VB.NET

Yousign Procedure Creation Basic Mode Upload File

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Demonstrates the 1st step of Yousign procedure creation, which is to upload a PDF file. VB.NET

Dim success As Boolean = False

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

Dim http As New Chilkat.Http

' Implements the following CURL command:

' curl --location --request POST 'https://staging-api.yousign.com/files' \
' --header 'Authorization: Bearer YOUR_API_KEY' \
' --header 'Content-Type: application/json' \
' --data-raw '{
'     "name": "The best name for my file.pdf",
'     "content": "JVBERi0..." }'

' Load a PDF file to be uploaded.
Dim pdfData As New Chilkat.BinData
success = pdfData.LoadFile("qa_data/pdf/helloWorld.pdf")
If (success = False) Then
    Debug.WriteLine("Failed to load PDF local file.")
    Exit Sub
End If


' Use the following online tool to generate HTTP code from a CURL command
' Convert a cURL Command to HTTP Source Code

' Use this online tool to generate code from sample JSON:
' Generate Code to Create JSON

' The following JSON is sent in the request body.

' {
'   "name": "The best name for my file.pdf",
'   "content": "JVBERi0..."
' }

Dim json As New Chilkat.JsonObject
json.UpdateString("name","helloWorld.pdf")
json.UpdateString("content",pdfData.GetEncoded("base64"))

' Adds the "Authorization: Bearer YOUR_API_KEY" header.
http.AuthToken = "YOUR_API_KEY"

Dim resp As New Chilkat.HttpResponse
success = http.HttpJson("POST","https://staging-api.yousign.com/files",json,"application/json",resp)
If (success = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Dim sbResponseBody As New Chilkat.StringBuilder
resp.GetBodySb(sbResponseBody)
Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

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

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)

' {
'   "id": "/files/XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
'   "name": "The best name for my file.pdf",
'   "type": "signable",
'   "contentType": "application/pdf",
'   "description": null,
'   "createdAt": "2018-12-01T11:36:20+01:00",
'   "updatedAt": "2018-12-01T11:36:20+01:00",
'   "sha256": "bb57ae2b2ca6ad0133a699350d1a6f6c8cdfde3cf872cf526585d306e4675cc2",
'   "metadata": [
'   ],
'   "workspace": "/workspaces/XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
'   "creator": null,
'   "protected": false,
'   "position": 0,
'   "parent": null
' }

' 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 id As String = jResp.StringOf("id")
Dim name As String = jResp.StringOf("name")
Dim v_type As String = jResp.StringOf("type")
Dim contentType As String = jResp.StringOf("contentType")
Dim description As String = jResp.StringOf("description")
Dim createdAt As String = jResp.StringOf("createdAt")
Dim updatedAt As String = jResp.StringOf("updatedAt")
Dim sha256 As String = jResp.StringOf("sha256")
Dim workspace As String = jResp.StringOf("workspace")
Dim creator As String = jResp.StringOf("creator")
Dim v_protected As Boolean = jResp.BoolOf("protected")
Dim position As Integer = jResp.IntOf("position")
Dim parent As String = jResp.StringOf("parent")
Dim i As Integer = 0
Dim count_i As Integer = jResp.SizeOfArray("metadata")
While i < count_i
    jResp.I = i
    i = i + 1
End While