【发布时间】:2017-12-21 00:38:14
【问题描述】:
我正在使用 MongoDB 界面探索 Azure 的 CosmosDB。我编写了以下测试(使用 Jest)。我的大多数其他测试都可以将 MongoDB url 换成 CosmosDB url,它们将运行并通过。此测试在指向 MongoDB 时通过,但因 CosmosDB url 而失败:
const { MongoClient } = require('mongodb')
let client, db, collection
const url = 'mongodb://localhost:27017'
const dbName = 'test'
describe('talking to mongodb', () => {
beforeEach(async () => {
client = await MongoClient.connect(url)
db = client.db(dbName)
collection = db.collection('cities')
await collection.createIndex({ location: '2dsphere' })
})
afterEach(async () => {
await collection.drop()
client.close()
})
it('it can find geocoded things', async () => {
await collection.insertMany([
{
city: 'Ottawa, Canada',
location: {
type: 'Point',
coordinates: [-75.69719309999999, 45.4215296],
},
bbox: [-76.35391589999999, 44.962733, -75.2465979, 45.5375801],
},
{
city: 'Moscow, Russia',
location: { type: 'Point', coordinates: [37.6172999, 55.755826] },
bbox: [37.3193289, 55.48992699999999, 37.9456611, 56.009657],
},
])
let cursor = await collection.find({
location: {
$near: { type: 'Point', coordinates: [-79.3831843, 43.653226] },
$maxDistance: 500000,
},
})
let [doc] = await cursor.toArray()
expect(doc.city).toEqual('Ottawa, Canada')
})
})
此测试失败并出现以下错误:
● talking to mongodb › it can find geocoded things
MongoError: Request is malformed
at node_modules/mongodb-core/lib/cursor.js:769:34
at handleCallback (node_modules/mongodb-core/lib/cursor.js:178:5)
at setCursorDeadAndNotified (node_modules/mongodb-core/lib/cursor.js:545:3)
at nextFunction (node_modules/mongodb-core/lib/cursor.js:768:14)
at node_modules/mongodb-core/lib/cursor.js:665:7
at queryCallback (node_modules/mongodb-core/lib/cursor.js:263:5)
at node_modules/mongodb-core/lib/connection/pool.js:542:18
请记住,该查询在 MongoDB 中有效。稍微修改一下,我可以得到一个在 MongoDB 中工作的查询,并且不会在 CosmosDB 中生成错误:
db.cities.find({"location": { $near:{ $geometry: { type: "Point", coordinates: [-79.3831843, 43.653226] }, $maxDistance: 500000 }}})
但是,该查询在 CosmosDB 上没有返回任何内容。
我需要做什么才能让该查询返回结果并让该测试在 CosmosDB 上通过?
【问题讨论】:
标签: node.js mongodb azure azure-cosmosdb