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Merge pull request #24 from Azure-Samples/refactor-cosmos-service
Refactor Azure Cosmos DB service
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| using Cosmos.Samples.NoSQL.Quickstart.Web.Models; | ||
| using Microsoft.Azure.Cosmos; | ||
|
|
||
| internal interface ICosmosDbService | ||
| { | ||
| Task RunDemoAsync(Func<string, Task> writeOutputAync); | ||
|
|
||
| string GetEndpoint(); | ||
| } | ||
|
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| internal sealed class CosmosDbService : ICosmosDbService | ||
| { | ||
| private readonly CosmosClient _client; | ||
|
|
||
| public CosmosDbService(CosmosClient client) | ||
| { | ||
| this._client = client; | ||
| } | ||
|
|
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| public string GetEndpoint() => $"{this._client.Endpoint}"; | ||
|
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| public async Task RunDemoAsync(Func<string, Task> writeOutputAync) | ||
| { | ||
| // <get_database> | ||
| Database database = this._client.GetDatabase("cosmicworks"); | ||
| // </get_database> | ||
| database = await database.ReadAsync(); | ||
| await writeOutputAync($"Get database:\t{database.Id}"); | ||
|
|
||
| // <get_container> | ||
| Container container = database.GetContainer("products"); | ||
| // </get_container> | ||
| container = await container.ReadContainerAsync(); | ||
| await writeOutputAync($"Get container:\t{container.Id}"); | ||
|
|
||
| { | ||
| // <create_item> | ||
| Product item = new( | ||
| id: "68719518391", | ||
| category: "gear-surf-surfboards", | ||
| name: "Yamba Surfboard", | ||
| quantity: 12, | ||
| price: 850.00m, | ||
| clearance: false | ||
| ); | ||
|
|
||
| ItemResponse<Product> response = await container.UpsertItemAsync<Product>( | ||
| item: item, | ||
| partitionKey: new PartitionKey("gear-surf-surfboards") | ||
| ); | ||
| // </create_item> | ||
| await writeOutputAync($"Upserted item:\t{response.Resource}"); | ||
| await writeOutputAync($"Status code:\t{response.StatusCode}"); | ||
| await writeOutputAync($"Request charge:\t{response.RequestCharge:0.00}"); | ||
| } | ||
|
|
||
| { | ||
| Product item = new( | ||
| id: "68719518371", | ||
| category: "gear-surf-surfboards", | ||
| name: "Kiama Classic Surfboard", | ||
| quantity: 25, | ||
| price: 790.00m, | ||
| clearance: false | ||
| ); | ||
|
|
||
| ItemResponse<Product> response = await container.UpsertItemAsync<Product>( | ||
| item: item, | ||
| partitionKey: new PartitionKey("gear-surf-surfboards") | ||
| ); | ||
| await writeOutputAync($"Upserted item:\t{response.Resource}"); | ||
| await writeOutputAync($"Status code:\t{response.StatusCode}"); | ||
| await writeOutputAync($"Request charge:\t{response.RequestCharge:0.00}"); | ||
| } | ||
|
|
||
| { | ||
| // <read_item> | ||
| ItemResponse<Product> response = await container.ReadItemAsync<Product>( | ||
| id: "68719518391", | ||
| partitionKey: new PartitionKey("gear-surf-surfboards") | ||
| ); | ||
| // </read_item> | ||
| await writeOutputAync($"Read item id:\t{response.Resource.id}"); | ||
| await writeOutputAync($"Read item:\t{response.Resource}"); | ||
| await writeOutputAync($"Status code:\t{response.StatusCode}"); | ||
| await writeOutputAync($"Request charge:\t{response.RequestCharge:0.00}"); | ||
| } | ||
|
|
||
| { | ||
| // <query_items> | ||
| var query = new QueryDefinition( | ||
| query: "SELECT * FROM products p WHERE p.category = @category" | ||
| ) | ||
| .WithParameter("@category", "gear-surf-surfboards"); | ||
|
|
||
| using FeedIterator<Product> feed = container.GetItemQueryIterator<Product>( | ||
| queryDefinition: query | ||
| ); | ||
| // </query_items> | ||
| await writeOutputAync($"Ran query:\t{query.QueryText}"); | ||
|
|
||
| // <parse_results> | ||
| List<Product> items = new(); | ||
| double requestCharge = 0d; | ||
| while (feed.HasMoreResults) | ||
| { | ||
| FeedResponse<Product> response = await feed.ReadNextAsync(); | ||
| foreach (Product item in response) | ||
| { | ||
| items.Add(item); | ||
| } | ||
| requestCharge += response.RequestCharge; | ||
| } | ||
| // </parse_results> | ||
|
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| foreach (var item in items) | ||
| { | ||
| await writeOutputAync($"Found item:\t{item.name}\t[{item.id}]"); | ||
| } | ||
| await writeOutputAync($"Request charge:\t{requestCharge:0.00}"); | ||
| } | ||
| } | ||
| } |