How to make a localPost with media using GMB API? - google-my-business-api

Question

I am able to make localPost using GMB api.
However, when I add media, it gives me an error.
The error is as following.
{
"error": {
"code": 400,
"message": "Request contains an invalid argument.",
"errors": [
{
"message": "Request contains an invalid argument.",
"domain": "global",
"reason": "badRequest"
}
],
"status": "INVALID_ARGUMENT"
}
}
My source code is as following.
Also, I installed google/apiclient from github and GMB library from here
$mediaItem = new \Google_Service_MyBusiness_MediaItem();
$mediaItem->setSourceUrl("https://example.com/test");
$mediaItem->setMediaFormat('PHOTO');
$media[] = $mediaItem;
$post = new \Google_Service_MyBusiness_LocalPost();
$post->setSummary($summary);
$post->setCallToAction($callToAction);
$post->setMedia($media);
$obj = new \Google_Service_MyBusiness($client);
$obj->accounts_locations_localPosts->create($accountLocation,$post);
If I comment out
"$post->setMedia($media);", I can make localPost.
Do you have a suggestion for this?
Best regards,

Answer 1

I solved myself.
Before:
$mediaItem->setSourceUrl("https://example.com/test");
After:
$mediaItem->setSourceUrl("https://example.com/test.jpg");
The reason why I could not make localPost is that the image extension should be image extension.
Google API dose not allow us to post the image that has not extension.
Cheers.