diff --git a/common/json_parse_simple.c b/common/json_parse_simple.c
index cf781611e..f7ce964ca 100644
--- a/common/json_parse_simple.c
+++ b/common/json_parse_simple.c
@@ -187,6 +187,15 @@ const jsmntok_t *json_get_arr(const jsmntok_t tok[], size_t index)
 	return NULL;
 }
 
+const char *json_get_id(const tal_t *ctx,
+			const char *buffer, const jsmntok_t *obj)
+{
+	const jsmntok_t *idtok = json_get_member(buffer, obj, "id");
+	if (!idtok)
+		return NULL;
+	return json_strdup(ctx, buffer, idtok);
+}
+
 /*-----------------------------------------------------------------------------
 JSMN Result Validation Starts
 -----------------------------------------------------------------------------*/
diff --git a/common/json_parse_simple.h b/common/json_parse_simple.h
index d0670b013..4188a4eb4 100644
--- a/common/json_parse_simple.h
+++ b/common/json_parse_simple.h
@@ -62,6 +62,10 @@ const jsmntok_t *json_get_member(const char *buffer, const jsmntok_t tok[],
 /* Get index'th array member. */
 const jsmntok_t *json_get_arr(const jsmntok_t tok[], size_t index);
 
+/* Helper to get "id" field from object. */
+const char *json_get_id(const tal_t *ctx,
+			const char *buffer, const jsmntok_t *obj);
+
 /* Allocate a starter array of tokens for json_parse_input */
 jsmntok_t *toks_alloc(const tal_t *ctx);