Square API
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OAuth
Square API
Allow your application to gain programmatic access to other seller accounts.
The Square OAuth API lets applications request and obtain permission from a Square account to make API calls on behalf of that account. Applications can request individual permissions so that users do not need to grant full access to their Square accounts.
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Authorize
GET /oauth2/authorize - As part of a URL sent to a seller to authorize permissions for the developer, Authorize displays an authorization page and a list of requested permissions.
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Revoke token
POST /oauth2/revoke - Revokes an access token generated with the OAuth flow.
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Obtain token
POST /oauth2/token - Returns an OAuth access token and a refresh token unless the short_lived parameter is set to true, in which case the endpoint returns only an access token.