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[英]Sentry configuration in appsettings.json with Serilog in .Net Core 3 Console App
[英]Adding multiple endpoint routes to .net core console app from appsettings.json
我正在使用 .net 核心 3.1 来构建一个控制台应用程序,该应用程序充当事件处理程序 API。
该应用程序实时捕获对数据库的更改并将这些更改定向到其他 API。 将“customer”go 更新为“customerAPI”,“product”更新为“productAPI”等等。 这意味着我有一个 appsettings.Local.json 看起来像这样:
"DBConnectionStrings": {
"DefaultConnection": "AccountEndpoint=(my account)",
"SourceDatabaseName": "MyDB",
"SourceContainerName": "MySource",
"LeasesContainerName": "MyLease",
"PartitionKey": "/id"
},
"EndpointAPIStrings": {
"Endpoint1": {
"EndpointUrl": "https://localhost:7777",
"Username": "myusername1",
"Password": "mypassword1",
"Endpoint2": {
"EndpointUrl": "https://localhost:8888",
"Username": "myusername2",
"Password": "mypassword2",
"Endpoint3": {
"EndpointUrl": "https://localhost:9999",
"Username": "myusername3",
"Password": "mypassword3"
...
}
我目前正在使用一种糟糕的方法将它们声明为 EnvironmentVariables 以从我的 Main 中获取它们,在该 Main 中将配置构建到我的 CallAPI 任务中。
主要的:
public static async Task Main(string[] args)
{
...
IConfiguration configuration = BuildConfiguration(environmentName);
CosmosClient cosmosClient = BuildCosmosClient(configuration);
Environment.SetEnvironmentVariable("EndpointUrl", configuration["EndpointAPIStrings:Endpoint1:EndpointURL"]);
Environment.SetEnvironmentVariable("Username", configuration["EndpointAPIStrings:Endpoint1:Username"]);
Environment.SetEnvironmentVariable("Password", configuration["EndpointAPIStrings:Endpoint1:Password"]);
...
}
代表 function:
...
if (entityType == "myproduct")
{
var entity = "products";
var result = await Task.Run(() => CallAPIAsync(entity, item));
}
...
任务调用API:
public static async Task<HttpResponseMessage> CallAPIAsync(string entity, ProcessedItem item)
{
using (var client = new HttpClient())
{
Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
var endpointUrl = Environment.GetEnvironmentVariable("EndpointUrl");
var uri = new Uri($"{endpointUrl}/api/{entity}/{item.Id}/propagate");
string username = Environment.GetEnvironmentVariable("Username");
string password = Environment.GetEnvironmentVariable("Password");
...
}
}
这显然只适用于第一个端点,而忽略其他端点。
如何重构它以将所有 EndpointAPIStrings 的值放入我的 CallAPI 任务中?
您可以为其创建一个 class 并将值读入该 class。 也将其更改为 JSON 中的列表会很好。 我会做的步骤:
将“EndpointAPIStrings”更改为数组:
{ "EndpointAPIStrings":[ { "Id":"Endpoint1", "EndpointUrl":"https://localhost:7777", "Username":"myusername1", "Password":"mypassword1" }, { "Id":"Endpoint2", "EndpointUrl":"https://localhost:8888", "Username":"myusername2", "Password":"mypassword2" }, { "Id":"Endpoint3", "EndpointUrl":"https://localhost:9999", "Username":"myusername3", "Password":"mypassword3" } ] }
创建一个 C# class 定义 JSON 数组中的对象:
public sealed class EndPoint { public string Id { get; set; } public string EndPointUrl { get; set; } public string Username { get; set; } public string Password { get; set; } }
从配置中检索更改数据:
IConfiguration configuration = BuildConfiguration(environmentName); CosmosClient cosmosClient = BuildCosmosClient(configuration); List<EndPoint> endPoints = configuration.GetSection("EndPointAPIStrings").Get<List<EndPoint>>();
现在您的所有端点都在endPoints
变量中。 您可以按照自己的喜好删除和添加属性到 JSON 中,您唯一需要做的就是相应地更改 class。 请注意,您需要在 JSON 和 C# class 中使用相同的名称才能成功映射。
我在 Windows 服务 .net Core 3.1 应用程序中完成了此操作,非常相似。 本质上,当您在 program.cs 中调用 IHostBuilder function
public static IHostBuilder CreateHostBuilder(string[] args) =>
Host.CreateDefaultBuilder(args)
.UseWindowsService()
.ConfigureLogging(loggerFactory => loggerFactory.AddEventLog())
.ConfigureServices((hostContext, services) =>
{
services.AddHostedService<Worker>();
});
默认情况下,您可以从 appsettings.json 访问配置变量。 然后可以在您的主启动中访问或执行 function:
private readonly ILogger<Worker> _logger;
private readonly IServiceScopeFactory _serviceScopeFactory;
private readonly IConfiguration _config;
public Worker(ILogger<Worker> logger, IServiceScopeFactory serviceScopeFactory, IConfiguration config)
{
_logger = logger;
_serviceScopeFactory = serviceScopeFactory;
_config = config;
}
然后在你的主要或执行function:
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
// Must be a scoped process in order to run correctly
using var scope = _serviceScopeFactory.CreateScope();
// Start timer and begin log
var startTime = DateTime.UtcNow;
var env = _config.GetValue<string>("ENV");
var stageTable = _config.GetValue<string>("StageTable");
var prevTable = _config.GetValue<string>("PrevTable");
var mainTable = _config.GetValue<string>("MainTable");
var sqlConnectionString = _config.GetValue<string>("SqlConnString_" + env);
var excelConnectionString = _config.GetValue<string>("ExcelConnectionString1") +
_config.GetValue<string>("ExcelFilePath_" + env) +
_config.GetValue<string>("ExcelFileName") +
_config.GetValue<string>("ExcelConnectionString2");
使用 appsettings.json 像:
"ENV": "LOCAL",
"StageTable": "Staging",
"PrevTable": "Previous",
"MainTable": "Courses",
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