(SQL Server) Banco Inter OAuth2 Client Credentials

Generate an OAuth2 access token needed to consume the Inter APIs.

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

For more information, see https://developers.bancointer.com.br/reference/token-3

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

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

    -- First load the certificate and private key, and set as the HTTP object's client certificate.
    DECLARE @cert int
    EXEC @hr = sp_OACreate 'Chilkat.Cert', @cert OUT

    EXEC sp_OAMethod @cert, 'LoadFromFile', @success OUT, '<nome arquivo certificado>.crt'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    DECLARE @bdPrivKey int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bdPrivKey OUT

    EXEC sp_OAMethod @bdPrivKey, 'LoadFile', @success OUT, '<nome arquivo chave privada>.key'
    IF @success = 0
      BEGIN

        PRINT 'Failed to load <nome'
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @bdPrivKey
        RETURN
      END

    DECLARE @privKey int
    EXEC @hr = sp_OACreate 'Chilkat.PrivateKey', @privKey OUT

    EXEC sp_OAMethod @privKey, 'LoadAnyFormat', @success OUT, @bdPrivKey, ''
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @privKey, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @bdPrivKey
        EXEC @hr = sp_OADestroy @privKey
        RETURN
      END

    EXEC sp_OAMethod @cert, 'SetPrivateKey', @success OUT, @privKey
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @bdPrivKey
        EXEC @hr = sp_OADestroy @privKey
        RETURN
      END

    EXEC sp_OAMethod @http, 'SetSslClientCert', @success OUT, @cert
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @bdPrivKey
        EXEC @hr = sp_OADestroy @privKey
        RETURN
      END

    DECLARE @req int
    EXEC @hr = sp_OACreate 'Chilkat.HttpRequest', @req OUT

    EXEC sp_OASetProperty @req, 'HttpVerb', 'POST'
    EXEC sp_OASetProperty @req, 'Path', '/oauth/v2/token'
    EXEC sp_OASetProperty @req, 'ContentType', 'application/x-www-form-urlencoded'
    EXEC sp_OAMethod @req, 'AddParam', NULL, 'grant_type', 'client_credentials'
    -- Requested scopes in OAuth2 are typically SPACE separated.
    EXEC sp_OAMethod @req, 'AddParam', NULL, 'scope', 'boleto-cobranca.read boleto-cobranca.write'
    EXEC sp_OAMethod @req, 'AddHeader', NULL, 'accept', 'application/json'

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

    EXEC sp_OAMethod @http, 'HttpReq', @success OUT, 'https://cdpj.partners.bancointer.com.br/oauth/v2/token', @req, @resp
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @bdPrivKey
        EXEC @hr = sp_OADestroy @privKey
        EXEC @hr = sp_OADestroy @req
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END

    DECLARE @jResp int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jResp OUT

    EXEC sp_OAMethod @resp, 'GetBodyJson', @success OUT, @jResp
    EXEC sp_OASetProperty @jResp, 'EmitCompact', 0


    PRINT 'Response Body:'
    EXEC sp_OAMethod @jResp, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    DECLARE @respStatusCode int
    EXEC sp_OAGetProperty @resp, 'StatusCode', @respStatusCode OUT

    PRINT 'Response Status Code = ' + @respStatusCode
    IF @respStatusCode >= 400
      BEGIN

        PRINT 'Response Header:'
        EXEC sp_OAGetProperty @resp, 'Header', @sTmp0 OUT
        PRINT @sTmp0

        PRINT 'Failed.'
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @bdPrivKey
        EXEC @hr = sp_OADestroy @privKey
        EXEC @hr = sp_OADestroy @req
        EXEC @hr = sp_OADestroy @resp
        EXEC @hr = sp_OADestroy @jResp
        RETURN
      END

    EXEC sp_OAMethod @jResp, 'WriteFile', @success OUT, 'qa_data/tokens/banco_inter_client_credentials.json'
    IF @success = 0
      BEGIN

        PRINT 'Failed to save JSON access token file.'
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @bdPrivKey
        EXEC @hr = sp_OADestroy @privKey
        EXEC @hr = sp_OADestroy @req
        EXEC @hr = sp_OADestroy @resp
        EXEC @hr = sp_OADestroy @jResp
        RETURN
      END


    PRINT 'Success.'

    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @cert
    EXEC @hr = sp_OADestroy @bdPrivKey
    EXEC @hr = sp_OADestroy @privKey
    EXEC @hr = sp_OADestroy @req
    EXEC @hr = sp_OADestroy @resp
    EXEC @hr = sp_OADestroy @jResp


END
GO