Does LinqPad support latest Odata libraries? - odata

Does Linqpad use OData (WCF Data services) client library to generate the proxy that'll call the Data service OR does it use plain http/REST? Since it was getting strongly typed context, which can be used for the queries, I assume its using a proxy?
If its the former, is there a way to update the OData client library to be used by Linqpad?

LINQPad uses EntityClassGenerator in System.Data.Services.Design to generate the client proxy classes. This class is a standard part of the .NET Framework - I'm not aware of an updated OData client library... is there one?
Edit: LINQPad now supports OData 5 (from version 4.42.06).

Related

Consuming a WCF service in .NET Core 2.0

I have a WSDL service which worked fine (and is still working in .net 4.x) and fairly newcomer to .NET Core 2.0.
I created the WSDL web service reference (The same steps followed as https://learn.microsoft.com/en-us/dotnet/core/additional-tools/wcf-web-service-reference-guide)
My question is how to consume this service? Do someone know of a good tutorial? Any help would be greatly appreciated.
Thank you in advance
My question is how to consume this service?
The WCF Web Service Reference Provider Tool creates everything you need.
The client is automatically created with all the end-points in the service and any associated classes such as service parameters.
During the WCF Web Service Reference Provider Tool wizard you specify a namespace for the client, so if you entered CompanyName.Service you'd be able to create the client by typing var client = new CompanyName.Service.ClientName();
Please note that the name ClientName will be generated by the tool, and intelli-sense will you give you the actual name.
Once you have the client you can call any method on the service in the normal way. Such as:
var response = client.CancelPolicyAsync(cancelRequest);
Please check the link here:
Calling a SOAP service in .net Core
Calling a SOAP service in .net Core
How to Call WCF Services and Create SOAP Services with ASP.NET Core
Click here!
Your WCF service still is on .NET Classic - so nothing changed - you should consume it as always you do as regular WCF service.
What you have done creating WSDL web service reference - you have created client for Standard framework. Put it into separate Standard project. Then it can be referenced in core and classic frameworks aps.

Querying OData api from Redux

I have a Web API using OData that I need to query. The client application is a SPA built with React/Redux, but it looks as if most data service libraries such as isomorphic-fetch do not support OData. Can BreezeJS be useful for me in this situation? Or OLingo's ODataJs? Any examples, tutorials, resources on using these or any other OData clients with Redux? AFAIK, I just need a the client library to query an OData source and support promises. And as far as the data I get back from the server, I just need simple json objects; no need for models that support binding.
I've seen discussions of Breeze + Angular/Backbone, but can it support Redux/React?
I doubt that either Breeze or ODataJS supports ES6, so if i had to wrap them in a ES6 module, would they still function properly?
Maybe it helps if you consider that OData isn't that far off from REST. If it's just about pulling the data from a OData service, you won't need much more than jQuery.getJSON and Breeze will work too. However, if you want to do it the fancy way, and want you app to introspect the meta-model and such, you should have a look at datajs or olingo.

Wcf Web APi OData

I have recently discovered OData & the new WCF Web APi library on codeplex. The web api allows me to expose results as IQueryable, which allows me to expose URL's in the OData format. Myn question is what is the difference between this and a regular OData Service, I read the following blog post http://phejndorf.wordpress.com/2011/07/15/wcf-web-api-odata-format-doesnt-mean-odata-service/ but I am unsure what the OP means.
Thanks
The WCF Web API supports adding a [QueryComposition] attribute to a function so you can use the OData $filter=.. style of filtering data on the server and sending only a subset back to the client.
With OData, I should say WCF Data Services, there is much more that just querying. You can do all of the CRUD operations. It also means you are using the OData, is an AtomPub superset, protocol where with WCF Web API you do whatever you like. OData is actually a hypermedia format that contains metada, relations etc.

creating OData like services using RESTlet

I am trying to build a OData interface for Java application.
From what I have seen, one can create fully compliant OData services using microsoft technologies (aka visual studio) using their WCF services. Am I of the right impression?
I am trying to simulate OData services (it is also RESTful) using RESTlet + ROME(for atom feeds) + ROME Propono (for atompub service document). OData specification says that I canm access individual objects of a collection like http://mysite/service.svc/products(1)
Is there a way to represent this in RESTlet?
router.attach("products(id)") will not work
router.attach("products/get/{id}") is not really OData like.
Do you have any suggestions? Am I even doing it right?
Regards,
D
Have you tried this URI template?
router.attach("products({id})")

Consuming an ADO.NET Data Service from a WIN32 Delphi application. How?

Simple. I created a LINQ-TO-SQL Entity model, created a website, added a Data Service (*.svc) to this site and made sure it works by writing a simple .NET console application. The service works fine and cannot be modified.
Now I'm going to write a Delphi application (2007) for WIN32 which will have to call this data service. And while Delphi has no major problems importing a SOAP service, it can't import this service since it provides no WSDL...
So, two options. I could figure out how to generate a WSDL based on this data service or I'll have to find another way to consume this service. (Or just give up, but I hate to quit this challenge.) So, any advise?
ADO.NET Data Services are REST services. They are not SOAP WebServices and I don't think REST uses WSDL. You can call REST services from Delphi using HTTP GET/PUT/POST/DELETE. You could use Indy's TIdHTTPClient. See http://msdn.microsoft.com/en-us/library/cc668786.aspx for url examples. The results are in the Atom format, which is a XML format. You could parse it with TXMLDocument. They can also return JSON.
Maybe you can use the project Jedi "url grabber" components to consume the service. I have managed to get live share data using these in the past. I do not know exactly how your setup works, but maybe these can be helpful.
http://www.delphi-jedi.org/
You should also look at synapse, a small easy to use library which works well with REST. The latest version, which can be downloaded via SVN, works well in Delphi 2009.

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