VB.NET

VoiceBase -- Upload a Media File with a JSON Configuration

See more VoiceBase Examples

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

Dim success As Boolean = False

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

' Insert your Bearer token here:
Dim accessToken As String = "VOICEBASE_TOKEN"

Dim http As New Chilkat.Http

Dim req As New Chilkat.HttpRequest
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>
Dim sbAuth As New Chilkat.StringBuilder
sbAuth.Append("Bearer ")
sbAuth.Append(accessToken)
req.AddHeader("Authorization",sbAuth.GetAsString())

success = req.AddFileForUpload2("media","qa_data/wav/msg_123_abc.wav","audio/x-wav")
If (success = False) Then
    Debug.WriteLine(req.LastErrorText)
    Exit Sub
End If


' 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.
Dim json As New Chilkat.JsonObject
json.UpdateString("configuration.publish.callbacks[0].url","https://www.chilkatsoft.com/dss/update_vm_transcription.asp")
json.UpdateString("configuration.publish.callbacks[0].method","POST")
json.UpdateString("configuration.publish.callbacks[0].include[0]","transcripts")
json.UpdateString("configuration.publish.callbacks[0].include[1]","keywords")
json.UpdateString("configuration.publish.callbacks[0].include[2]","topics")
json.UpdateString("configuration.publish.callbacks[0].include[3]","metadata")

Dim jConfig As New Chilkat.JsonObject
json.ObjectOf2("configuration",jConfig)

Dim jKeywords As New Chilkat.JsonObject
jConfig.AppendObject2("keywords",jKeywords)

Dim jGroups As New Chilkat.JsonArray
jKeywords.AppendArray2("groups",jGroups)

' Add the configuration JSON to the upload.
req.AddParam("configuration",json.Emit())

' Do the upload..
Dim resp As New Chilkat.HttpResponse
success = http.HttpSReq("apis.voicebase.com",443,True,req,resp)
If (success = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


' Examine the response status code and body.
Debug.WriteLine("Response status code = " & resp.StatusCode)

' The response should be JSON, even if an error.
json.Load(resp.BodyStr)
json.EmitCompact = False

Debug.WriteLine(json.Emit())

' A successful response will have a status code = 200
If (resp.StatusCode <> 200) Then
    Debug.WriteLine("Failed.")
Else
    Debug.WriteLine("mediaId: " & json.StringOf("mediaId"))
    Debug.WriteLine("href: " & json.StringOf("_links.self.href"))
    Debug.WriteLine("status: " & json.StringOf("status"))
    Debug.WriteLine("Success.")
End If


' 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": {}
'