Updates an existing signing session that is not in one of these statuses (Completed, Cancelled, Deleted, Purged, Expired, Archived) by sending a list of documents and signers to be added to the signing session.  See Appendix B for a list of predefined signer roles available.

URI POST rest/v1/sessions/updatesession

Returns – A SessionResponse containing the updated Signing Session.  (See SessionResponse in Appendix B)


encryptedTokenstringRequired. Encrypted Token returned from client authentication.
Returns null if token has expired or is invalid.
usernamestringRequired. Username (email address) of the user who’s starting the signing session.
sessionSessionRequired. See Session class in Appendix B

Example – C#

string uri = “rest/v1/sessions/updatesession”;
string signsessionId = “GUID of existing session”;
string url = string.Empty;
string autologinUrl = landingURL + “token={0}&user={1}&ssid={2}&page={3}”;
JavaScriptSerializer jss = new JavaScriptSerializer();
List<Document> documents = new List<Document>();
SessionResponse sessionResponse;

Session sessionConfig = new Session();

sessionConfig.Id = signsessionId;
sessionConfig.SessionInfo = new SessionInfo();

sessionConfig.SessionInfo.RemoveUnassignedSignerRoles = true; // Or false.

// Use this if you want your users to be redirected in eSign 2.0 when they hit the Send button on Step2
sessionConfig.SessionInfo.SendSessionRedirectUrl = “www.mysite.com”;
Document documentConfig = new Document();
documentConfig.FileName = “Test.docx”;
documentConfig.FormId = “”; // This is the value given in the Templates configuration.
documentConfig.FormTag = “Tag2”;

documentConfig.HasAnchorTags= true;  // New property telling eSign to process this document for Anchor Tags. Refer to Anchor Tags section.

documentConfig.AnchorTagsAdjustmentCategory= “predefined client specific category”;  // New property telling eSign to adjust the anchor tags of this document according to predefined adjustment values mapped to this category.

documentConfig.FileBytes = File.ReadAllBytes(@”D:\doc\Test.docx”);

sessionConfig.Documents = documents.ToArray();

Signer signer;
List<Signer> signers = new List<Signer>();

signer = new Signer();
signer.EmailAddress = “email1@docs.constellation1.com”;
signer.FirstName = “FirstName”;
signer.LastName = “LastName”;
signer.SignerRole = “Seller 1”; //(see signer roles Appendix B)
signer.AuthMethod = Authentication.KBAPlusPassword;
signer.AuthenticationSettings = new eSignAPI.AuthenticationSettings();
signer.AuthenticateSigner.Password = “password”;

// New flag to mandate a signer to upload a document before completing the session.

// You can also set this flag as part of the Properties parameter.

signer.MandateDocUpload = true; 

var disableEditName = new
Key = “DisableEditName”,
Value = “1”

var properties = new[]

signer.Properties = properties;

// Here we’re assuming the template used has two merge fields one called “CompanyName” and the other “Job Title”. So, you supply their values this way.

signer.MergeFieldMapping = new Dictionary<string, string>() { { “CompanyName”, “RED” }, { “Job Title”, “Manager” } };


signer = new Signer();
signer.EmailAddress = “email2@docs.constellation1.com”;
signer.FirstName = “FirstName”;
signer.LastName = “LastName”;
signer.SignerRole = “Buyer 1”; //(see signer roles Appendix B)
signer.AuthMethod = Authentication.KBA;
signer.Properties = properties;


sessionConfig.Signers = signers.ToArray();

var data = new
userName = userName,
session = sessionConfig
string json = serializer.Serialize(data);

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host + uri);
request.Headers.Add(“Authorization” , encryptedToken);
request.Method = “POST”;
request.ContentType = “application/json”;

using (StreamWriter writer = new StreamWriter(request.GetRequestStream()))

HttpWebResponse response = (HttpWebResponse)request.GetResponse();
responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
sessionResponse = jss.Deserialize<RequestResponse>(responseString);

signsessionId = sessionResponse.SigningSessionId.ToString();

url = string.Format(autologinUrl, encryptedToken, user, signsessionId, “continue”);