Add initial functionality to get an access token

This commit is contained in:
James Skemp 2022-09-10 16:52:24 -05:00
commit d54c520a10
9 changed files with 624 additions and 0 deletions

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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 16
VisualStudioVersion = 16.0.30114.105
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DriveThruRpgApi", "DriveThruRpgApi\DriveThruRpgApi.csproj", "{42987FEA-0573-464E-BE2C-AA0E5F8022A3}"
EndProject
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using System.Net.Http.Json;
using System.Text.Json;
using DriveThruRpgApi.Models;
public class ApiClient
{
private string apiBaseUrl = "https://www.drivethrurpg.com/api/v1/";
private readonly HttpClient httpClient;
private string applicationKey;
private ApiTokenMessageResponse? apiTokenResponse;
public ApiClient(HttpClient httpClient, string applicationKey)
{
this.httpClient = httpClient;
this.applicationKey = applicationKey;
}
public bool GetToken()
{
var headers = httpClient.DefaultRequestHeaders;
headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", applicationKey);
var request = new HttpRequestMessage(HttpMethod.Post, apiBaseUrl + "token")
{
Content = JsonContent.Create(new { })
};
var response = httpClient.Send(request);
if (!response.IsSuccessStatusCode) {
throw new Exception($"DriveThruRPG API failed to create a token: {(int)response.StatusCode} {response.ReasonPhrase}");
}
var tokenResponse = JsonSerializer.Deserialize<ApiTokenResponse>(response.Content.ReadAsStringAsync().Result);
if (tokenResponse != null && tokenResponse.Message != null) {
apiTokenResponse = tokenResponse.Message;
return true;
}
return false;
}
}

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net6.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Extensions.Hosting" Version="6.0.1" />
</ItemGroup>
</Project>

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using System.Text.Json;
using System.Text.Json.Serialization;
namespace DriveThruRpgApi.Models
{
public class ApiJsonDateTimeConvertor : JsonConverter<DateTime?>
{
public override DateTime? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
{
if (!string.IsNullOrWhiteSpace(reader.GetString())) {
return DateTime.Parse(reader.GetString());
}
return null;
}
public override void Write(Utf8JsonWriter writer, DateTime? value, JsonSerializerOptions options)
{
writer.WriteStringValue(value.ToString());
}
}
}

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using System.Text.Json.Serialization;
namespace DriveThruRpgApi.Models
{
public class ApiTokenResponse
{
[JsonPropertyName("status")]
public string? Status { get; set; }
[JsonPropertyName("message")]
public ApiTokenMessageResponse? Message { get; set; }
}
public class ApiTokenMessageResponse
{
[JsonPropertyName("access_token")]
public string? AccessToken { get; set; }
[JsonPropertyName("customers_id")]
public string? CustomersId { get; set; }
[JsonPropertyName("expires"), JsonConverter(typeof(ApiJsonDateTimeConvertor))]
public DateTime? Expires { get; set; }
[JsonPropertyName("jwt")]
public string? Jwt { get; set; }
[JsonPropertyName("server_time"), JsonConverter(typeof(ApiJsonDateTimeConvertor))]
public DateTime? ServerTime { get; set; }
}
}

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using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using IHost host = Host.CreateDefaultBuilder(args).Build();
IConfiguration config = host.Services.GetRequiredService<IConfiguration>();
// Application Key used to interact with the DriveThruRPG API.
string apiApplicationKey = config["DriveThruRpgApplicationKey"];
if (string.IsNullOrWhiteSpace(apiApplicationKey)) {
Console.WriteLine("Please enter an Application Key from DriveThruRPG.");
var suppliedApplicationKey = Console.ReadLine();
if (string.IsNullOrWhiteSpace(suppliedApplicationKey)) {
Console.WriteLine("No application key entered. Exiting.");
return;
}
apiApplicationKey = suppliedApplicationKey.Trim();
}
var httpClient = new HttpClient();
var apiClient = new ApiClient(httpClient, apiApplicationKey);
if (!apiClient.GetToken()) {
Console.WriteLine("Unable to get DriveThruRPG access token.");
}
// See https://aka.ms/new-console-template for more information
Console.WriteLine("Hello, World!");
Console.WriteLine(apiApplicationKey);

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{
"DriveThruRpgApplicationKey": ""
}

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# DriveThruRPG API Application for .NET 6
This is a .NET 6 console application for working with the DriveThruRPG API.
## Resources
- [DriveThruRPG](https://www.drivethrurpg.com/)
- [Create an Application Key in Account Settings](https://www.drivethrurpg.com/account_edit.php)