Lua

Amazon Translate Text

See more AWS Translate Examples

Demonstrates how to use the AWS Translate service to translate text from one language to another. Lua

local chilkat = require("chilkat")

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

local rest = chilkat.Rest.new()

local authAws = chilkat.AuthAws.new()
authAws.access_key = "AWS_ACCESS_KEY"
authAws.secret_key = "AWS_SECRET_KEY"
authAws.region = "us-west-2"
authAws.service_name = "translate"
rest:set_auth_aws(authAws)

-- URL: https://translate.us-west-2.amazonaws.com/
local bTls = true
local port = 443
local bAutoReconnect = true
local success = rest:connect("translate.us-west-2.amazonaws.com", port, bTls, bAutoReconnect)
if not success then
    print("ConnectFailReason: " .. rest.connect_fail_reason)
    print(rest.last_error_text)
    return
end

-- Translate text from English to German
local json = chilkat.JsonObject.new()
json:update_string("SourceLanguageCode", "en")
json:update_string("TargetLanguageCode", "de")
json:update_string("Text", "This is the text to be translated")

rest:add_header("Content-Type", "application/x-amz-json-1.1")
rest:add_header("X-Amz-Target", "AWSShineFrontendService_20170701.TranslateText")

local sbRequestBody = chilkat.StringBuilder.new()
json:emit_sb(sbRequestBody)
local sbResponseBody = chilkat.StringBuilder.new()
success = rest:full_request_sb("POST", "/", sbRequestBody, sbResponseBody)
if not success then
    print(rest.last_error_text)
    return
end

local respStatusCode = rest.response_status_code
if respStatusCode >= 400 then
    print("Response Status Code = " .. respStatusCode)
    print("Response Header:")
    print(rest.response_header)
    print("Response Body:")
    print(sbResponseBody:get_as_string())
    return
end

local jsonResponse = chilkat.JsonObject.new()
jsonResponse:load_sb(sbResponseBody)
jsonResponse.emit_compact = false

print(jsonResponse:emit())

-- {
--   "SourceLanguageCode": "en",
--   "TargetLanguageCode": "de",
--   "TranslatedText": "Dies ist der zu �bersetzende Text"
-- }

print(jsonResponse:string_of("TranslatedText"))