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chore(copilot): use GH_HOST for Copilot endpoints and token lookup #2705

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chore(copilot): use GH_HOST for Copilot endpoints and token lookup #2705

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7 changes: 5 additions & 2 deletions lua/codecompanion/adapters/http/copilot/init.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -34,8 +34,11 @@ end
---@return table
local function handlers(adapter)
local model_opts = resolve_model_opts(adapter)
local current_url = adapter.url or "https://api.githubcopilot.com/chat/completions"
local base_url = current_url:gsub("/chat/completions$", ""):gsub("/responses$", "")
Comment on lines +37 to +38
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@lh-ak lh-ak Apr 30, 2026

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do I miss something here or is this basically enough if we expect base url in adapter.url

Suggested change
local current_url = adapter.url or "https://api.githubcopilot.com/chat/completions"
local base_url = current_url:gsub("/chat/completions$", ""):gsub("/responses$", "")
local base_url = adapter.url or "https://api.githubcopilot.com"


if model_opts.endpoint == "responses" then
adapter.url = "https://api.githubcopilot.com/responses"
adapter.url = base_url .. "/responses"

local responses = require("codecompanion.adapters.http.openai_responses")

Expand Down Expand Up @@ -74,7 +77,7 @@ local function handlers(adapter)
return responses.handlers
end

adapter.url = "https://api.githubcopilot.com/chat/completions"
adapter.url = base_url .. "/chat/completions"
return require("codecompanion.adapters.http.openai").handlers
end

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11 changes: 10 additions & 1 deletion lua/codecompanion/adapters/http/copilot/stats.lua
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Expand Up @@ -27,8 +27,17 @@ local function get_statistics()

local oauth_token = token.fetch({ force = true }).oauth_token

local host = vim.env.GH_HOST or "github.com"
local endpoint
if host == "github.com" then
endpoint = "https://api.github.com/copilot_internal/v2/token"
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@lh-ak lh-ak Apr 30, 2026

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Suggested change
endpoint = "https://api.github.com/copilot_internal/v2/token"
endpoint = "https://api.github.com/copilot_internal/user"

this seems to be a copy paste error, the path was "/copilot_internal/user" not "*/token" it's for stats not to request a token.

else
-- GitHub Enterprise usually puts the API under /api/v3
endpoint = string.format("https://%s/api/v3/copilot_internal/v2/token", host)
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@lh-ak lh-ak Apr 30, 2026

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Suggested change
endpoint = string.format("https://%s/api/v3/copilot_internal/v2/token", host)
endpoint = string.format("https://%s/api/v3/copilot_internal/user", host)

end

local ok, response = pcall(function()
return Curl.get("https://api.github.com/copilot_internal/user", {
return Curl.get(endpoint, {
sync = true,
headers = {
Authorization = "Bearer " .. oauth_token,
Expand Down
13 changes: 11 additions & 2 deletions lua/codecompanion/adapters/http/copilot/token.lua
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Expand Up @@ -104,7 +104,7 @@ local function get_oauth_token()

userdata = vim.json.decode(userdata)
for key, value in pairs(userdata) do
if string.find(key, "github.com") then
if string.find(key, vim.env.GH_HOST or "github.com") then
return value.oauth_token
end
end
Expand Down Expand Up @@ -136,8 +136,17 @@ local function get_copilot_token()
_token_fetch_in_progress = true
log:trace("Authorizing GitHub Copilot token")

local host = vim.env.GH_HOST or "github.com"
local endpoint
if host == "github.com" then
endpoint = "https://api.github.com/copilot_internal/v2/token"
else
-- GitHub Enterprise usually puts the API under /api/v3
endpoint = string.format("https://%s/api/v3/copilot_internal/v2/token", host)
end

local ok, request = pcall(function()
return Curl.get("https://api.github.com/copilot_internal/v2/token", {
return Curl.get(endpoint, {
headers = {
Authorization = "Bearer " .. (M._oauth_token or ""),
Accept = "application/json",
Expand Down