Go Client Library for Chargebee API

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This is the source code for the Go client library for Chargebee APIs.

Go version: v3 and v2 of the library require Go v1.3 or higher.

Library versions

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The versioning scheme of this library is inspired by SemVer and the format is v{MAJOR}.{MINOR}.{PATCH}. For example, v3.0.0 and v2.5.1 are valid library versions.

The following table provides some details for each major version:

Library major version	Status	Compatible API versions	Branch
v3	Active	v2 and v1	master
v2	Inactive	v2 and v1	chargebee-v2

A couple of terms used in the above table are explained below:

• Status: The current development status for the library version. An Active major version is currently being maintained and continues to get backward-compatible changes.
• Branch: The branch in this repository containing the source code for the latest release of the library version. Every version of the library has been tagged. You can check out the source code for any version using its tag.

🔴 Attention: The support for v2 will eventually be discontinued on December 31st 2023 and will no longer receive any further updates. We strongly recommend upgrading to v3 as soon as possible.

Note: See the changelog for a history of changes.

Install the library

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Install the latest version of the library with the following commands:

Install v3

go get github.com/chargebee/chargebee-go/v3

Install v2

go get github.com/chargebee/chargebee-go

Use the library

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Some examples for using the library are listed below.

Create a customer and subscription

import (
  "fmt"
  "github.com/chargebee/chargebee-go/v3"
  subscriptionAction "github.com/chargebee/chargebee-go/v3/actions/subscription"
  "github.com/chargebee/chargebee-go/v3/models/subscription"
)

func main() {
  chargebee.Configure("{site_api_key}", "{site}")
  res, err := subscriptionAction.Create(&subscription.CreateRequestParams{
    PlanId:         "cbdemo_grow",
    BillingCycles:  chargebee.Int32(3),
    AutoCollection: enum.AutoCollectionOff,
    Customer: &subscription.CreateCustomerParams{
      Email:          "john@user.com",
      FirstName:      "John",
      LastName:       "Doe",
      Locale:         "fr-CA",
      Phone:          "+1-949-999-9999",
      AutoCollection: enum.AutoCollectionOff,
    }}).Request()
  if err != nil {
    panic(err)
  }else{
     Subscription := res.Subscription
     Customer := res.Customer
     Invoice := res.Invoice
  }
}

Create a subscription with addons, metadata, and coupons

import (
  "fmt"
  "github.com/chargebee/chargebee-go/v3"
  subscriptionAction "github.com/chargebee/chargebee-go/v3/actions/subscription"
  "github.com/chargebee/chargebee-go/v3/models/subscription"
)

func main() {
  chargebee.Configure("{site_api_key}", "{site}")
  res, err := subscriptionAction.Create(&subscription.CreateRequestParams{
    PlanId:         "cbdemo_grow",
    BillingCycles:  chargebee.Int32(3),
    AutoCollection: enum.AutoCollectionOff,
    Customer: &subscription.CreateCustomerParams{
      Email:          "john@user.com",
      FirstName:      "John",
      LastName:       "Doe",
      Locale:         "fr-CA",
      Phone:          "+1-949-999-9999",
      AutoCollection: enum.AutoCollectionOff,
    },
    BillingAddress: &subscription.CreateBillingAddressParams{
      FirstName: "John",
      LastName:  "Doe",
      Line1:     "PO Box 9999",
      City:      "Walnut",
      State:     "California",
      Zip:       "91789",
      Country:   "US",
    },
    MetaData: map[string]interface{}{
      "features": map[string]interface{}{
        "usage-limit":        "5GB",
        "speed-within-quota": "2MBbps",
        "post-usage-quota":   "512kbps",
      },
    },
    Addons: []*subscription.CreateAddonParams{
      {
        Id: "cbdemo_conciergesupport",
      },
      {
        Id:       "cbdemo_additionaluser",
        Quantity: chargebee.Int32(2),
      },
    },
    CouponIds: []string{"cbdemo_earlybird"},
  }).Request()
  if err != nil {
    panic(err)
  }else{
  Subscription := res.Subscription
  Customer := res.Customer
  Card := res.Card
  Invoice := res.Invoice
  UnbilledCharges := res.UnbilledCharges
  }
}

Create a subscription with custom headers, custom fields and custom context

import (
  "fmt"
  "github.com/chargebee/chargebee-go/v3"
  subscriptionAction "github.com/chargebee/chargebee-go/v3/actions/subscription"
  "github.com/chargebee/chargebee-go/v3/models/subscription"
)

func main() {
  chargebee.Configure("{site_api_key}", "{site}")
  res, err := subscriptionAction.Create(&subscription.CreateRequestParams{
    PlanId: "cbdemo_grow",
  }).Headers("chargebee-request-origin-ip", "192.168.1.2").Contexts(ctx).AddParams("cf_gender","Female").Request() // Customer level custom field. 
  if err != nil {
    panic(err)
  }else{
  Subscription := res.Subscription
  Customer := res.Customer
  Card := res.Card
  Invoice := res.Invoice
  UnbilledCharges := res.UnbilledCharges
  }
}

Retrieve a filtered list of subscriptions

import (
  "fmt"
  "github.com/chargebee/chargebee-go/v3"
  subscriptionAction "github.com/chargebee/chargebee-go/v3/actions/subscription"
  "github.com/chargebee/chargebee-go/v3/filter"
  "github.com/chargebee/chargebee-go/v3/models/subscription"
)

func main() {
  chargebee.Configure("{site_api_key}", "{site}")
  res, err := subscriptionAction.List(&subscription.ListRequestParams{
    Limit: chargebee.Int32(5),
    Id: &filter.StringFilter{
      In: []string{"cbdemo_john-sub", "cbdemo_ricky-sub"},
    },
    PlanId: &filter.StringFilter{
      IsNot: "basic",
    },
    Status: &filter.EnumFilter{
      Is: subscriptionEnum.StatusActive,
    },
    SortBy: &filter.SortFilter{
      Asc: "created_at",
    },
  }).ListRequest()
  if err != nil {
    panic(err)
  }else{
  for i := range res.List {
    Subscription := res.List[i].Subscription
    Customer := res.List[i].Customer
    Card := res.List[i].Card
  }
  }
}

Create an idempotent request

Idempotency keys are passed along with request headers to allow a safe retry of POST requests.

import (
	"fmt"
	"github.com/chargebee/chargebee-go/v3"
	customerAction "github.com/chargebee/chargebee-go/v3/actions/customer"
	"github.com/chargebee/chargebee-go/v3/models/customer"
)

func main() {
    chargebee.Configure("{site_api_key}", "{site}")
	res, err := customerAction.Create(&customer.CreateRequestParams{
		FirstName: "John",
		LastName:  "Doe",
		Email:     "john@test.com",
	})
	.SetIdempotencyKey("ghggh") // Replace <<UUID>> with a unique string
	.Request()
	if err != nil {
		fmt.Println(err)
	} else {
		Customer := res.Customer
		fmt.Println(Customer)
	}
  headerValue := res.GetResponseHeaders() // Retrieves response headers
	fmt.Println(headerValue)
  idempotencyReplayedValue := res.IsIdempotencyReplayed()// Retrieves idempotency replayed header value 
  fmt.Println(idempotencyReplayedValue)
}

IsIdempotencyReplayed() method can be accessed to differentiate between original and replayed requests.

Use the test suite

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Use Testify's require package to run the test suite

go get github.com/stretchr/testify/require

Handle errors

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_,err := //Go Library call 

if err != nil {
  if goErr,ok := err.(*chargebee.Error); ok {

    //Identify the type of Error 
    switch goErr.Type {
      
    case chargebee.PaymentError:
      // First check for card parameters entered by the user.
        // We recommend you to validate the input at the client side itself to catch simple mistakes.
        if goErr.Param == "card[number]" {
          // Ask your user to recheck the card number. A better way is to use 
          // Stripe's https://github.com/stripe/jquery.payment for validating it in the client side itself.  
          //}else if(goErr.Param == <other card params>){ 
            //Similarly check for other card parameters entered by the user.
            //....
        } else {
            // Verfication or processing failures.
            // Provide a standard message to your user to recheck his card details or provide a different card.
            // Like  'Sorry,there was a problem when processing your card, please check the details and try again'. 
        }

      case chargebee.InvalidRequestError:
        // For coupons you could decide to provide specific messages by using 
        // the 'api_error_code' attribute in the ex.
        if goErr.Param == "coupon" {
          if goErr.APIErrorCode == "resource_not_found" {
            // Inform user to recheck his coupon code.
          } else if goErr.APIErrorCode == "resource_limit_exhausted" {
            // Inform user that the coupon code has expired.
          } else if goErr.APIErrorCode == "invalid_request" {
            // Inform user that the coupon code is not applicable for his plan(/addons).
          } else {
            // Inform user to recheck his coupon code.
          }
        } else {
          // Since you would have validated all other parameters on your side itself, 
          // this could probably be a bug in your code. Provide a generic message to your users.
        }

    case chargebee.OperationFailedError:
      // Indicates that the request parameters were right but the request couldn't be completed.
        // The reasons might be "api_request_limit_exceeded" or could be due to an issue in ChargeBee side.
        // These should occur very rarely and mostly be of temporary nature. 
        // You could ask your user to retry after some time.
      default :
        // These are unhandled exceptions (Could be due to a bug in your code or very rarely in client library).
          // The errors from ChargeBee such as authentication failures will come here.
            // You could ask users contact your support.     
    }
  }
}

Contribution

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You may contribute patches to any of the Active versions of this library. To do so, raise a PR against the respective branch.

If you find something amiss, you are welcome to create an issue.

API documentation

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The API documentation for the Go library can be found in our API reference.

License

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See the LICENSE.

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