Every server comes with this already if you do not have it, download the resource from here.
Use the following export.
exports['screenshot-basic']:requestScreenshotUpload('https://api.fivemerr.com/v1/media/images', 'file', {
headers = {
Authorization = 'YOUR_API_KEY'
},
encoding = 'png'
}, function(data)
local resp = json.decode(data)
local link = (resp and resp.url) or 'invalid_url'
print(link)
end)