DXE-2672 400 Error - SIEM API

Describe the issue Using this library for the SIEM API (https://techdocs.akamai.com/siem-integration/reference/get-configid) returns a 400 error for missing parameters.

To Reproduce Steps to reproduce the behavior:

import (
   "github.com/akamai/AkamaiOPEN-edgegrid-golang/v5/pkg/edgegrid"
    ...
)

config := &edgegrid.Config{
   Host: host,
   ClientToken: clienttoken,
   ClientSecret: clientsecret,
   AccessToken: accesstoken,
}

path := "siem/v1/configs/12345?from=1488816784&to=1488816442&limit=1"
req, err := http.NewRequest("GET", fmt.Sprintf("https://%s/%s", host, path), nil)

if err != nil {
   fmt.Println(err)
}

config.SignRequest(req)

client := &http.Client{}
resp,err2 := client.Do(req)

if err2 != nil{
   fmt.Println(err2)
}

out, _ := io.ReadAll(resp.Body)
var unmarshal map[string]interface{}
json.Unmarshal(out, &unmarshal)
fmt.Printf("%+v",string(out))

Expected behavior An endpoint with a similar format https://host/prolexic-analytics/v2/time-series?destinations=ip&locations=agr&source=both works with this library using the above example, so it is unexpected for the SIEM endpoint not to work.

Actual behavior It outputs this error.

{
'type': 'https://problems.cloudsecurity.akamaiapis.net/siem/v1/missing-parameters',
'title': 'Missing mandatory parameter(s) or illegal parameter parameter(s) in the request',
'instance': 'https://{host}/siem/v1/configs/{configid}?from={from}',
'detail': 'Missing mandatory parameter(s) or illegal parameter parameter(s) in the request',
'method': 'GET'
...
}

Judging from the instance above, it appears that only the first query parameter is being recognized. If the & character is encoded to %26 in the signature generation then the instance variable changes to 'instance': 'https://{host}/siem/v1/configs/{configid}?from={from}&to={to}&limit={limit}', but gives a 401 error for the signature not matching. If the & character is encoded to %26 in the request and signature, then it returns a 400 error for missing parameters.

Please add a working example using this library for this endpoint (https://techdocs.akamai.com/siem-integration/reference/get-configid).

akamai / AkamaiOPEN-edgegrid-golang

DXE-2672 400 Error - SIEM API #185