databricks-isv-rest-api

Databricks REST API authentication for ISV integrations uses standardized patterns for PAT, OAuth M2M, and U2M flows. These patterns provide concrete code samples for acquiring tokens and setting base headers to securely access Databricks endpoints.

OAuth M2M (machine-to-machine) uses client credentials for automated service-to-service authentication, while U2M (user-to-machine) requires browser-based sign-ins with PKCE support for interactive user authentication. Both flows handle token exchange to access Databricks REST endpoints.

PKCE support is needed for Databricks OAuth authentication during browser-based U2M sign-in flows. It protects authorization code exchanges by requiring a code verifier and challenge, securing interactive user authentication for REST API access.

Yes, Databricks REST API authentication guidance includes cross-flow validation and troubleshooting with concrete code samples, environment guidance, and common errors. It covers token acquisition, base headers, and validation for Unity Catalog tests and SQL statement execution.

Yes, PAT is one of the supported authentication patterns for Databricks REST API integrations alongside OAuth M2M and U2M. PAT provides a straightforward token-based method for securing access to Databricks endpoints across different languages.

OAuth token exchange failures when calling Databricks REST APIs often stem from incorrect base headers, missing PKCE parameters, or environment misconfigurations. The authentication guidance provides deterministic tests and troubleshooting samples to resolve these common errors.