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Before the app can communicate with the API, create a new API key. The API handles authentication using a signed JSON Web Token (JWT) which is passed in an HTTP header. 
curl -X GET https://api.example.gr4vy.app/transactions \
  -H "authorization: bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIi..."
Using an SDK is recommended. SDKs make the process of generating a token a lot easier and are available in many popular programming languages. This is covered in the next step.

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Create a new API key

To use the API, generate a new API key. Head over to the dashboard and visit the Integrations page. API key dashboard On this page, click the Add API key button and select a name for the key. The name is purely to track what key is for what integration. The downloaded key needs to be stored securely as it is not stored by the system.
Learn more about API keys and JWTs in the in-depth guide on authentication.

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Summary

In this step:
  • Learned about API authentication.
  • Created a new API key for use with the API.
  • Stored this API key in a secure place where the app can access it.