From 31a28850334fb26bd6e8a61f057ea5b72c294627 Mon Sep 17 00:00:00 2001
From: Matthias Kruk <m@m10k.eu>
Date: Mon, 5 Jul 2021 08:01:01 +0900
Subject: [PATCH] include/json: Add json_object_get() function

The json module doesn't provide any functions to retrieve data from
within JSON types, requiring users to call jq (or other parsers)
directly.
This commit adds the json_object_get() function, which allows the user
to retrieve the value of a field in a JSON object.
---
 include/json.sh | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/json.sh b/include/json.sh
index 606b15c..b9b0469 100644
--- a/include/json.sh
+++ b/include/json.sh
@@ -80,6 +80,20 @@ json_object() {
         return 0
 }
 
+json_object_get() {
+	local object="$1"
+	local field="$2"
+
+	local value
+
+	if ! value=$(jq -e -r ".$field" <<< "$object"); then
+		return 1
+	fi
+
+	echo "$value"
+	return 0
+}
+
 json_array() {
 	local args=("$@")
 
-- 
2.47.3