Sample code for 30+ languages & platforms
PowerBuilder Requires Chilkat v11.7.0+

Box: Upload a File from BinData

See more Box Examples

Run the reusable setup once per HttpCurl object, then select names and execute the operation. The setup is repeated here only to make this published example independently runnable. Resolve documents by name using HttpCurl, then upload a small local PDF from BinData with Rest. The transfer is explicit after dependency resolution; no ID is entered by the caller.

See the Box API guide for setup and the complete workflow.

Chilkat PowerBuilder Downloads

PowerBuilder
integer li_rc
long li_Success
oleobject loo_Curl
oleobject loo_SetupCommand
long li_SetupReplacements
string ls_ParentName
string ls_FolderName
oleobject loo_AuthorizedCommand1
long li_HeaderReplacement1
oleobject loo_Data
oleobject loo_Rest
oleobject loo_Oauth2
oleobject loo_Attributes
string ls_ResponseBody
oleobject loo_Result

li_Success = 0

//  Requires Chilkat 11.7.0 or later and a previously unlocked Chilkat bundle.
//  See Global Unlock Sample.
//  Guide: Box API Guide.

li_Success = 0

//  BEGIN ONE-TIME SETUP
//  This block is repeated so each published example can run on its own.
//  In an application, run the setup example once and pass the SAME curl object
//  to operation code below. Do not recreate it for every operation.
//  See Reusable Box HttpCurl Setup.
loo_Curl = create oleobject
li_rc = loo_Curl.ConnectToNewObject("Chilkat.HttpCurl")
if li_rc < 0 then
    destroy loo_Curl
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_Curl.SetVar("access_token","BOX_ACCESS_TOKEN")
loo_Curl.SetVar("parent_name","/")
//  Box's fixed root ID is an implementation detail; callers supply names.
loo_Curl.SetVar("parent_id","0")
loo_SetupCommand = create oleobject
li_rc = loo_SetupCommand.ConnectToNewObject("Chilkat.StringBuilder")

//  Register findParent; registration sends no request.
loo_SetupCommand.SetString("curl -X GET ~"https://api.box.com/2.0/folders/0/items?limit=1000&fields=id,type,name~" -H ~"Authorization: Bearer ACCESS_TOKEN~"")
li_SetupReplacements = loo_SetupCommand.Replace("ACCESS_TOKEN",loo_Curl.GetVar("access_token"))
li_Success = loo_Curl.AddFunction("findParent",loo_SetupCommand.GetAsString())
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

//  Register findFolder; registration sends no request.
loo_SetupCommand.SetString("curl -X GET ~"https://api.box.com/2.0/folders/{{parent_id}}/items?limit=1000&fields=id,type,name~" -H ~"Authorization: Bearer ACCESS_TOKEN~"")
li_SetupReplacements = loo_SetupCommand.Replace("ACCESS_TOKEN",loo_Curl.GetVar("access_token"))
li_Success = loo_Curl.AddFunction("findFolder",loo_SetupCommand.GetAsString())
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

//  Register findFile; registration sends no request.
loo_SetupCommand.SetString("curl -X GET ~"https://api.box.com/2.0/folders/{{folder_id}}/items?limit=1000&fields=id,type,name~" -H ~"Authorization: Bearer ACCESS_TOKEN~"")
li_SetupReplacements = loo_SetupCommand.Replace("ACCESS_TOKEN",loo_Curl.GetVar("access_token"))
li_Success = loo_Curl.AddFunction("findFile",loo_SetupCommand.GetAsString())
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

//  Register findDestination; registration sends no request.
loo_SetupCommand.SetString("curl -X GET ~"https://api.box.com/2.0/folders/0/items?limit=1000&fields=id,type,name~" -H ~"Authorization: Bearer ACCESS_TOKEN~"")
li_SetupReplacements = loo_SetupCommand.Replace("ACCESS_TOKEN",loo_Curl.GetVar("access_token"))
li_Success = loo_Curl.AddFunction("findDestination",loo_SetupCommand.GetAsString())
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

//  Register getFileDetails; registration sends no request.
loo_SetupCommand.SetString("curl -X GET ~"https://api.box.com/2.0/files/{{file_id}}?fields=id,sha1,file_version~" -H ~"Authorization: Bearer ACCESS_TOKEN~"")
li_SetupReplacements = loo_SetupCommand.Replace("ACCESS_TOKEN",loo_Curl.GetVar("access_token"))
li_Success = loo_Curl.AddFunction("getFileDetails",loo_SetupCommand.GetAsString())
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

//  Register getEnterprise; registration sends no request.
loo_SetupCommand.SetString("curl -X GET ~"https://api.box.com/2.0/users/me?fields=enterprise~" -H ~"Authorization: Bearer ACCESS_TOKEN~"")
li_SetupReplacements = loo_SetupCommand.Replace("ACCESS_TOKEN",loo_Curl.GetVar("access_token"))
li_Success = loo_Curl.AddFunction("getEnterprise",loo_SetupCommand.GetAsString())
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

//  Register output rules once. Chilkat 11.7.0 evaluates {{name}} variables
//  when extracting each output, using the current value at that time.
li_Success = loo_Curl.AddOutput2("findParent","entries","name","{{parent_name}}",1,"id","parent_id")
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

li_Success = loo_Curl.AddOutput2("findFolder","entries","name","{{folder_name}}",1,"id","folder_id")
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

li_Success = loo_Curl.AddOutput2("findFile","entries","name","{{file_name}}",1,"id","file_id")
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

li_Success = loo_Curl.AddOutput2("findDestination","entries","name","{{destination_name}}",1,"id","destination_id")
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

li_Success = loo_Curl.AddOutput("getFileDetails","file_version.id","file_version_id")
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

li_Success = loo_Curl.AddOutput("getFileDetails","sha1","file_sha1")
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

li_Success = loo_Curl.AddOutput("getEnterprise","enterprise.id","enterprise_id")
if li_Success <> 1 then
    Write-Debug loo_Curl.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    return
end if

//  END ONE-TIME SETUP
//  The name lookups below assume each listing fits in one page (1000 items).
//  Parent and destination names select root children; folder_name selects a child
//  of parent_name. "/" selects the root parent. These are not arbitrary paths.

//  BEGIN OPERATION -- keep the configured object when reusing it.
//  Inputs are names. Retain cached IDs when the selected names have not changed.
ls_ParentName = "/"
ls_FolderName = "documents"
if (loo_Curl.GetVar("parent_name") <> ls_ParentName) OR ((ls_ParentName = "/") AND (loo_Curl.VarDefined("parent_id") = 0)) then
    loo_Curl.SetVar("parent_name",ls_ParentName)
    loo_Curl.ClearVar("parent_id")
    loo_Curl.ClearVar("folder_id")
    loo_Curl.ClearVar("file_id")
    loo_Curl.ClearVar("file_version_id")
    loo_Curl.ClearVar("file_sha1")
    if ls_ParentName = "/" then
        loo_Curl.SetVar("parent_id","0")
    end if

end if

if loo_Curl.GetVar("folder_name") <> ls_FolderName then
    loo_Curl.SetVar("folder_name",ls_FolderName)
    loo_Curl.ClearVar("folder_id")
    loo_Curl.ClearVar("file_id")
    loo_Curl.ClearVar("file_version_id")
    loo_Curl.ClearVar("file_sha1")
end if

//  Resolve the named destination first. HttpCurl does not expand variables
//  inside multipart -F attributes in the tested build, so this upload is two phases.
loo_Curl.ClearTargetOutput("*")
loo_AuthorizedCommand1 = create oleobject
li_rc = loo_AuthorizedCommand1.ConnectToNewObject("Chilkat.StringBuilder")

loo_AuthorizedCommand1.SetString("curl -X GET ~"https://api.box.com/2.0/folders/{{folder_id}}?fields=id~" -H ~"Authorization: Bearer {{access_token}}~"")
li_HeaderReplacement1 = loo_AuthorizedCommand1.Replace("{{access_token}}",loo_Curl.GetVar("access_token"))
li_Success = loo_Curl.DoYourThing(loo_AuthorizedCommand1.GetAsString())
if (li_Success <> 1) OR (loo_Curl.StatusCode <> 200) then
    Write-Debug "Box request failed. HTTP status: " + string(loo_Curl.StatusCode)
    Write-Debug "Failure reason: " + string(loo_Curl.FailReason)
    Write-Debug loo_Curl.ResponseBodyStr
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    return
end if

loo_Data = create oleobject
li_rc = loo_Data.ConnectToNewObject("Chilkat.BinData")

li_Success = loo_Data.LoadFile("qa_data/pdf/invoice.pdf")
if li_Success <> 1 then
    Write-Debug loo_Data.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    return
end if

loo_Rest = create oleobject
li_rc = loo_Rest.ConnectToNewObject("Chilkat.Rest")

loo_Oauth2 = create oleobject
li_rc = loo_Oauth2.ConnectToNewObject("Chilkat.OAuth2")

loo_Oauth2.AccessToken = loo_Curl.GetVar("access_token")
li_Success = loo_Rest.SetAuthOAuth2(loo_Oauth2)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    return
end if

li_Success = loo_Rest.Connect("upload.box.com",443,1,1)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    return
end if

loo_Attributes = create oleobject
li_rc = loo_Attributes.ConnectToNewObject("Chilkat.JsonObject")

loo_Attributes.UpdateString("name","invoice.pdf")
loo_Attributes.UpdateString("parent.id",loo_Curl.GetVar("folder_id"))
li_Success = loo_Rest.AddHeader("Content-Type","multipart/form-data")
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    destroy loo_Attributes
    return
end if

loo_Rest.PartSelector = "1"
li_Success = loo_Rest.AddHeader("Content-Disposition","form-data; name=~"attributes~"")
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    destroy loo_Attributes
    return
end if

li_Success = loo_Rest.SetMultipartBodyString(loo_Attributes.Emit())
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    destroy loo_Attributes
    return
end if

loo_Rest.PartSelector = "2"
li_Success = loo_Rest.AddHeader("Content-Disposition","form-data; name=~"file~"; filename=~"invoice.pdf~"")
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    destroy loo_Attributes
    return
end if

li_Success = loo_Rest.AddHeader("Content-Type","application/pdf")
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    destroy loo_Attributes
    return
end if

li_Success = loo_Rest.SetMultipartBodyBd(loo_Data)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    destroy loo_Attributes
    return
end if

loo_Rest.PartSelector = "0"
ls_ResponseBody = loo_Rest.FullRequestMultipart("POST","/api/2.0/files/content")
if loo_Rest.LastMethodSuccess <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    destroy loo_Attributes
    return
end if

if loo_Rest.ResponseStatusCode <> 201 then
    Write-Debug "Upload failed: " + string(loo_Rest.ResponseStatusCode)
    Write-Debug ls_ResponseBody
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    destroy loo_Attributes
    return
end if

loo_Result = create oleobject
li_rc = loo_Result.ConnectToNewObject("Chilkat.JsonObject")

li_Success = loo_Result.Load(ls_ResponseBody)
if li_Success <> 1 then
    Write-Debug loo_Result.LastErrorText
    destroy loo_Curl
    destroy loo_SetupCommand
    destroy loo_AuthorizedCommand1
    destroy loo_Data
    destroy loo_Rest
    destroy loo_Oauth2
    destroy loo_Attributes
    destroy loo_Result
    return
end if

Write-Debug "Uploaded file ID: " + loo_Result.StringOf("entries[0].id")
loo_Curl.SetVar("file_name","invoice.pdf")
loo_Curl.SetVar("file_id",loo_Result.StringOf("entries[0].id"))
loo_Curl.ClearVar("file_version_id")
loo_Curl.ClearVar("file_sha1")


destroy loo_Curl
destroy loo_SetupCommand
destroy loo_AuthorizedCommand1
destroy loo_Data
destroy loo_Rest
destroy loo_Oauth2
destroy loo_Attributes
destroy loo_Result