87 lines
2.5 KiB
Markdown
87 lines
2.5 KiB
Markdown
# Angel3 Mongo
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[](https://dart.dev/null-safety)
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[](https://gitter.im/angel_dart/discussion)
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[](https://github.com/dart-backend/angel/tree/master/packages/mongo/LICENSE)
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MongoDB-enabled services for the Angel3 framework.
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## Installation
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Add the following to your `pubspec.yaml`:
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```yaml
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dependencies:
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angel3_mongo: ^8.0.0
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```
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## Usage
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This library exposes one main class: `MongoService`.
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## Model
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`Model` is class with no real functionality; however, it represents a basic document, and your services should host inherited classes. Other Angel service providers host `Model` as well, so you will easily be able to modify your application if you ever switch databases.
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```dart
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class User extends Model {
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String username;
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String password;
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}
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void main() async {
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var db = Db('mongodb://localhost:27017/local');
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await db.open();
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var service = app.use('/api/users', MongoService(db.collection("users")));
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service.afterCreated.listen((event) {
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print("New user: ${event.result}");
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});
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}
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```
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## MongoService
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This class interacts with `DbCollection` (from mongo_dart) and serializing data to and from Maps.
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## Querying
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You can query these services as follows:
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```curl
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/path/to/service?foo=bar
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```
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The above will query the database to find records where 'foo' equals 'bar'. The former will sort result in ascending order of creation, and so will the latter.
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```dart
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List queried = await MyService.index({r"$query": where.id(ObjectId.fromHexString("some hex string"})));
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```
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And, you can use mongo_dart queries. Just pass it as `query` within `params`.
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See the tests for more usage examples.
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## **Important Notes**
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When connecting to a locally installed instance of MongoDB or docker based MongoDB with authentication enabled, the following connection string is not supported yet.
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```dart
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var db = Db('mongodb://<username>:<password>@localhost:27017/testDB');
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await db.open();
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```
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Use the following instead. By default the user access information is stored in `admin` database.
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```dart
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var db = Db('mongodb://localhost:27017/testDB');
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await db.open();
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await db.authenticate("<username>", "<password>", authDb: "admin");
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```
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Where
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* `<username>` is MongoDB username
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* `<password>` is MongoDB password
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