[BUG] Mongo Vector TypeError: Cannot read properties of undefined (reading 'startsWith') at <unknown>

[crapthings]

Describe the Bug

i'm trying to use mongo vector feature, but it doesn't work.

   "@mastra/ai-sdk": "^1.0.0-beta.12",
    "@mastra/core": "^1.0.0-beta.19",
    "@mastra/fastembed": "^1.0.0-beta.2",
    "@mastra/memory": "^1.0.0-beta.10",
    "@mastra/mongodb": "^1.0.0-beta.9",

Steps To Reproduce

import { MongoDBStore, MongoDBVector } from '@mastra/mongodb'

console.log('MONGO_URL_MASTRA:', process.env.MONGO_URL_MASTRA)
console.log('MONGO_DATABASE_MASTRA:', process.env.MONGO_DATABASE_MASTRA)
console.log(MongoDBVector)

export const storage = new MongoDBStore({
  id: 'mastra',
  url: process.env.MONGO_URL_MASTRA,
  dbName: process.env.MONGO_DATABASE_MASTRA
})

export const vectorStorage = new MongoDBVector({
  id: 'atlas',
  url: process.env.MONGO_URL_MASTRA,
  dbName: process.env.MONGO_DATABASE_MASTRA
})

await vectorStorage.createIndex({
  indexName: 'atlas_embeddings',
  dimension: 1536
})

MONGO_URL_MASTRA: mongodb://localhost:27017/?directConnection=true
MONGO_DATABASE_MASTRA: vortexis-studio
[class MongoDBVector extends MastraVector]
⨯ TypeError: Cannot read properties of undefined (reading 'startsWith')
    at <unknown> (src/mastra/storage.js:13:30)
  11 | })
  12 |
> 13 | export const vectorStorage = new MongoDBVector({
     |                              ^
  14 |   id: 'atlas',
  15 |   url: process.env.MONGO_URL_MASTRA,
  16 |   dbName: process.env.MONGO_DATABASE_MASTRA {

Link to Minimal Reproducible Example

https://github.com/mastra-ai/mastra

Expected Behavior

using mongo

Environment Information

"@mastra/ai-sdk": "^1.0.0-beta.12",
    "@mastra/core": "^1.0.0-beta.19",
    "@mastra/fastembed": "^1.0.0-beta.2",
    "@mastra/memory": "^1.0.0-beta.10",
    "@mastra/mongodb": "^1.0.0-beta.9",

Verification

• I have searched the existing issues to make sure this is not a duplicate
• I have included sufficient information for the team to reproduce and understand the issue

[daneatmastra]

Thank you for reporting this issue! We have labeled it for trio-tnt and we will look into it as soon as possible.

If you're experiencing an error, please provide a minimal reproducible example whenever possible to help us resolve it quickly.

[crapthings]

a.js

import 'dotenv/config'

import { MongoDBStore, MongoDBVector } from '@mastra/mongodb'

console.log('MONGO_URL_MASTRA:', process.env.MONGO_URL_MASTRA)
console.log('MONGO_DATABASE_MASTRA:', process.env.MONGO_DATABASE_MASTRA)
console.log(MongoDBVector)

export const storage = new MongoDBStore({
  id: 'mastra',
  url: process.env.MONGO_URL_MASTRA,
  dbName: process.env.MONGO_DATABASE_MASTRA
})

export const vectorStorage = new MongoDBVector({
  id: 'atlas',
  url: process.env.MONGO_URL_MASTRA,
  dbName: process.env.MONGO_DATABASE_MASTRA
})

await vectorStorage.createIndex({
  indexName: 'atlas_embeddings',
  dimension: 1536
})

Thank you for reporting this issue! We have labeled it for trio-tnt and we will look into it as soon as possible.

If you're experiencing an error, please provide a minimal reproducible example whenever possible to help us resolve it quickly.

MONGO_URL_MASTRA: mongodb://localhost:27017/?directConnection=true
MONGO_DATABASE_MASTRA: vortexis-studio
[class MongoDBVector extends MastraVector]
/Users/monsterstep/dev/ai-short-video-maker/node_modules/@mastra/mongodb/node_modules/mongodb-connection-string-url/lib/index.js:9
    return (connectionString.startsWith('mongodb://') ||
                             ^

TypeError: Cannot read properties of undefined (reading 'startsWith')
    at connectionStringHasValidScheme (/Users/monsterstep/dev/ai-short-video-maker/node_modules/@mastra/mongodb/node_modules/mongodb-connection-string-url/lib/index.js:9:30)
    at new ConnectionString (/Users/monsterstep/dev/ai-short-video-maker/node_modules/@mastra/mongodb/node_modules/mongodb-connection-string-url/lib/index.js:85:34)
    at parseOptions (/Users/monsterstep/dev/ai-short-video-maker/node_modules/@mastra/mongodb/node_modules/mongodb/lib/connection_string.js:197:17)
    at new MongoClient (/Users/monsterstep/dev/ai-short-video-maker/node_modules/@mastra/mongodb/node_modules/mongodb/lib/mongo_client.js:68:61)
    at new MongoDBVector (file:///Users/monsterstep/dev/ai-short-video-maker/node_modules/@mastra/mongodb/dist/index.js:119:20)
    at file:///Users/monsterstep/dev/ai-short-video-maker/a.js:15:30
    at ModuleJob.run (node:internal/modules/esm/module_job:343:25)
    at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:647:26)
    at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:117:5)

[crapthings]

okay it looks the mongo store instance use url as conn str
https://github.com/mastra-ai/mastra/blob/main/stores/mongodb/src/storage/db/index.ts#L42

but the mongo vector instance using uri as connection str
https://github.com/mastra-ai/mastra/blob/main/stores/mongodb/src/vector/index.ts#L62

in doc its url
https://mastra.ai/reference/v1/storage/mongodb#vector-search-capabilities

and here using uri will not work i think
https://github.com/mastra-ai/mastra/tree/main/stores/mongodb#storage

[graysonhicks]

Thanks @crapthings ! I think we should align the constructor params on both storage and vector to uri since that is more technically accurate. I have a PR here that improves the error messaging, keeps backwards compat for Storage code already using url, updates docs and changes Storage to have a uri param.