VB.NET

Frame.io - Upload an Asset

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Upload an asset to Frame.io 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 --request POST \
'   --url https://api.frame.io/v2/assets/<ASSET_ID>/children \
'   --header 'authorization: Bearer <FRAME_IO_DEV_TOKEN>' \
'   --header 'content-type: application/json' \
'   --data '{"filesize":1570024 ,"filetype":"video/mp4","name":"rotating_earth","type":"file"}'

' 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.

' {
'   "filesize": 1570024,
'   "filetype": "video/mp4",
'   "name": "rotating_earth",
'   "type": "file"
' }

Dim localFilePath As String = "qa_data/mp4/rotating_earth.mp4"
Dim fac As New Chilkat.FileAccess
Dim fileSize As Integer = fac.FileSize(localFilePath)

Dim json As New Chilkat.JsonObject
json.UpdateInt("filesize",fileSize)
json.UpdateString("filetype","video/mp4")
json.UpdateString("name","rotating_earth7")
json.UpdateString("type","file")

http.SetRequestHeader("content-type","application/json")
' Adds the "Authorization: Bearer <FRAME_IO_DEV_TOKEN>" header.
http.AuthToken = "<FRAME_IO_DEV_TOKEN>"

' Uploading to asset ID: 039845e8-bffe-4d6b-88d3-c780bae06342
Dim resp As New Chilkat.HttpResponse
success = http.HttpJson("POST","https://api.frame.io/v2/assets/039845e8-bffe-4d6b-88d3-c780bae06342/children",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


' Upload in chunks to the pre-signed S3 upload URLs.
' There are ways to do this in parallel, but for simplicity we'll show how to upload
' one chunk after another.
Dim numChunks As Integer = jResp.SizeOfArray("upload_urls")
Dim sizePerChunk As Integer = (fileSize + numChunks - 1) / numChunks

Debug.WriteLine("numChunks = " & numChunks)
Debug.WriteLine("sizePerChunk = " & sizePerChunk)

success = fac.OpenForRead(localFilePath)
If (success = False) Then
    Debug.WriteLine(fac.LastErrorText)
    Exit Sub
End If


Dim bd As New Chilkat.BinData
Dim httpForUpload As New Chilkat.Http

httpForUpload.SetRequestHeader("x-amz-acl","private")

Dim i As Integer = 0
While (i < numChunks)
    bd.Clear()
    success = fac.ReadBlockBd(i,sizePerChunk,bd)

    jResp.I = i
    Dim uploadUrl As String = jResp.StringOf("upload_urls[i]")

    ' Send the chunk in a PUT:

    Debug.WriteLine("PUT chunk " & (i + 1))
    Debug.WriteLine("URL: " & uploadUrl)

    ' PUT https://frameio-uploads-production.s3/etc/etc
    ' Content-Type: video/mp4
    ' x-amz-acl: private
    success = httpForUpload.HttpBd("PUT",uploadUrl,bd,"video/mp4",resp)
    If (success = False) Then
        Debug.WriteLine(httpForUpload.LastErrorText)
        Exit Sub
    End If


    Debug.WriteLine("response status: " & resp.StatusCode)


    i = i + 1
End While

fac.FileClose()

Debug.WriteLine("File uploaded.")