Visual Basic 6.0

Frame.io - Upload an Asset

See more Frame.io Examples

Upload an asset to Frame.io Visual Basic 6.0

Dim success As Long
success = 0

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

Dim http As New ChilkatHttp

' 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
localFilePath = "qa_data/mp4/rotating_earth.mp4"
Dim fac As New CkFileAccess
Dim fileSize As Long
fileSize = fac.FileSize(localFilePath)

Dim json As New ChilkatJsonObject
success = json.UpdateInt("filesize",fileSize)
success = json.UpdateString("filetype","video/mp4")
success = json.UpdateString("name","rotating_earth7")
success = 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 ChilkatHttpResponse
success = http.HttpJson("POST","https://api.frame.io/v2/assets/039845e8-bffe-4d6b-88d3-c780bae06342/children",json,"application/json",resp)
If (success = 0) Then
    Debug.Print http.LastErrorText
    Exit Sub
End If

Dim sbResponseBody As New ChilkatStringBuilder
success = resp.GetBodySb(sbResponseBody)
Dim jResp As New ChilkatJsonObject
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = 0

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

Dim respStatusCode As Long
respStatusCode = resp.StatusCode
Debug.Print "Response Status Code = " & respStatusCode
If (respStatusCode >= 400) Then
    Debug.Print "Response Header:"
    Debug.Print resp.Header
    Debug.Print "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 Long
numChunks = jResp.SizeOfArray("upload_urls")
Dim sizePerChunk As Long
sizePerChunk = (fileSize + numChunks - 1) / numChunks

Debug.Print "numChunks = " & numChunks
Debug.Print "sizePerChunk = " & sizePerChunk

success = fac.OpenForRead(localFilePath)
If (success = 0) Then
    Debug.Print fac.LastErrorText
    Exit Sub
End If

Dim bd As New ChilkatBinData
Dim httpForUpload As New ChilkatHttp

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

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

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

    ' Send the chunk in a PUT:

    Debug.Print "PUT chunk " & (i + 1)
    Debug.Print "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 = 0) Then
        Debug.Print httpForUpload.LastErrorText
        Exit Sub
    End If

    Debug.Print "response status: " & resp.StatusCode

    i = i + 1
Loop

fac.FileClose 

Debug.Print "File uploaded."