Require json #17

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1. rocklee44 commented on May 25, 2022

   

   rocklee44

   on May 25, 2022

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   My server Centos 8(minimal) has already lua-5.3.4 installed , and I also installed lua-json

   rpm -qa | grep lua
   lua-json-1.3.2-9.el8.noarch
   lua-libs-5.3.4-12.el8.x86_64
   lua-lpeg-1.0.1-6.el8.x86_64
   lua-5.3.4-12.el8.x86_64
   

   I fixed it by editing /usr/local/etc/haproxy/http.lua

   --local json = require "json"
   local json = { _version = "1.3.2" }
   

   It works fine now.
2. schklom commented on Apr 23, 2023

   

   schklom

   on Apr 23, 2023

   Last edited by schklom

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   I don't remember where I read this, but I loaded https://github.com/rxi/json.lua with

   	lua-load		/var/etc/haproxy/luascript_json.lua
   	lua-load		/var/etc/haproxy/luascript_auth-request.lua
   	lua-prepend-path /usr/local/share/lua/5.3/haproxy-lua-http.lua
   

   to work for Authelia, and it works.

   👍React with 👍2Reacted by kumy and Enissay
3. james-d-elliott commented on Apr 12, 2024

   

   james-d-elliott

   on Apr 12, 2024

   Last edited by james-d-elliott

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   Pretty sure this is a dist issue with the various operating systems. Here's my test script I used to help diagnose it:

   local json = require "json"
   
   print("hello world")

   Running that reveals the if the issue is exists because of the install or if it's something else (if it prints an error it's due to the versions installed of lua and lua-json which are conflicting, if it runs it's something else, if it runs after suggested fixes it shows it should now work), also reveals the search path lua is using (snippet 2). If you then use a tool like mlocate to find the locations json.lua exists you'll note that it may not exist for the version of lua you have installed. In which case you have to install a compatible lua version or use the workaround by @schklom.

   Some example outputs for Ubuntu 22.04:

   # lua -v
   Lua 5.4.4  Copyright (C) 1994-2022 Lua.org, PUC-Rio

   # lua example.lua
   lua: example.lua:1: module 'json' not found:
   	no field package.preload['json']
   	no file '/usr/local/share/lua/5.4/json.lua'
   	no file '/usr/local/share/lua/5.4/json/init.lua'
   	no file '/usr/local/lib/lua/5.4/json.lua'
   	no file '/usr/local/lib/lua/5.4/json/init.lua'
   	no file '/usr/share/lua/5.4/json.lua'
   	no file '/usr/share/lua/5.4/json/init.lua'
   	no file './json.lua'
   	no file './json/init.lua'
   	no file '/usr/local/lib/lua/5.4/json.so'
   	no file '/usr/lib/x86_64-linux-gnu/lua/5.4/json.so'
   	no file '/usr/lib/lua/5.4/json.so'
   	no file '/usr/local/lib/lua/5.4/loadall.so'
   	no file './json.so'
   stack traceback:
   	[C]: in function 'require'
   	example.lua:1: in main chunk
   	[C]: in ?

   # locate json.lua
   /usr/share/lua/5.1/json.lua
   /usr/share/lua/5.2/json.lua
   /usr/share/lua/5.3/json.lua

   Fix for Ubuntu 22.04:

   apt remove lua5.4 && apt install lua5.3

   Seems in this specific fix it doesn't fix it for haproxy, it still has issues loading the module which is very odd.
4. piengeng commented on Dec 26, 2024

   

   piengeng

   on Dec 26, 2024

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   was on ubuntu 24.04 with lua-json package, have to workaround with below, since 5.2/5.3 all point back to 5.1

   sudo cp -R /usr/share/lua/5.3/json /usr/share/lua/5.4
   sudo cp -P /usr/share/lua/5.3/json.lua /usr/share/lua/5.4/