-Aggiunta dei servizi di connessione REST base, di SAP e di Salesforce
This commit is contained in:
Alessio Dal Santo
@@ -0,0 +1,509 @@
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using DataConnection.REST.Configuration;
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using DataConnection.REST.Interfaces;
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using DataConnection.REST.Models;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.Http;
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using System.Net.Http.Json;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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using System.Threading;
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using System.Threading.Tasks;
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namespace DataConnection.REST.Implementations
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{
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/// <summary>
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/// Client specific for Salesforce REST API.
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/// Handles OAuth2 authentication and metadata discovery.
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/// </summary>
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public class SalesforceServiceClient : BaseRestServiceClient, IRestMetadataDiscovery
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{
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private string? _accessToken;
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private string? _instanceUrl;
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private DateTime _tokenExpiry;
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public SalesforceServiceClient(HttpClient httpClient, RestServiceOptions options)
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: base(httpClient, options)
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{
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}
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/// <summary>
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/// Authenticates with Salesforce using Username/Password OAuth2 flow.
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/// </summary>
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/// <param name="clientId">Connected App Consumer Key</param>
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/// <param name="clientSecret">Connected App Consumer Secret</param>
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/// <param name="username">Salesforce username</param>
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/// <param name="password">Salesforce password + security token</param>
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/// <param name="cancellationToken">Cancellation token</param>
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/// <returns>True if authentication is successful</returns>
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public async Task<bool> AuthenticateAsync(string clientId, string clientSecret, string username, string password, CancellationToken cancellationToken = default)
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{
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try
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{
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var tokenEndpoint = "/services/oauth2/token";
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var tokenRequest = new List<KeyValuePair<string, string>>
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{
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new("grant_type", "password"),
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new("client_id", clientId),
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new("client_secret", clientSecret),
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new("username", username),
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new("password", password)
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};
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var formContent = new FormUrlEncodedContent(tokenRequest);
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Console.WriteLine($"--- Salesforce Authentication Attempt ---");
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Console.WriteLine($"Target URL: {_httpClient.BaseAddress}{tokenEndpoint}");
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Console.WriteLine($"Username: {username}");
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Console.WriteLine($"--- End Salesforce Authentication Attempt ---");
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var response = await _httpClient.PostAsync(tokenEndpoint, formContent, cancellationToken);
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if (!response.IsSuccessStatusCode)
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{
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var errorContent = await response.Content.ReadAsStringAsync(cancellationToken);
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Console.WriteLine($"Salesforce Authentication failed: {response.StatusCode}");
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Console.WriteLine($"Error details: {errorContent}");
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return false;
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}
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var tokenResponse = await response.Content.ReadFromJsonAsync<SalesforceTokenResponse>(cancellationToken: cancellationToken);
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if (tokenResponse != null && !string.IsNullOrEmpty(tokenResponse.AccessToken))
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{
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_accessToken = tokenResponse.AccessToken;
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_instanceUrl = tokenResponse.InstanceUrl;
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_tokenExpiry = DateTime.UtcNow.AddSeconds(3600); // Default 1 hour, Salesforce doesn't always return expires_in
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// Don't change BaseAddress - we'll use absolute URLs for API calls
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// Store the instance URL for building complete URLs later
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// Add Authorization header for future requests
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_httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", _accessToken);
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Console.WriteLine($"Salesforce Authentication successful. Token expires around: {_tokenExpiry.ToLocalTime()}");
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Console.WriteLine($"Instance URL: {_instanceUrl}");
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return true;
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}
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Console.WriteLine("Salesforce Authentication response could not be parsed.");
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return false;
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}
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catch (HttpRequestException ex)
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{
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Console.WriteLine($"HTTP Request Error during Salesforce Authentication: {ex.Message}");
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if (ex.InnerException != null)
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{
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Console.WriteLine($"Inner Exception: {ex.InnerException.Message}");
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}
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return false;
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}
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catch (JsonException ex)
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{
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Console.WriteLine($"JSON Parsing Error during Salesforce Authentication: {ex.Message}");
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return false;
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Error during Salesforce Authentication: {ex.Message}");
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return false;
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}
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}
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/// <summary>
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/// Checks if the current access token is active.
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/// </summary>
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public bool IsAuthenticated()
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{
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return !string.IsNullOrEmpty(_accessToken) && DateTime.UtcNow < _tokenExpiry;
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}
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/// <summary>
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/// Discovers SObjects (entities) and their fields from Salesforce.
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/// </summary>
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/// <param name="cancellationToken">Cancellation token</param>
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/// <returns>A list of discovered entity information</returns>
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public async Task<List<RestEntityInfo>> DiscoverEntitiesAsync(CancellationToken cancellationToken = default)
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{
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if (!IsAuthenticated())
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{
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Console.WriteLine("Error: Not authenticated to Salesforce. Cannot discover metadata.");
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return new List<RestEntityInfo>();
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}
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var entities = new List<RestEntityInfo>();
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try
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{
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// First, get list of all SObjects
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var sobjectsEndpoint = $"{_instanceUrl}/services/data/v60.0/sobjects/";
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var response = await _httpClient.GetAsync(sobjectsEndpoint, cancellationToken);
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response.EnsureSuccessStatusCode();
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var sobjectsResponse = await response.Content.ReadFromJsonAsync<SalesforceSObjectsResponse>(cancellationToken: cancellationToken); if (sobjectsResponse?.SObjects != null)
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{
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// For demo purposes, limit to first 20 objects to avoid too many API calls
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var limitedSObjects = sobjectsResponse.SObjects.ToList();
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// Process SObjects in parallel for better performance
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var semaphore = new SemaphoreSlim(20, 20); // Limit concurrent requests to 5
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var tasks = limitedSObjects.Where(sobject => !string.IsNullOrEmpty(sobject.Name))
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.Select(async sobject =>
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{
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await semaphore.WaitAsync(cancellationToken);
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try
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{
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// Get detailed field information for each SObject
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var describeEndpoint = $"{_instanceUrl}/services/data/v60.0/sobjects/{sobject.Name}/describe/";
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var describeResponse = await _httpClient.GetAsync(describeEndpoint, cancellationToken);
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if (describeResponse.IsSuccessStatusCode)
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{
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var describeResult = await describeResponse.Content.ReadFromJsonAsync<SalesforceDescribeResponse>(cancellationToken: cancellationToken);
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if (describeResult?.Fields != null)
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{
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var entityInfo = new RestEntityInfo
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{
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Name = sobject.Name
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};
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foreach (var field in describeResult.Fields)
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{
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if (string.IsNullOrEmpty(field.Name)) continue;
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var propInfo = new RestPropertyInfo
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{
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Name = field.Name,
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Type = field.Type ?? "string",
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IsKey = field.Name.Equals("Id", StringComparison.OrdinalIgnoreCase)
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};
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entityInfo.Properties.Add(propInfo);
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}
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return entityInfo;
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}
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}
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return null;
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Error describing SObject {sobject.Name}: {ex.Message}");
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return null;
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}
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finally
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{
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semaphore.Release();
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}
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});
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var results = await Task.WhenAll(tasks);
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entities.AddRange(results.Where(result => result != null)!);
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}
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}
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catch (HttpRequestException ex)
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{
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Console.WriteLine($"HTTP Request Error during Salesforce metadata discovery: {ex.Message}");
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}
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catch (JsonException ex)
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{
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Console.WriteLine($"JSON Parsing Error during Salesforce metadata discovery: {ex.Message}");
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Error during Salesforce metadata discovery: {ex.Message}");
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}
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return entities;
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}
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/// <summary>
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/// Discovers a list of available SObjects from Salesforce without detailed field information.
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/// </summary>
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/// <param name="cancellationToken">Cancellation token</param>
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/// <returns>A list of discovered SObject summaries</returns>
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public async Task<List<RestEntitySummary>> DiscoverEntitySummariesAsync(CancellationToken cancellationToken = default)
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{
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if (!IsAuthenticated())
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{
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Console.WriteLine("Error: Not authenticated to Salesforce. Cannot discover metadata.");
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return new List<RestEntitySummary>();
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}
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var entities = new List<RestEntitySummary>();
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try
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{
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// Get list of all SObjects
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var sobjectsEndpoint = $"{_instanceUrl}/services/data/v60.0/sobjects/";
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var response = await _httpClient.GetAsync(sobjectsEndpoint, cancellationToken);
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response.EnsureSuccessStatusCode();
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var sobjectsResponse = await response.Content.ReadFromJsonAsync<SalesforceSObjectsResponse>(cancellationToken: cancellationToken);
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if (sobjectsResponse?.SObjects != null)
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{
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foreach (var sobject in sobjectsResponse.SObjects)
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{
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if (string.IsNullOrEmpty(sobject.Name)) continue;
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var entitySummary = new RestEntitySummary
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{
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Name = sobject.Name,
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Label = sobject.Label ?? sobject.Name,
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IsCustom = sobject.Custom,
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EntityType = "SObject"
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};
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entities.Add(entitySummary);
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}
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}
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}
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catch (HttpRequestException ex)
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{
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Console.WriteLine($"HTTP Request Error during Salesforce metadata discovery: {ex.Message}");
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}
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catch (JsonException ex)
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{
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Console.WriteLine($"JSON Parsing Error during Salesforce metadata discovery: {ex.Message}");
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Error during Salesforce metadata discovery: {ex.Message}");
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}
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return entities.OrderBy(e => e.Name).ToList();
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}
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/// <summary>
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/// Discovers detailed information for a specific SObject including all its fields.
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/// </summary>
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/// <param name="entityName">The name of the SObject to get details for</param>
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/// <param name="cancellationToken">Cancellation token</param>
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/// <returns>Detailed SObject information or null if not found</returns>
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public async Task<RestEntityInfo?> DiscoverEntityDetailsAsync(string entityName, CancellationToken cancellationToken = default)
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{
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if (!IsAuthenticated())
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{
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Console.WriteLine("Error: Not authenticated to Salesforce. Cannot discover entity details.");
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return null;
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}
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try
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{
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// Get detailed field information for the specific SObject
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var describeEndpoint = $"{_instanceUrl}/services/data/v60.0/sobjects/{entityName}/describe/";
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var describeResponse = await _httpClient.GetAsync(describeEndpoint, cancellationToken);
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if (!describeResponse.IsSuccessStatusCode)
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{
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Console.WriteLine($"Failed to get details for SObject {entityName}: {describeResponse.StatusCode}");
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return null;
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}
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var describeResult = await describeResponse.Content.ReadFromJsonAsync<SalesforceDescribeResponse>(cancellationToken: cancellationToken);
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if (describeResult?.Fields != null)
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{
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var entityInfo = new RestEntityInfo
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{
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Name = entityName
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};
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foreach (var field in describeResult.Fields)
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{
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if (string.IsNullOrEmpty(field.Name)) continue;
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var propInfo = new RestPropertyInfo
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{
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Name = field.Name,
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Type = field.Type ?? "string",
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IsKey = field.Name.Equals("Id", StringComparison.OrdinalIgnoreCase),
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IsRequired = !field.Nillable,
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MaxLength = field.Length > 0 ? field.Length : null
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};
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entityInfo.Properties.Add(propInfo);
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}
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return entityInfo;
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}
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}
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catch (HttpRequestException ex)
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{
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Console.WriteLine($"HTTP Request Error during Salesforce entity details discovery: {ex.Message}");
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}
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catch (JsonException ex)
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{
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Console.WriteLine($"JSON Parsing Error during Salesforce entity details discovery: {ex.Message}");
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Error during Salesforce entity details discovery: {ex.Message}");
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}
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return null;
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}
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/// <summary>
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/// Creates a new SObject in Salesforce.
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/// </summary>
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/// <param name="entityName">The name of the SObject to create (e.g., "Account", "Contact").</param>
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/// <param name="entityData">The data for the new SObject as key-value pairs.</param>
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/// <param name="cancellationToken">Cancellation token.</param>
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/// <returns>The created entity data or null if creation failed.</returns>
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public override async Task<Dictionary<string, object>?> CreateEntityAsync(string entityName, Dictionary<string, object> entityData, CancellationToken cancellationToken = default)
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{
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if (!IsAuthenticated())
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{
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Console.WriteLine("Error: Not authenticated to Salesforce. Cannot create entity.");
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return null;
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} // Salesforce REST API endpoint for creating SObjects
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var createUri = $"{_instanceUrl}/services/data/v60.0/sobjects/{entityName}/";
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try
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{
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Console.WriteLine($"--- Salesforce Entity Creation Attempt ---");
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Console.WriteLine($"SObject: {entityName}");
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Console.WriteLine($"Target URL: {createUri}");
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Console.WriteLine($"Data: {System.Text.Json.JsonSerializer.Serialize(entityData)}");
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var response = await _httpClient.PostAsJsonAsync(createUri, entityData, cancellationToken);
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if (!response.IsSuccessStatusCode)
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{
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var errorContent = await response.Content.ReadAsStringAsync(cancellationToken);
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Console.WriteLine($"Salesforce Entity Creation failed: {response.StatusCode}");
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Console.WriteLine($"Error details: {errorContent}");
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Console.WriteLine($"--- End Salesforce Entity Creation Attempt (Failed) ---");
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return null;
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}
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var responseContent = await response.Content.ReadAsStringAsync(cancellationToken);
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Console.WriteLine($"Salesforce Entity Creation successful");
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Console.WriteLine($"Response: {responseContent}");
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Console.WriteLine($"--- End Salesforce Entity Creation Attempt (Success) ---");
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if (string.IsNullOrEmpty(responseContent))
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return entityData; // Return original data if no response content
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// Salesforce returns creation result with Id and success status
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var creationResult = System.Text.Json.JsonSerializer.Deserialize<Dictionary<string, object>>(responseContent);
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// Merge the original data with the creation result (which includes the new Id)
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if (creationResult != null)
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{
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var result = new Dictionary<string, object>(entityData);
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foreach (var kvp in creationResult)
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{
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result[kvp.Key] = kvp.Value;
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}
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return result;
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}
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return creationResult;
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}
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catch (HttpRequestException ex)
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{
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Console.WriteLine($"HTTP Request Error during Salesforce entity creation: {ex.Message}");
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if (ex.InnerException != null)
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{
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Console.WriteLine($"Inner Exception: {ex.InnerException.Message}");
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}
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Console.WriteLine($"--- End Salesforce Entity Creation Attempt (Exception) ---");
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return null;
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}
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catch (JsonException ex)
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{
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Console.WriteLine($"JSON Parsing Error during Salesforce entity creation: {ex.Message}");
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Console.WriteLine($"--- End Salesforce Entity Creation Attempt (JsonException) ---");
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return null;
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Error during Salesforce entity creation: {ex.Message}");
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Console.WriteLine($"--- End Salesforce Entity Creation Attempt (Exception) ---");
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return null;
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}
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}
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// --- Nested classes for deserializing Salesforce responses ---
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private class SalesforceTokenResponse
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{
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[JsonPropertyName("access_token")]
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public string AccessToken { get; set; } = string.Empty;
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[JsonPropertyName("instance_url")]
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public string InstanceUrl { get; set; } = string.Empty;
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[JsonPropertyName("id")]
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public string Id { get; set; } = string.Empty;
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[JsonPropertyName("token_type")]
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public string TokenType { get; set; } = string.Empty;
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[JsonPropertyName("issued_at")]
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public string IssuedAt { get; set; } = string.Empty;
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[JsonPropertyName("signature")]
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public string Signature { get; set; } = string.Empty;
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}
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private class SalesforceSObjectsResponse
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{
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[JsonPropertyName("encoding")]
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public string Encoding { get; set; } = string.Empty;
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[JsonPropertyName("maxBatchSize")]
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public int MaxBatchSize { get; set; }
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[JsonPropertyName("sobjects")]
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public List<SalesforceSObject> SObjects { get; set; } = new List<SalesforceSObject>();
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}
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private class SalesforceSObject
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{
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[JsonPropertyName("name")]
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public string Name { get; set; } = string.Empty;
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[JsonPropertyName("label")]
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public string Label { get; set; } = string.Empty;
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[JsonPropertyName("custom")]
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public bool Custom { get; set; }
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[JsonPropertyName("keyPrefix")]
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public string KeyPrefix { get; set; } = string.Empty;
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}
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private class SalesforceDescribeResponse
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{
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[JsonPropertyName("name")]
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public string Name { get; set; } = string.Empty;
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[JsonPropertyName("label")]
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public string Label { get; set; } = string.Empty;
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[JsonPropertyName("fields")]
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public List<SalesforceField> Fields { get; set; } = new List<SalesforceField>();
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||||
}
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||||
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private class SalesforceField
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{
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[JsonPropertyName("name")]
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public string Name { get; set; } = string.Empty;
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||||
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||||
[JsonPropertyName("type")]
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public string Type { get; set; } = string.Empty;
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||||
|
||||
[JsonPropertyName("label")]
|
||||
public string Label { get; set; } = string.Empty;
|
||||
|
||||
[JsonPropertyName("length")]
|
||||
public int Length { get; set; }
|
||||
|
||||
[JsonPropertyName("nillable")]
|
||||
public bool Nillable { get; set; }
|
||||
|
||||
[JsonPropertyName("unique")]
|
||||
public bool Unique { get; set; }
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user