Thank you both for replying! > Can you tell us more about your use case? Are the custom headers for some one > particular purpose? Sure! So our database, Allegrograph, allows us to pass down custom headers while querying or updating in order to store that information in access logs. For each SPARQL request we want to send down unique request markers and usernames in order to be able to trace from a UI click to backend calls to queries that were performed in the graph. Does that make sense? Do y’all have any ideas now that y’all know the use case?
Niraj Patel On Sep 9, 2018, 11:58 AM -0500, ajs6f <[email protected]>, wrote: > If the header is going to change on every request, setting default headers > may not be flexible enough-- the OP would have to change clients for every > query. > > Can you tell us more about your use case? Are the custom headers for some one > particular purpose? > > In a released version, you may have to use your own HTTP client and just let > Jena build the request bodies and parse the response bodies. We can look at > adding this to the API in a future release, but I'd like to hear more about > the use case first. > > ajs6f > > > On Sep 9, 2018, at 12:20 PM, Andy Seaborne <[email protected]> wrote: > > > > > > > > On 08/09/18 21:00, Niraj Patel wrote: > > > Hi! > > > I am using Jena's QueryEngineHTTP for queries and RemoteUpdateRequest for > > > updates. I would like to send a custom header that will differ on each > > > request. I did some digging around and it seems like it’s not possible. > > > Using default headers when configuring Apache’s Http Client wouldn’t work > > > in this case. Any ideas? > > > Niraj Patel > > > > Hi there, > > > > either create a QueryEngineHTTP directly passing in the required HttpClient > > specially created with setDefaultHeaders(headers) > > > > Also, have a look at the builder for RDFConnections that are remote: > > RDFConnectionRemote.create(RDFConnectionRemote) > > > > What's the use case for the custom header? I'm wondering if it is a usual > > or unusual situation. > > > > Andy >
