use sha checksum as the id

2 files changed, 7 insertions, 7 deletions

diff --git a/entry.go b/entry.go
index 1615392..a91e0b7 100644
--- a/entry.go
+++ b/entry.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"crypto/sha256"
 	"encoding/json"
 	"fmt"
 )
@@ -14,13 +15,15 @@ type entry struct {
 	Body   string   `json:"body"`
 	Shared []shared `json:"shared,omitempty"`
 	Epoch  int      `json:"epoch,omitempty"`
+	id     string
 }
 
-func newEntry(data []byte) (entry, error) {
+func newEntry(bytes []byte) (entry, error) {
 	var entry entry
-	if err := json.Unmarshal(data, &entry); err != nil {
+	if err := json.Unmarshal(bytes, &entry); err != nil {
 		return entry, fmt.Errorf("unable to deserialise payload: %w", err)
 	}
+	entry.id = fmt.Sprintf("%x", sha256.Sum256(bytes))
 	return entry, nil
 }
 
diff --git a/submit.go b/submit.go
index 2c65d6b..3b94015 100644
--- a/submit.go
+++ b/submit.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"crypto/sha256"
 	"fmt"
 	"io"
 	"net/http"
@@ -10,7 +9,7 @@ import (
 
 func handleSubmit(w http.ResponseWriter, r *http.Request, dataDir string) error {
 	if r.Method != "POST" {
-		return fmt.Errorf("Expexted POST request")
+		return fmt.Errorf("expexted POST request")
 	}
 
 	bytes, err := io.ReadAll(r.Body)
@@ -22,9 +21,7 @@ func handleSubmit(w http.ResponseWriter, r *http.Request, dataDir string) error
 	if err != nil {
 		return err
 	}
-
-	filePath := fmt.Sprintf("%s/%s/%x.json", dataDir,
-		time.Now().Format("2006"), sha256.Sum256(bytes))
+	filePath := fmt.Sprintf("%s/%s/%s.json", dataDir, time.Now().Format("2006"), entry.id)
 
 	jsonStr, err := entry.serialize()
 	if err != nil {