(Unicode C++) DocuSign Send a Draft Envelope

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Demonstrates how to send a DocuSign draft envelope.

For more information, see https://developers.docusign.com/docs/esign-rest-api/reference/envelopes/envelopes/update/

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#include <CkHttpW.h>
#include <CkJsonObjectW.h>
#include <CkStringBuilderW.h>
#include <CkHttpResponseW.h>

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

    CkHttpW http;

    // Load a previously obtained OAuth2 access token.
    CkJsonObjectW jsonToken;
    bool success = jsonToken.LoadFile(L"qa_data/tokens/docusign.json");
    if (success == false) {
        wprintf(L"%s\n",jsonToken.lastErrorText());
        return;
    }

    // Adds the "Authorization: Bearer eyJ0eXAi.....UE8Kl_V8KroQ" header.
    http.put_AuthToken(jsonToken.stringOf(L"access_token"));

    // Send the following request.
    // Make sure to use your own account ID (obtained from Get Docusign User Account Information)

    // PUT https://demo.docusign.net/restapi/v2.1/accounts/<account ID>/envelopes/<envelope ID> HTTP/1.1
    // Accept: application/json
    // Cache-Control: no-cache
    // Authorization: Bearer eyJ0eX...
    // Content-Length: ...
    // Content-Type: application/json
    // 
    // {
    //   "status": "sent"
    // }

    CkJsonObjectW json;
    json.UpdateString(L"status",L"sent");

    CkStringBuilderW sbJson;
    json.put_EmitCompact(false);
    json.EmitSb(sbJson);

    http.SetRequestHeader(L"Cache-Control",L"no-cache");
    http.SetRequestHeader(L"Accept",L"application/json");

    // Use your own account ID here.
    http.SetUrlVar(L"accountId",L"7f3f65ed-5e87-418d-94c1-92499ddc8252");
    // Use the envelope ID returned by DocuSign when creating the draft envelope).
    http.SetUrlVar(L"envelopeId",L"cee4191c-f94e-4089-9d7c-8033685cbc1a");

    const wchar_t *url = L"https://demo.docusign.net/restapi/v2.1/accounts/{$accountId}/envelopes/{$envelopeId}";
    CkHttpResponseW *resp = http.PTextSb(L"PUT",url,sbJson,L"utf-8",L"application/json",false,false);
    if (http.get_LastMethodSuccess() == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    CkJsonObjectW jResp;
    jResp.Load(resp->bodyStr());
    jResp.put_EmitCompact(false);

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

    // If you get a 401 response status code, it's likely you need to refresh the DocuSign OAuth2 token).
    int respStatusCode = resp->get_StatusCode();
    wprintf(L"Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",resp->header());
        wprintf(L"Failed.\n");
        delete resp;
        return;
    }

    delete resp;

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

    // If the envelope you're trying to send is not yet completed, you'll get an error such as this:
    // {
    //   "errorCode": "ENVELOPE_IS_INCOMPLETE",
    //   "message": "The Envelope is not Complete. A Complete Envelope Requires Documents, Recipients, Tabs, and a Subject Line."
    // }

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