Lua

Create Google Photos Media Item using Upload Token

See more Google Photos Examples

This is the 2nd step in uploading a photo to a Google Photos album. The 1st step is to upload the media data to get an upload token. This step is to use the upload token to add the media item to an album. Lua

local chilkat = require("chilkat")

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

-- Get the previously obtained access token.
-- See Get Google Photos Access Token.

local jsonToken = chilkat.JsonObject.new()
local success = jsonToken:load_file("qa_data/tokens/googlePhotos.json")
if not success then
    print(jsonToken.last_error_text)
    return
end

local http = chilkat.Http.new()

http.auth_token = jsonToken:string_of("access_token")

-- For more information, see Google Photos Upload Media REST API Documentation

-- Build a JSON body that looks like this:
-- {
--   "albumId": "ALBUM_ID",
--   "newMediaItems": [
--     {
--       "description": "ITEM_DESCRIPTION",
--       "simpleMediaItem": {
--         "uploadToken": "UPLOAD_TOKEN"
--       }
--     }
--    , ...
--   ]
-- }

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

-- Build the above JSON:
local json = chilkat.JsonObject.new()
json:update_string("albumId", "ALBUM_ID")
json:update_string("newMediaItems[0].description", "Photo of Penguins")
json:update_string("newMediaItems[0].simpleMediaItem.uploadToken", "UPLOAD_TOKEN")

local resp = chilkat.HttpResponse.new()
success = http:http_json("POST", "https://photoslibrary.googleapis.com/v1/mediaItems:batchCreate", json, "application/json", resp)
if not success then
    print(http.last_error_text)
    return
end

-- Examine the response status code.  Success is indicated by a status code of 200.
print("response status code: " .. resp.status_code)

json:load(resp.body_str)
json.emit_compact = false
print(json:emit())

-- Sample response:

-- {
--   "newMediaItemResults": [
--     {
--       "uploadToken": "CAISiQMASsyg4M/x ... CIKFRzD3l8OpFJMRzMsd00D5w",
--       "status": {
--         "message": "OK"
--       },
--       "mediaItem": {
--         "id": "AKcbugGwtCih2tdl3s1-NMvZFaco3W7XnRwvwtj02J9DJyl6JmrLZDVUFcxQl4AT04LaNrPpsrojeTsDSzOVOF5IgKefD0Y-MQ",
--         "description": "Photo of Penguins",
--         "productUrl": "https://photos.google.com/lr/photo/AKcbugGwtCih2tdl3s1-NMvZFaco3W7XnRwvwtj02J9DJyl6JmrLZDVUFcxQl4AT04LaNrPpsrojeTsDSzOVOF5IgKefD0Y-MQ",
--         "mimeType": "image/jpeg",
--         "mediaMetadata": {
--           "creationTime": "2008-02-18T05:07:31Z",
--           "width": "1024",
--           "height": "768"
--         },
--         "filename": "penguins.jpg"
--       }
--     }
--   ]
-- }

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

local uploadToken = ""
local statusMessage = ""
local mediaItemId = ""
local mediaItemDescription = ""
local mediaItemProductUrl = ""
local mediaItemMimeType = ""
local mediaItemMediaMetadataCreationTime = ""
local mediaItemMediaMetadataWidth = ""
local mediaItemMediaMetadataHeight = ""
local mediaItemFilename = ""

local i = 0
local count_i = json:size_of_array("newMediaItemResults")
while i < count_i do
    json.i = i
    uploadToken = json:string_of("newMediaItemResults[i].uploadToken")
    statusMessage = json:string_of("newMediaItemResults[i].status.message")
    mediaItemId = json:string_of("newMediaItemResults[i].mediaItem.id")
    mediaItemDescription = json:string_of("newMediaItemResults[i].mediaItem.description")
    mediaItemProductUrl = json:string_of("newMediaItemResults[i].mediaItem.productUrl")
    mediaItemMimeType = json:string_of("newMediaItemResults[i].mediaItem.mimeType")
    mediaItemMediaMetadataCreationTime = json:string_of("newMediaItemResults[i].mediaItem.mediaMetadata.creationTime")
    mediaItemMediaMetadataWidth = json:string_of("newMediaItemResults[i].mediaItem.mediaMetadata.width")
    mediaItemMediaMetadataHeight = json:string_of("newMediaItemResults[i].mediaItem.mediaMetadata.height")
    mediaItemFilename = json:string_of("newMediaItemResults[i].mediaItem.filename")
    i = i + 1
end