Access MCTechTree from inside Computercraft. Needs HTTP API enabled.

mctechtree.lua

args={...}
url="http://mctechtree.herokuapp.com/solve.lua"
name=table.concat(args, ' ')
-- TODO: split on commas, pass multiple items
local request = http.post(url, "items[]="..name)
if request == nil then
  error("Error making request")
end
data=request.readAll();
loadstring(data)()
local raw = result.raw
local crafts = result.crafts

function printRaw(items)
  local text = "Required resources:\n"
  for i,row in ipairs(items) do
    local obj = row[1]
    local count = row[2]
    local stackinfo = row[3]
    if stackinfo then
      text = text .. count .. " " .. obj .. " (" .. stackinfo .. ")\n"
    else
      text = text .. count .. " " .. obj .. "\n"
    end
  end
  return text
end

function printCrafts(crafts)
  local sc
  local rm
  local text = "Crafting:\n"
  for i,row in ipairs(crafts) do
    if row.num then text = text .. row.num .. ".\n" end
    if row.count > 1 then sc = (row.count .. " ") else sc = "" end
    if row.machine then rm = ("using " .. row.machine .. " craft") else rm = "craft" end
    text = text .. rm .. " " .. sc .. row.result .. " from " .. row.ingredients .. "\n"
  end
  return text
end

textutils.pagedPrint(printRaw(raw) .. printCrafts(crafts), 12)