Azure table 存储 Node JS 函数 app return 响应为空

Question

我正在编写一个 Azure 函数应用程序来查询实体，我在回调中收到响应，但是当结果主体设置为响应时，它仍然 return 是空的，

我无法 return 实体作为响应，因为进程线程在响应设置之前完成，我不确定如何解决这个问题我已经尝试过 setInterval 但没有成功

下面是代码

module.exports = async function (context, req) {
    var storage = require('azure-storage')
    var storageClient = storage.createTableService(process.env.connectionString)
    var storageTableQuery = storage.TableQuery
    var query = new storageTableQuery().top(1).where('Mobile eq \'' + context.req.query.mobile + '\'')
    storageClient.queryEntities("Customers", query, null, function (error, result) {
        if (error) {
            context.res = {
                status: 200,
                body: error               
            }
        }
        else {
            context.res = {
                status: 200,
                body: result.entries,
                headers: {
                    'Content-Type': 'application/json'
                }
            }
        }
    });
}

Answer 1

问题请参考以下代码

const azure = require("azure-storage");
module.exports = async function (context, req) {
  const tableSvc = azure.createTableService(AZURE_STORAGE_CONNECTION_STRING);
  const tableQuery = new azure.TableQuery()
    .top(1)
    .where("PartitionKey eq ?", "Jack");
  try {
    const result = await queryEntitiesSegmented(
      tableSvc,
      "test",
      tableQuery,
      null
    );
    context.res = {
      status: 200,
      body: result.entries,
      headers: {
        "Content-Type": "application/json",
      },
    };
  } catch (error) {
    context.res = {
      status: 200,
      body: error,
    };
  }


async function queryEntitiesSegmented(
  tableSvc,
  table,
  tableQuery,
  continuationToken
) {
  return new Promise((resolve, reject) => {
    tableSvc.queryEntities(
      table,
      tableQuery,
      continuationToken,
      (error, result) => {
        if (error) {
          reject(error);
        } else {
          resolve(result);
        }
      }
    );
  });
}

Azure table 存储 Node JS 函数 app return 响应为空

Azure table storage Node JS function app return response empty

api

node.js

azure-table-storage

azure-functions