fails.

Field name	Description
`type` string required	The type of payment method. Set this to `sofort`.
`context_id` string required	The ID of the payment context created above.
`reference` string optional	A reference you can use to later identify the payment. This populates the reference field in the Hub Leaving this blank will result in `context.reference` being used as the reference in the Hub.
`success_url` string optional	The URL to which the customer will be redirected if the payment is successful.
`failure_url` string optional	The URL to which the customer will be redirected if the payment fails.

The following endpoints allow you to retrieve a customer's saved payment instruments or delete them.

Use this endpoint to return a list of a customer's saved payment instruments.

get

https://commercetools.integration.checkout.com/api/merchants/{public_key}/customers/{customer_id}

Header Value

Header	Value
`Authorization` required	`secret key` Use the valid secret key of your Checkout.com account. You can find this in the Hub.
`Content-Type` required	`application/json`

Authorization

required

secret key

Use the valid secret key of your Checkout.com account. You can find this in the Hub.

Content-Type

required

application/json

Path Description

Path	Description
`public_key` required	Your Checkout.com public key. You can find this in the Hub.
`customer_id` required	The customer's commercetools ID.

public_key

required

Your Checkout.com public key. You can find this in the Hub.

customer_id

required

The customer's commercetools ID.

Use the endpoint below to delete a customer's saved payment instrument.

delete

https://commercetools.integration.checkout.com/api/merchants/{public_key}/customers/{customer_id}/payment-instruments/{payment_instrument_id}

Header Value

Header	Value
`Authorization` required	`secret key` Use the valid secret key of your Checkout.com account. You can find this in the Hub.
`Content-Type` required	`application/json`

Authorization

required

secret key

Use the valid secret key of your Checkout.com account. You can find this in the Hub.

Content-Type

required

application/json

Path Description

Path	Description
`public_key` required	Your Checkout.com public key. You can find this in the Hub.
`customer_id` required	The customer's commercetools ID.
`payment_instrument_id` required	The unique identifier of the saved payment instrument.

public_key

required

Your Checkout.com public key. You can find this in the Hub.

customer_id

required

The customer's commercetools ID.

payment_instrument_id

required

The unique identifier of the saved payment instrument.

For more testing, commercetools have created a Postman collection.

Commercetools

Information

Before you start

Create a test account

Get your API keys

Configure webhooks

Information

Note

How webhooks interact with commercetools

Information

Configure API Client

Information

Set up the frontend

Make a payment

Create context

Information

Endpoint

Header parameters

Body parameters

Request payment

Endpoint

Header parameters

Body parameters

Manage saved payment instruments

Retrieve saved payment instruments

Endpoint

Header and path parameters

Delete a saved payment instrument

Endpoint

Header and path parameters

Postman collection