(SQL Server) HTTP POST JSON (application/json)

Demonstrates how to send a JSON POST using the application/json content-type.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- 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 @success int
    SELECT @success = 0

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

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

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT

    -- If any custom headers need to be included with the POST, add them
    -- by calling SetRequestHeader

    -- Note: An application should never explicitly set the Content-Length header.
    -- The Content-Length is automatically computed and added by Chilkat.

    -- Here are some examples of custom headers.  

    -- Perhaps your particular app needs some sort of custom-computed Authorization header...
    EXEC sp_OAMethod @http, 'SetRequestHeader', NULL, 'Authorization', 'my-custom-computed-auth-value'

    -- Another custom header for some hypothetical app:
    EXEC sp_OAMethod @http, 'SetRequestHeader', NULL, 'X-Pass-Timestamp', 'my-custom-computed-timestamp-value'

    -- The following "Accept" header may be set, but it really isn't necessary:
    EXEC sp_OAMethod @http, 'SetRequestHeader', NULL, 'Accept', 'application/json'

    DECLARE @jsonText nvarchar(4000)
    SELECT @jsonText = '{ some JSON text ... }'

    -- To use SSL/TLS, simply use "https://" in the URL.

    DECLARE @resp int
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @resp OUT

    EXEC sp_OAMethod @http, 'HttpStr', @success OUT, 'POST', 'http://www.someserver.com/someJsonEndpoint', @jsonText, 'utf-8', 'application/json', @resp
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @req
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END

    -- Display the JSON response.
    EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
    PRINT @sTmp0

    EXEC @hr = sp_OADestroy @req
    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @resp


END
GO