add hostPrefix

[KamranBiglari]

No description provided.

[CLAassistant]

All committers have signed the CLA.

[KamranBiglari]

#57

[windmgc]

Code LGTM, could you add some simple test case and a changelog entry?

[KamranBiglari]

@windmgc Thank you for you changes. Where should I put changelog ?

This is required to SFN since startSyncExecution has hostPrefix which is different that sfn endpoint.

local AWS = require("resty.aws")
local aws = AWS()
local sfn = aws:SFN { region = "us-east-2" }
local results, err = sf:startSyncExecution  {
    stateMachineArn = ""
    input = cjson.encode( {} )
}

[Tieske]

Thank you for you changes. Where should I put changelog ?

It's in the README, just add to the "unreleased" item at the top of the changelist (if there is none, then add one)