Client.Do()

1 files changed, 34 insertions, 0 deletions

diff --git a/jttp.go b/jttp.go
new file mode 100644
index 0000000..34c6fd6
--- /dev/null
+++ b/jttp.go
@@ -0,0 +1,34 @@
+package jttp
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+type Client struct {
+	c *http.Client
+}
+
+func NewClient(c *http.Client) *Client {
+	return &Client{c}
+}
+
+// Do sends an HTTP request, checks that the response status code matches
+// wantStatus, and decodes the JSON response body into resp.
+//
+// An error is returned if the HTTP request fails, the response status
+// code does not equal wantStatus, or the JSON decoding fails.
+func (c *Client) Do(req *http.Request, wantStatus int, resp any) error {
+	hresp, err := c.c.Do(req)
+	if err != nil {
+		return err
+	}
+	defer hresp.Body.Close()
+	if hresp.StatusCode != wantStatus {
+		return fmt.Errorf("jttp: %s %s: %s (expected %d)",
+			req.Method, req.URL, hresp.Status, wantStatus)
+	}
+	dec := json.NewDecoder(hresp.Body)
+	return dec.Decode(resp)
+}