Chilkat Examples

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PureBasic Web API Examples

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(PureBasic) Frame.io - Upload an Asset

Upload an asset to Frame.io

For more information, see https://docs.frame.io/docs/uploading-assets

Chilkat PureBasic Module Download

Chilkat PureBasic Module

IncludeFile "CkJsonObject.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkFileAccess.pb"
IncludeFile "CkStringBuilder.pb"
IncludeFile "CkHttpResponse.pb"
IncludeFile "CkBinData.pb"

Procedure ChilkatExample()

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

    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success.i

    ; 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"
    ; }

    localFilePath.s = "qa_data/mp4/rotating_earth.mp4"
    fac.i = CkFileAccess::ckCreate()
    If fac.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    fileSize.i = CkFileAccess::ckFileSize(fac,localFilePath)

    json.i = CkJsonObject::ckCreate()
    If json.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckUpdateInt(json,"filesize",fileSize)
    CkJsonObject::ckUpdateString(json,"filetype","video/mp4")
    CkJsonObject::ckUpdateString(json,"name","rotating_earth7")
    CkJsonObject::ckUpdateString(json,"type","file")

    CkHttp::ckSetRequestHeader(http,"content-type","application/json")
    ; Adds the "Authorization: Bearer <FRAME_IO_DEV_TOKEN>" header.
    CkHttp::setCkAuthToken(http, "<FRAME_IO_DEV_TOKEN>")

    ; Uploading to asset ID: 039845e8-bffe-4d6b-88d3-c780bae06342
    resp.i = CkHttp::ckPostJson3(http,"https://api.frame.io/v2/assets/039845e8-bffe-4d6b-88d3-c780bae06342/children","application/json",json)
    If CkHttp::ckLastMethodSuccess(http) = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkFileAccess::ckDispose(fac)
        CkJsonObject::ckDispose(json)
        ProcedureReturn
    EndIf

    sbResponseBody.i = CkStringBuilder::ckCreate()
    If sbResponseBody.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttpResponse::ckGetBodySb(resp,sbResponseBody)
    jResp.i = CkJsonObject::ckCreate()
    If jResp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckLoadSb(jResp,sbResponseBody)
    CkJsonObject::setCkEmitCompact(jResp, 0)

    Debug "Response Body:"
    Debug CkJsonObject::ckEmit(jResp)

    respStatusCode.i = CkHttpResponse::ckStatusCode(resp)
    Debug "Response Status Code = " + Str(respStatusCode)
    If respStatusCode >= 400
        Debug "Response Header:"
        Debug CkHttpResponse::ckHeader(resp)
        Debug "Failed."
        CkHttpResponse::ckDispose(resp)

        CkHttp::ckDispose(http)
        CkFileAccess::ckDispose(fac)
        CkJsonObject::ckDispose(json)
        CkStringBuilder::ckDispose(sbResponseBody)
        CkJsonObject::ckDispose(jResp)
        ProcedureReturn
    EndIf

    CkHttpResponse::ckDispose(resp)

    ; 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.
    numChunks.i = CkJsonObject::ckSizeOfArray(jResp,"upload_urls")
    sizePerChunk.i = (fileSize + numChunks - 1) / numChunks

    Debug "numChunks = " + Str(numChunks)
    Debug "sizePerChunk = " + Str(sizePerChunk)

    success = CkFileAccess::ckOpenForRead(fac,localFilePath)
    If success = 0
        Debug CkFileAccess::ckLastErrorText(fac)
        CkHttp::ckDispose(http)
        CkFileAccess::ckDispose(fac)
        CkJsonObject::ckDispose(json)
        CkStringBuilder::ckDispose(sbResponseBody)
        CkJsonObject::ckDispose(jResp)
        ProcedureReturn
    EndIf

    bd.i = CkBinData::ckCreate()
    If bd.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    httpForUpload.i = CkHttp::ckCreate()
    If httpForUpload.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttp::ckSetRequestHeader(httpForUpload,"x-amz-acl","private")

    i.i = 0
    While (i < numChunks)
        CkBinData::ckClear(bd)
        success = CkFileAccess::ckReadBlockBd(fac,i,sizePerChunk,bd)

        CkJsonObject::setCkI(jResp, i)
        uploadUrl.s = CkJsonObject::ckStringOf(jResp,"upload_urls[i]")

        ; Send the chunk in a PUT:

        Debug "PUT chunk " + Str(i + 1)
        Debug "URL: " + uploadUrl

        ; PUT https://frameio-uploads-production.s3/etc/etc
        ; Content-Type: video/mp4
        ; x-amz-acl: private

        resp = CkHttp::ckPBinaryBd(httpForUpload,"PUT",uploadUrl,bd,"video/mp4",0,0)
        If CkHttp::ckLastMethodSuccess(httpForUpload) = 0
            Debug CkHttp::ckLastErrorText(httpForUpload)
            CkHttp::ckDispose(http)
            CkFileAccess::ckDispose(fac)
            CkJsonObject::ckDispose(json)
            CkStringBuilder::ckDispose(sbResponseBody)
            CkJsonObject::ckDispose(jResp)
            CkBinData::ckDispose(bd)
            CkHttp::ckDispose(httpForUpload)
            ProcedureReturn
        EndIf

        Debug "response status: " + Str(CkHttpResponse::ckStatusCode(resp))

        CkHttpResponse::ckDispose(resp)

        i = i + 1
    Wend

    CkFileAccess::ckFileClose(fac)

    Debug "File uploaded."


    CkHttp::ckDispose(http)
    CkFileAccess::ckDispose(fac)
    CkJsonObject::ckDispose(json)
    CkStringBuilder::ckDispose(sbResponseBody)
    CkJsonObject::ckDispose(jResp)
    CkBinData::ckDispose(bd)
    CkHttp::ckDispose(httpForUpload)


    ProcedureReturn
EndProcedure

 

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