(Tcl) Upload File to Google Cloud Storage

See more Google Cloud Storage Examples

Demonstrates how to upload a file to Google Cloud Storage.

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load ./chilkat.dll

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

# This example uses a previously obtained access token having permission for the 
# scope "https://www.googleapis.com/auth/cloud-platform"

set jsonToken [new_CkJsonObject]

set success [CkJsonObject_LoadFile $jsonToken "qa_data/tokens/googleCloudStorage.json"]
if {$success == 0} then {
    puts [CkJsonObject_lastErrorText $jsonToken]
    delete_CkJsonObject $jsonToken
    exit
}

# Send a POST equivalent to this curl command.
# The content of the file is contained in the request body.

# curl -X POST --data-binary @[OBJECT] \
#     -H "Authorization: Bearer [OAUTH2_TOKEN]" \
#     -H "Content-Type: [OBJECT_CONTENT_TYPE]" \
#     "https://www.googleapis.com/upload/storage/v1/b/[BUCKET_NAME]/o?uploadType=media&name=[OBJECT_NAME]"

set http [new_CkHttp]

CkHttp_put_AuthToken $http [CkJsonObject_stringOf $jsonToken "access_token"]

set sbPath [new_CkStringBuilder]

CkStringBuilder_Append $sbPath "/upload/storage/v1/b/bucket_name/o?uploadType=media&name=object_name"
set numReplaced [CkStringBuilder_Replace $sbPath "bucket_name" "chilkat-ocean"]
set numReplaced [CkStringBuilder_Replace $sbPath "object_name" "penguins.jpg"]

set req [new_CkHttpRequest]

CkHttpRequest_put_HttpVerb $req "POST"
CkHttpRequest_put_Path $req [CkStringBuilder_getAsString $sbPath]
CkHttpRequest_put_ContentType $req "image/jpeg"
# Indicate the file to be streamed in the request body when the HTTP POST is sent.
CkHttpRequest_StreamBodyFromFile $req "qa_data/jpg/penguins.jpg"

# resp is a CkHttpResponse
set resp [CkHttp_SynchronousRequest $http "www.googleapis.com" 443 1 $req]
if {[CkHttp_get_LastMethodSuccess $http] == 0} then {
    puts [CkHttp_lastErrorText $http]
    delete_CkJsonObject $jsonToken
    delete_CkHttp $http
    delete_CkStringBuilder $sbPath
    delete_CkHttpRequest $req
    exit
}

set responseCode [CkHttpResponse_get_StatusCode $resp]
if {$responseCode == 401} then {
    puts [CkHttpResponse_bodyStr $resp]
    puts "If invalid credentials, then it is likely the access token expired."
    puts "Your app should automatically fetch a new access token and re-try."
    delete_CkHttpResponse $resp

    delete_CkJsonObject $jsonToken
    delete_CkHttp $http
    delete_CkStringBuilder $sbPath
    delete_CkHttpRequest $req
    exit
}

puts "Response code: $responseCode"
puts "Response body"
puts [CkHttpResponse_bodyStr $resp]

# A successful response looks like this:
# Response code: 200
# Response body
# {
#  "kind": "storage#object",
#  "id": "chilkat-ocean/penguins.jpg/1502643657837855",
#  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/penguins.jpg",
#  "name": "penguins.jpg",
#  "bucket": "chilkat-ocean",
#  "generation": "1502643657837855",
#  "metageneration": "1",
#  "contentType": "image/jpeg",
#  "timeCreated": "2017-08-13T17:00:57.811Z",
#  "updated": "2017-08-13T17:00:57.811Z",
#  "storageClass": "MULTI_REGIONAL",
#  "timeStorageClassUpdated": "2017-08-13T17:00:57.811Z",
#  "size": "777835",
#  "md5Hash": "nTd7EM53jEk4s8fixjoimg==",
#  "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/penguins.jpg?generation=1502643657837855&alt=media",
#  "crc32c": "ixxYVw==",
#  "etag": "CJ+azOvX1NUCEAE="
# }

delete_CkHttpResponse $resp


delete_CkJsonObject $jsonToken
delete_CkHttp $http
delete_CkStringBuilder $sbPath
delete_CkHttpRequest $req