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(Chilkat2-Python) Box.com Streaming Upload File

Demonstrates how to upload a file to box.com, streaming the file directly from the filesystem.

Note: This example requires a fix that is included in Chilkat v9.5.0.70 and above.

Chilkat2 Python Downloads

Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

# This requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

rest = chilkat2.Rest()

# Provide a previously obtained OAuth2 access token.
oauth2 = chilkat2.OAuth2()
oauth2.AccessToken = "BOX_ACCESS_TOKEN"
rest.SetAuthOAuth2(oauth2)

# First, make the initial connection.
# A single REST object, once connected, can be used for many Box REST API calls.
# The auto-reconnect indicates that if the already-established HTTPS connection is closed,
# then it will be automatically re-established as needed.
bAutoReconnect = True

# ----------------------------------------------------------------------
# IMPORTANT: Note that the domain is "upload.box.com", not "api.box.com"
# ----------------------------------------------------------------------
success = rest.Connect("upload.box.com",443,True,bAutoReconnect)
if (success != True):
    print(rest.LastErrorText)
    sys.exit()

# The request body uses the "multipart/form-data" format to transmit two "parts".
# The first part is called "attributes" and contains a JSON object with information about the file, including the name of the file
# and the ID of the parent folder. The second part contains the contents of the file.
# (Note that the name of the second "part" is ignored.)

rest.AddHeader("Content-Type","multipart/form-data")

# Provide the content for each part of the request...

# First the JSON attributes.  Use "0" for the root folder.
# {"name":"hedgehogs.jpg", "parent":{"id":"0"}}
jsonAttr = chilkat2.JsonObject()
jsonAttr.UpdateString("name","hedgehogs.jpg")
jsonAttr.UpdateString("parent.id","0")

rest.PartSelector = "1"
rest.AddHeader("Content-Disposition","form-data; name=\"attributes\"; ")
rest.SetMultipartBodyString(jsonAttr.Emit())

# The upload will stream directly from a file.
rest.PartSelector = "2"
rest.AddHeader("Content-Disposition","form-data; name=\"file\"; filename=\"hedgehogs.jpg\"")
# "application/octet-stream" can be safely used for any type file..
rest.AddHeader("Content-Type","application/octet-stream")

# IMPORTANT: This example requires Chilkat v9.5.0.70 or later, for a fix that was made in
# multipart/streaming uploads.
fileStream = chilkat2.Stream()
fileStream.SourceFile = "qa_data/jpg/hedgehogs.jpg"
rest.SetMultipartBodyStream(fileStream)

# Restore the PartSelector to "0" (for safety, in case something else sends another request on this object)
rest.PartSelector = "0"

# Send the multipart/form-data request, which uploads the file by streaming directly from the filesystem.
responseBody = rest.FullRequestMultipart("POST","/api/2.0/files/content")
if (rest.LastMethodSuccess != True):
    print(rest.LastErrorText)
    sys.exit()

# A 201 is received for a successful upload
if (rest.ResponseStatusCode != 201):
    print("Box.com upload failed.")
    print("Request header:")
    print(rest.LastRequestHeader)
    print("---")
    print("Response status code = " + str(rest.ResponseStatusCode))
    print("Response body:")
    print(responseBody)
    sys.exit()

print("File uploaded.")

 

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