vCAC REST API's

Hi,

I got the documentation for vCAC REST API's from VMware vCloud Automation Center Documentation . I think it has updated recently. I was looking into that document but could not figure out how to establish connection to vCAC server using this API's. I used basic authentication and hitting this URI https://<vcac-server host name>/catalog-service/api  but the server is throwing back the below response, looks like i need to attach a authentication token to the header. How to get this token?

• <pre>java.lang.IllegalArgumentException: The HTTP token has invalid syntax arround index 0
• com.vmware.vim.sso.http.impl.ChunkParser.throwParseEx(ChunkParser.java:92)
• com.vmware.vim.sso.http.impl.ChunkParser.lookAt(ChunkParser.java:86)
• com.vmware.vim.sso.http.impl.ChunkParser.lookingAtPrefix(ChunkParser.java:74)
• com.vmware.vim.sso.http.impl.ChunkParser.next(ChunkParser.java:54)
• com.vmware.vim.sso.http.impl.TokenFormatter.parse(TokenFormatter.java:140)
• com.vmware.vim.sso.http.impl.InternalSamlDecoder.decode(InternalSamlDecoder.java:19)
• com.vmware.vcac.authentication.http.tenancy.SamlTenantIdentificationStrategy.identifyTenant(SamlTenantIdentificationStrategy.java:67)
• com.vmware.vcac.authentication.http.tenancy.TenancyContextFilter.determineTenancyContext(TenancyContextFilter.java:65)
• com.vmware.vcac.authentication.http.tenancy.TenancyContextFilter.doFilter(TenancyContextFilter.java:41)
• org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
• org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
• org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
• org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
• org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
• org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
• org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
• org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
• org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
• org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
• org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
• org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)