Chilkat Examples

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Unicode C Web API Examples

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(Unicode C) DocuSign: Requesting a Signature via Email (Remote Signing)

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

Chilkat C/C++ Library Downloads

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#include <C_CkHttpW.h>
#include <C_CkBinDataW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkHttpResponseW.h>

void ChilkatSample(void)
    {
    HCkHttpW http;
    BOOL success;
    HCkBinDataW pdfData;
    HCkJsonObjectW json;
    HCkJsonObjectW jsonToken;
    HCkStringBuilderW sbAuth;
    HCkHttpResponseW resp;
    HCkStringBuilderW sbResponseBody;
    HCkJsonObjectW jResp;
    int respStatusCode;
    const wchar_t *envelopeId;
    const wchar_t *uri;
    const wchar_t *statusDateTime;
    const wchar_t *status;

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

    http = CkHttpW_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 = CkBinDataW_Create();
    success = CkBinDataW_LoadFile(pdfData,L"qa_data/pdf/helloWorld.pdf");
    if (success == FALSE) {
        wprintf(L"Failed to load local PDF file.\n");
        CkHttpW_Dispose(http);
        CkBinDataW_Dispose(pdfData);
        return;
    }

    json = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateString(json,L"emailSubject",L"Please sign this document");
    CkJsonObjectW_UpdateString(json,L"documents[0].documentBase64",CkBinDataW_getEncoded(pdfData,L"base64"));
    CkJsonObjectW_UpdateString(json,L"documents[0].name",L"Lorem Ipsum");
    CkJsonObjectW_UpdateString(json,L"documents[0].fileExtension",L"pdf");
    CkJsonObjectW_UpdateString(json,L"documents[0].documentId",L"1");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].email",L"joe_sample@example.com");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].name",L"Joe Sample");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].recipientId",L"1");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].routingOrder",L"1");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].tabs.signHereTabs[0].documentId",L"1");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].tabs.signHereTabs[0].pageNumber",L"1");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].tabs.signHereTabs[0].recipientId",L"1");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].tabs.signHereTabs[0].tabLabel",L"SignHereTab");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].tabs.signHereTabs[0].xPosition",L"195");
    CkJsonObjectW_UpdateString(json,L"recipients.signers[0].tabs.signHereTabs[0].yPosition",L"147");
    CkJsonObjectW_UpdateString(json,L"status",L"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 = CkJsonObjectW_Create();
    success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/docusign.json");

    sbAuth = CkStringBuilderW_Create();
    CkStringBuilderW_Append(sbAuth,L"Bearer ");
    CkStringBuilderW_Append(sbAuth,CkJsonObjectW_stringOf(jsonToken,L"access_token"));

    CkHttpW_SetRequestHeader(http,L"Authorization",CkStringBuilderW_getAsString(sbAuth));
    CkHttpW_SetRequestHeader(http,L"Content-Type",L"application/json");

    // Don't forget to modify this line to use your account ID
    resp = CkHttpW_PostJson3(http,L"https://demo.docusign.net/restapi/v2.1/accounts/${accountId}/envelopes",L"application/json",json);
    if (CkHttpW_getLastMethodSuccess(http) == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkBinDataW_Dispose(pdfData);
        CkJsonObjectW_Dispose(json);
        CkJsonObjectW_Dispose(jsonToken);
        CkStringBuilderW_Dispose(sbAuth);
        return;
    }

    sbResponseBody = CkStringBuilderW_Create();
    CkHttpResponseW_GetBodySb(resp,sbResponseBody);
    jResp = CkJsonObjectW_Create();
    CkJsonObjectW_LoadSb(jResp,sbResponseBody);
    CkJsonObjectW_putEmitCompact(jResp,FALSE);

    wprintf(L"Response Body:\n");
    wprintf(L"%s\n",CkJsonObjectW_emit(jResp));

    respStatusCode = CkHttpResponseW_getStatusCode(resp);
    wprintf(L"Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",CkHttpResponseW_header(resp));
        wprintf(L"Failed.\n");
        CkHttpResponseW_Dispose(resp);
        CkHttpW_Dispose(http);
        CkBinDataW_Dispose(pdfData);
        CkJsonObjectW_Dispose(json);
        CkJsonObjectW_Dispose(jsonToken);
        CkStringBuilderW_Dispose(sbAuth);
        CkStringBuilderW_Dispose(sbResponseBody);
        CkJsonObjectW_Dispose(jResp);
        return;
    }

    CkHttpResponseW_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 = CkJsonObjectW_stringOf(jResp,L"envelopeId");
    uri = CkJsonObjectW_stringOf(jResp,L"uri");
    statusDateTime = CkJsonObjectW_stringOf(jResp,L"statusDateTime");
    status = CkJsonObjectW_stringOf(jResp,L"status");


    CkHttpW_Dispose(http);
    CkBinDataW_Dispose(pdfData);
    CkJsonObjectW_Dispose(json);
    CkJsonObjectW_Dispose(jsonToken);
    CkStringBuilderW_Dispose(sbAuth);
    CkStringBuilderW_Dispose(sbResponseBody);
    CkJsonObjectW_Dispose(jResp);

    }

 

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