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README.md

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+# SpareBank 1 API Client
+
+Check the [SpareBank 1 API documentation](https://developer.sparebank1.no/#/)
+on how to set up a client. The following environment variables are needed:
+
+*SB1\_REDIRECT\_URI* - Redirect uri, e.g. http://localhost
+
+*SB1\_HOST* - Hostname of redirect uri, e.g. localhost
+
+*SB1\_PORT* - Port of redirect uri, e.g. 8080
+
+*SB1\_CLIENT\_ID* - ID of personal client, check the SB1 API Documentation
+
+*SB1\_CLIENT\_SECRET* - Secret of personal client, check the SB1 API Documentation
+
+*SB1\_FIN\_INST* - Financial Institution, check the SB1 API Documentation