2016-10-20 EdgeJS, C#<=>node.js



花了一个多小时研究为什么C#调用jsfunction不work。这是梳理过程。

1 script Node.js from C# works.

public static async Task Start()

        {

            var func = Edge.Func(@"

            returnfunction (data, callback) {

               callback(null, 'Node.js welcomes ' + data);

            }

        ");

 

            Console.WriteLine(await func(".NET"));

        }

        static void Main(string[] args)

        {

           Start().Wait();

            Console.ReadLine();

        }

2. Move exact js to js file works.

C# Program.cs:

public static async Task Start()

        {

            var func = Edge.Func(@"return require('../edgeEntryPoint.js')");

            Console.WriteLine(await func.Invoke(".NET"));

            //also can written like this

            //var invoke = func.Invoke(".NET");

            //var c = (dynamic)invoke.Result;

            //Console.WriteLine(c); //Node.js welcomes .NET

            //Console.WriteLine(await func(c));  //Node.js welcomesNode.js welcomes .NET

         }

        static void Main(string[] args)

        {

           Start().Wait();

            Console.ReadLine();

        }

edgeEntryPoint.js:

module.exports =  function (data, callback) {

    callback(null, 'Node.js welcomes ' +data);

}

3. function has more than one parameters. works

C#: var invoke = func.Invoke(new {data1=".NET", data2=".NET2"});

JS:

这个method可以像正常node.js一样，require任何文件和调用任何function

module.exports = function (data, callback) {

    callback(null, 'Node.js welcomes ' +data.data1 + data.data2);

}