Confusion about using APIs to extract msn contacts

I am confused about using APIs to extract msn contacts. I am confused about using APIs to extract msn contacts according to official msn tokens.
I follow msn official http://connect.windowslive.cn/developer/development.html#s3
Step by step, register the client_id,

Why is the last extracted contact only the contact name, but the address is emai_hashes, which is not recognizable?

The extracted data is as follows:

{ "data": [ { "id": "contact.125d7e31000000000000000000000000", "first_name": "wang", "last_name": "nan", "name": "wang nan", "gender": null, "is_friend": false, "is_favorite": false, "user_id": null, "email_hashes": [ "03387e3c35e6e911080e3b356147576a415089a71f8c19f588b86d8920b21415" ], "updated_time": "2012-07-03T15:25:40+0000" }, { "id": "contact.ea57daaa000000000000000000000000", "first_name": "li", "last_name": "yong", "name": "li yong", "gender": null, "is_friend": false, "is_favorite": false, "user_id": null, "email_hashes": [ "90dfd9299c66e18ec2984f444381920064045de0c6d8835e588c5c6e4e5a4515" ], "updated_time": "2012-07-03T15:25:40+0000" } ] }

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This is of course a question about permission usage.
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Yes, you are taking a closer look at his instructions. maybe there are other ways.
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Reference:

Reference: Didn't he quite understand it?
3. obtain the MSN friend list
When the user logs on and allows wl. when the basic permission range is available and the access_token is available, you can request the user's contact list. the e-mail address in the obtained contact list is the hash address.


Is it true that email_hashes can only be extracted and cannot be extracted to plaintext emails?

I did it a year ago.
Clearly tell you, yes! The plaintext email address is not provided...
If you want to get an email, this interface provided by msn is useless at all. you should try another method.