Elsa依据工作流程Id实例化工作流并调用相关节点信号量执行

Elsa依据工作流程Id实例化工作流并调用相关节点信号量执行

using Elsa;
using Elsa.Persistence;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Elsa.Persistence.Specifications.WorkflowInstances;
using Elsa.Activities.Signaling.Services;
using System.Threading;

namespace Workflow.Dashboard.Host.Pages.Test
{
    //http://localhost:49814/test/instance?id=576561afe7264ccd854b4b4ce1fcae45&userAction=Approve
    public class instanceModel : PageModel
    {
        private readonly IWorkflowInstanceStore workflowInstanceStore;
        private readonly ISignaler signaler;

        public instanceModel(IWorkflowInstanceStore workflowInstanceStore, ISignaler signaler)
        {
            this.workflowInstanceStore = workflowInstanceStore;
            this.signaler = signaler;
        }
        [BindProperty(SupportsGet = true)]
        public string id { get; set; }

        [BindProperty(SupportsGet = true)]
        public string userAction { get; set; }

        public string DisplayName { get; set; }
        public async Task OnGetAsync()
        {
            var ins = await workflowInstanceStore.FindAsync(new WorkflowInstanceIdSpecification(id));
            DisplayName = ins.DefinitionId;

            var startedWorkflows = await signaler.TriggerSignalAsync(userAction, workflowInstanceId:id);
        }
    }
}