(Go) Firebase PATCH - Updating Data

Uses the PATCH method to update record with new information. The data used in this example is at Chilkat Firebase Pigs Database, and is shown here:

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

    // Uses the PATCH method to update a Firebase record.

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

    // This example assumes a JWT authentication token, if required, has been previously obtained.
    // See Get Firebase Access Token from JSON Service Account Private Key for sample code.

    // Load the previously obtained Firebase access token into a string.
    fac := chilkat.NewFileAccess()
    accessToken := fac.ReadEntireTextFile("qa_data/tokens/firebaseToken.txt","utf-8")
    if fac.LastMethodSuccess() != true {
        fmt.Println(fac.LastErrorText())
        fac.DisposeFileAccess()
        return
    }

    rest := chilkat.NewRest()

    // Make the initial connection (without sending a request yet).
    // Once connected, any number of requests may be sent.  It is not necessary to explicitly
    // call Connect before each request.  
    success := rest.Connect("chilkat.firebaseio.com",443,true,true)
    if success != true {
        fmt.Println(rest.LastErrorText())
        fac.DisposeFileAccess()
        rest.DisposeRest()
        return
    }

    authGoogle := chilkat.NewAuthGoogle()
    authGoogle.SetAccessToken(*accessToken)
    rest.SetAuthGoogle(authGoogle)

    // Chilkat's sample data (pig-rescue data) is publicly readable at: https://chilkat.firebaseio.com/.json
    // This data is publicly readable, but not writable.  You'll need to 
    // run against your own database..

    // We're going to update "Molly II" to "Molly III"
    pigNameUpdate := chilkat.NewJsonObject()
    pigNameUpdate.AppendString("name","Molly III")

    // The string content of the last arg passed is  {"name":"Molly III"} 
    jsonResponse := rest.FullRequestString("PATCH","/pig-rescue/animal/-KI3bD-FU_Dake7sYOiP.json",*pigNameUpdate.Emit())
    if rest.LastMethodSuccess() != true {
        // Something happened in the communications (either no request was sent, or no response was received.
        // (The Chilkat REST API also has lower-level methods where an app can send the request in one call,
        // and then receive the response in another call.)
        fmt.Println(rest.LastErrorText())
        fac.DisposeFileAccess()
        rest.DisposeRest()
        authGoogle.DisposeAuthGoogle()
        pigNameUpdate.DisposeJsonObject()
        return
    }

    // Check the response status code.   A 200 response status indicates success.
    if rest.ResponseStatusCode() != 200 {
        fmt.Println(rest.ResponseStatusText())
        fmt.Println(*jsonResponse)
        fmt.Println("Failed.")
        fac.DisposeFileAccess()
        rest.DisposeRest()
        authGoogle.DisposeAuthGoogle()
        pigNameUpdate.DisposeJsonObject()
        return
    }

    // When successful, the response contains the data written.
    fmt.Println(*jsonResponse)
    fmt.Println("Success.")

    fac.DisposeFileAccess()
    rest.DisposeRest()
    authGoogle.DisposeAuthGoogle()
    pigNameUpdate.DisposeJsonObject()