node.js 用于管理 Azure Cosmos db 教程代码的控制台应用程序代码抛出错误为未定义

Question

我是运行来自 Azure 文档中官方教程的 node.js 控制台应用程序。请在下面找到 link： https://docs.microsoft.com/en-us/azure/cosmos-db/sql/sql-api-nodejs-get-started 代码如下：

const cosmos = require("@azure/cosmos");
const CosmosClient = cosmos.CosmosClient;
 
const endpoint = "******"; // Add your endpoint
const masterKey = "******"; // Add the masterkey of the endpoint
const client = new CosmosClient({ endpoint, auth: { masterKey } });
const databaseId  = "brondbid"; // Add the Database ID
const containerId  = "broncollectid"; // Add the Container ID

const querySpec = {
    query: "SELECT * FROM c"    
};

async function run() {

    const { result: results } = await client.database(databaseId).container(containerId).items.query(querySpec, { enableCrossPartitionQuery: true }).toArray();

    for (var queryResult of results) {
        let resultString = JSON.stringify(queryResult);
        console.log(`\tQuery returned ${resultString}\n`);
    }
}

async function handleError(error) {
    console.log("\nAn error with code '" + error.code + "' has occurred:");
    console.log("\t" + error.body || error);
}

run().catch(handleError);

当我在终端运行节点 app.js 时，出现此错误。

An error with code 'undefined' has occurred:
        undefined

Answer 1

请试试这个代码：

const cosmos = require("@azure/cosmos");
const CosmosClient = cosmos.CosmosClient;

const endpoint = "******"; // Add your endpoint
const masterKey = "******"; // Add the masterkey of the endpoint
const client = new CosmosClient({ endpoint, key: masterKey });
const databaseId  = "brondbid"; // Add the Database ID
const containerId  = "broncollectid"; // Add the Container ID

const querySpec = {
  query: "SELECT * FROM c"
};

async function run() {
  const database = client.database(databaseId);
  const container = database.container(containerId);

  const { resources: results } = await container.items.query(querySpec, { enableCrossPartitionQuery: true }).fetchAll();

  for (var queryResult of results) {
    let resultString = JSON.stringify(queryResult);
    console.log(`\tQuery returned ${resultString}\n`);
  }
}

function handleError(error) {
  console.log(error);
  console.log("\nAn error with code '" + error.code + "' has occurred:");
  console.log("\t" + error.body || error);
}

run().catch(handleError);

基本上您的代码失败了，因为查询结果中没有可用的 .toArray() 方法。由于它不是 REST API 错误，因此您将获得 undefined 错误代码。

此外，查询 returns resources 键中的数据，而不是像您正在使用的 result 键中的数据。

node.js 用于管理 Azure Cosmos db 教程代码的控制台应用程序代码抛出错误为未定义

node.js console app code to manage Azure Cosmos db tutorial code throwing error as undefined

azure

node.js

azure-cosmosdb

azure-cosmosdb-sqlapi