Lua Requires Chilkat v11.4.0+

Upload a File to an AI Provider (OpenAI, Google, Antropic, X)

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Uploads a file to an AI provider using the provider's File API and returns the id that can later be used to reference the file in an query. This currently works with ChatGPT, Gemini, Claude, and Grok. Lua

local chilkat = require("chilkat")

local ai = chilkat.Ai.new()

-- The provider can be "openai", "google", "claude", "grok", or any AI that supports uploading files for later reference by ID.
ai.provider = "openai"
-- Use your provider's API key.
ai.api_key = "MY_API_KEY"

-- We can upload directly from a file in the filesystem, or from a Chilkat StringBuilder, or from a Chilkat BinData.

-- Some AI providers require a content-type.
-- Also, some AI providers are picky about what content-type's are accepted.
-- Check the AI provider's documentation.
-- "application/json" is generally always acceptable.
-- "text/plain" can be used as a fallback for any text file.
local contentType = "application/json"
local localFilePath = "qa_data/hamlet.json"
local filenameOnServer = "hamlet.json"

-- Upload directly from a file.
local file_id = ai:upload_file(localFilePath, contentType)
if not ai.last_method_success then
    print(ai.last_error_text)
    print("AI File Upload Failed.")
else
    print("File ID: " .. file_id)
    print("File uploaded.")
end

-- Upload from the contents of a StringBuilder
local sb = chilkat.StringBuilder.new()
local success = sb:load_file(localFilePath, "utf-8")
if not success then
    print(sb.last_error_text)
    return
end

file_id = ai:upload_file_sb(sb, filenameOnServer, contentType)
if not ai.last_method_success then
    print(ai.last_error_text)
    print("AI File Upload Failed.")
else
    print("File ID: " .. file_id)
    print("File uploaded.")
end

-- Upload from the contents of a BinData
local bd = chilkat.BinData.new()
success = bd:load_file(localFilePath)
if not success then
    print(bd.last_error_text)
    return
end

file_id = ai:upload_file_bd(bd, filenameOnServer, contentType)
if not ai.last_method_success then
    print(ai.last_error_text)
    print("AI File Upload Failed.")
else
    print("File ID: " .. file_id)
    print("File uploaded.")
end