[英]Elsa workflow write to a log file
I want to write to a log file in an Elsa workflow.我想写入 Elsa 工作流程中的日志文件。 I was wondering if someone has an example of how they were able to write to a log file in an Elsa workflow.
我想知道是否有人有他们如何能够在 Elsa 工作流程中写入日志文件的示例。 I was trying to use the OutFile activity, but I am wondering if someone has an example of writing to a file using this activity or if there is another option to write to a log file in an Elsa workflow
我试图使用 OutFile 活动,但我想知道是否有人有使用此活动写入文件的示例,或者是否有其他选项可以在 Elsa 工作流程中写入日志文件
I found the best way to handle this was to create a custom activity in code.我发现处理此问题的最佳方法是在代码中创建自定义活动。 Here is the class that was created:
这是创建的 class:
[Action(
Category = "File",
DisplayName = "Write to File",
Description = "Writes text to a file")]
public class WriteToFile : Activity
{
[Required]
[ActivityInput(Hint = "Text to write to file.", UIHint = ActivityInputUIHints.SingleLine, SupportedSyntaxes = new[] { SyntaxNames.JavaScript, SyntaxNames.Liquid })]
public string Text { get; set; } = default!;
[Required]
[ActivityInput(Hint = "Path of the file to write to.", UIHint = ActivityInputUIHints.SingleLine, SupportedSyntaxes = new[] { SyntaxNames.JavaScript, SyntaxNames.Liquid })]
public string FilePath { get; set; } = default!;
[ActivityInput(Hint = "How to handle an existing file.", UIHint = ActivityInputUIHints.Dropdown, DefaultValue = CopyMode.Append)]
public CopyMode Mode { get; set; }
public override async ValueTask<IActivityExecutionResult> ExecuteAsync(ActivityExecutionContext context)
{
using (StreamWriter file = new(FilePath, append: Mode == CopyMode.Append))
{
await file.WriteLineAsync(Text);
};
return Done();
}
}
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