Azure函数-应该在每个循环之后或结束时调用context.done [英] Azure function - should context.done be called after each loop or at end

问题描述

在Azure函数中说我有:

In an Azure function say I have:

const cosmosDBTrigger: AzureFunction = async function (context: Context, documents: any[]): Promise<void> {
    if (!!documents && documents.length > 0) {
        documents.forEach(function (document) {
            context.bindings.outputdocuments = document
            //1 - SHOULD IT GO HERE
        }); 
    }
//2 - SHOULD IT GO HERE
}

将 context.done 放置在位置1或2上是正确的位置吗?也就是说，应该在循环中每个文档的末尾吗?

Is the correct place to place context.done be in position 1 or 2. Namely should be after each document in the loop at the very end?

谢谢.

推荐答案

我不确定它如何在节点js中完成，但我认为应该是这样的

I am not sure how its done in node js but I assume should be something like this

const cosmosDBTrigger: AzureFunction = async function (context: Context, documents: any[]): Promise<void> {
    if (!!documents && documents.length > 0) {
        context.bindings.outputdocuments = documents; 
    }
    context.done();
}

原因是，您最后写的文件是

Reason you have only last document written is that if you do

context.bindings.outputdocuments = document

这意味着您通过循环覆盖了最后一个文档的输出，而不是提供一个数组.

It means that you overriding output by last document via loop instead of providing an array.

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