Lua

Amazon SP-API Request an LWA access token

See more Amazon SP-API Examples

Request an LWA access token, make a secure HTTP POST to the LWA authentication server (https://api.amazon.com/auth/o2/token) Lua

local chilkat = require("chilkat")

-- This example assumes the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.

local http = chilkat.Http.new()

-- Implements the following CURL command:

-- curl -X POST https://example.com/auth/o2/token \
--   -H "Host: api.amazon.com" \
--   -H "Content-Type: application/x-www-form-urlencoded;charset=UTF-8" \
--   -d "grant_type=refresh_token" \
--   -d "refresh_token=Aztr|..." \
--   -d "client_id=foodev" \
--   -d "client_secret=Y76SDl2F"

-- Use the following online tool to generate HTTP code from a CURL command
-- Convert a cURL Command to HTTP Source Code

local req = chilkat.HttpRequest.new()
req:add_param("grant_type", "refresh_token")
req:add_param("refresh_token", "Aztr|...")
req:add_param("client_id", "foodev")
req:add_param("client_secret", "Y76SDl2F")

req:add_header("Host", "api.amazon.com")

req.http_verb = "POST"
req.content_type = "application/x-www-form-urlencoded"

local resp = chilkat.HttpResponse.new()
local success = http:http_req("https://api.amazon.com/auth/o2/token", req, resp)
if not success then
    print(http.last_error_text)
    return
end

local statusCode = resp.status_code
print("Status Code = " .. statusCode)

local json = chilkat.JsonObject.new()
json:load(resp.body_str)

json.emit_compact = false
print(json:emit())

if statusCode ~= 200 then
    print("Failed.")
    return
end

-- Success returns this JSON:

-- {
--   "access_token": "Atza|...",
--   "refresh_token": "Atzr|...",
--   "token_type": "bearer",
--   "expires_in": 3600
-- }

-- Save the JSON token to a file for use in subsequent calls.
-- (this example is passing a relative file path.  You don't need to save to a file
-- if, for example, you keep the access token in-memory for subsequent use...)
success = json:write_file("qa_data/tokens/sp_api_lwa_token.json")

print("access_token: " .. json:string_of("access_token"))
print("Success.")