(Swift 3,4,5...) OpenAI (ChatGTP) Retrieve File Content

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Demonstrate how to retrieve the content of a file from OpenAI. Shows how to download to a file, or instead download to a string in memory.

For more information, see https://platform.openai.com/docs/api-reference/files/retrieve-content

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

func chilkatTest() {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let http = CkoHttp()!
    var success: Bool

    // Adds the "Authorization: Bearer $OPENAI_API_KEY" header.
    // This is NOT a real key.  Change the "sk-vi...." to your own key.
    http.authToken = "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"

    var file_id: String? = "file-1H4vJq0H775gQVrjWY5jpp15"

    // Download to local file.
    var url: String? = "https://api.openai.com/v1/files/{$file_id}/content"
    http.setUrlVar("file_id", value: file_id)

    // Note: Free accounts are not able to download files.
    // If using a free account, you'll receive an error response:  "To help mitigate abuse, downloading of fine-tune training files is disabled for free accounts."
    success = http.download(url, saveToPath: "c:/aaworkarea/mydata.jsonl")
    if success == false {
        print("\(http.lastErrorText!)")
        print("Failed")
        return
    }

    print("Downloaded OpenAI file to a local file.")

    // Alternatively, download into a StringBuilder
    let sbData = CkoStringBuilder()!
    success = http.downloadSb(url, charset: sbData, sb: "utf-8")
    if success == false {
        print("\(http.lastErrorText!)")
        print("Failed")
        return
    }

    print("Downloaded OpenAI file to a StringBuilder")

    print("file content:")
    print("\(sbData.getAsString()!)")

}