massive: move a lot of things

x-tba/swapi-api-client/request.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+)
+
+// MaxResponseSize limits the response bytes from the API
+const MaxResponseSize = 2 << 16
+
+// creating a robust http getter (lecture? :))
+func request(ctx context.Context, url string) ([]byte, error) {
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	req = req.WithContext(ctx)
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		// Get the error from the context.
+		// It may contain more useful data.
+		select {
+		case <-ctx.Done():
+			err = ctx.Err()
+		default:
+		}
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("Bad Status: %d", resp.StatusCode)
+	}
+
+	// Prevents the api to shoot us unlimited amount of data
+	r := io.LimitReader(resp.Body, MaxResponseSize)
+
+	return ioutil.ReadAll(r)
+}