From bbd6a465ab6c3dfc96e0c63f0a42808a9f88302d Mon Sep 17 00:00:00 2001
From: Matthias Kruk <m@m10k.eu>
Date: Thu, 25 Mar 2021 07:20:36 +0900
Subject: [PATCH] include/json: Add functions for creating json objects and
 arrays

Especially when interacting with REST-ful APIs via curl, it can be handy
to have functions to quickly generate JSON objects without having to
invoke jq. This commit adds functions for generating simple JSON objects
and arrays.
---
 include/json.sh | 81 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 include/json.sh

diff --git a/include/json.sh b/include/json.sh
new file mode 100644
index 0000000..569c6e8
--- /dev/null
+++ b/include/json.sh
@@ -0,0 +1,81 @@
+#!/bin/bash
+
+__init() {
+	if ! include "log"; then
+		return 1
+	fi
+
+	return 0
+}
+
+json_object() {
+        local argc
+        local i
+        local nvps
+
+        argc="$#"
+        nvps=0
+
+        if (( argc % 2 != 0 )); then
+                log_error "Invalid number of arguments"
+                return 1
+        fi
+
+        printf "{"
+        for (( i = 1; i <= argc; i++ )); do
+                local name
+                local value
+
+                name="${!i}"
+                ((i++))
+                value="${!i}"
+
+                if [ -z "$name" ] || [ -z "$value" ]; then
+                        continue
+                fi
+
+                if (( nvps > 0 )); then
+                        printf ', '
+                fi
+
+                if [[ "$value" =~ ^[0-9]+$ ]]; then
+                        printf '"%s": %d' "$name" "$value"
+                else
+                        printf '"%s": "%s"' "$name" "$value"
+                fi
+
+                ((nvps++))
+        done
+        printf "}\n"
+
+        return 0
+}
+
+json_array() {
+	local arg
+	local n
+
+	printf "["
+	n=0
+
+	for arg in "$@"; do
+		if [ -z "$arg" ]; then
+			continue
+		fi
+
+		if (( n > 0 )); then
+			printf ", "
+		fi
+
+		if [[ "$arg" =~ ^[0-9]+$ ]]; then
+			printf '%d' "$arg"
+		else
+			printf '"%s"' "$arg"
+		fi
+
+		((n++))
+	done
+	printf "]\n"
+
+	return 0
+}
-- 
2.47.3