Google QPX Express API client written in Go.
The QPX Express API service will end on April 10, 2018.
...
params := make(goqpx.RequestParams)
params[goqpx.Origin] = "JFK"
params[goqpx.Destination] = "ORD"
params[goqpx.AdultPassengers] = "1"
params[goqpx.DepartureDate] = "2016-08-01"
params[goqpx.SolutionsNumber] = "10"
response, err := goqpx.PerformRequest(params, _yourGoogleAPIKey_)
...