(Visual FoxPro) IBM Cloud - Text to Speech - Synthesize Audio (POST)

Synthesizes text to audio that is spoken in the specified voice. Uses a POST which allows for more text to be synthesized.

Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://cloud.ibm.com/apidocs/text-to-speech#synthesize-audio

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL lnSuccess
LOCAL loHttp
LOCAL lcMyBaseUrl
LOCAL loSbUrl
LOCAL loJson
LOCAL lcUrl
LOCAL loResp
LOCAL lnRespStatusCode

lnSuccess = 0

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

loHttp = CreateObject('Chilkat.Http')

loHttp.Login = "apikey"
loHttp.Password = "my_apikey"
loHttp.BasicAuth = 1

* Send the following request:

* curl -X POST -u "apikey:{apikey}" 
*    --header "Content-Type: application/json" 
*    --header "Accept: audio/wav" 
*    --data "{\"text\":\"When life gives you lemons, order the lobster tail.\"}" 
*    --output lobster.wav "{url}/v1/synthesize?voice=en-US_AllisonV3Voice"

* Use your base URL shown in the credentials web page (below your apikey)
lcMyBaseUrl = "https://api.us-south.text-to-speech.watson.cloud.ibm.com/instances/31941e96-7b89-4d56-8993-9cd8f18ec2d8"

loSbUrl = CreateObject('Chilkat.StringBuilder')
loSbUrl.Append(lcMyBaseUrl)
loSbUrl.Append("/v1/synthesize?voice=en-US_AllisonV3Voice")

loHttp.Accept = "audio/wav"

loJson = CreateObject('Chilkat.JsonObject')
loJson.UpdateString("text","When life gives you lemons, order the lobster tail.")

lcUrl = loSbUrl.GetAsString()
loResp = CreateObject('Chilkat.HttpResponse')
lnSuccess = loHttp.HttpJson("POST",lcUrl,loJson,"application/json",loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loSbUrl
    RELEASE loJson
    RELEASE loResp
    CANCEL
ENDIF

lnRespStatusCode = loResp.StatusCode
? "response status code = " + STR(lnRespStatusCode)

IF (lnRespStatusCode = 200) THEN
    lnSuccess = loResp.SaveBodyBinary("qa_output/lobster.wav")
    ? "Success!"
ELSE
    ? loResp.BodyStr
ENDIF

RELEASE loHttp
RELEASE loSbUrl
RELEASE loJson
RELEASE loResp