My first Landmark User Web Service

cleverly

The LPL guide has two pages of information about Landmark Webservice Interface (one page of syntax, one page of example).

The example, however, is dated in several ways (endpoint URL is no longer valid, uses SOAP rather than REST, etc.)

I thought I'd share here my first UserWebServiceInterface definition for a public web service to do a foreign exchange lookup:

OANDA is a WebserviceInterface

    wsdlURL is ""
    endpoint is "https://fxds-public-exchange-rates-api.oanda.com/cc-api"
    service is OANDA
    service style is REST

    GetFxRate is a Find Action
        run in foreground
        method is "currencies?base=<FromCurrency>&quote=<ToCurrency>&data_type=general_currency_pair&start_date=<BegDate>&end_date=<EndDate>"
        Input Record namespace is ""
            FromCurrency is AlphaUpper size 3
            ToCurrency   is AlphaUpper size 3
            BegDate      is Text 
            EndDate      is Text

        Output Record
            JSONResponse is JSONObject

Then I use it in a user defined action on CurrencyRelationship:

            invoke GetFxRate OANDA
                invoked.FromCurrency = CurrencyRelationship.FromCurrency
                invoked.ToCurrency   = CurrencyRelationship.ToCurrency
                invoked.BegDate      = PrmBegDate
                invoked.EndDate      = PrmDateTxt
                Response             = result.JSONResponse

Dr. Awesome

Fancy!