Implements PageSize to requests

[phillc]

It did not feel right scripting the creation of minimum page size + 1 records to test this. I made a quick script to test it manually.

package main

import (
	"context"
	"fmt"

	"github.com/linode/linodego"
	"golang.org/x/oauth2"

	"log"
	"net/http"
	"os"
)

func main() {
	apiKey, ok := os.LookupEnv("LINODE_TOKEN")
	if !ok {
		log.Fatal("Could not find LINODE_TOKEN, please assert it is set.")
	}
	tokenSource := oauth2.StaticTokenSource(&oauth2.Token{AccessToken: apiKey})

	oauth2Client := &http.Client{
		Transport: &oauth2.Transport{
			Source: tokenSource,
		},
	}

	linodeClient := linodego.NewClient(oauth2Client)
	linodeClient.SetDebug(true)

	opts := linodego.ListOptions{PageOptions: &linodego.PageOptions{Page: 2}, PageSize: 500}
	res, err := linodeClient.ListVolumes(context.Background(), &opts)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%v", res)
}

PageSize is on ListOptions instead of PageOptions because PageOptions appears to be structured to be deserialized from every request, and page size is not echoed back by the api server.

[0xch4z]

LGTM