Google Photos REST API "pageSize" and "pageToken" parameters causing 400 Bad Request - google-photos

Question

I'm trying to get all media items in my Google Photos library and referred following documentation link.
https://developers.google.com/photos/library/guides/list
Documentation says client can request pages using pageSize and provided following example.
GET https://photoslibrary.googleapis.com/v1/mediaItems
Content-type: application/json
Authorization: Bearer OAUTH2_TOKEN
{
"pageSize":"100",
}
i think the comma after 100 is a documentation error and i removed it from request, but whenever i add pageSize (or pageToken) parameter, server always return with 400 Bad Request <p>Your client has issued a malformed or illegal request.<ins>That’s all we know.</ins>
Here are some example REST API calls i tried
GET /v1/mediaItems HTTP/1.1
Host: photoslibrary.googleapis.com
Content-Type: application/json
Authorization: Bearer xxx
{
"pageSize":10
}
GET /v1/mediaItems HTTP/1.1
Host: photoslibrary.googleapis.com
Content-Type: application/json
Authorization: Bearer xxx
{
"pageSize":"10"
}
GET /v1/mediaItems HTTP/1.1
Host: photoslibrary.googleapis.com
Content-Type: application/json
Authorization: Bearer xxx
{
"pageToken":"blha blha"
}
Please note that whenever i removed the json from request body, it start returning 200 OK with predefined pageSize. but i would like to control the pageSize and request next pages using pageToken.
Thanks for any guidance on this matter.

Answer 1

I just started looking at this too. Those parameters shouldn't be passed in the body. They are query parameters. So something like this:
https://photoslibrary.googleapis.com/v1/mediaItems?pageSize=100
That worked for me at least. Check out further documentation at https://developers.google.com/photos/library/reference/rest/v1/mediaItems/list to review information about the query parameters.