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@acolyer
acolyer / service-checklist.md
Last active September 24, 2025 07:57
Internet Scale Services Checklist

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

Basic tenets

  • Does the design expect failures to happen regularly and handle them gracefully?
  • Have we kept things as simple as possible?
@ramanathanrv
ramanathanrv / gateway_routing_logic_samples
Last active February 15, 2017 17:35
Routing Logic for choosing the best gateway to handle your transaction
// WARNING: This code is a sample to test your logic of gateway priority. This is NOT to be used as such.
def order = [order_id: "ord_id", amount: 1000.00, udf1:"web", udf2: "desktop", gateway_id: 2]
def txn = [txn_id: "txn_id", express_checkout: true, add_to_locker: false ]
def payment = [card_isin: "524368", card_issuer: "HDFC Bank", card_type: "CREDIT"]
def setGatewayPriority = { gateways ->
println "priority: " + gateways;
}