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SQL Server Web API Examples

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(SQL Server) GeoOp Exchange Refresh Token for New Access Token

Demonstrates how to use the /oauth2/token endpoint to exchange it for a new access token once the current access token has expired.

Note: This example requires Chilkat v9.5.0.65 or greater.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    -- This example also assumes that OAuth2 access and refresh tokens were previously fetched.
    -- and saved in a JSON file.  

    -- First get our previously obtained refresh token.
    -- { .... "refresh_token":"e6dqdG....mzjpT04w==", .... }
    DECLARE @jsonToken int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.JsonObject', @jsonToken OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @jsonToken, 'LoadFile', @success OUT, 'qa_data/tokens/geoop.json'

    DECLARE @rest int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Rest', @rest OUT

    -- Connect to GeoOp...
    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'login.geoop.com', 443, 1, @bAutoReconnect
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jsonToken
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    -- Set the X-Version header.
    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'X-Version', '1.0'

    -- Provide the required form params to get the new access token

    EXEC sp_OAMethod @jsonToken, 'StringOf', @sTmp0 OUT, 'refresh_token'
    PRINT 'refresh_token = ' + @sTmp0
    EXEC sp_OAMethod @jsonToken, 'StringOf', @sTmp0 OUT, 'refresh_token'
    EXEC sp_OAMethod @rest, 'AddQueryParam', @success OUT, 'refresh_token', @sTmp0
    EXEC sp_OAMethod @rest, 'AddQueryParam', @success OUT, 'grant_type', 'refresh_token'
    EXEC sp_OAMethod @rest, 'AddQueryParam', @success OUT, 'client_id', 'GEOOP-CLIENT-ID'
    EXEC sp_OAMethod @rest, 'AddQueryParam', @success OUT, 'client_secret', 'GEOOP-CLIENT-SECRET'

    DECLARE @responseBody nvarchar(4000)
    EXEC sp_OAMethod @rest, 'FullRequestFormUrlEncoded', @responseBody OUT, 'POST', '/oauth2/token'
    EXEC sp_OAGetProperty @rest, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jsonToken
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    -- If the response status code did not indicate success, then see what happened..
    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
    IF @iTmp0 <> 200
      BEGIN

        PRINT 'Request Header: '
        EXEC sp_OAGetProperty @rest, 'LastRequestHeader', @sTmp0 OUT
        PRINT @sTmp0

        PRINT '----'

        EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
        PRINT 'Response StatusCode = ' + @iTmp0

        EXEC sp_OAGetProperty @rest, 'ResponseStatusText', @sTmp0 OUT
        PRINT 'Response StatusLine: ' + @sTmp0

        PRINT 'Response Header:'
        EXEC sp_OAGetProperty @rest, 'ResponseHeader', @sTmp0 OUT
        PRINT @sTmp0

        PRINT @responseBody
        EXEC @hr = sp_OADestroy @jsonToken
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.JsonObject', @json OUT

    EXEC sp_OASetProperty @json, 'EmitCompact', 0
    EXEC sp_OAMethod @json, 'Load', @success OUT, @responseBody

    -- Show the full JSON response.  It should contain the new access token...
    EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    EXEC @hr = sp_OADestroy @jsonToken
    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @json


END
GO

 

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