Add caching to ListLocationArea method

internal/pokeapi/location_area_req.go

@@ -14,6 +14,18 @@ func (c *Client) ListLocationArea(pageURL *string) (LocationAreasResp, error) {
 		fullUrl = *pageURL
 	}
 
+	dat, ok := c.cache.Get(fullUrl)
+	if ok {
+		fmt.Println("cache hit!")
+		locationAreasResp := LocationAreasResp{}
+		err := json.Unmarshal(dat, &locationAreasResp)
+		if err != nil {
+			return LocationAreasResp{}, err
+		}
+		return locationAreasResp, nil
+	}
+	fmt.Println("cache miss!")
+
 	req, err := http.NewRequest("GET", fullUrl, nil)
 	if err != nil {
 		return LocationAreasResp{}, err
@@ -29,7 +41,7 @@ func (c *Client) ListLocationArea(pageURL *string) (LocationAreasResp, error) {
 		return LocationAreasResp{}, fmt.Errorf("bad status code: %v", resp.StatusCode)
 	}
 
-	dat, err := io.ReadAll(resp.Body)
+	dat, err = io.ReadAll(resp.Body)
 	if err != nil {
 		return LocationAreasResp{}, err
 	}
@@ -40,5 +52,7 @@ func (c *Client) ListLocationArea(pageURL *string) (LocationAreasResp, error) {
 		return LocationAreasResp{}, err
 	}
 
+	c.cache.Add(fullUrl, dat)
+
 	return locationAreasResp, nil
 }

internal/pokeapi/pokeapi.go

@@ -3,16 +3,20 @@ package pokeapi
 import (
 	"net/http"
 	"time"
+
+	"github.com/jurichar/pokedexcli/internal/pokecache"
 )
 
 const baseURL = "https://pokeapi.co/api/v2/"
 
 type Client struct {
+	cache      pokecache.Cache
 	httpClient http.Client
 }
 
-func NewClient() Client {
+func NewClient(cacheInterval time.Duration) Client {
 	return Client{
+		cache: pokecache.NewCache(cacheInterval),
 		httpClient: http.Client{
 			Timeout: time.Minute,
 		},

main.go

@@ -1,6 +1,10 @@
 package main
 
-import "github.com/jurichar/pokedexcli/internal/pokeapi"
+import (
+	"time"
+
+	"github.com/jurichar/pokedexcli/internal/pokeapi"
+)
 
 type config struct {
 	pokeapiClient   pokeapi.Client
@@ -11,7 +15,7 @@ type config struct {
 func main() {
 
 	cfg := config{
-		pokeapiClient: pokeapi.NewClient(),
+		pokeapiClient: pokeapi.NewClient(time.Hour),
 	}
 	startRepl(&cfg)
 }