1 files changed, 48 insertions, 0 deletions
diff --git a/pkg/apod/json.go b/pkg/apod/json.go
new file mode 100644
index 0000000..4589925
--- /dev/null
+++ b/pkg/apod/json.go
@@ -0,0 +1,48 @@
+package apod
+
+import (
+	"encoding/json"
+	"fmt"
+	"regexp"
+
+	"framagit.org/andinus/cetus/pkg/cetus"
+)
+
+// Res holds the response from the api.
+type Res struct {
+	Copyright      string `json:"copyright"`
+	Date           string `json:"date"`
+	Explanation    string `json:"explanation"`
+	HDURL          string `json:"hdurl"`
+	MediaType      string `json:"media_type"`
+	ServiceVersion string `json:"service_version"`
+	Title          string `json:"title"`
+	URL            string `json:"url"`
+
+	Code int    `json:"code"`
+	Msg  string `json:"msg"`
+}
+
+// UnmarshalJson will take body as input & unmarshal it to res
+func UnmarshalJson(res *Res, body string) error {
+	err := json.Unmarshal([]byte(body), res)
+	if err != nil {
+		return fmt.Errorf("UnmarshalJson failed\n%s", err.Error())
+	}
+	return nil
+}
+
+// GetJson returns json response received from the api
+func GetJson(reqInfo map[string]string) (string, error) {
+	re := regexp.MustCompile("((19|20)\\d\\d)-(0?[1-9]|1[012])-(0?[1-9]|[12][0-9]|3[01])")
+	if !re.MatchString(reqInfo["date"]) {
+		return "", fmt.Errorf("%s does not match format 'YYYY-MM-DD'", reqInfo["date"])
+	}
+
+	params := make(map[string]string)
+	params["api_key"] = reqInfo["apiKey"]
+	params["date"] = reqInfo["date"]
+
+	body, err := cetus.GetRes(reqInfo["api"], params)
+	return string(body), err
+}