Lua

OpenAI (ChatGPT) Create Image

See more OpenAI ChatGPT Examples

Show how to send a POST to create an image. Gets the JSON response with URLs and then downloads images to files. Lua

local chilkat = require("chilkat")

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

local http = chilkat.Http.new()

-- Implements the following CURL command:

-- curl https://api.openai.com/v1/images/generations \
--   -H "Content-Type: application/json" \
--   -H "Authorization: Bearer $OPENAI_API_KEY" \
--   -d '{
--     "prompt": "A cute baby sea otter",
--     "n": 2,
--     "size": "1024x1024"
--   }'

-- Use the following online tool to generate HTTP code from a CURL command
-- Convert a cURL Command to HTTP Source Code

-- Use this online tool to generate code from sample JSON:
-- Generate Code to Create JSON

-- The following JSON is sent in the request body.

-- {
--   "prompt": "A cute baby sea otter",
--   "n": 2,
--   "size": "1024x1024"
-- }

local json = chilkat.JsonObject.new()
json:update_string("prompt", "A cute baby sea otter")
json:update_int("n", 2)
json:update_string("size", "1024x1024")

-- Adds the "Authorization: Bearer $OPENAI_API_KEY" header.
-- This is NOT a real key.  Change the "sk-vi...." to your own key.
http.auth_token = "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"

local resp = chilkat.HttpResponse.new()
local success = http:http_json("POST", "https://api.openai.com/v1/images/generations", json, "application/json", resp)
if not success then
    print(http.last_error_text)
    return
end

local sbResponseBody = chilkat.StringBuilder.new()
resp:get_body_sb(sbResponseBody)

local jResp = chilkat.JsonObject.new()
jResp:load_sb(sbResponseBody)
jResp.emit_compact = false

print("Response Body:")
print(jResp:emit())

local respStatusCode = resp.status_code
print("Response Status Code = " .. respStatusCode)
if respStatusCode >= 400 then
    print("Response Header:")
    print(resp.header)
    print("Failed.")
    return
end

-- Sample JSON response:
-- (Sample code for parsing the JSON response is shown below)

-- {
--   "created": 1589478378,
--   "data": [
--     {
--       "url": "https://..."
--     },
--     {
--       "url": "https://..."
--     }
--   ]
-- }

-- Sample code for parsing the JSON response...
-- Use the following online tool to generate parsing code from sample JSON:
-- Generate Parsing Code from JSON

local url = ""
local sbLocalFilePath = chilkat.StringBuilder.new()

-- Download each image..
http:clear_headers()
http.auth_token = ""

local created = jResp:int_of("created")
local i = 0
local count_i = jResp:size_of_array("data")
while i < count_i do
    jResp.i = i
    url = jResp:string_of("data[i].url")

    sbLocalFilePath:set_string("c:/aaworkarea/image_")
    sbLocalFilePath:append_int(i + 1)
    sbLocalFilePath:append(".png")

    success = http:download(url, sbLocalFilePath:get_as_string())
    if not success then
        print(http.last_error_text)
        return
    end

    i = i + 1
end