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To access the PSD2 APIs, the TPP has to first get the consent from the PSU. 3-legged OAuth is used for this. When the PSU logs into the TPP app, select the bank and the TPP redirects the user to the Bank's login page. The PSU provides valid credentials. Once the PSU is authenticated, a consent page with all the scopes will be shown. PSU selects the list of scopes that you are willing to take up and provides consent. An Oauth access token gets generated which will be used by TPP to access the PSD2 APIs.
Authorization
Detailed documentation of the API with complete information about the parameters involved, sample requests and responses, and authentication mechanisms used can be viewed in the API Documentation section.
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Overview
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