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);

}