Chilkat Examples

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SQL Server Web API Examples

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(SQL Server) Emoji Tweet

Demonstrates posting a status update that includes an emoji character.

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

    -- ----------------------------------------------------------------------
    -- This initial setup, which involves setting the OAuth1 properties and connecting
    -- to api.twitter.com, is only required once at the beginning.  Once connected, the same
    -- object instance may be re-used, and if necessary, it will automatically reconnect
    -- as needed.

    -- Assume we've previously obtained an access token and saved it to a JSON file..
    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.JsonObject', @json OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

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

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

    DECLARE @oauth1 int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.OAuth1', @oauth1 OUT

    EXEC sp_OASetProperty @oauth1, 'ConsumerKey', 'TWITTER_CONSUMER_KEY'
    EXEC sp_OASetProperty @oauth1, 'ConsumerSecret', 'TWITTER_CONSUMER_SECRET'
    EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'oauth_token'
    EXEC sp_OASetProperty @oauth1, 'Token', @sTmp0
    EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'oauth_token_secret'
    EXEC sp_OASetProperty @oauth1, 'TokenSecret', @sTmp0
    EXEC sp_OASetProperty @oauth1, 'SignatureMethod', 'HMAC-SHA1'
    EXEC sp_OAMethod @oauth1, 'GenNonce', @success OUT, 16

    EXEC sp_OAMethod @rest, 'SetAuthOAuth1', @success OUT, @oauth1, 0

    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'api.twitter.com', 443, 1, @bAutoReconnect
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @oauth1
        RETURN
      END

    -- This ends the initial setup...
    -- ----------------------------------------------------------------------

    -- For this example, I've pre-created a text file containing two emoji
    -- characters (the "ghost" emoji, and a "face savouring delicious food" emoji).  
    -- This text file was saved using the utf-8 encoding.

    -- The utf-8 bytes for the ghost emoji are 0x9f 0x91 0xbb.  (Note: This is the utf-8
    -- representation that does not use surrogate pairs.)
    -- 
    -- The utf-8 bytes for the "face savouring delicious food" emoji are \xF0\x9F\x98\x8B.

    DECLARE @sbText int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.StringBuilder', @sbText OUT

    EXEC sp_OAMethod @sbText, 'LoadFile', @success OUT, 'qa_data/txt/ghost_emoji.txt', 'utf-8'
    EXEC sp_OAMethod @sbText, 'Prepend', @success OUT, 'Test tweet using two emoji chars: '

    -- Send a tweet...
    EXEC sp_OAMethod @rest, 'ClearAllQueryParams', @success OUT
    EXEC sp_OAMethod @sbText, 'GetAsString', @sTmp0 OUT
    EXEC sp_OAMethod @rest, 'AddQueryParam', @success OUT, 'status', @sTmp0
    DECLARE @resp nvarchar(4000)
    EXEC sp_OAMethod @rest, 'FullRequestFormUrlEncoded', @resp OUT, 'POST', '/1.1/statuses/update.json'
    EXEC sp_OAGetProperty @rest, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @oauth1
        EXEC @hr = sp_OADestroy @sbText
        RETURN
      END

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

    EXEC sp_OASetProperty @jsonResponse, 'EmitCompact', 0
    EXEC sp_OAMethod @jsonResponse, 'Load', @success OUT, @resp

    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
    IF @iTmp0 <> 200
      BEGIN
        EXEC sp_OAMethod @jsonResponse, 'Emit', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @oauth1
        EXEC @hr = sp_OADestroy @sbText
        EXEC @hr = sp_OADestroy @jsonResponse
        RETURN
      END

    -- Show the successful response:
    EXEC sp_OAMethod @jsonResponse, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    PRINT 'Success.'

    EXEC @hr = sp_OADestroy @json
    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @oauth1
    EXEC @hr = sp_OADestroy @sbText
    EXEC @hr = sp_OADestroy @jsonResponse


END
GO

 

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