Overview of Spreedly Core API endpoints

spreedly-core-api.txt

OPTIONS https://spreedlycore.com/v1/gateways.xml                     => list supported gateways
POST    https://spreedlycore.com/v1/gateways.xml                     => add a gateway
GET     https://spreedlycore.com/v1/gateways.xml                     => list all added gateways
PUT     https://spreedlycore.com/v1/gateways/token.xml               => Update gateway
PUT     https://spreedlycore.com/v1/gateways/token/redact.xml        => Remove sensitive gateway data
POST    https://spreedlycore.com/v1/gateways/token/purchase.xml      => purchase - supply a payment method token also
POST    https://spreedlycore.com/v1/gateways/token/authorize.xml     => authorize - supply a payment method token also

POST    https://spreedlycore.com/v1/payment_methods                  => Capture credit card from form - transparent redirect magic
GET     https://spreedlycore.com/v1/payment_methods.xml              => list all retained credit cards
GET     https://spreedlycore.com/v1/payment_methods/token.xml        => Details for a specific credit card
POST    https://spreedlycore.com/v1/payment_methods/token/retain.xml => Store credit card info
POST    https://spreedlycore.com/v1/payment_methods/token/redact.xml => Remove credit card info
POST    https://spreedlycore.com/v1/payment_methods/token.xml        => Update non-sensitive info about a credit card
GET     https://spreedlycore.com/v1/payment_methods/token/transactions.xml  => List transactions against a specific credit card
                
GET     https://spreedlycore.com/v1/transactions.xml                 => List all transactions
GET     https://spreedlycore.com/v1/transactions/token.xml           => Details for a specific transaction
GET     https://spreedlycore.com/v1/transactions/token/transcript    => Raw transcript for a transaction
POST    https://spreedlycore.com/v1/transactions/token/capture.xml   => capture 
POST    https://spreedlycore.com/v1/transactions/token/void.xml      => void
POST    https://spreedlycore.com/v1/transactions/token/credit.xml    => credit
POST    https://spreedlycore.com/v1/transactions/token/purchase.xml  => purchase using reference transaction

GET     https://spreedlycore.com/v1/callbacks/[callback_id]/conversations.xml  => Details of all conversations with a particular callback endpoint. Returned in transaction XML; not meant to be constructed directly.

Normal flow:

Form -> POST -> Redirect -> Call Purchase API -> Success

Offsite flow:

Form -> POST -> Redirect -> Call Purchase API -> Redirect to checkout_url -> Redirect URL OR callback received -> Lookup transaction to check for success

(The callback actually returns signed transaction data, so you can skip the lookup there if you'd like).