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Merged
anandgupta42 merged 5 commits into from
Mar 26, 2026
Merged

feat: add MongoDB driver support #482

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e431850
feat: add MongoDB driver support
anandgupta42 Mar 26, 2026
b5e060c
fix: address multi-model code review findings for MongoDB driver
anandgupta42 Mar 26, 2026
56acab4
fix: address CodeRabbit findings and update docs for MongoDB driver
anandgupta42 Mar 26, 2026
adaefa4
style: format MongoDB driver files with Prettier
anandgupta42 Mar 26, 2026
57ed576
fix: cap aggregate `$limit` and serialize `distinct` values (CodeRabbit)
anandgupta42 Mar 26, 2026
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18 changes: 18 additions & 0 deletions .github/workflows/ci.yml
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Expand Up@@ -45,6 +45,7 @@ jobs:
- 'packages/opencode/src/altimate/native/connections/**'
- 'packages/opencode/test/altimate/drivers-e2e.test.ts'
- 'packages/opencode/test/altimate/drivers-docker-e2e.test.ts'
- 'packages/opencode/test/altimate/drivers-mongodb-e2e.test.ts'
- 'packages/opencode/test/altimate/connections.test.ts'
dbt-tools:
- 'packages/dbt-tools/**'
Expand DownExpand Up@@ -155,6 +156,16 @@ jobs:
--health-timeout 5s
--health-retries 10

mongodb:
image: mongo:7.0
ports:
- 27017:27017
options: >-
--health-cmd "mongosh --eval 'db.runCommand({ping:1})' --quiet"
--health-interval 5s
--health-timeout 5s
--health-retries 10

steps:
- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4

Expand DownExpand Up@@ -195,6 +206,13 @@ jobs:
TEST_REDSHIFT_PORT: "15439"
TEST_REDSHIFT_PASSWORD: testpass123

- name: Run MongoDB driver E2E
run: bun test test/altimate/drivers-mongodb-e2e.test.ts
working-directory: packages/opencode
env:
TEST_MONGODB_HOST: 127.0.0.1
TEST_MONGODB_PORT: "27017"

# Cloud tests NOT included — they require real credentials
# Run locally with:
# ALTIMATE_CODE_CONN_SNOWFLAKE_TEST='...' bun test test/altimate/drivers-snowflake-e2e.test.ts
Expand Down
25 changes: 25 additions & 0 deletions bun.lock
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47 changes: 46 additions & 1 deletion docs/docs/configure/warehouses.md
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@@ -1,6 +1,6 @@
# Warehouses

Altimate Code connects to 8 warehouse types. Configure them in `.altimate-code/connections.json` (project-local) or `~/.altimate-code/connections.json` (global).
Altimate Code connects to 9 warehouse types. Configure them in `.altimate-code/connections.json` (project-local) or `~/.altimate-code/connections.json` (global).

## Configuration

Expand DownExpand Up@@ -237,6 +237,51 @@ If you're already authenticated via `gcloud`, omit `credentials_path`:
| `ssl_cert` | No | Path to client certificate file |
| `ssl_key` | No | Path to client key file |

## MongoDB

```json
{
"my-mongodb": {
"type": "mongodb",
"host": "localhost",
"port": 27017,
"database": "analytics",
"user": "analyst",
"password": "{env:MONGO_PASSWORD}"
}
}
```

| Field | Required | Description |
|-------|----------|-------------|
| `connection_string` | No | Full connection string (alternative to individual fields) |
| `host` | No | Hostname (default: `127.0.0.1`) |
| `port` | No | Port (default: `27017`) |
| `database` | No | Database name |
| `user` | No | Username |
| `password` | No | Password |
| `auth_source` | No | Authentication database (default: `admin`) |
| `replica_set` | No | Replica set name |
| `tls` | No | Enable TLS (default: `false`) |
| `direct_connection` | No | Connect directly to a single host |

### Using a connection string

```json
{
"my-mongodb": {
"type": "mongodb",
"connection_string": "mongodb://analyst:secret@localhost:27017/analytics"
}
}
```

!!! note
MongoDB uses MQL (MongoDB Query Language) instead of SQL. Queries are submitted as JSON objects via the `execute` method. Supported commands: `find`, `aggregate`, `countDocuments`, `distinct`, `insertOne`, `insertMany`, `updateOne`, `updateMany`, `deleteOne`, `deleteMany`, `createIndex`, `listIndexes`, `createCollection`, `dropCollection`, `ping`.

!!! info "Server compatibility"
The MongoDB driver (v6.x) supports MongoDB server versions 3.6 through 8.0, covering all releases from the last 3+ years.

## SQL Server

```json
Expand Down
3 changes: 2 additions & 1 deletion docs/docs/data-engineering/tools/warehouse-tools.md
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Expand Up@@ -70,6 +70,7 @@ env_bigquery | bigquery | GOOGLE_APPLICATION_CREDENTIALS
| Databricks | `DATABRICKS_HOST`, `DATABRICKS_SERVER_HOSTNAME` |
| PostgreSQL | `PGHOST`, `PGDATABASE`, `DATABASE_URL` |
| MySQL | `MYSQL_HOST`, `MYSQL_DATABASE` |
| MongoDB | `MONGODB_URI`, `MONGO_URL` |
| Redshift | `REDSHIFT_HOST` |

### Parameters
Expand DownExpand Up@@ -164,7 +165,7 @@ Remove an existing warehouse connection.

## warehouse_discover

Discover database containers running in Docker. Detects PostgreSQL, MySQL/MariaDB, and SQL Server containers with their connection details.
Discover database containers running in Docker. Detects PostgreSQL, MySQL/MariaDB, SQL Server, and MongoDB containers with their connection details.

```
> warehouse_discover
Expand Down
16 changes: 14 additions & 2 deletions docs/docs/drivers.md
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Expand Up@@ -2,7 +2,7 @@

## Overview

Altimate Code connects to 10 databases natively via TypeScript drivers. No Python dependency required. Drivers are loaded lazily, so only the driver you need is imported at runtime.
Altimate Code connects to 11 databases natively via TypeScript drivers. No Python dependency required. Drivers are loaded lazily, so only the driver you need is imported at runtime.

## Support Matrix

Expand All@@ -17,6 +17,7 @@ Altimate Code connects to 10 databases natively via TypeScript drivers. No Pytho
| Snowflake | `snowflake-sdk` | Password, Key-Pair (unencrypted + encrypted), OAuth | ✅ Live account | 37 E2E tests, key-pair with passphrase support |
| BigQuery | `@google-cloud/bigquery` | Service Account, ADC | ✅ Live account | 25 E2E tests, UNNEST/STRUCT/DATE types |
| Databricks | `@databricks/sql` | PAT, OAuth | ✅ Live account | 24 E2E tests, Unity Catalog support |
| MongoDB | `mongodb` | Password, Connection String | ✅ Docker | 90 E2E tests, MQL queries, aggregation pipelines |
| Oracle | `oracledb` (thin) | Password | ❌ Needs Oracle 12.1+ | Thin mode only, no Instant Client |

## Installation
Expand All@@ -33,6 +34,9 @@ bun add pg # PostgreSQL + Redshift
bun add mysql2 # MySQL
bun add mssql # SQL Server

# Document databases
bun add mongodb # MongoDB

# Cloud warehouses
bun add snowflake-sdk # Snowflake
bun add @google-cloud/bigquery # BigQuery
Expand DownExpand Up@@ -129,6 +133,14 @@ altimate-dbt init --project-root /path/to/dbt/project --python-path $(which pyth
|--------|--------------|
| Password | `host`, `port`, `service_name`, `user`, `password` |

### MongoDB
| Method | Config Fields |
|--------|--------------|
| Password | `host`, `port`, `database`, `user`, `password` |
| Connection String | `connection_string: "mongodb://user:pass@host:port/db"` |

MongoDB supports server versions 3.6 through 8.0. Queries use MQL (MongoDB Query Language) via JSON, not SQL. The driver supports `find`, `aggregate`, CRUD operations, index management, and schema introspection via document sampling.

### DuckDB
| Method | Config Fields |
|--------|--------------|
Expand DownExpand Up@@ -167,7 +179,7 @@ SSH auth types: `"key"` (default) or `"password"` (set `ssh_password`).

The CLI auto-discovers connections from:

1. **Docker containers**: detects running PostgreSQL, MySQL, MariaDB, SQL Server, Oracle containers
1. **Docker containers**: detects running PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, MongoDB containers
2. **dbt profiles**: parses `~/.dbt/profiles.yml` for all supported adapters
3. **Environment variables**: detects `SNOWFLAKE_ACCOUNT`, `PGHOST`, `MYSQL_HOST`, `MSSQL_HOST`, `ORACLE_HOST`, `DUCKDB_PATH`, `SQLITE_PATH`, etc.

Expand Down
3 changes: 2 additions & 1 deletion packages/drivers/package.json
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Expand Up@@ -16,6 +16,7 @@
"mysql2": "^3.0.0",
"mssql": "^11.0.0",
"oracledb": "^6.0.0",
"duckdb": "^1.0.0"
"duckdb": "^1.0.0",
"mongodb": "^6.0.0"
Comment on lines +19 to +20

@coderabbitaicoderabbitaiBotMar 26, 2026

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⚠️ Potential issue | 🟡 Minor

🧩 Analysis chain

🌐 Web query:

What is the latest stable version of the mongodb npm package?

💡 Result:

The latest stable version of the mongodb npm package is 7.1.1.

Citations:

Update mongodb package to latest stable version.

The mongodb ^6.0.0 constraint excludes the latest stable release (7.1.1). Update to ^7.0.0 to include security patches and bug fixes from the latest major version.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@packages/drivers/package.json` around lines 19 - 20, Update the mongodb
dependency version in packages/drivers/package.json from "mongodb": "^6.0.0" to
"mongodb": "^7.0.0" so the project can pull the latest stable 7.x releases;
after changing the dependency string, run your package manager to update the
lockfile (npm/yarn/pnpm install) and run the test suite/build to ensure no
breaking API changes affect code using the MongoClient or other mongodb-related
symbols.

}
}
2 changes: 1 addition & 1 deletion packages/drivers/src/index.ts
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@@ -1,7 +1,6 @@
// Re-export types
export type { Connector, ConnectorResult, SchemaColumn, ConnectionConfig } from "./types"


// Re-export config normalization
export { normalizeConfig } from "./normalize"

Expand All@@ -16,3 +15,4 @@ export { connect as connectSqlserver } from "./sqlserver"
export { connect as connectOracle } from "./oracle"
export { connect as connectDuckdb } from "./duckdb"
export { connect as connectSqlite } from "./sqlite"
export { connect as connectMongodb } from "./mongodb"
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