`:Rest last` fails with "request failed" due to missing `nio.run()` in `run_last()`

[satoshiyamamoto]

Prerequisites

• I am using the latest stable release of Neovim
• I am using the latest version of the plugin
• I can reproduce the bug with minimal config below

Neovim Version

0.11.6

Operating system/version

MacOS 25.3.0

Actual behavior

Running :Rest last after executing a request always fails with a "request failed" notification. The error log shows:

ERROR | ... | lua/rest-nvim/request.lua:66 | request failed

Expected behavior

:Rest last should re-run the last executed HTTP request successfully, the same way :Rest run works.

Steps to reproduce

1. Open any .http file
2. Run a request with :Rest run
3. Run :Rest last
4. Observe the "request failed" notification and the error in :Rest logs

Root cause

This is a regression introduced in #535 (98f0bfc — "fix: prevent buffer change while parsing"), which moved nio.run() from inside run_request() to inside M.run(). However, M.run_last() was not updated to match.

run_request() calls .wait on a nio.control.Future, which requires being called inside a nio coroutine. After the refactor, M.run() correctly wraps the call in nio.run(), but M.run_last() still calls run_request() directly outside a coroutine:

-- M.run() — correctly wrapped
function M.run(name)
    nio.run(function()
        local req = parser.parse(...)
        run_request(req)  -- called inside nio coroutine ✓
    end)
end

-- M.run_last() — NOT wrapped, causes error
function M.run_last()
    local req = rest_nvim_last_request
    ...
    run_request(req)  -- called outside nio coroutine ✗
end

Fix: wrap run_request(req) in nio.run() inside M.run_last():

function M.run_last()
    local req = rest_nvim_last_request
    if not req then
        vim.notify("No last request found", vim.log.levels.WARN, { title = "rest.nvim" })
        return false
    end
    nio.run(function()
        run_request(req)
    end)
end

Minimal config for repro (using lazy.nvim)

vim.env.LAZY_STDPATH = ".repro"
load(vim.fn.system("curl -s https://raw.githubusercontent.com/folke/lazy.nvim/main/bootstrap.lua"))()

require("lazy.minit").repro({
    spec = {
        "rest-nvim/rest.nvim",
        {
            "nvim-treesitter/nvim-treesitter",
            build = ":TSUpdate",
            main = "nvim-treesitter.configs",
            opts = {
                ensure_installed = { "http" },
                sync_install = false,
                highlight = { enable = true },
                indent = { enable = true },
            },
        },
    },
})

Then open a .http file, run :Rest run, then :Rest last.

Other information

• Regression introduced in commit 98f0bfc (released in v3.11.2)
• :Rest run works correctly; only :Rest last is affected