fix: parsing of nested tables in request body

Author: udayvir-singh

lua/rest-nvim/config/init.lua

@@ -15,22 +15,15 @@ local config = {
     formatters = {
       json = "jq",
       html = function(body)
-        return vim.fn
-          .system({
-            "tidy",
-            "-i",
-            "-q",
-            "--tidy-mark",
-            "no",
-            "--show-body-only",
-            "auto",
-            "--show-errors",
-            "0",
-            "--show-warnings",
-            "0",
-            "-",
-          }, body)
-          :gsub("\n$", "")
+        -- stylua: ignore
+        return vim.fn.system({
+          "tidy", "-i", "-q",
+          "--tidy-mark",      "no",
+          "--show-body-only", "auto",
+          "--show-errors",    "0",
+          "--show-warnings",  "0",
+          "-",
+        }, body):gsub("\n$", "")
       end,
     },
   },

lua/rest-nvim/request/init.lua

@@ -72,10 +72,18 @@ local function get_body(bufnr, start_line, stop_line, has_json)
   end
 
   local is_json, json_body = pcall(vim.fn.json_decode, body)
+
   if is_json then
     if has_json then
+      -- convert entire json body to string.
       return vim.fn.json_encode(json_body)
     else
+      -- convert nested tables to string.
+      for key, val in pairs(json_body) do
+        if type(val) == "table" then
+          json_body[key] = vim.fn.json_encode(val)
+        end
+      end
       return json_body
     end
   end