(Node.js) DocuSign Download Envelope Document (PDF)

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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/

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

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

    var http = new chilkat.Http();
    var success;

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

    // Adds the "Authorization: Bearer eyJ0eXAi.....UE8Kl_V8KroQ" header.
    var jsonToken = new chilkat.JsonObject();
    // Load a previously obtained OAuth2 access token.
    success = jsonToken.LoadFile("qa_data/tokens/docusign.json");
    if (success == false) {
        console.log(jsonToken.LastErrorText);
        return;
    }

    http.AuthToken = jsonToken.StringOf("access_token");

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

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

    success = http.DownloadBd(url,bd);
    if (success == false) {
        console.log(http.LastErrorText);
        return;
    }

    var respStatusCode = http.LastStatus;
    console.log("Response Status Code = " + respStatusCode);
    if (respStatusCode !== 200) {
        console.log("Response Header:");
        console.log(http.LastResponseHeader);
        // The response body contains an error message.
        console.log(bd.GetString("utf-8"));
        console.log("Failed.");
        return;
    }

    // The response indicated success.
    // Get the filename from the Content-Disposition header and save to a file.
    var mime = new chilkat.Mime();
    mime.LoadMime(http.LastResponseHeader);

    var filename = mime.GetHeaderFieldAttribute("Content-Disposition","filename");
    console.log("filename = " + filename);

    var sbPath = new chilkat.StringBuilder();
    sbPath.Append("C:/aaworkarea/");
    sbPath.Append(filename);
    success = bd.WriteFile(sbPath.GetAsString());
    if (success == false) {
        console.log("Failed to save to output file.");
    }
    else {
        console.log("Wrote " + sbPath.GetAsString());
    }


}

chilkatExample();