GetCustomerCollectionsIdAsync returns an empty string

Question

GetCustomerCollectionsIdAsync returns an empty string

vexakul 1

Well, I'm trying to get user token with StoreContext.GetCustomerCollectionsIdAsync to pass to my service. I'm passing in the collections api token I get in my service and the string "user" as the second arg (just some non-empty string). I've associated client ID with the app. I'm running out of ideas how to fix this. There is no any debug info available, just an empty string.

Anonymous

2022-01-28T05:46:54.407+00:00

What is the API that you are using in your service?
vexakul 1 Reputation point

2022-01-28T08:19:05.543+00:00

Windows.Services.Store api
Anonymous

2022-01-31T06:57:29.15+00:00

Well, which API returns an empty string. Is it the StoreContext.GetCustomerCollectionsIdAsync? Or another API that you are using in your service?
vexakul 1 Reputation point

2022-01-31T07:00:30.08+00:00

This method
Anonymous

2022-01-31T09:20:45.337+00:00

There are two parameters in this method. Could you please double check the Azure Active Directory access token and the publisherUserId? Is the Azure Active Directory access token expires? Have you tried to refresh it? Is the publisherUserId correct?
vexakul 1 Reputation point

2022-01-31T17:18:58.953+00:00

I've tried to regenerate the token. It should be valid. I'm passing in the string "user" as the publisherUserId as I wrote above. I have no idea what's wrong. Am I correct that calling this method makes sense only after the purchase when a user has signed in? (this is what I'm doing).
vexakul 1 Reputation point

2022-01-31T18:01:33.797+00:00

Are there any configuration steps besides setting the client ID in the app settings for puchase and collections on the partners web-site?
Anonymous

2022-02-01T06:10:54.51+00:00

Yes, you can't pass just a string "user" as the parameter, you need to pass real user ID as the parameter
Anonymous

2022-02-01T06:12:54.047+00:00

This document- Manage product entitlements from a service contains all the necessary steps about the whole process. Is this what you are following?
vexakul 1 Reputation point

2022-02-01T11:01:18.243+00:00

What should it be? Could you please explain what this is about?

An anonymous ID that identifies the current user in the context of services that you manage as the publisher of the current app. If you maintain user IDs in the context of your services, you can use this parameter to associate your ID for the current user with the new Microsoft Store ID key (the user ID will be embedded in the key). Otherwise, if you don't need to associate a user ID with the Microsoft Store ID key, you can pass any string value.
Anonymous

2022-02-02T03:23:08.187+00:00

publisherUserId is identify user on your server, such as: serial id or email account. Like xxx@Microsoft Corporation .com.
vexakul 1 Reputation point

2022-02-02T09:16:30.863+00:00

I don't quite get it. Then it can be any non-empty string, including "user" as written in the documentation? I don't manage users, I just need their token.
Anonymous

2022-02-03T08:53:10.917+00:00

You are not getting the token when passing the "user" string, right? It returns the empty string so there is no error response to locate what is the root cause for this. Then please try to use serial id or email account to see if using this parameter, the GetCustomerCollectionsIdAsync could return correct values.
vexakul 1 Reputation point

2022-02-03T11:14:48.643+00:00

I've just tried what you proposed with no luck. The only cause of the problem I see now might be the permissions and settings of the account I use. I have a developer account in partner center and I signed in with the same account in azure. What do you think?

1 answer

Your answer

Anonymous

2022-01-28T05:46:54.407+00:00

What is the API that you are using in your service?
vexakul 1 Reputation point

2022-01-28T08:19:05.543+00:00

Windows.Services.Store api
Anonymous

2022-01-31T06:57:29.15+00:00

Well, which API returns an empty string. Is it the StoreContext.GetCustomerCollectionsIdAsync? Or another API that you are using in your service?
vexakul 1 Reputation point

2022-01-31T07:00:30.08+00:00

This method
Anonymous

2022-01-31T09:20:45.337+00:00

There are two parameters in this method. Could you please double check the Azure Active Directory access token and the publisherUserId? Is the Azure Active Directory access token expires? Have you tried to refresh it? Is the publisherUserId correct?
vexakul 1 Reputation point

2022-01-31T17:18:58.953+00:00

I've tried to regenerate the token. It should be valid. I'm passing in the string "user" as the publisherUserId as I wrote above. I have no idea what's wrong. Am I correct that calling this method makes sense only after the purchase when a user has signed in? (this is what I'm doing).
vexakul 1 Reputation point

2022-01-31T18:01:33.797+00:00

Are there any configuration steps besides setting the client ID in the app settings for puchase and collections on the partners web-site?
Anonymous

2022-02-01T06:10:54.51+00:00

Yes, you can't pass just a string "user" as the parameter, you need to pass real user ID as the parameter
Anonymous

2022-02-01T06:12:54.047+00:00

This document- Manage product entitlements from a service contains all the necessary steps about the whole process. Is this what you are following?
vexakul 1 Reputation point

2022-02-01T11:01:18.243+00:00

What should it be? Could you please explain what this is about?

An anonymous ID that identifies the current user in the context of services that you manage as the publisher of the current app. If you maintain user IDs in the context of your services, you can use this parameter to associate your ID for the current user with the new Microsoft Store ID key (the user ID will be embedded in the key). Otherwise, if you don't need to associate a user ID with the Microsoft Store ID key, you can pass any string value.
Anonymous

2022-02-02T03:23:08.187+00:00

publisherUserId is identify user on your server, such as: serial id or email account. Like xxx@Microsoft Corporation .com.
vexakul 1 Reputation point

2022-02-02T09:16:30.863+00:00

I don't quite get it. Then it can be any non-empty string, including "user" as written in the documentation? I don't manage users, I just need their token.
Anonymous

2022-02-03T08:53:10.917+00:00

You are not getting the token when passing the "user" string, right? It returns the empty string so there is no error response to locate what is the root cause for this. Then please try to use serial id or email account to see if using this parameter, the GetCustomerCollectionsIdAsync could return correct values.
vexakul 1 Reputation point

2022-02-03T11:14:48.643+00:00

I've just tried what you proposed with no luck. The only cause of the problem I see now might be the permissions and settings of the account I use. I have a developer account in partner center and I signed in with the same account in azure. What do you think?

Answer 1

vexakul 1

Well after some time debugging this a valid thought had finally come to my mind, which was "may be the code I blindly trust is wrong?". And the answer was "yes". I relied on code from Microsoft-Store-Services sample. I removed v2.0 at https://github.com/microsoft/Microsoft-Store-Services/blob/main/Microsoft.StoreServices/Microsoft.StoreServices/Authentication/AccessTokenProvider.cs#L110 and changed 'scope' to 'resource' also removing './default' after audience and it worked.

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GetCustomerCollectionsIdAsync returns an empty string

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