Objective-C

DocuSign: Requesting a Signature via Email (Remote Signing)

See more DocuSign Examples

This code example demonstrates the simplest and quickest workflow for requesting a signature for a document via email. The email will contain a signing link the recipient can use to electronically sign a document from their mobile or desktop computer. Objective-C

#import <CkoHttp.h>
#import <CkoBinData.h>
#import <CkoJsonObject.h>
#import <CkoStringBuilder.h>
#import <CkoHttpResponse.h>
#import <NSString.h>

BOOL success = NO;

//  This example assumes the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

CkoHttp *http = [[CkoHttp alloc] init];

//  Implements the following CURL command:

//  curl --request POST https://demo.docusign.net/restapi/v2.1/accounts/${accountId}/envelopes \
//       --header "Authorization: Bearer ${accessToken}" \
//       --header "Content-Type: application/json" \
//       --data '{
//      "emailSubject": "Please sign this document",
//      "documents": [
//          {
//              "documentBase64": "JVBERi0xLjMKMyAwIG9iag ... dGFydHhyZWYKNjk5CiUlRU9GCg==",
//              "name": "Lorem Ipsum",
//              "fileExtension": "pdf",
//              "documentId": "1"
//          }
//      ],
//      "recipients": {
//          "signers": [
//              {
//                  "email": "joe_sample@example.com",
//                  "name": "Joe Sample",
//                  "recipientId": "1",
//                  "routingOrder": "1",
//                  "tabs": {
//                      "signHereTabs": [
//                          {
//                              "documentId": "1", "pageNumber": "1",
//                              "recipientId": "1", "tabLabel": "SignHereTab",
//                              "xPosition": "195", "yPosition": "147"
//                          }
//                      ]
//                  }
//              }
//          ]
//      },
//      "status": "sent"
//  }'

//  Use this online tool to generate code from sample JSON:
//  Generate Code to Create JSON

//  The following JSON is sent in the request body.

//  {
//    "emailSubject": "Please sign this document",
//    "documents": [
//      {
//        "documentBase64": "JVBERi0xLjMKMyAwIG9iag ... dGFydHhyZWYKNjk5CiUlRU9GCg==",
//        "name": "Lorem Ipsum",
//        "fileExtension": "pdf",
//        "documentId": "1"
//      }
//    ],
//    "recipients": {
//      "signers": [
//        {
//          "email": "joe_sample@example.com",
//          "name": "Joe Sample",
//          "recipientId": "1",
//          "routingOrder": "1",
//          "tabs": {
//            "signHereTabs": [
//              {
//                "documentId": "1",
//                "pageNumber": "1",
//                "recipientId": "1",
//                "tabLabel": "SignHereTab",
//                "xPosition": "195",
//                "yPosition": "147"
//              }
//            ]
//          }
//        }
//      ]
//    },
//    "status": "sent"
//  }

//  Load a PDF to be signed.
CkoBinData *pdfData = [[CkoBinData alloc] init];
success = [pdfData LoadFile: @"qa_data/pdf/helloWorld.pdf"];
if (success == NO) {
    NSLog(@"%@",@"Failed to load local PDF file.");
    return;
}

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json UpdateString: @"emailSubject" value: @"Please sign this document"];
[json UpdateString: @"documents[0].documentBase64" value: [pdfData GetEncoded: @"base64"]];
[json UpdateString: @"documents[0].name" value: @"Lorem Ipsum"];
[json UpdateString: @"documents[0].fileExtension" value: @"pdf"];
[json UpdateString: @"documents[0].documentId" value: @"1"];
[json UpdateString: @"recipients.signers[0].email" value: @"joe_sample@example.com"];
[json UpdateString: @"recipients.signers[0].name" value: @"Joe Sample"];
[json UpdateString: @"recipients.signers[0].recipientId" value: @"1"];
[json UpdateString: @"recipients.signers[0].routingOrder" value: @"1"];
[json UpdateString: @"recipients.signers[0].tabs.signHereTabs[0].documentId" value: @"1"];
[json UpdateString: @"recipients.signers[0].tabs.signHereTabs[0].pageNumber" value: @"1"];
[json UpdateString: @"recipients.signers[0].tabs.signHereTabs[0].recipientId" value: @"1"];
[json UpdateString: @"recipients.signers[0].tabs.signHereTabs[0].tabLabel" value: @"SignHereTab"];
[json UpdateString: @"recipients.signers[0].tabs.signHereTabs[0].xPosition" value: @"195"];
[json UpdateString: @"recipients.signers[0].tabs.signHereTabs[0].yPosition" value: @"147"];
[json UpdateString: @"status" value: @"sent"];

//  Get our previously obtained OAuth2 access token, which should contain JSON like this:
//  {
//    "access_token": "eyJ0eXA....YQyig",
//    "token_type": "Bearer",
//    "refresh_token": "eyJ0eXA....auE3eHKg",
//    "expires_in": 28800
//  }

CkoJsonObject *jsonToken = [[CkoJsonObject alloc] init];
success = [jsonToken LoadFile: @"qa_data/tokens/docusign.json"];

CkoStringBuilder *sbAuth = [[CkoStringBuilder alloc] init];
[sbAuth Append: @"Bearer "];
[sbAuth Append: [jsonToken StringOf: @"access_token"]];

[http SetRequestHeader: @"Authorization" value: [sbAuth GetAsString]];
[http SetRequestHeader: @"Content-Type" value: @"application/json"];

//  Don't forget to modify this line to use your account ID
CkoHttpResponse *resp = [[CkoHttpResponse alloc] init];
success = [http HttpJson: @"POST" url: @"https://demo.docusign.net/restapi/v2.1/accounts/${accountId}/envelopes" json: json contentType: @"application/json" response: resp];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
[resp GetBodySb: sbResponseBody];
CkoJsonObject *jResp = [[CkoJsonObject alloc] init];
[jResp LoadSb: sbResponseBody];
jResp.EmitCompact = NO;

NSLog(@"%@",@"Response Body:");
NSLog(@"%@",[jResp Emit]);

int respStatusCode = [resp.StatusCode intValue];
NSLog(@"%@%d",@"Response Status Code = ",respStatusCode);
if (respStatusCode >= 400) {
    NSLog(@"%@",@"Response Header:");
    NSLog(@"%@",resp.Header);
    NSLog(@"%@",@"Failed.");
    return;
}

//  Sample JSON response:
//  (Sample code for parsing the JSON response is shown below)

//  {
//    "envelopeId": "d51cfdab-22ed-4832-bf68-446c44077ffc",
//    "uri": "/envelopes/d51cfdab-22ed-4832-bf68-446c44077ffc",
//    "statusDateTime": "2018-04-17T16:31:51.8830000Z",
//    "status": "sent"
//  }

//  Sample code for parsing the JSON response...
//  Use the following online tool to generate parsing code from sample JSON:
//  Generate Parsing Code from JSON

NSString *envelopeId = 0;
NSString *uri = 0;
NSString *statusDateTime = 0;
NSString *status = 0;

envelopeId = [jResp StringOf: @"envelopeId"];
uri = [jResp StringOf: @"uri"];
statusDateTime = [jResp StringOf: @"statusDateTime"];
status = [jResp StringOf: @"status"];