(VB.NET UWP/WinRT) DocuSign Add Documents to a Draft Envelope

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Demonstrates how to add one or more additional documents to a DocuSign draft envelope.

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

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

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

Dim http As New Chilkat.Http

' Load a previously obtained OAuth2 access token.
Dim jsonToken As New Chilkat.JsonObject
Dim success As Boolean = jsonToken.LoadFile("qa_data/tokens/docusign.json")
If (success = False) Then
    Debug.WriteLine(jsonToken.LastErrorText)
    Exit Sub
End If


' Adds the "Authorization: Bearer eyJ0eXAi.....UE8Kl_V8KroQ" header.
http.AuthToken = jsonToken.StringOf("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>/documents HTTP/1.1
' Expect: 100-continue
' Accept: application/json
' Cache-Control: no-cache
' Authorization: Bearer eyJ0eX...
' Content-Length: ...
' Content-Type: application/json
' 
' {
' 	"documents": [
' 		{
' 		"documentId": "1",
' 		"name": "hello.pdf",
' 		"pages": "1",
' 		"documentBase64": "<insert base64 content here>"
' 		},
' 		{
' 		"documentId": "2",
' 		"name": "hello2.pdf",
' 		"pages": "1",
' 		"documentBase64": "<insert base64 content here>"
' 		}
' 	]
' }

Dim bd1 As New Chilkat.BinData
success = bd1.LoadFile("qa_data/pdf/hello.pdf")
Dim bd2 As New Chilkat.BinData
success = bd2.LoadFile("qa_data/pdf/hello2.pdf")

Dim json As New Chilkat.JsonObject
Dim i As Integer = 0
json.I = i
json.UpdateString("documents[i].documentId","1")
json.UpdateString("documents[i].name","hello.pdf")
json.UpdateString("documents[i].pages","1")
json.UpdateString("documents[i].documentBase64",bd1.GetEncoded("base64"))
i = i + 1
json.I = i
json.UpdateString("documents[i].documentId","2")
json.UpdateString("documents[i].name","hello2.pdf")
json.UpdateString("documents[i].pages","1")
json.UpdateString("documents[i].documentBase64",bd2.GetEncoded("base64"))

Dim sbJson As New Chilkat.StringBuilder
json.EmitCompact = False
json.EmitSb(sbJson)

http.SetRequestHeader("Expect","100-continue")
http.SetRequestHeader("Cache-Control","no-cache")
http.SetRequestHeader("Accept","application/json")

' Use your own account ID here.
http.SetUrlVar("accountId","7f3f65ed-5e87-418d-94c1-92499ddc8252")
' Use the envelope ID returned by DocuSign when creating the draft envelope).
http.SetUrlVar("envelopeId","da9fb811-e6a4-48c0-a9fb-81ed18b989af")

Dim url As String = "https://demo.docusign.net/restapi/v2.1/accounts/{$accountId}/envelopes/{$envelopeId}/documents"
Dim resp As Chilkat.HttpResponse = Await http.PTextSbAsync("PUT",url,sbJson,"utf-8","application/json",False,False)
If (http.LastMethodSuccess = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If



Dim jResp As New Chilkat.JsonObject
jResp.Load(resp.BodyStr)
jResp.EmitCompact = False

Debug.WriteLine("Response Body:")
Debug.WriteLine(jResp.Emit())

' If you get a 401 response status code, it's likely you need to refresh the DocuSign OAuth2 token).
Dim respStatusCode As Integer = resp.StatusCode
Debug.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode >= 400) Then
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(resp.Header)
    Debug.WriteLine("Failed.")

    Exit Sub
End If



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

' {
'   "envelopeId": "da9fb811-e6a4-48c0-a9fb-81ed18b989af",
'   "envelopeDocuments": [
'     {
'       "documentId": "1",
'       "documentIdGuid": "38e919fc-0a77-4b0c-9da0-e3530f4e6fc7",
'       "name": "hello.pdf",
'       "type": "content",
'       "uri": "/envelopes/da9fb811-e6a4-48c0-a9fb-81ed18b989af/documents/1",
'       "order": "3",
'       "containsPdfFormFields": "false",
'       "templateRequired": "false",
'       "authoritativeCopy": "false"
'     },
'     {
'       "documentId": "2",
'       "documentIdGuid": "2cbd0fcc-c1ca-4a3a-b8b5-fe252dd89731",
'       "name": "hello2.pdf",
'       "type": "content",
'       "uri": "/envelopes/da9fb811-e6a4-48c0-a9fb-81ed18b989af/documents/2",
'       "order": "4",
'       "containsPdfFormFields": "false",
'       "templateRequired": "false",
'       "authoritativeCopy": "false"
'     }
'   ]
' }

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

Dim documentId As String
Dim documentIdGuid As String
Dim name As String
Dim v_type As String
Dim uri As String
Dim order As String
Dim containsPdfFormFields As String
Dim templateRequired As String
Dim authoritativeCopy As String

Dim envelopeId As String = jResp.StringOf("envelopeId")
i = 0
Dim count_i As Integer = jResp.SizeOfArray("envelopeDocuments")
While i < count_i
    jResp.I = i
    documentId = jResp.StringOf("envelopeDocuments[i].documentId")
    documentIdGuid = jResp.StringOf("envelopeDocuments[i].documentIdGuid")
    name = jResp.StringOf("envelopeDocuments[i].name")
    v_type = jResp.StringOf("envelopeDocuments[i].type")
    uri = jResp.StringOf("envelopeDocuments[i].uri")
    order = jResp.StringOf("envelopeDocuments[i].order")
    containsPdfFormFields = jResp.StringOf("envelopeDocuments[i].containsPdfFormFields")
    templateRequired = jResp.StringOf("envelopeDocuments[i].templateRequired")
    authoritativeCopy = jResp.StringOf("envelopeDocuments[i].authoritativeCopy")
    i = i + 1
End While