The old Watson Conversation API (21st Apr 2017 version) seems to have stopped working. Gives me the 401 Unauthorized error

问题

My application was using the Watson Conversation API (21st Apr 2017 version) imported as a maven dependency:

<dependency>
    <groupId>com.ibm.watson.developer_cloud</groupId>
    <artifactId>conversation</artifactId>
    <version>3.9.1</version>
</dependency>

I've checked the credentials (username and password) for correctness. However, it is still giving me the following error (I've replaced the actual conversation workspace id with the placeholder ACTUAL_WORKSPACE_ID in URLs):

Feb 12, 2020 6:14:40 PM okhttp3.internal.platform.Platform log INFO: <-- 401 Unauthorized https://gateway.watsonplatform.net/conversation/api/v1/workspaces/ACTUAL_WORKSPACE_ID/message?version=2017-04-21 (342ms, 37-byte body) Feb 12, 2020 6:14:40 PM com.ibm.watson.developer_cloud.service.WatsonService processServiceCall SEVERE: POST https://gateway.watsonplatform.net/conversation/api/v1/workspaces/ACTUAL_WORKSPACE_ID/message?version=2017-04-21, status: 401, error: Unauthorized Exception in thread "main" com.ibm.watson.developer_cloud.service.exception.UnauthorizedException: Unauthorized: Access is denied due to invalid credentials. Tip: Did you set the Endpoint? at com.ibm.watson.developer_cloud.service.WatsonService.processServiceCall(WatsonService.java:410)

I observed that the newer version of APIs is available and the IAM & Resource groups have been introduced in the IBM Cloud. Is this issue a result of these changes? Can we not use the older API any more?

回答1:

IBM Cloud is switching off any services that have not been migrated to a resource group. The Watson services were part of the first batch affected. You will need to migrate your instance to IAM, then use the generated IAM key for authentication.

来源：https://stackoverflow.com/questions/60189034/the-old-watson-conversation-api-21st-apr-2017-version-seems-to-have-stopped-wo