We set up the new API project in .NET Core in the previous article. We’ll continue working on the next job here. Part 1 of this post can be found by clicking here. You can read my Introduction To DocuSign article to learn about DocuSign’s apps and keys.
Step 5: Add the DocuSign API Controller.
Step 6: Add a Services folder and add interface class IDocuSignService and DocuSignService in it.
- Register the services in the Program.cs file(.net 6) or Startup.ts file(less than .net 5)
Step 7: Define the method in the IDocuSignService interface.
public interface IDocuSignService
{
Task<string> GetTokenFromDocuSign();
}
Step 8: Implement the method in the DocuSignService class.
public class DocuSignService : IDocuSignService
{
private readonly IConfiguration _configuration;
public DocuSignService(IConfiguration configuration)
{
_configuration = configuration;
}
public Task<string> GetTokenFromDocuSign()
{
var accessToken = string.Empty;
try
{
ApiClient _apiClient = new ApiClient();
_apiClient.SetOAuthBasePath(_configuration["DocuSign:AuthServer"]);
OAuth.OAuthToken authToken = _apiClient.RequestJWTUserToken(
_configuration["DocuSign:IntegrationKey"],
_configuration["DocuSign:UserId"],
_configuration["DocuSign:AuthServer"],
System.Text.Encoding.UTF8.GetBytes(File.ReadAllText(_configuration["DocuSign:RSAPrivateKeyFile"])),
int.Parse(_configuration["DocuSign:JWTLifeTime"]),
new List<string> { OAuth.Scope_SIGNATURE, OAuth.Scope_IMPERSONATION });
accessToken = authToken.access_token;
}
catch (Exception ex)
{
accessToken = ex.Message;
}
return Task.FromResult(accessToken);
}
}
Step 9: Finally initalize the method into the DocuSignController.
[HttpGet("GetTokenFromDocuSign")]
public async Task<IActionResult> GetTokenFromDocuSign()
{
var apiResponse = await _docuSignService.GetTokenFromDocuSign();
return new JsonResult(apiResponse);
}
Following these procedures will give you the string that represents your DocuSign access token.
What’s Next:
In the next article, we will generate a JSON file in DocuSign. We will upload the simple PDF file in the templates, and add some fields and a signature box then DocuSign will give the JSON file. You can read how to generate a JSON document file in DocuSign by clicking here
Related Articles:
Getting Started With The DocuSign
Get Authentication Token From The DocuSign (Part-1)
How To Create JSON Document File For Signature In DocuSign
Send Document To Other Users For Signature In DocuSign
