2 files changed, 25 insertions, 0 deletions
diff --git a/lua/nvim-lsp-installer/core/clients/crates.lua b/lua/nvim-lsp-installer/core/clients/crates.lua
new file mode 100644
index 00000000..f12a8356
--- /dev/null
+++ b/lua/nvim-lsp-installer/core/clients/crates.lua
@@ -0,0 +1,23 @@
+local fetch = require "nvim-lsp-installer.core.fetch"
+local M = {}
+
+---@alias Crate {crate: {id: string, max_stable_version: string, max_version: string, newest_version: string}}
+
+---@param crate string
+---@param callback fun(err: string|nil, data: Crate|nil)
+function M.fetch_crate(crate, callback)
+    fetch(("https://crates.io/api/v1/crates/%s"):format(crate), function(err, data)
+        if err then
+            callback(err, nil)
+            return
+        end
+        local ok, response = pcall(vim.json.decode, data)
+        if not ok then
+            callback("Failed to deserialize crates.io API response.", nil)
+            return
+        end
+        callback(nil, response)
+    end)
+end
+
+return M
diff --git a/lua/nvim-lsp-installer/core/receipt.lua b/lua/nvim-lsp-installer/core/receipt.lua
index 834bb68c..c29ebde7 100644
--- a/lua/nvim-lsp-installer/core/receipt.lua
+++ b/lua/nvim-lsp-installer/core/receipt.lua
@@ -9,6 +9,7 @@ local M = {}
 ---| '"pip3"'
 ---| '"gem"'
 ---| '"go"'
+---| '"cargo"'
 ---| '"dotnet"'
 ---| '"unmanaged"'
 ---| '"system"'
@@ -115,6 +116,7 @@ InstallReceiptBuilder.pip3 = package_source "pip3"
 InstallReceiptBuilder.gem = package_source "gem"
 InstallReceiptBuilder.go = package_source "go"
 InstallReceiptBuilder.dotnet = package_source "dotnet"
+InstallReceiptBuilder.cargo = package_source "cargo"
 
 InstallReceiptBuilder.unmanaged = { type = "unmanaged" }