(Tcl) Amazon Translate Text

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

Chilkat Tcl Extension Downloads Chilkat Tcl Extension Downloads

load ./chilkat.dll

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

set rest [new_CkRest]

set authAws [new_CkAuthAws]

CkAuthAws_put_AccessKey $authAws "AWS_ACCESS_KEY"
CkAuthAws_put_SecretKey $authAws "AWS_SECRET_KEY"
CkAuthAws_put_Region $authAws "us-west-2"
CkAuthAws_put_ServiceName $authAws "translate"
CkRest_SetAuthAws $rest $authAws

# URL: https://translate.us-west-2.amazonaws.com/
set bTls 1
set port 443
set bAutoReconnect 1
set success [CkRest_Connect $rest "translate.us-west-2.amazonaws.com" $port $bTls $bAutoReconnect]
if {$success != 1} then {
    puts "ConnectFailReason: [CkRest_get_ConnectFailReason $rest]"
    puts [CkRest_lastErrorText $rest]
    delete_CkRest $rest
    delete_CkAuthAws $authAws
    exit
}

# Translate text from English to German
set json [new_CkJsonObject]

CkJsonObject_UpdateString $json "SourceLanguageCode" "en"
CkJsonObject_UpdateString $json "TargetLanguageCode" "de"
CkJsonObject_UpdateString $json "Text" "This is the text to be translated"

CkRest_AddHeader $rest "Content-Type" "application/x-amz-json-1.1"
CkRest_AddHeader $rest "X-Amz-Target" "AWSShineFrontendService_20170701.TranslateText"

set sbRequestBody [new_CkStringBuilder]

CkJsonObject_EmitSb $json $sbRequestBody
set sbResponseBody [new_CkStringBuilder]

set success [CkRest_FullRequestSb $rest "POST" "/" $sbRequestBody $sbResponseBody]
if {$success != 1} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkRest $rest
    delete_CkAuthAws $authAws
    delete_CkJsonObject $json
    delete_CkStringBuilder $sbRequestBody
    delete_CkStringBuilder $sbResponseBody
    exit
}

set respStatusCode [CkRest_get_ResponseStatusCode $rest]
if {$respStatusCode >= 400} then {
    puts "Response Status Code = $respStatusCode"
    puts "Response Header:"
    puts [CkRest_responseHeader $rest]
    puts "Response Body:"
    puts [CkStringBuilder_getAsString $sbResponseBody]
    delete_CkRest $rest
    delete_CkAuthAws $authAws
    delete_CkJsonObject $json
    delete_CkStringBuilder $sbRequestBody
    delete_CkStringBuilder $sbResponseBody
    exit
}

set jsonResponse [new_CkJsonObject]

CkJsonObject_LoadSb $jsonResponse $sbResponseBody
CkJsonObject_put_EmitCompact $jsonResponse 0

puts [CkJsonObject_emit $jsonResponse]

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

puts [CkJsonObject_stringOf $jsonResponse TranslatedText]

delete_CkRest $rest
delete_CkAuthAws $authAws
delete_CkJsonObject $json
delete_CkStringBuilder $sbRequestBody
delete_CkStringBuilder $sbResponseBody
delete_CkJsonObject $jsonResponse