Adobe Sign (echo sign) API sending document using C#

Question

Okay I have limited understanding of working with API's

Im trying to get to grips with Adobe Sign API and hit a dead end, on there test page i have enterd this and it works

But i have no idea on how then do that in C#

I have tried the following, but know its missing the OAuth stuff and I'm just not sure what to try next. by the way foo.GetAgreementCreationInfo() just gets the string that is in the screen shot, I just moved it out cus it was big and ugly

var foo = new Models();
var client = new RestClient("https://api.na1.echosign.com/api/rest/v5");
// client.Authenticator = new HttpBasicAuthenticator(username, password);
var request = new RestRequest("agreements/{AgreementCreationInfo}", Method.POST);
request.AddParameter("name", "value"); // adds to POST or URL querystring based on Method
request.AddUrlSegment("AgreementCreationInfo",                     foo.GetAgreementCreationInfo()); // replaces matching token in request.Resource
IRestResponse response = client.Execute(request);
var content = response.Content; // raw content as string

Answer 1

You are misinterpreting the API documentation. The Access-Token parameter needed in your API is clearly an HTTP header, while the AgreementCreationInfo is simply the request body in JSON format. There is no URI segment, so rewrite your code as follows:

var foo = new Models();
//populate foo
var client = new RestClient("https://api.na1.echosign.com/api/rest/v5");
var request = new RestRequest("agreements", Method.POST);
request.AddHeader("Access-Token", "access_token_here!");
// request.AddHeader("x-api-user", "userid:jondoe"); //if you want to add the second header
request.AddParameter("application/json", foo.GetAgreementCreationInfo(), ParameterType.RequestBody);

IRestResponse response = client.Execute(request);
var content = response.Content;

Please also be aware that in RESTSharp you do not need to manually serialize your body into JSON at all. If you create a strongly typed object (or just an anonymous object could be enough) that has the same structure of your final JSON, RESTSharp will serialize it for you.

For a better approach I strongly suggest you to replace this line:

request.AddParameter("application/json", foo.GetAgreementCreationInfo(), ParameterType.RequestBody);

With those:

request.RequestFormat = DataFormat.Json;
request.AddBody(foo);

Assuming your foo object is of type Models and has the following structure along with its properties:

public class Models
{
    public DocumentCreationInfo documentCreationInfo { get; set; }
}

public class DocumentCreationInfo
{
    public List<FileInfo> fileInfos { get; set; }
    public string name { get; set; }
    public List<RecipientSetInfo> recipientSetInfos { get; set; }
    public string signatureType { get; set; }
    public string signatureFlow { get; set; }
}

public class FileInfo
{
    public string transientDocumentId { get; set; }
}

public class RecipientSetInfo
{
    public List<RecipientSetMemberInfo> recipientSetMemberInfos { get; set; }
    public string recipientSetRole { get; set; }
}

public class RecipientSetMemberInfo
{
    public string email { get; set; }
    public string fax { get; set; }
}