(PureBasic) VoiceBase -- Retrieve JSON Transcript

Retrieves a JSON transcript for a media file.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkHttp.pb"
IncludeFile "CkStringBuilder.pb"
IncludeFile "CkJsonObject.pb"

Procedure ChilkatExample()

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

    ; Insert your Bearer token here:
    accessToken.s = "VOICEBASE_TOKEN"

    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Add the access (bearer) token to the request, which is a header
    ; having the following format:
    ; Authorization: Bearer <userAccessToken>
    sbAuth.i = CkStringBuilder::ckCreate()
    If sbAuth.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkStringBuilder::ckAppend(sbAuth,"Bearer ")
    CkStringBuilder::ckAppend(sbAuth,accessToken)
    CkHttp::ckSetRequestHeader(http,"Authorization",CkStringBuilder::ckGetAsString(sbAuth))

    sbUrl.i = CkStringBuilder::ckCreate()
    If sbUrl.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkStringBuilder::ckAppend(sbUrl,"https://apis.voicebase.com/v2-beta/media/$MEDIA_ID/transcripts/latest")
    replaceCount.i = CkStringBuilder::ckReplace(sbUrl,"$MEDIA_ID","f9b9bb88-d52c-4960-bcef-d516a9f85594")

    strJson.s = CkHttp::ckQuickGetStr(http,CkStringBuilder::ckGetAsString(sbUrl))
    If CkHttp::ckLastMethodSuccess(http) <> 1
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkStringBuilder::ckDispose(sbAuth)
        CkStringBuilder::ckDispose(sbUrl)
        ProcedureReturn
    EndIf

    ; The response should be JSON, even if an error.
    json.i = CkJsonObject::ckCreate()
    If json.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckLoad(json,strJson)
    CkJsonObject::setCkEmitCompact(json, 0)

    Debug "Response status code = " + Str(CkHttp::ckLastStatus(http))

    If CkHttp::ckLastStatus(http) <> 200
        Debug CkJsonObject::ckEmit(json)
        Debug "Failed"
        CkHttp::ckDispose(http)
        CkStringBuilder::ckDispose(sbAuth)
        CkStringBuilder::ckDispose(sbUrl)
        CkJsonObject::ckDispose(json)
        ProcedureReturn
    EndIf

    ; See the sample JSON response below..

    ; Iterate over the words..
    numWords.i = CkJsonObject::ckSizeOfArray(json,"transcripts.latest.words")
    i.i = 0
    While i < numWords
        CkJsonObject::setCkI(json, i)
        Debug CkJsonObject::ckStringOf(json,"transcripts.latest.words[i].w")
        i = i + 1
    Wend
    Debug "Success."

    ; A sample JSON response:

    ; { 
    ;   "_links": { 
    ;     "self": { 
    ;       "href": "/v2-beta/media/f9b9bb88-d52c-4960-bcef-d516a9f85594/transcripts/latest"
    ;     }
    ;   },
    ;   "transcripts": { 
    ;     "latest": { 
    ;       "revision": "b25e81dc-ae3e-4f9d-8008-1d56a283c17f",
    ;       "engine": "standard",
    ;       "confidence": 2.196210728898151,
    ;       "words": [
    ;         { 
    ;           "p": 0,
    ;           "s": 830,
    ;           "c": 0.14,
    ;           "e": 870,
    ;           "w": "You"
    ;         },
    ;         { 
    ;           "p": 1,
    ;           "s": 1860,
    ;           "c": 0.432,
    ;           "e": 1920,
    ;           "w": "know"
    ;         },
    ;         { 
    ;           "p": 2,
    ;           "s": 1930,
    ;           "c": 0.288,
    ;           "e": 2250,
    ;           "w": "that's"
    ;         },
    ;         { 
    ;           "p": 3,
    ;           "s": 2250,
    ;           "c": 0.923,
    ;           "e": 2300,
    ;           "w": "a"
    ;         },
    ; ...


    CkHttp::ckDispose(http)
    CkStringBuilder::ckDispose(sbAuth)
    CkStringBuilder::ckDispose(sbUrl)
    CkJsonObject::ckDispose(json)


    ProcedureReturn
EndProcedure