Chilkat Examples

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Unicode C Web API Examples

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(Unicode C) DocuSign Download Envelope Document (PDF)

See more DocuSign Examples

Retrieves the specified document from the envelope. The response body of this method is the PDF file as a byte stream. You can get the file name and document ID from the response's Content-Disposition header.

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

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

void ChilkatSample(void)
    {
    HCkHttpW http;
    BOOL success;
    HCkJsonObjectW jsonToken;
    const wchar_t *url;
    HCkBinDataW bd;
    int respStatusCode;
    HCkMimeW mime;
    const wchar_t *filename;
    HCkStringBuilderW sbPath;

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

    http = CkHttpW_Create();

    // Implements the following HTTP request:
    // GET /restapi/v2.1/accounts/{accountId}/envelopes/{envelopeId}/documents/1

    // Adds the "Authorization: Bearer eyJ0eXAi.....UE8Kl_V8KroQ" header.
    jsonToken = CkJsonObjectW_Create();
    // Load a previously obtained OAuth2 access token.
    success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/docusign.json");
    if (success == FALSE) {
        wprintf(L"%s\n",CkJsonObjectW_lastErrorText(jsonToken));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonToken);
        return;
    }

    CkHttpW_putAuthToken(http,CkJsonObjectW_stringOf(jsonToken,L"access_token"));

    // Use your account ID and a valid envelopeId here:
    CkHttpW_SetUrlVar(http,L"accountId",L"7f3f65ed-5e87-418d-94c1-92499ddc8252");
    CkHttpW_SetUrlVar(http,L"envelopeId",L"90d7e40a-b4bd-4ccd-bf38-c80e37954a13");

    url = L"https://demo.docusign.net/restapi/v2.1/accounts/{$accountId}/envelopes/{$envelopeId}/documents/1";
    bd = CkBinDataW_Create();

    success = CkHttpW_DownloadBd(http,url,bd);
    if (success == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonToken);
        CkBinDataW_Dispose(bd);
        return;
    }

    respStatusCode = CkHttpW_getLastStatus(http);
    wprintf(L"Response Status Code = %d\n",respStatusCode);
    if (respStatusCode != 200) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",CkHttpW_lastResponseHeader(http));
        // The response body contains an error message.
        wprintf(L"%s\n",CkBinDataW_getString(bd,L"utf-8"));
        wprintf(L"Failed.\n");
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonToken);
        CkBinDataW_Dispose(bd);
        return;
    }

    // The response indicated success.
    // Get the filename from the Content-Disposition header and save to a file.
    mime = CkMimeW_Create();
    CkMimeW_LoadMime(mime,CkHttpW_lastResponseHeader(http));

    filename = CkMimeW_getHeaderFieldAttribute(mime,L"Content-Disposition",L"filename");
    wprintf(L"filename = %s\n",filename);

    sbPath = CkStringBuilderW_Create();
    CkStringBuilderW_Append(sbPath,L"C:/aaworkarea/");
    CkStringBuilderW_Append(sbPath,filename);
    success = CkBinDataW_WriteFile(bd,CkStringBuilderW_getAsString(sbPath));
    if (success == FALSE) {
        wprintf(L"Failed to save to output file.\n");
    }
    else {
        wprintf(L"Wrote %s\n",CkStringBuilderW_getAsString(sbPath));
    }



    CkHttpW_Dispose(http);
    CkJsonObjectW_Dispose(jsonToken);
    CkBinDataW_Dispose(bd);
    CkMimeW_Dispose(mime);
    CkStringBuilderW_Dispose(sbPath);

    }

 

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