ServiceAPI + Postman, a match in heaven

No, it’s just a note-to-self.

A lot of customers have been using ServiceAPI, and to great successes. We also have very good documentation here – of which largely thanks to my colleague Mark Hall. But what if you want to play around with ServiceAPI and don’t want to write app/build/run it yourself? The answer is simple: There are many REST Clients can do the job for you, and Postman is usually regarded as the best/most popular one.

But, the documentation are for C# client, it can be quite confusing to use Postman to work with ServiceAPI for the first time (or times). If you are experienced with Postman, great! But if you are not – like me – when you use Postman from time to time and everytime it’s new, then this post can be useful to you. Today I need to do some tests with ServiceAPI, and I had to spend some time figuring out how to use Postman – so I decided it’s better to have all of those noted for future reference.

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Quicksilver + ServiceAPI: the authentication issues

It’s possible to run Quicksilver and ServiceAPI on a same site, with some modifications, as I blogged here. However, if you go down that path, there is something you must keep in mind: They are not using the same authentication mechanism.

I’ve seen issues where Quicksilver implementations have some WebAPI controllers, which were working fine until ServiceAPI is installed. The controllers started returning null for CustomerContext.Current.CustomerContact, and so on, breaking some functionalities. It’s bad, yes, but it happens because of reasons.

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Quicksilver – ServiceApi: fixing issues

From what I heard, developers seem to love both QuickSilver – as a template – and ServiceApi – as a REST server – very much. Despite of being relatively new on the field, they are being used quite frequently – QuickSilver is the preferred choice for MVC template while many sites are using ServiceApi to update the catalogs. What’s about the combination of these two? Would it be the best-of-bread for Episerver Commerce. I would say yes, but after you have fixed the issue.

The installation of ServiceApi.Commerce package to Quicksilver site should be easy and painless. Update the database and build the project, you should be expecting to have a working site.

Not quite. You should be seeing this error:

A route named 'MS_attributerouteWebApi' is already in the route collection. Route names must be unique.
Parameter name: name

It’s because


is called twice (as it’s called in ServiceApi as well). So naturally, let’s try by commenting that line in SiteInitalization.cs, and build it again.

This can also be solved by adding this into appSettings:

Which will signal ServiceAPI to skip calling


A new error would show up:

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