diff --git a/ChangeLog.md b/ChangeLog.md
new file mode 100644
--- /dev/null
+++ b/ChangeLog.md
@@ -0,0 +1,5 @@
+# Revision history for haskell-cielo
+
+## 0.1.0.0  -- YYYY-mm-dd
+
+* First version. Released on an unsuspecting world.
diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
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+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 2016  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<http://www.gnu.org/licenses/>.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/cielo.cabal b/cielo.cabal
new file mode 100644
--- /dev/null
+++ b/cielo.cabal
@@ -0,0 +1,76 @@
+-- This file has been generated from package.yaml by hpack version 0.14.0.
+--
+-- see: https://github.com/sol/hpack
+
+name:           cielo
+version:        0.1.2.0
+synopsis:       Cielo API v3 Bindings for Haskell
+description:    Cielo API v3 Bindings
+category:       Web
+homepage:       https://github.com/beijaflor-io/haskell-cielo
+author:         Pedro Tacla Yamada
+maintainer:     tacla.yamada@gmail.com
+license:        AGPL-3
+license-file:   LICENSE
+build-type:     Simple
+cabal-version:  >= 1.10
+
+extra-source-files:
+    ChangeLog.md
+
+library
+  hs-source-dirs:
+      src
+  default-extensions: OverloadedStrings TemplateHaskell ConstraintKinds FlexibleContexts RecordWildCards ScopedTypeVariables
+  build-depends:
+      base >=4.8 && <5
+    , text >=1.2 && <1.3
+    , template-haskell >=2.11 && <2.12
+    , aeson
+    , mtl
+    , uuid >=1.3 && <1.4
+    , wreq
+    , lens
+    , convertible
+    , bytestring
+    , http-types
+    , http-client >=0.4.31.1
+    , data-default
+  exposed-modules:
+      Web.Payments.Cielo
+      Web.Payments.Cielo.Types
+      Web.Payments.Cielo.Types.DeriveJSON
+  other-modules:
+      Web.Payments.Cielo.Util
+      Paths_cielo
+  default-language: Haskell2010
+
+test-suite hspec
+  type: exitcode-stdio-1.0
+  main-is: Spec.hs
+  hs-source-dirs:
+      test
+  default-extensions: OverloadedStrings TemplateHaskell ConstraintKinds FlexibleContexts RecordWildCards ScopedTypeVariables
+  build-depends:
+      base >=4.8 && <5
+    , text >=1.2 && <1.3
+    , template-haskell >=2.11 && <2.12
+    , aeson
+    , mtl
+    , uuid >=1.3 && <1.4
+    , wreq
+    , lens
+    , convertible
+    , bytestring
+    , http-types
+    , http-client >=0.4.31.1
+    , data-default
+    , base
+    , hspec
+    , QuickCheck
+    , cielo
+    , pretty-show
+  other-modules:
+      SanitySpec
+      Web.Payments.CieloSpec
+  default-language: Haskell2010
diff --git a/src/Web/Payments/Cielo.hs b/src/Web/Payments/Cielo.hs
new file mode 100644
--- /dev/null
+++ b/src/Web/Payments/Cielo.hs
@@ -0,0 +1,223 @@
+module Web.Payments.Cielo
+    (
+      -- * Running the API calls
+      runCielo
+    , cieloConfigFromEnv
+    , productionEnv
+    , sandboxEnv
+      -- * Available API Calls
+      -- ** Generating Merchant Order IDs
+    , getMerchantOrderId
+      -- ** Sales
+    , createSale
+    , querySale
+    , captureSale
+    , voidSale
+
+      -- *** Low-Level
+    , updateSale
+
+      -- ** Querying Sales
+    , querySalesByMerchantOrderId
+    , queryRecurrentSale
+
+      -- ** Recurrent Sales
+      -- *** Cancelling / Uncancelling
+    , cancelRecurrentPayment
+    , uncancelRecurrentPayment
+
+      -- *** Updates
+    , updateRecurrentPaymentEndDate
+    , updateRecurrentPaymentPayment
+    , updateRecurrentPaymentInterval
+    , updateRecurrentPaymentInstallments
+    , updateRecurrentPaymentCustomer
+    , updateRecurrentPaymentRecurrencyDay
+    , updateRecurrentPaymentNextPaymentDate
+    , updateRecurrentPaymentNextPaymentAmount
+
+      -- * Types
+    , CieloConfig(..)
+    , CreditCard(..)
+    , MonadCielo
+    , CieloError(..)
+    , Merchant(..)
+    , Environment(..)
+    , Sale(..)
+    , PaymentProvider(..)
+    , PaymentType(..)
+    , Currency(..)
+    , Interval(..)
+    , RecurrentPayment(..)
+    , RecurrentPaymentQuery(..)
+    , Address(..)
+    , Customer(..)
+    , Payment(..)
+    , SalesByMerchantOrderQuery(..)
+
+      -- * Re-exports
+    , Default(..)
+    , MonadIO
+    , liftIO
+    , FromJSON(..)
+    , ToJSON(..)
+    )
+  where
+
+import           Control.Exception
+import           Control.Monad
+import           Control.Monad.Except
+import           Control.Monad.Reader
+import           Data.Aeson
+import           Data.Convertible
+import           Data.Default
+import           Data.Monoid              ((<>))
+import           Data.Text                (Text, pack)
+import           Data.UUID
+import           Data.UUID.V4
+import           Network.Wreq             hiding (get, post, put)
+import           System.Environment
+
+import           Web.Payments.Cielo.Types
+import           Web.Payments.Cielo.Util
+
+-- | API Calls happen in a 'MonadCielo' type-class
+-- 'CieloM' is a helper instance of this class, which runs exceptions on the IO
+-- monad and exposes the configuration through a 'ReaderT'
+runCielo :: CieloConfig -> CieloM a -> IO a
+runCielo cnf rdr = do
+    eret <- runExceptT (runReaderT rdr cnf)
+    case eret of
+        Left err -> throwIO err
+        Right ret -> return ret
+
+-- | We can load 'CieloConfig' from the @"CIELO_MERCHANTID"@ and
+-- @"CIELO_MERCHANTKEY"@ environment variables
+cieloConfigFromEnv :: IO CieloConfig
+cieloConfigFromEnv = do
+    m <- Merchant <$> (pack <$> getEnv "CIELO_MERCHANTID")
+                  <*> (pack <$> getEnv "CIELO_MERCHANTKEY")
+    return $ CieloConfig m sandboxEnv
+
+-- | Generates a new merchant UIID
+getMerchantOrderId :: MonadIO m => m Text
+getMerchantOrderId = liftIO $ toText <$> nextRandom
+
+-- | Creates a 'Sale'
+createSale :: MonadCielo m => Sale -> m Sale
+createSale = post "/1/sales" []
+
+-- | Queries for a 'Sale' given it's paymentId
+querySale :: MonadCielo m => Text -> m Sale
+querySale paymentId = get ("/1/sales/" <> convert paymentId) []
+
+-- | Queries for a sales given a merchant UUID
+querySalesByMerchantOrderId :: MonadCielo m => Text -> m SalesByMerchantOrderQuery
+querySalesByMerchantOrderId merchantOrderId = get "/1/sales" [("merchantOrderId", merchantOrderId)]
+
+-- | Queries for a recurrent sale given it's paymentId
+queryRecurrentSale :: MonadCielo m => Text -> m RecurrentPaymentQuery
+queryRecurrentSale recurrentPaymentId = get ("/1/RecurrentPayment/" <> convert recurrentPaymentId) []
+
+-- | Captures a sale
+captureSale
+    :: MonadCielo m
+    => Text
+    -- ^ Payment ID
+    -> Maybe Int
+    -- ^ Amount
+    -> Maybe Int
+    -- ^ Service Tax Amount
+    -> m SaleUpdate
+captureSale paymentId mamount mserviceTaxAmount =
+    updateSale paymentId "capture" query
+  where
+    query =
+        maybe [] (\a -> [("amount", convert (show a))]) mamount ++
+        maybe [] (\a -> [("serviceTaxAmount", convert (show a))]) mserviceTaxAmount
+
+-- | Voids a sale
+voidSale
+    :: MonadCielo m
+    => Text
+    -- ^ Payment ID
+    -> Maybe Int
+    -- ^ Amount
+    -> m SaleUpdate
+voidSale paymentId mamount = updateSale paymentId "void" query
+  where
+    query = maybe [] (\a -> [("amount", convert (show a))]) mamount
+
+-- | Updates a sale (Generalized PUT over a type of Sale update @/1/sales/:id/:type@)
+updateSale
+    :: MonadCielo m
+    => Text
+    -- ^ Payment ID
+    -> Text
+    -- ^ :type
+    -> [(Text, Text)]
+    -- ^ Data to PUT
+    -> m SaleUpdate
+updateSale paymentId paymentType query = put
+    ("/1/sales/" <> convert paymentId <> "/" <> convert paymentType)
+    query
+    (object [])
+
+cancelRecurrentPayment :: MonadCielo m => Text -> m ()
+cancelRecurrentPayment recurrentPaymentId = void $ sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/Deactivate")
+    []
+    (object [])
+
+updateRecurrentPaymentEndDate :: MonadCielo m => Text -> Text -> m ()
+updateRecurrentPaymentEndDate recurrentPaymentId endDate = void $ sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/EndDate")
+    []
+    endDate
+
+updateRecurrentPaymentInstallments :: MonadCielo m => Text -> Int -> m ()
+updateRecurrentPaymentInstallments recurrentPaymentId installments = void $ sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/Installments")
+    []
+    installments
+
+updateRecurrentPaymentInterval :: MonadCielo m => Text -> Int -> m ()
+updateRecurrentPaymentInterval recurrentPaymentId interval = void $ sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/Interval")
+    []
+    interval
+
+updateRecurrentPaymentRecurrencyDay :: MonadCielo m => Text -> Int -> m ()
+updateRecurrentPaymentRecurrencyDay recurrentPaymentId dayOfMonth = void $ sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/Amount")
+    []
+    dayOfMonth
+
+updateRecurrentPaymentNextPaymentAmount :: MonadCielo m => Text -> Int -> m ()
+updateRecurrentPaymentNextPaymentAmount recurrentPaymentId amount = void $ sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/Amount")
+    []
+    amount
+
+updateRecurrentPaymentNextPaymentDate :: MonadCielo m => Text -> Text -> m ()
+updateRecurrentPaymentNextPaymentDate recurrentPaymentId date = void $ sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/NextPaymentDate")
+    []
+    date
+
+updateRecurrentPaymentPayment :: MonadCielo m => Text -> Payment -> m ()
+updateRecurrentPaymentPayment recurrentPaymentId payment = void $ sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/Payment")
+    []
+    payment
+
+uncancelRecurrentPayment :: MonadCielo m => Text -> m ()
+uncancelRecurrentPayment recurrentPaymentId = void $ sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/Reactivate")
+    []
+    (object [])
+
+updateRecurrentPaymentCustomer :: MonadCielo m => Text -> Customer -> m ()
+updateRecurrentPaymentCustomer recurrentPaymentId = void . sendRaw putWith
+    ("/1/RecurrentPayment/" <> convert recurrentPaymentId <> "/Customer")
+    []
diff --git a/src/Web/Payments/Cielo/Types.hs b/src/Web/Payments/Cielo/Types.hs
new file mode 100644
--- /dev/null
+++ b/src/Web/Payments/Cielo/Types.hs
@@ -0,0 +1,299 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TemplateHaskell   #-}
+
+module Web.Payments.Cielo.Types where
+
+import           Control.Exception
+import           Control.Monad.Except
+import           Control.Monad.Reader
+import           Data.Aeson
+import           Data.Aeson.Types
+import qualified Data.ByteString.Lazy                as BL
+import           Data.Convertible
+import           Data.Default
+import           Data.Monoid                         ((<>))
+import           Data.Text                           (Text)
+import           Network.HTTP.Client
+import           Web.Payments.Cielo.Types.DeriveJSON
+
+type MonadCielo m = ( MonadIO m
+                    , MonadReader CieloConfig m
+                    , MonadError CieloError m
+                    )
+type CieloM a = ReaderT CieloConfig (ExceptT CieloError IO) a
+
+data CieloConfig = CieloConfig { cieloConfigMerchant    :: Merchant
+                               , cieloConfigEnvironment :: Environment
+                               }
+
+data CieloError
+    = CieloJSONError String SomeException BL.ByteString
+    | CieloInvalidError String HttpException (Maybe Value)
+    | CieloNotFoundError String HttpException
+    | CieloHttpException String HttpException (Maybe Value)
+  deriving(Show)
+
+instance Exception CieloError where
+
+data Merchant = Merchant { merchantId  :: Text
+                         , merchantKey :: Text
+                         }
+  deriving(Read, Show, Eq)
+
+data Environment = Environment { environmentApiUrl      :: Text
+                               , environmentApiQueryUrl :: Text
+                               }
+  deriving(Read, Show, Eq)
+
+instance Default Environment where
+    def = sandboxEnv
+
+productionEnv :: Environment
+productionEnv = Environment "https://api.cieloecommerce.cielo.com.br"
+                            "https://apiquery.cieloecommerce.cielo.com.br"
+
+sandboxEnv :: Environment
+sandboxEnv = Environment "https://apisandbox.cieloecommerce.cielo.com.br"
+                         "https://apiquerysandbox.cieloecommerce.cielo.com.br"
+
+data PaymentProvider = PaymentProviderBradesco
+                     | PaymentProviderBancoDoBrasil
+                     | PaymentProviderSimulado
+  deriving(Read, Show, Eq)
+
+deriveJSON ''PaymentProvider
+
+data PaymentType = PaymentTypeCreditCard
+                 | PaymentTypeDebitCard
+                 | PaymentTypeElectronicTransfer
+                 | PaymentTypeBoleto
+  deriving(Read, Show, Eq)
+
+instance Default PaymentType where
+    def = PaymentTypeCreditCard
+
+deriveJSON ''PaymentType
+
+data Currency = CurrencyBRL
+              | CurrencyUSD
+              | CurrencyMXN
+              | CurrencyCOP
+              | CurrencyCLP
+              | CurrencyARS
+              | CurrencyPEN
+              | CurrencyEUR
+              | CurrencyPYN
+              | CurrencyUYU
+              | CurrencyVEB
+              | CurrencyVEF
+              | CurrencyGBP
+  deriving(Read, Show, Eq)
+
+instance Default Currency where
+    def = CurrencyBRL
+
+deriveJSON ''Currency
+
+data Interval = IntervalMonthly
+              | IntervalBimonthly
+              | IntervalQuarterly
+              | IntervalSemiAnnual
+              | IntervalAnnual
+  deriving(Read, Show, Eq)
+
+instance Default Interval where
+    def = IntervalMonthly
+
+instance ToJSON Interval where
+    toJSON IntervalMonthly = "Monthly"
+    toJSON IntervalBimonthly = "Bimonthly"
+    toJSON IntervalQuarterly = "Quarterly"
+    toJSON IntervalSemiAnnual = "SemiAnnual"
+    toJSON IntervalAnnual = "Annual"
+
+instance FromJSON Interval where
+    parseJSON (String m) = case m of
+        "Monthly" -> return IntervalMonthly
+        "Bimonthly" -> return IntervalBimonthly
+        "Quarterly" -> return IntervalQuarterly
+        "SemiAnnual" -> return IntervalSemiAnnual
+        "Annual" -> return IntervalAnnual
+        str -> fail ("Failed to parse Interval " <> convert str)
+    parseJSON (Number m) = case m of
+        1 -> return IntervalMonthly
+        2 -> return IntervalBimonthly
+        4 -> return IntervalQuarterly
+        6 -> return IntervalSemiAnnual
+        12 -> return IntervalAnnual
+        n -> fail ("Failed to parse Interval " <> show n)
+    parseJSON invalid = typeMismatch "Interval" invalid
+
+data RecurrentPayment = RecurrentPayment { recurrentPaymentAuthorizeNow       :: Maybe Bool
+                                         , recurrentPaymentEndDate            :: Maybe Text
+                                         , recurrentPaymentStartDate          :: Maybe Text
+                                         , recurrentPaymentInterval           :: Maybe Interval
+                                         , recurrentPaymentRecurrentPaymentId :: Maybe Text
+                                         }
+  deriving(Read, Show, Eq)
+
+instance Default RecurrentPayment where
+    def = RecurrentPayment { recurrentPaymentAuthorizeNow = Just True
+                           , recurrentPaymentEndDate = Nothing
+                           , recurrentPaymentStartDate = Nothing
+                           , recurrentPaymentInterval = Just IntervalMonthly
+                           , recurrentPaymentRecurrentPaymentId = Nothing
+                           }
+
+deriveJSON ''RecurrentPayment
+
+data Address = Address { addressStreet     :: Maybe Text
+                       , addressNumber     :: Maybe Text
+                       , addressComplement :: Maybe Text
+                       , addressZipCode    :: Maybe Text
+                       , addressCity       :: Maybe Text
+                       , addressState      :: Maybe Text
+                       , addressCountry    :: Maybe Text
+                       }
+  deriving(Read, Show, Eq)
+
+instance Default Address where
+    def = Address Nothing Nothing Nothing Nothing Nothing Nothing Nothing
+
+deriveJSON ''Address
+
+data CreditCard = CreditCard { creditCardCardNumber     :: Text
+                             , creditCardHolder         :: Text
+                             , creditCardExpirationDate :: Text
+                             , creditCardSecurityCode   :: Maybe Text
+                             , creditCardSaveCard       :: Maybe Bool
+                             , creditCardBrand          :: Text
+                             , creditCardCardToken      :: Maybe Text
+                             }
+  deriving(Read, Show, Eq)
+
+instance Default CreditCard where
+    def = CreditCard "" "" "" Nothing Nothing "" Nothing
+
+deriveJSON ''CreditCard
+
+data Customer = Customer { customerName            :: Text
+                         , customerEmail           :: Maybe Text
+                         , customerBirthDate       :: Maybe Text
+                         , customerIdentity        :: Maybe Text
+                         , customerIdentityType    :: Maybe Text
+                         , customerAddress         :: Maybe Address
+                         , customerDeliveryAddress :: Maybe Address
+                         }
+  deriving(Read, Show, Eq)
+
+instance Default Customer where
+    def = Customer "" Nothing Nothing Nothing Nothing Nothing Nothing
+
+deriveJSON ''Customer
+
+data Payment = Payment { paymentServiceTaxAmount    :: Maybe Int
+                       , paymentInstallments        :: Maybe Int
+                       , paymentInterest            :: Maybe Value
+                       -- ^ Sometimes this is a string, sometimes it's an int... :P
+                       , paymentCreditCard          :: Maybe CreditCard
+                       , paymentType                :: Maybe PaymentType
+                       , paymentAmount              :: Maybe Int
+                       , paymentCapture             :: Maybe Bool
+                       , paymentAuthenticate        :: Maybe Bool
+                       , paymentRecurrent           :: Maybe Bool
+                       , paymentRecurrentPayment    :: Maybe RecurrentPayment
+                       , paymentTid                 :: Maybe Text
+                       , paymentProofOfSale         :: Maybe Text
+                       , paymentAuthorizationCode   :: Maybe Text
+                       , paymentSoftDescriptor      :: Maybe Text
+                       , paymentReturnUrl           :: Maybe Text
+                       , paymentProvider            :: Maybe PaymentProvider
+                       , paymentPaymentId           :: Maybe Text
+                       , paymentReceivedDate        :: Maybe Text
+                       , paymentCapturedAmount      :: Maybe Int
+                       , paymentCapturedDate        :: Maybe Text
+                       , paymentCurrency            :: Maybe Currency
+                       , paymentCountry             :: Maybe Text
+                       , paymentReturnCode          :: Maybe Text
+                       , paymentReturnMessage       :: Maybe Text
+                       , paymentStatus              :: Maybe Int
+                       , paymentLinks               :: Maybe [Value]
+                       , paymentExtraDataCollection :: Maybe [Value]
+                       , paymentExpirationDate      :: Maybe Text
+                       , paymentUrl                 :: Maybe Text
+                       , paymentNumber              :: Maybe Text
+                       , paymentBarCodeNumber       :: Maybe Text
+                       , paymentDigitableLine       :: Maybe Text
+                       , paymentAddress             :: Maybe Text
+                       }
+  deriving(Read, Show, Eq)
+
+instance Default Payment where
+    def = Payment { paymentServiceTaxAmount    = Just 0
+                  , paymentInstallments        = Just 1
+                  , paymentInterest            = Just Null
+                  , paymentCapture             = Nothing
+                  , paymentAuthenticate        = Nothing
+                  , paymentRecurrent           = Nothing
+                  , paymentRecurrentPayment    = Nothing
+                  , paymentCreditCard          = Just def
+                  , paymentTid                 = Nothing
+                  , paymentProofOfSale         = Nothing
+                  , paymentAuthorizationCode   = Nothing
+                  , paymentSoftDescriptor      = Nothing
+                  , paymentReturnUrl           = Nothing
+                  , paymentProvider            = Nothing
+                  , paymentPaymentId           = Nothing
+                  , paymentType                = Just def
+                  , paymentAmount              = Just 0
+                  , paymentReceivedDate        = Nothing
+                  , paymentCapturedAmount      = Nothing
+                  , paymentCapturedDate        = Nothing
+                  , paymentCurrency            = Nothing
+                  , paymentCountry             = Nothing
+                  , paymentReturnCode          = Nothing
+                  , paymentReturnMessage       = Nothing
+                  , paymentStatus              = Nothing
+                  , paymentLinks               = Nothing
+                  , paymentExtraDataCollection = Nothing
+                  , paymentExpirationDate      = Nothing
+                  , paymentUrl                 = Nothing
+                  , paymentNumber              = Nothing
+                  , paymentBarCodeNumber       = Nothing
+                  , paymentDigitableLine       = Nothing
+                  , paymentAddress             = Nothing
+                  }
+
+deriveJSON ''Payment
+
+data Sale = Sale { saleMerchantOrderId :: Text
+                 , saleCustomer        :: Customer
+                 , salePayment         :: Payment
+                 }
+  deriving(Read, Show, Eq)
+
+deriveJSON ''Sale
+
+data SaleUpdate = SaleUpdate { saleUpdateStatus        :: Int
+                             , saleUpdateReturnCode    :: Text
+                             , saleUpdateReturnMessage :: Text
+                             , saleUpdateLinks         :: [Value]
+                             }
+  deriving(Read, Show, Eq)
+
+deriveJSON ''SaleUpdate
+
+data RecurrentPaymentQuery
+    = RecurrentPaymentQuery { recurrentPaymentQueryRecurrentPayment :: RecurrentPayment
+                            , recurrentPaymentQueryCustomer         :: Customer
+                            }
+  deriving(Read, Show, Eq)
+
+deriveJSON ''RecurrentPaymentQuery
+
+data SalesByMerchantOrderQuery
+    = SalesByMerchantOrderQuery { salesByMerchantOrderQueryPayments :: [Payment]
+                                }
+  deriving(Read, Show, Eq)
+
+deriveJSON ''SalesByMerchantOrderQuery
diff --git a/src/Web/Payments/Cielo/Types/DeriveJSON.hs b/src/Web/Payments/Cielo/Types/DeriveJSON.hs
new file mode 100644
--- /dev/null
+++ b/src/Web/Payments/Cielo/Types/DeriveJSON.hs
@@ -0,0 +1,17 @@
+module Web.Payments.Cielo.Types.DeriveJSON where
+
+import qualified Data.Aeson.TH              as Aeson
+import           Data.Char
+import           Language.Haskell.TH.Syntax
+
+deriveJSON :: Name -> Q [Dec]
+deriveJSON t = Aeson.deriveJSON
+                 Aeson.defaultOptions
+                   { Aeson.fieldLabelModifier = drop (length (nameBase t))
+                   , Aeson.constructorTagModifier = drop (length (nameBase t))
+                   }
+                 t
+
+uncapitalize :: String -> String
+uncapitalize "" = ""
+uncapitalize (c:cs) = toLower c : cs
diff --git a/src/Web/Payments/Cielo/Util.hs b/src/Web/Payments/Cielo/Util.hs
new file mode 100644
--- /dev/null
+++ b/src/Web/Payments/Cielo/Util.hs
@@ -0,0 +1,94 @@
+module Web.Payments.Cielo.Util where
+
+import           Control.Exception
+import           Control.Lens
+import           Control.Monad.Except
+import           Control.Monad.Reader
+import           Data.Aeson
+import qualified Data.ByteString.Lazy     as BL
+import           Data.Convertible
+import           Data.Monoid              ((<>))
+import           Data.Text                (Text)
+import           Data.UUID
+import           Data.UUID.V4
+import           Network.HTTP.Client      (HttpException (..))
+import           Network.HTTP.Types       (Status (..))
+import           Network.Wreq             hiding (get, post, put)
+
+import           Web.Payments.Cielo.Types
+
+cieloRequestOptions :: MonadCielo m => m Options
+cieloRequestOptions = do
+    CieloConfig{..} <- ask
+    let Merchant{..} = cieloConfigMerchant
+        Environment{..} = cieloConfigEnvironment
+
+    uuid <- liftIO $ toASCIIBytes <$> nextRandom
+    return $ defaults & headers .~ [ ("Accept", "application/json")
+                                    -- , ("Accept-Encoding", "gzip")
+                                    -- , ("User-Agent", "Haskell Cielo")
+                                   , ("MerchantId", convert merchantId)
+                                   , ("MerchantKey", convert merchantKey)
+                                   , ("RequestId", uuid)
+                                   ]
+
+sendRaw
+    :: (MonadCielo m, ToJSON arg)
+    => (Options -> String -> Value -> IO (Response BL.ByteString))
+    -> String -> [(Text, Text)] -> arg -> m (Response BL.ByteString)
+sendRaw requester url query arg = do
+    CieloConfig _ Environment{..} <- ask
+    opts <- cieloRequestOptions
+    let targetUrl = convert environmentApiUrl <> url
+        opts' = opts & params .~ query
+        payload = toJSON arg
+    eret <- liftIO $ try $ requester opts' targetUrl payload
+    case eret of
+        Left ex@(StatusCodeException status _ _) -> case status of
+            Status 404 _ -> throwError (CieloNotFoundError url ex)
+            Status 400 _ -> throwError (CieloInvalidError url ex (Just payload))
+            _ -> throwError (CieloHttpException url ex (Just payload))
+        Left ex -> throwError (CieloHttpException url ex (Just payload))
+        Right ret -> return ret
+
+getRaw
+    :: (MonadCielo m)
+    => String -> [(Text, Text)] -> m (Response BL.ByteString)
+getRaw url query = do
+    CieloConfig _ Environment{..} <- ask
+    opts <- cieloRequestOptions
+    let targetUrl = convert environmentApiQueryUrl <> url
+        opts' = opts & params .~ query
+    eret <- liftIO $ try $ getWith opts' targetUrl
+    case eret of
+        Left ex@(StatusCodeException status _ _) -> case status of
+            Status 404 _ -> throwError (CieloNotFoundError url ex)
+            Status 400 _ -> throwError (CieloInvalidError url ex Nothing)
+            _ -> throwError (CieloHttpException url ex Nothing)
+        Left ex -> throwError (CieloHttpException url ex Nothing)
+        Right ret -> return ret
+
+get
+  :: (MonadCielo m, FromJSON b)
+  => String -> [(Text, Text)] -> m b
+get url query = do
+    res <- getRaw url query
+    case asJSON res of
+        Right res' -> return (res' ^. responseBody)
+        Left err -> throwError (CieloJSONError url err (res ^. responseBody))
+
+send
+    :: (MonadCielo m, ToJSON arg, FromJSON ret)
+    => (Options -> String -> Value -> IO (Response BL.ByteString))
+    -> String -> [(Text, Text)] -> arg -> m ret
+send requester url query arg = do
+    res <- sendRaw requester url query arg
+    case asJSON res of
+        Right res' -> return (res' ^. responseBody)
+        Left err -> throwError (CieloJSONError url err (res ^. responseBody))
+
+post :: (MonadCielo m, ToJSON arg, FromJSON ret) => String -> [(Text, Text)] -> arg -> m ret
+post = send postWith
+
+put :: (MonadCielo m, ToJSON arg, FromJSON ret) => String -> [(Text, Text)] -> arg -> m ret
+put = send putWith
diff --git a/test/SanitySpec.hs b/test/SanitySpec.hs
new file mode 100644
--- /dev/null
+++ b/test/SanitySpec.hs
@@ -0,0 +1,6 @@
+module SanitySpec where
+
+import Test.Hspec
+
+spec = describe "when I have tests" $
+    it "I have sanity" $ True `shouldBe` True
diff --git a/test/Spec.hs b/test/Spec.hs
new file mode 100644
--- /dev/null
+++ b/test/Spec.hs
@@ -0,0 +1,1 @@
+{-# OPTIONS_GHC -F -pgmF hspec-discover #-}
diff --git a/test/Web/Payments/CieloSpec.hs b/test/Web/Payments/CieloSpec.hs
new file mode 100644
--- /dev/null
+++ b/test/Web/Payments/CieloSpec.hs
@@ -0,0 +1,336 @@
+module Web.Payments.CieloSpec where
+
+import           Control.Monad
+import           Control.Monad.IO.Class
+import           Data.Aeson
+import           Data.Default
+import           Data.Text                (Text)
+import           Data.UUID
+import           Data.UUID.V4
+import           Test.Hspec
+import           Text.Show.Pretty
+
+import           Web.Payments.Cielo
+import           Web.Payments.Cielo.Types
+
+data DocTestCase = DocTestCase Text Text Int Text
+docTestCases = [ DocTestCase "Autorizado" "0000000000000001" 4 "Operação realizada com sucesso"
+               , DocTestCase "Autorizado" "0000000000000004" 4 "Operação realizada com sucesso"
+               , DocTestCase "Não Autorizado" "0000000000000002" 2 "Não Autorizada"
+               , DocTestCase "Não Autorizado" "0000000000000007" 77 "Cartão Cancelado"
+               , DocTestCase "Não Autorizado" "0000000000000008" 70 "Problemas com o Cartão de Crédito"
+               , DocTestCase "Não Autorizado" "0000000000000005" 78 "Cartão Bloqueado"
+               , DocTestCase "Não Autorizado" "0000000000000003" 57 "Cartão Expirado"
+               , DocTestCase "Não Autorizado" "0000000000000006" 99 "Time Out"
+               ]
+
+data DocRandomTestCase = DocRandomTestCase Text Text [Int] [Text]
+docRandomTestCase = DocRandomTestCase "Autorização Aleatória" "0000000000000009" [ 4, 99 ] [ "Operation Successful", "Time Out" ]
+
+spec :: Spec
+spec = describe "cielo" $ do
+    cnf <- runIO cieloConfigFromEnv
+    describe "createSale" $ do
+        it "creates a sale with cielo" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                      , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                      , creditCardExpirationDate = "12/2023"
+                                                                                      , creditCardSecurityCode = Just "123"
+                                                                                      , creditCardBrand = "visa"
+                                                                                      }
+                                                            , paymentAmount = Just 10000
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+
+        it "creates recurrent sales" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                      , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                      , creditCardExpirationDate = "12/2023"
+                                                                                      , creditCardSecurityCode = Just "123"
+                                                                                      , creditCardBrand = "visa"
+                                                                                      }
+                                                            , paymentAmount = Just 10000
+                                                            , paymentRecurrentPayment = Just def
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+
+        it "creates recurrent sales with start dates" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                      , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                      , creditCardExpirationDate = "12/2023"
+                                                                                      , creditCardSecurityCode = Just "123"
+                                                                                      , creditCardBrand = "visa"
+                                                                                      }
+                                                            , paymentAmount = Just 10000
+                                                            , paymentRecurrentPayment = Just def { recurrentPaymentStartDate = Just "2018-12-03"
+                                                                                                 }
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+
+        it "creates recurrent sales with annual intervals" $ do
+            sale <- runCielo cnf $ do
+                        uuid <- getMerchantOrderId
+                        sale <- createSale Sale { saleMerchantOrderId = uuid
+                                                , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                                     }
+                                                , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                              , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                              , creditCardExpirationDate = "12/2023"
+                                                                                              , creditCardSecurityCode = Just "123"
+                                                                                              , creditCardBrand = "visa"
+                                                                                              }
+                                                                    , paymentAmount = Just 10000
+                                                                    , paymentRecurrentPayment = Just def { recurrentPaymentStartDate = Just "2018-12-03"
+                                                                                                         , recurrentPaymentInterval = Just IntervalAnnual
+                                                                                                         }
+                                                                    }
+                                                }
+                        liftIO $ pPrint sale
+                        return sale
+            let Just intl = recurrentPaymentInterval <$> paymentRecurrentPayment (salePayment sale)
+            intl `shouldBe` Just IntervalAnnual
+
+    describe "cancelRecurrentPayment" $
+        it "cancels recurrent payments" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                      , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                      , creditCardExpirationDate = "12/2023"
+                                                                                      , creditCardSecurityCode = Just "123"
+                                                                                      , creditCardBrand = "visa"
+                                                                                      }
+                                                            , paymentAmount = Just 10000
+                                                            , paymentRecurrentPayment = Just def { recurrentPaymentStartDate = Just "2018-12-03"
+                                                                                                 , recurrentPaymentInterval = Just IntervalAnnual
+                                                                                                 }
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+                let Just paymentId = join (recurrentPaymentRecurrentPaymentId <$> paymentRecurrentPayment (salePayment sale))
+                cancelRecurrentPayment paymentId
+
+    describe "updateRecurrentPaymentCustomer" $
+        it "updates recurrent payments' customer" $ do
+            eml <- runCielo cnf $ do
+                       uuid <- getMerchantOrderId
+                       sale <- createSale Sale { saleMerchantOrderId = uuid
+                                               , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                                    }
+                                               , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                                  , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                                  , creditCardExpirationDate = "12/2023"
+                                                                                                  , creditCardSecurityCode = Just "123"
+                                                                                                  , creditCardBrand = "visa"
+                                                                                                  }
+                                                                   , paymentAmount = Just 10000
+                                                                   , paymentRecurrentPayment = Just def { recurrentPaymentStartDate = Just "2018-12-03"
+                                                                                                        , recurrentPaymentInterval = Just IntervalAnnual
+                                                                                                        }
+                                                                   }
+                                               }
+                       liftIO $ pPrint sale
+                       let Just paymentId = join (recurrentPaymentRecurrentPaymentId <$> paymentRecurrentPayment (salePayment sale))
+                       updateRecurrentPaymentCustomer paymentId
+                                                      (def { customerEmail = Just "yamada@beijaflor.io"
+                                                           , customerName = "Pedro Tacla Yamada"
+                                                           })
+                       RecurrentPaymentQuery{..} <- queryRecurrentSale paymentId
+                       return $ customerEmail recurrentPaymentQueryCustomer
+            eml `shouldBe` Just "yamada@beijaflor.io"
+
+    describe "salesByMerchantOrderQuery" $
+        it "responds with all payments for a merchant uuid" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                           , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                           , creditCardExpirationDate = "12/2023"
+                                                                                           , creditCardSecurityCode = Just "123"
+                                                                                           , creditCardBrand = "visa"
+                                                                                           }
+                                                            , paymentAmount = Just 10000
+                                                            , paymentRecurrentPayment = Just def { recurrentPaymentStartDate = Just "2018-12-03"
+                                                                                                 , recurrentPaymentInterval = Just IntervalAnnual
+                                                                                                 }
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+                query <- querySalesByMerchantOrderId uuid
+                liftIO $ pPrint query
+
+    describe "uncancelRecurrentPayment" $
+        it "uncancels recurrent payments" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                           , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                           , creditCardExpirationDate = "12/2023"
+                                                                                           , creditCardSecurityCode = Just "123"
+                                                                                           , creditCardBrand = "visa"
+                                                                                           }
+                                                            , paymentAmount = Just 10000
+                                                            , paymentRecurrentPayment = Just def { recurrentPaymentStartDate = Just "2018-12-03"
+                                                                                                 , recurrentPaymentInterval = Just IntervalAnnual
+                                                                                                 }
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+                let Just paymentId = join (recurrentPaymentRecurrentPaymentId <$> paymentRecurrentPayment (salePayment sale))
+                cancelRecurrentPayment paymentId
+                uncancelRecurrentPayment paymentId
+
+    describe "updateRecurrentPaymentPayment" $
+        it "works" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                           , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                           , creditCardExpirationDate = "12/2023"
+                                                                                           , creditCardSecurityCode = Just "123"
+                                                                                           , creditCardBrand = "visa"
+                                                                                           }
+                                                            , paymentAmount = Just 10000
+                                                            , paymentRecurrentPayment = Just def { recurrentPaymentStartDate = Just "2018-12-03"
+                                                                                                 , recurrentPaymentInterval = Just IntervalAnnual
+                                                                                                 }
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+                let Just paymentId = join (recurrentPaymentRecurrentPaymentId <$> paymentRecurrentPayment (salePayment sale))
+                updateRecurrentPaymentPayment paymentId
+                    def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                       , creditCardHolder = "Pedro Tacla Yamada"
+                                                       , creditCardExpirationDate = "12/2023"
+                                                       , creditCardSecurityCode = Just "123"
+                                                       , creditCardBrand = "visa"
+                                                       }
+                        , paymentAmount = Just 123
+                        , paymentInstallments = Just 1
+                        }
+                rpayment <- queryRecurrentSale paymentId
+                liftIO $ pPrint rpayment
+
+    describe "updateRecurrentPaymentNextPaymentAmount" $
+        it "works" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                           , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                           , creditCardExpirationDate = "12/2023"
+                                                                                           , creditCardSecurityCode = Just "123"
+                                                                                           , creditCardBrand = "visa"
+                                                                                           }
+                                                            , paymentAmount = Just 10000
+                                                            , paymentRecurrentPayment = Just def { recurrentPaymentStartDate = Just "2018-12-03"
+                                                                                                 , recurrentPaymentInterval = Just IntervalAnnual
+                                                                                                 }
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+                let Just rpaymentId = join (recurrentPaymentRecurrentPaymentId <$> paymentRecurrentPayment (salePayment sale))
+                updateRecurrentPaymentNextPaymentAmount rpaymentId 123413
+                rpayment <- queryRecurrentSale rpaymentId
+                liftIO $ pPrint rpayment
+
+    describe "updateRecurrentPaymentNextPaymentDate" $
+        it "works" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                           , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                           , creditCardExpirationDate = "12/2023"
+                                                                                           , creditCardSecurityCode = Just "123"
+                                                                                           , creditCardBrand = "visa"
+                                                                                           }
+                                                            , paymentAmount = Just 10000
+                                                            , paymentRecurrentPayment = Just def { recurrentPaymentStartDate = Just "2018-12-03"
+                                                                                                 , recurrentPaymentInterval = Just IntervalAnnual
+                                                                                                 }
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+                let Just rpaymentId = join (recurrentPaymentRecurrentPaymentId <$> paymentRecurrentPayment (salePayment sale))
+                updateRecurrentPaymentNextPaymentDate rpaymentId "2016-12-12"
+                rpayment <- queryRecurrentSale rpaymentId
+                liftIO $ pPrint rpayment
+
+    describe "querySale" $
+        it "works" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                           , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                           , creditCardExpirationDate = "12/2023"
+                                                                                           , creditCardSecurityCode = Just "123"
+                                                                                           , creditCardBrand = "visa"
+                                                                                           }
+                                                            , paymentAmount = Just 10000
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+                let Just paymentId = paymentPaymentId (salePayment sale)
+                sale' <- querySale paymentId
+                liftIO $ pPrint sale'
+
+    describe "captureSale / voidSale" $
+        it "works" $
+            runCielo cnf $ do
+                uuid <- getMerchantOrderId
+                sale <- createSale Sale { saleMerchantOrderId = uuid
+                                        , saleCustomer = def { customerName = "Pedro Tacla Yamada"
+                                                             }
+                                        , salePayment = def { paymentCreditCard = Just def { creditCardCardNumber = "0000000000000001"
+                                                                                      , creditCardHolder = "Pedro Tacla Yamada"
+                                                                                      , creditCardExpirationDate = "12/2023"
+                                                                                      , creditCardSecurityCode = Just "123"
+                                                                                      , creditCardBrand = "visa"
+                                                                                      }
+                                                            , paymentAmount = Just 10000
+                                                            }
+                                        }
+                liftIO $ pPrint sale
+                let Just paymentId = paymentPaymentId (salePayment sale)
+                sale''' <- captureSale paymentId (Just 9000) Nothing
+                liftIO $ pPrint sale'''
+                sale'' <- voidSale paymentId (Just 1000)
+                liftIO $ pPrint sale''
