如何在GJSON中循环切片

Question

How to looping range or regex #[1 - 12] to display based # in Library GJSON gjson library

example like this, I have picture json in below :

enter image description here

and I have try to looping like below

tempPayments:="Envelope.Body.GetCustomReportResponse.GetCustomReportResult.ContractSummary.PaymentCalendarList.PaymentCalendar."
resultPriod1 := gjson.Get(jsonString,tempPayments + "#.Date")
for _, datePriod := range resultPriod1.Array() {
    println(datePriod[1].String())
}

how to I can display result between range [1-10] ,in "#" ?

Answer 1

Result.Array() converts the current result to a slice of Result ([]Result). Hence, you can just take a slice for your desired range. e.g. resultPriod.Array()[0:12] to get the first 12 elements.

Take this simplified version as an example:

func main() {

    jsonString := `
{
    "PaymentCalendarList": {
        "PaymentCalendar": [
            {"ContractSubmitted": 10,
             "Date": "2018-01-01T01:01:01"},
            {"ContractSubmitted": 20,
             "Date": "2018-01-01T02:02:02"},
            {"ContractSubmitted": 30,
             "Date": "2018-01-01T03:03:03"}
            {"ContractSubmitted": 40,
             "Date": "2018-01-01T04:04:04"}
            {"ContractSubmitted": 50,
             "Date": "2018-01-01T05:05:05"}
        ]
    }
}`

    tempPayments := "PaymentCalendarList.PaymentCalendar."
    resultPeriod := gjson.Get(jsonString, tempPayments+"#.Date")

    # Take the first 3 results
    for _, datePeriod := range resultPeriod.Array()[0:3] {
        fmt.Println(datePeriod)
    }

}

Playground