(Swift 3,4,5...) Upload File to Google Cloud Storage

See more Google Cloud Storage Examples

Demonstrates how to upload a file to Google Cloud Storage.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // 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"

    let jsonToken = CkoJsonObject()!
    var success: Bool = jsonToken.loadFile("qa_data/tokens/googleCloudStorage.json")
    if success == false {
        print("\(jsonToken.lastErrorText!)")
        return
    }

    // 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]"

    let http = CkoHttp()!
    http.authToken = jsonToken.string(of: "access_token")

    let sbPath = CkoStringBuilder()!
    sbPath.append("/upload/storage/v1/b/bucket_name/o?uploadType=media&name=object_name")
    var numReplaced: Int = sbPath.replace("bucket_name", replacement: "chilkat-ocean").intValue
    numReplaced = sbPath.replace("object_name", replacement: "penguins.jpg").intValue

    let req = CkoHttpRequest()!
    req.httpVerb = "POST"
    req.path = sbPath.getAsString()
    req.contentType = "image/jpeg"
    // Indicate the file to be streamed in the request body when the HTTP POST is sent.
    req.streamBody(fromFile: "qa_data/jpg/penguins.jpg")

    var resp: CkoHttpResponse? = http.synchronousRequest("www.googleapis.com", port: 443, ssl: true, req: req)
    if http.lastMethodSuccess == false {
        print("\(http.lastErrorText!)")
        return
    }

    var responseCode: Int = resp!.statusCode.intValue
    if responseCode == 401 {
        print("\(resp!.bodyStr!)")
        print("If invalid credentials, then it is likely the access token expired.")
        print("Your app should automatically fetch a new access token and re-try.")
        resp = nil
        return
    }

    print("Response code: \(responseCode)")
    print("Response body")
    print("\(resp!.bodyStr!)")

    // 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="
    // }

    resp = nil

}