Lua Requires Chilkat v11.0.0+

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. Lua

local chilkat = require("chilkat")

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

-- Insert your Bearer token here:
local accessToken = "VOICEBASE_TOKEN"

local http = chilkat.Http.new()

local req = chilkat.HttpRequest.new()
req.http_verb = "POST"
req.path = "/v2-beta/media"
req.content_type = "multipart/form-data"

-- Add the access (bearer) token to the request, which is a header
-- having the following format:
-- Authorization: Bearer <userAccessToken>
local sbAuth = chilkat.StringBuilder.new()
sbAuth:append("Bearer ")
sbAuth:append(accessToken)
req:add_header("Authorization", sbAuth:get_as_string())

local success = req:add_file_for_upload2("media", "qa_data/wav/msg_123_abc.wav", "audio/x-wav")
if not success then
    print(req.last_error_text)
    return
end

-- 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.
local json = chilkat.JsonObject.new()
json:update_string("configuration.publish.callbacks[0].url", "https://www.chilkatsoft.com/dss/update_vm_transcription.asp")
json:update_string("configuration.publish.callbacks[0].method", "POST")
json:update_string("configuration.publish.callbacks[0].include[0]", "transcripts")
json:update_string("configuration.publish.callbacks[0].include[1]", "keywords")
json:update_string("configuration.publish.callbacks[0].include[2]", "topics")
json:update_string("configuration.publish.callbacks[0].include[3]", "metadata")

local jConfig = chilkat.JsonObject.new()
json:object_of2("configuration", jConfig)

local jKeywords = chilkat.JsonObject.new()
jConfig:append_object2("keywords", jKeywords)

local jGroups = chilkat.JsonArray.new()
jKeywords:append_array2("groups", jGroups)

-- Add the configuration JSON to the upload.
req:add_param("configuration", json:emit())

-- Do the upload..
local resp = chilkat.HttpResponse.new()
success = http:http_sreq("apis.voicebase.com", 443, true, req, resp)
if not success then
    print(http.last_error_text)
    return
end

-- Examine the response status code and body.
print("Response status code = " .. resp.status_code)

-- The response should be JSON, even if an error.
json:load(resp.body_str)
json.emit_compact = false

print(json:emit())

-- A successful response will have a status code = 200
if resp.status_code ~= 200 then
    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.")
end

-- 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": {}
--     }