A utility to spawn commands using C# from edgejs in nodejs & TypeScript!

Spawn.ts

// tslint:disable-next-line:no-var-requires
const edge = require("edge-js");


export interface Options {

    fileName: string;

    arguments?: string;
}

export async function spawn(options: Options) {

    options = {
        arguments: "",
        ...options,
    };

    const deferred = {} as any;

    deferred.promise = new Promise<null>((resolve, reject) => {

        deferred.resolve = resolve;
        deferred.reject = reject;
    });

    const edgeFunction = edge.func(`

        async (dynamic input) => {

            var process = new System.Diagnostics.Process();

            process.StartInfo = new System.Diagnostics.ProcessStartInfo {
                WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden,
                FileName = input.fileName,
                Arguments = input.arguments,
            };

            process.Start();

            return null;
        }
    `);

    edgeFunction(options, (error: any, result: null) => {

        if (error) {

            deferred.reject(error);
        }
        else {

            deferred.resolve(result);
        }
    });

    await deferred.promise;
}

Spawning processes from within nodejs on Windows can be a pain when what you want to run is a .bat or .cmd file. For some reason, the process module in nodejs imposes that it be run in a console window. To get around this in a cross-platform way, I came up with the idea of leveraging edgejs and .net core!

See: nodejs/node#15217

@atrauzzi can you post the code you would use with "native" child_process?