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SQL Server

Configure OAuth 2.0 Authentication for REST

See more REST Examples

Demonstrates Rest.SetAuthOAuth2, which associates an OAuth2 provider containing a valid access token so Chilkat adds the bearer token to the Authorization header.

Background. OAuth 2.0 bearer-token authentication attaches the access token to each request. The token is typically obtained separately through an OAuth 2.0 authorization flow before being assigned to the provider.

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SQL Server
-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    DECLARE @rest int
    EXEC @hr = sp_OACreate 'Chilkat.Rest', @rest OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @bTls int
    SELECT @bTls = 1
    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'example.com', 443, @bTls, @bAutoReconnect
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    --  Configure OAuth 2.0 bearer-token authentication.  The provider must contain a valid access token.
    DECLARE @oauth2 int
    EXEC @hr = sp_OACreate 'Chilkat.OAuth2', @oauth2 OUT

    --  Normally you would not hard-code secrets in source.  You should instead obtain them from an
    --  interactive prompt, environment variable, or a secrets vault.
    EXEC sp_OASetProperty @oauth2, 'AccessToken', 'OAUTH2_ACCESS_TOKEN'

    --  Associate the provider so Chilkat adds the bearer token to the Authorization header.
    EXEC sp_OAMethod @rest, 'SetAuthOAuth2', @success OUT, @oauth2
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @oauth2
        RETURN
      END

    DECLARE @responseText nvarchar(4000)
    EXEC sp_OAMethod @rest, 'FullRequestNoBody', @responseText OUT, 'GET', '/api/resource'
    EXEC sp_OAGetProperty @rest, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @oauth2
        RETURN
      END

    PRINT @responseText

    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @oauth2


END
GO