Thank you for a fast response!

This looks like what I was searching for.

Tried to modify it for a testround but ended up without any new node in admin and with an error with the scripts.

2015-04-01 15:45:24,311 [13] ERROR Umbraco.Core.Manifest.ManifestParser - [Thread 93] An error occurred parsing manifest with contents: {
    javascript: [
    '~/App_Plugins/JfpAddon/backoffice/producttree/edit.controller.js',
    '~/App_Plugins/JfpAddon/backoffice/producttree/delete.controller.js',
    '~/App_Plugins/JfpAddon/product.resource.js'
    ]
}

Newtonsoft.Json.JsonReaderException: Unexpected character encountered while parsing value: . Path '', line 0, position 0.
   at Newtonsoft.Json.JsonTextReader.ParseValue()
   at Newtonsoft.Json.JsonTextReader.ReadInternal()
   at Newtonsoft.Json.JsonTextReader.Read()
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ReadForType(JsonReader reader, JsonContract contract, Boolean hasConverter)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonSerializer.Deserialize(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value)
   at Umbraco.Core.Manifest.ManifestParser.CreateManifests(String[] manifestFileContents)

As written, there is some problems with the manifest file. The path seems legit and I can access the url.

My next guess would be that maybe the paths in resouce files is wrong. Don't know how the JfpAddon/ProductApi is routed by umbraco under the backoffice? This could be the problem I guess. 

angular.module("umbraco.resources").factory("productResource", function ($http) {
    return {
        getById: function (id) {
            return $http.get("backoffice/JfpAddon/ProductApi/GetById?id=" + id);
        },
        save: function (product) {
            return $http.post("backoffice/JfpAddon/ProductApi/PostSave", angular.toJson(product));
        },
        deleteById: function (id) {
            return $http.delete("backoffice/JfpAddon/ProductApi/DeleteById?id=" + id);
        }
    };
});

Screen of project files and folders

Ok, just because I posted the solution was found. For reference:

http://issues.umbraco.org/issue/U4-6043?preventRedirect=true

BOM characters did mess upp the manifest file

Hi Jan

Sorry for the late reply - Happy to see you figured out what went wrong initially :) - Remember to mark the post as solved so others can jump straight to the solution if they are wondering about how to deal with the same issue.

Happy coding! :)

/Jan

Adding a comment that was missing in the guide I think. When submitted, you need to add access right to the section under user --> section, or else you can't see it.

Hi Jan

Ah yes, I should have mentioned that since it's not mentioned anywhere and it something that's easy to forget about. I have spent a lot of time pulling my hair out double checking the code until I finally remembered :)

But good you figured it out!

/Jan

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