azure_cosmosdb 0.9.3 azure_cosmosdb: ^0.9.3 copied to clipboard
NoSQL connector for Azure Cosmos DB, with a SQL twist! Supports Azure Cosmos DB SQL API on Dart and Flutter platforms
import 'dart:io';
import 'package:azure_cosmosdb/azure_cosmosdb.dart' as cosmosdb;
import 'http_overrides.dart';
const cosmosDbUrl = 'https://localhost:8081/';
const masterKey =
'C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==';
void main() async {
HttpOverrides.global = LocalhostHttpOverrides();
final cosmosDB = cosmosdb.Instance(cosmosDbUrl, masterKey: masterKey);
try {
await cosmosDB.databases.list();
} catch (e) {
print('Failed to reach Cosmos DB on $cosmosDbUrl!');
return;
}
final database = await cosmosDB.databases.openOrCreate('sample');
final todoCollection =
await database.collections.openOrCreate('todo', partitionKeys: ['/id']);
todoCollection.registerBuilder<ToDo>(ToDo.build);
final task = ToDo(
DateTime.now().millisecondsSinceEpoch.toString(),
'Improve tests',
dueDate: DateTime.now().add(Duration(days: 3)),
);
await todoCollection.add(task);
print('Added new task ${task.id} - ${task.label}');
final tasks = await todoCollection.query<ToDo>(cosmosdb.Query(
'SELECT * FROM c WHERE c.label = @improvetests',
params: {'@improvetests': task.label}));
print('Other tasks:');
for (var t in tasks.where((_) => _.id != task.id)) {
String status = 'still pending';
final dueDate = t.dueDate;
if (t.done) {
status = 'done';
} else if (dueDate != null) {
if (dueDate.isBefore(DateTime.now())) {
status = 'overdue since $dueDate';
} else {
status = 'expected for $dueDate';
}
}
print('* ${t.id} - ${t.label} - $status');
}
}
class ToDo extends cosmosdb.BaseDocumentWithEtag {
ToDo(
this.id,
this.label, {
this.description,
this.dueDate,
this.done = false,
});
@override
final String id;
String label;
String? description;
DateTime? dueDate;
bool done;
@override
Map<String, dynamic> toJson() => {
'id': id,
'label': label,
'description': description,
'due-date': dueDate?.toUtc().toIso8601String(),
'done': done,
};
static ToDo build(Map json) {
var dueDate = json['due-date'];
if (dueDate != null) {
dueDate = DateTime.parse(dueDate).toLocal();
}
final todo = ToDo(
json['id'],
json['label'],
description: json['description'],
dueDate: dueDate,
done: json['done'],
);
todo.setEtag(json);
return todo;
}
}