Implémenter route API de lecture de document

cmd/server.go

@@ -360,9 +360,57 @@ func handleV1DocumentCreate(c echo.Context) error {
 
 // handleV1DocumentRead permet de lire le contenu d'un fichier et protentiellement de le télécharger
 func handleV1DocumentRead(c echo.Context) error {
-	return c.JSON(http.StatusNotImplemented, map[string]string{
+	documents_endpoint := viper.GetString("server.documents.endpoint")
-		"message": "Not Implemented",
+	documents_access_key_id := viper.GetString("server.documents.access_key_id")
+	documents_secret_access_key := viper.GetString("server.documents.secret_access_key")
+	documents_use_ssl := viper.GetBool("server.documents.use_ssl")
+
+	bucket := c.Param("bucket")
+	document := c.Param("document")
+
+	ctx, cancel := context.WithCancel(context.Background())
+
+	defer cancel()
+
+	// Initialize minio client object
+	client, err := minio.New(documents_endpoint, &minio.Options{
+		Creds:  credentials.NewStaticV4(documents_access_key_id, documents_secret_access_key, ""),
+		Secure: documents_use_ssl,
 	})
+	if err != nil {
+		return c.JSON(http.StatusInternalServerError, map[string]string{
+			"message": "Error during minio#New",
+		})
+	}
+
+	bucket_exists, err := client.BucketExists(ctx, bucket)
+	if err != nil {
+		return c.JSON(http.StatusInternalServerError, "Error during minio#BucketExists")
+	}
+
+	if !bucket_exists {
+		return c.JSON(http.StatusNotFound, map[string]string{"message": "Not Found"})
+	}
+
+	document_info, err := client.StatObject(ctx, bucket, document, minio.StatObjectOptions{})
+	if err != nil {
+		return c.JSON(http.StatusInternalServerError, map[string]string{
+			"message": "Error during minio#StatObject",
+		})
+	}
+
+	_ = document_info
+
+	document_object, err := client.GetObject(ctx, bucket, document, minio.GetObjectOptions{})
+	if err != nil {
+		return c.JSON(http.StatusInternalServerError, map[string]string{
+			"message": "Error during minio#GetObject",
+		})
+	}
+
+	defer document_object.Close()
+
+	return c.Stream(http.StatusOK, document_info.ContentType, document_object)
 }
 
 // handleV1DocumentUpdate permet de mettre à jour certains champs d'un object, comme le Content-Type ou le Filename