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(SQL Server) HTTP Request Boundary PropertyExplains and demonstrates the HTTP request Boundary property. For multipart HTTP requests, Chilkat auto-generates a boundary string when the Boundary property is left unset (or empty). For example: POST /something HTTP/1.1 Content-Type: multipart/form-data; boundary=------------090207000006060206010508 Host: domain Content-Length: 378 --------------090207000006060206010508 Content-Disposition: form-data; name="fileA"; filename="fileA.txt" Content-Type: text/plain This is the contents of file A --------------090207000006060206010508 Content-Disposition: form-data; name="fileB"; filename="fileB.txt" Content-Type: text/plain This is the contents of file B --------------090207000006060206010508--If the Boundary property is set, then Chilkat uses it. For example, if the Boundary property is set to "ABC123HELLOWORLD" POST /something HTTP/1.1 Content-Type: multipart/form-data; boundary=ABC123HELLOWORLD Host: domain Content-Length: 318 --ABC123HELLOWORLD Content-Disposition: form-data; name="fileA"; filename="fileA.txt" Content-Type: text/plain This is the contents of file A --ABC123HELLOWORLD Content-Disposition: form-data; name="fileB"; filename="fileB.txt" Content-Type: text/plain This is the contents of file B --ABC123HELLOWORLD--
-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls. -- CREATE PROCEDURE ChilkatSample AS BEGIN DECLARE @hr int -- Important: Do not use nvarchar(max). See the warning about using nvarchar(max). DECLARE @sTmp0 nvarchar(4000) DECLARE @req int -- Use "Chilkat_9_5_0.HttpRequest" for versions of Chilkat < 10.0.0 EXEC @hr = sp_OACreate 'Chilkat.HttpRequest', @req OUT IF @hr <> 0 BEGIN PRINT 'Failed to create ActiveX component' RETURN END EXEC sp_OASetProperty @req, 'HttpVerb', 'POST' EXEC sp_OASetProperty @req, 'Path', '/something' EXEC sp_OASetProperty @req, 'ContentType', 'multipart/form-data' DECLARE @success int EXEC sp_OAMethod @req, 'AddStringForUpload', @success OUT, 'fileA', 'fileA.txt', 'This is the contents of file A', 'utf-8' EXEC sp_OAMethod @req, 'AddStringForUpload', @success OUT, 'fileB', 'fileB.txt', 'This is the contents of file B', 'utf-8' -- When the Boundary property is empty (has not yet been set) -- Chilkat auto-generates a random boundary for the request. -- This should almost always be sufficient. -- For example, one can see the generated boundary here: EXEC sp_OAMethod @req, 'GenerateRequestText', @sTmp0 OUT PRINT @sTmp0 -- If the Boundary property is set to a specific string, then the -- request will use it: EXEC sp_OASetProperty @req, 'Boundary', 'ABC123HELLOWORLD' EXEC sp_OAMethod @req, 'GenerateRequestText', @sTmp0 OUT PRINT @sTmp0 EXEC @hr = sp_OADestroy @req END GO |
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