(Swift 3,4,5...) VoiceBase -- Upload a Media File with a JSON Configuration

This example uploads a media file and also provides a configuration file.

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func chilkatTest() {
    // This example assumes the Chilkat HTTP API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // Insert your Bearer token here:
    var accessToken: String? = "VOICEBASE_TOKEN"

    let http = CkoHttp()!

    let req = CkoHttpRequest()!
    req.httpVerb = "POST"
    req.path = "/v2-beta/media"
    req.contentType = "multipart/form-data"

    // Add the access (bearer) token to the request, which is a header
    // having the following format:
    // Authorization: Bearer <userAccessToken>
    let sbAuth = CkoStringBuilder()!
    sbAuth.append("Bearer ")
    sbAuth.append(accessToken)
    req.addHeader("Authorization", value: sbAuth.getAsString())

    var success: Bool = req.addFile(forUpload2: "media", path: "qa_data/wav/msg_123_abc.wav", contentType: "audio/x-wav")
    if success != true {
        print("\(req.lastErrorText!)")
        return
    }

    // This is the JSON of the configuration to be added as a parameter to the upload:
    // (Obviously, if you want a callback, you would use a URL that goes to your own web server..)

    // 	{ 
    // 	   "configuration":{ 
    // 	      "publish":{ 
    // 	         "callbacks":[
    // 	            { 
    // 	               "url":"https://www.chilkatsoft.com/dss/update_vm_transcription.asp",
    // 	               "method":"POST",
    // 	               "include":[
    // 	                  "transcripts",
    // 	                  "keywords",
    // 	                  "topics",
    // 	                  "metadata"
    // 	               ]
    // 	            }
    // 	         ]
    // 	      },
    // 	      "keywords":{ 
    // 	         "groups":[]
    // 	      }
    // 	   }
    // 	}

    // This code produces the above JSON.
    let json = CkoJsonObject()!
    json.update("configuration.publish.callbacks[0].url", value: "https://www.chilkatsoft.com/dss/update_vm_transcription.asp")
    json.update("configuration.publish.callbacks[0].method", value: "POST")
    json.update("configuration.publish.callbacks[0].include[0]", value: "transcripts")
    json.update("configuration.publish.callbacks[0].include[1]", value: "keywords")
    json.update("configuration.publish.callbacks[0].include[2]", value: "topics")
    json.update("configuration.publish.callbacks[0].include[3]", value: "metadata")
    var jConfig: CkoJsonObject? = json.object(of: "configuration")
    var jKeywords: CkoJsonObject? = jConfig!.append("keywords")
    var jGroups: CkoJsonArray? = jKeywords!.appendArray("groups")
    jGroups = nil
    jKeywords = nil
    jConfig = nil

    // Add the configuration JSON to the upload.
    req.addParam("configuration", value: json.emit())

    // Do the upload..
    var resp: CkoHttpResponse? = http.synchronousRequest("apis.voicebase.com", port: 443, ssl: true, req: req)
    if http.lastMethodSuccess != true {
        print("\(http.lastErrorText!)")
        return
    }

    // Examine the response status code and body.
    print("Response status code = \(resp!.statusCode.intValue)")

    // The response should be JSON, even if an error.
    json.load(resp!.bodyStr)
    json.emitCompact = false

    print("\(json.emit()!)")

    // A successful response will have a status code = 200
    if resp!.statusCode.intValue != 200 {
        print("Failed.")
    }
    else {
        print("mediaId: \(json.string(of: "mediaId")!)")
        print("href: \(json.string(of: "_links.self.href")!)")
        print("status: \(json.string(of: "status")!)")
        print("Success.")
    }

    resp = nil

    // Here is an example of a successful response:

    // 	{ 
    // 	  "_links": { 
    // 	    "self": { 
    // 	      "href": "/v2-beta/media/856a1e85-c847-4c3c-b7a4-6cf15cd51db4"
    // 	    }
    // 	  },
    // 	  "mediaId": "856a1e85-c847-4c3c-b7a4-6cf15cd51db4",
    // 	  "status": "accepted",
    // 	  "metadata": {}
    // 	

}