(DataFlex) Firebase POST - Pushing Data

Uses the POST method to append a new record at a particular location in the database. Firebase automatically generates the push ID and returns it in the response. The data used in this example is at Chilkat Firebase Pigs Database, and is shown here:

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoFac
    String sAccessToken
    Handle hoRest
    Boolean iSuccess
    Variant vAuthGoogle
    Handle hoAuthGoogle
    Handle hoPigRecord
    String sJsonResponse
    Handle hoResp
    String sPushId
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

    // Push a new record to a Firebase JSON database using the POST HTTP method.

    // 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.
    Get Create (RefClass(cComCkFileAccess)) To hoFac
    If (Not(IsComObjectCreated(hoFac))) Begin
        Send CreateComObject of hoFac
    End
    Get ComReadEntireTextFile Of hoFac "qa_data/tokens/firebaseToken.txt" "utf-8" To sAccessToken
    Get ComLastMethodSuccess Of hoFac To bTemp1
    If (bTemp1 <> True) Begin
        Get ComLastErrorText Of hoFac To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatRest)) To hoRest
    If (Not(IsComObjectCreated(hoRest))) Begin
        Send CreateComObject of hoRest
    End

    // 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.  
    Get ComConnect Of hoRest "chilkat.firebaseio.com" 443 True True To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatAuthGoogle)) To hoAuthGoogle
    If (Not(IsComObjectCreated(hoAuthGoogle))) Begin
        Send CreateComObject of hoAuthGoogle
    End
    Set ComAccessToken Of hoAuthGoogle To sAccessToken
    Get pvComObject of hoAuthGoogle to vAuthGoogle
    Get ComSetAuthGoogle Of hoRest vAuthGoogle To iSuccess

    // 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 add a new pig with just the name.
    Get Create (RefClass(cComChilkatJsonObject)) To hoPigRecord
    If (Not(IsComObjectCreated(hoPigRecord))) Begin
        Send CreateComObject of hoPigRecord
    End
    Get ComAppendString Of hoPigRecord "name" "William" To iSuccess

    // The string content of the last arg passed is  {"name":"William"} 
    Get ComEmit Of hoPigRecord To sTemp1
    Get ComFullRequestString Of hoRest "POST" "/pig-rescue/animal.json" sTemp1 To sJsonResponse
    Get ComLastMethodSuccess Of hoRest To bTemp1
    If (bTemp1 <> True) Begin
        // 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.)
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Check the response status code.   A 200 response status indicates success.
    Get ComResponseStatusCode Of hoRest To iTemp1
    If (iTemp1 <> 200) Begin
        Get ComResponseStatusText Of hoRest To sTemp1
        Showln sTemp1
        Showln sJsonResponse
        Showln "Failed."
        Procedure_Return
    End

    // Get the push ID generated by Firebase
    Get Create (RefClass(cComChilkatJsonObject)) To hoResp
    If (Not(IsComObjectCreated(hoResp))) Begin
        Send CreateComObject of hoResp
    End
    Get ComLoad Of hoResp sJsonResponse To iSuccess
    Get ComStringOf Of hoResp "name" To sPushId
    Showln "Added record with push ID " sPushId
    Showln "Success."


End_Procedure