SQL Server

Yahoo Mail Refresh OAuth2 Access Token

See more Yahoo Mail Examples

Demonstrates how to refresh an OAuth2 Yahoo Mail access token. SQL Server

--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    --  This example requires the Chilkat API to have been previously unlocked.
    --  See Global Unlock Sample for sample code.

    --  It is assumed we previously obtained an OAuth2 access token.
    --  This example loads the JSON access token file 
    --  saved by this example: Get Yahoo Mail OAuth2 Access Token

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

    EXEC sp_OAMethod @jsonToken, 'LoadFile', @success OUT, 'qa_data/tokens/yahooMail.json'
    IF @success <> 1
      BEGIN

        PRINT 'Failed to load googleSheets.json'
        EXEC @hr = sp_OADestroy @jsonToken
        RETURN
      END

    --  The access token JSON looks like this:

    --  {
    --    "access_token": "kCVQdnOdul...LHucA--",
    --    "refresh_token": "AIenVWETSo0jklFBVkPS8vVm8E.Dj9ToRG.xDbDYmZ55WIs5t6CZhDkD",
    --    "expires_in": 3600,
    --    "token_type": "bearer",
    --    "xoauth_yahoo_guid": "HGDQCVF6JB4YDOWHITPJFBHCWA"
    --  }

    DECLARE @oauth2 int
    EXEC @hr = sp_OACreate 'Chilkat.OAuth2', @oauth2 OUT

    --  See Step 5 at https://developer.yahoo.com/oauth2/guide/flows_authcode/
    EXEC sp_OASetProperty @oauth2, 'TokenEndpoint', 'https://api.login.yahoo.com/oauth2/get_token'

    --  Replace these with actual values.
    EXEC sp_OASetProperty @oauth2, 'ClientId', 'CLIENT_ID'
    EXEC sp_OASetProperty @oauth2, 'ClientSecret', 'CLIENT_SECRET'

    --  Get the "refresh_token"
    EXEC sp_OAMethod @jsonToken, 'StringOf', @sTmp0 OUT, 'refresh_token'
    EXEC sp_OASetProperty @oauth2, 'RefreshToken', @sTmp0

    --  Send the HTTP POST to refresh the access token..
    EXEC sp_OAMethod @oauth2, 'RefreshAccessToken', @success OUT
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @oauth2, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jsonToken
        EXEC @hr = sp_OADestroy @oauth2
        RETURN
      END

    --  The response contains a new access token, but we must keep
    --  our existing refresh token for when we need to refresh again in the future.
    EXEC sp_OAGetProperty @oauth2, 'AccessToken', @sTmp0 OUT
    EXEC sp_OAMethod @jsonToken, 'UpdateString', @success OUT, 'access_token', @sTmp0

    --  Save the new JSON access token response to a file.
    DECLARE @sbJson int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbJson OUT

    EXEC sp_OASetProperty @jsonToken, 'EmitCompact', 0
    EXEC sp_OAMethod @jsonToken, 'EmitSb', @success OUT, @sbJson
    EXEC sp_OAMethod @sbJson, 'WriteFile', @success OUT, 'qa_data/tokens/yahooMail.json', 'utf-8', 0


    PRINT 'OAuth2 authorization granted!'

    EXEC sp_OAGetProperty @oauth2, 'AccessToken', @sTmp0 OUT
    PRINT 'New Access Token = ' + @sTmp0

    EXEC @hr = sp_OADestroy @jsonToken
    EXEC @hr = sp_OADestroy @oauth2
    EXEC @hr = sp_OADestroy @sbJson


END
GO