Can one use Query Params that have duplicate keys?

[mikequentel]

Is it possible to make the Query Params user interface of Grafana/grafana-csv-datasource accept duplicate keys?

The reason I would like to do this is because I have a web service implemented in Go using Gin that can accept URL parameters that become a list, to populate a struct named Query, where issueLinkTypeNames (for example) can take a list, but this list is typically resolved from URL parameters that are repeated (this appears to be a normal way to do this). This web service successfully returns the CSV when these parameters are passed like this example:

&issueLinkTypeNameExcludes=Relates&issueLinkTypeNameExcludes=Affects

The struct Query that gets populated has some []string fields like this:

package model

type Query struct {
...
	IssueLinkTypeNameExcludes   []string `form:"issueLinkTypeNameExcludes"`
	IssueLinkStatusExcludes     []string `form:"issueLinkStatusExcludes"`
	IssueLinkKeyExcludes        []string `form:"issueLinkKeyExcludes"`
...
}

But the records in Grafana (from grafana-csv-datasource) do not show the expected results because only one of the values of issueLinkTypeNameExcludes is being sent to the web service. This behaviour is definitely happening only through Grafana.

[mikequentel]

Work-around solution

Use a comma-delimited string for the value, then check for this situation and set the struct members accordingly. In other words, so that the Query Param can be myparam and the values value1,value2,value3 etc.

	issueLinkTypeNameExcludes, issueLinkTypeNameExcludesParamExists := c.GetQuery("issueLinkTypeNameExcludes")
	if issueLinkTypeNameExcludesParamExists == true {
		if strings.Contains(issueLinkTypeNameExcludes, ",") {
			qry.IssueLinkTypeNameExcludes = strings.Split(issueLinkTypeNameExcludes, ",")
		}
	}
	issueLinkStatusExcludes, issueLinkStatusExcludesParamExists := c.GetQuery("issueLinkStatusExcludes")
	if issueLinkStatusExcludesParamExists == true {
		if strings.Contains(issueLinkStatusExcludes, ",") {
			qry.IssueLinkStatusExcludes = strings.Split(issueLinkStatusExcludes, ",")
		}
	}