QueryParams attribute with map[string]string type doesn't support query array params

[daltemen]

Hello everyone.

I'm trying to get the category stats. https://sendgrid.com/docs/API_Reference/Web_API_v3/Stats/categories.html

this service supports query array params
...&categories=cat1&categories=cat2

and i see that the Request struct:

// Request holds the request to an API Call.
type Request struct {
	...
	QueryParams map[string]string
	...
}

of course you can't have two equal keys.

I've temporarily solved it by creating some functions to use directly

params := url.Values{}

perhaps it is an improvement that the query params can be rather.

// Request holds the request to an API Call.
type Request struct {
	...
	QueryParams map[string][]string
	...
}

Technical details:

• sendgrid-go version: v3.5.0
• go version: go1.13.6

[childish-sambino]

This issue has been added to our internal backlog to be prioritized. Pull requests and +1s on the issue summary will help it move up the backlog.