(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.

For more information, see https://developers.docusign.com/esign-rest-api/code-examples/quickstart-request-signature-email

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#include <C_CkHttp.h>
#include <C_CkBinData.h>
#include <C_CkJsonObject.h>
#include <C_CkStringBuilder.h>
#include <C_CkHttpResponse.h>

void ChilkatSample(void)
    {
    HCkHttp http;
    BOOL success;
    HCkBinData pdfData;
    HCkJsonObject json;
    HCkJsonObject jsonToken;
    HCkStringBuilder sbAuth;
    HCkHttpResponse resp;
    HCkStringBuilder sbResponseBody;
    HCkJsonObject jResp;
    int respStatusCode;
    const char *envelopeId;
    const char *uri;
    const char *statusDateTime;
    const char *status;

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

    http = CkHttp_Create();

    // 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.
    pdfData = CkBinData_Create();
    success = CkBinData_LoadFile(pdfData,"qa_data/pdf/helloWorld.pdf");
    if (success == FALSE) {
        printf("Failed to load local PDF file.\n");
        CkHttp_Dispose(http);
        CkBinData_Dispose(pdfData);
        return;
    }

    json = CkJsonObject_Create();
    CkJsonObject_UpdateString(json,"emailSubject","Please sign this document");
    CkJsonObject_UpdateString(json,"documents[0].documentBase64",CkBinData_getEncoded(pdfData,"base64"));
    CkJsonObject_UpdateString(json,"documents[0].name","Lorem Ipsum");
    CkJsonObject_UpdateString(json,"documents[0].fileExtension","pdf");
    CkJsonObject_UpdateString(json,"documents[0].documentId","1");
    CkJsonObject_UpdateString(json,"recipients.signers[0].email","joe_sample@example.com");
    CkJsonObject_UpdateString(json,"recipients.signers[0].name","Joe Sample");
    CkJsonObject_UpdateString(json,"recipients.signers[0].recipientId","1");
    CkJsonObject_UpdateString(json,"recipients.signers[0].routingOrder","1");
    CkJsonObject_UpdateString(json,"recipients.signers[0].tabs.signHereTabs[0].documentId","1");
    CkJsonObject_UpdateString(json,"recipients.signers[0].tabs.signHereTabs[0].pageNumber","1");
    CkJsonObject_UpdateString(json,"recipients.signers[0].tabs.signHereTabs[0].recipientId","1");
    CkJsonObject_UpdateString(json,"recipients.signers[0].tabs.signHereTabs[0].tabLabel","SignHereTab");
    CkJsonObject_UpdateString(json,"recipients.signers[0].tabs.signHereTabs[0].xPosition","195");
    CkJsonObject_UpdateString(json,"recipients.signers[0].tabs.signHereTabs[0].yPosition","147");
    CkJsonObject_UpdateString(json,"status","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
    // }

    jsonToken = CkJsonObject_Create();
    success = CkJsonObject_LoadFile(jsonToken,"qa_data/tokens/docusign.json");

    sbAuth = CkStringBuilder_Create();
    CkStringBuilder_Append(sbAuth,"Bearer ");
    CkStringBuilder_Append(sbAuth,CkJsonObject_stringOf(jsonToken,"access_token"));

    CkHttp_SetRequestHeader(http,"Authorization",CkStringBuilder_getAsString(sbAuth));
    CkHttp_SetRequestHeader(http,"Content-Type","application/json");

    // Don't forget to modify this line to use your account ID
    resp = CkHttp_PostJson3(http,"https://demo.docusign.net/restapi/v2.1/accounts/${accountId}/envelopes","application/json",json);
    if (CkHttp_getLastMethodSuccess(http) == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkBinData_Dispose(pdfData);
        CkJsonObject_Dispose(json);
        CkJsonObject_Dispose(jsonToken);
        CkStringBuilder_Dispose(sbAuth);
        return;
    }

    sbResponseBody = CkStringBuilder_Create();
    CkHttpResponse_GetBodySb(resp,sbResponseBody);
    jResp = CkJsonObject_Create();
    CkJsonObject_LoadSb(jResp,sbResponseBody);
    CkJsonObject_putEmitCompact(jResp,FALSE);

    printf("Response Body:\n");
    printf("%s\n",CkJsonObject_emit(jResp));

    respStatusCode = CkHttpResponse_getStatusCode(resp);
    printf("Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        printf("Response Header:\n");
        printf("%s\n",CkHttpResponse_header(resp));
        printf("Failed.\n");
        CkHttpResponse_Dispose(resp);
        CkHttp_Dispose(http);
        CkBinData_Dispose(pdfData);
        CkJsonObject_Dispose(json);
        CkJsonObject_Dispose(jsonToken);
        CkStringBuilder_Dispose(sbAuth);
        CkStringBuilder_Dispose(sbResponseBody);
        CkJsonObject_Dispose(jResp);
        return;
    }

    CkHttpResponse_Dispose(resp);

    // 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

    envelopeId = CkJsonObject_stringOf(jResp,"envelopeId");
    uri = CkJsonObject_stringOf(jResp,"uri");
    statusDateTime = CkJsonObject_stringOf(jResp,"statusDateTime");
    status = CkJsonObject_stringOf(jResp,"status");


    CkHttp_Dispose(http);
    CkBinData_Dispose(pdfData);
    CkJsonObject_Dispose(json);
    CkJsonObject_Dispose(jsonToken);
    CkStringBuilder_Dispose(sbAuth);
    CkStringBuilder_Dispose(sbResponseBody);
    CkJsonObject_Dispose(jResp);

    }