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DataFlex

Add a Request Header to a REST Request

See more REST Examples

Demonstrates Rest.AddHeader, which adds an HTTP request header field. The 1st argument is the field name and the 2nd is the value. Adding a header whose name already exists replaces the previous value.

Background. Request headers configured with AddHeader are applied to subsequent requests sent through the object, such as Accept, Content-Type, or custom application headers.

Chilkat DataFlex Downloads

DataFlex
Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoRest
    Boolean iBTls
    Boolean iBAutoReconnect
    String sResponseText
    String sTemp1
    Boolean bTemp1

    Move False To iSuccess

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

    //  Connect to the REST server.  The 3rd argument enables TLS (use True for HTTPS on port 443),
    //  and the 4th enables automatic reconnection if the connection is dropped between requests.
    Move True To iBTls
    Move True To iBAutoReconnect
    Get ComConnect Of hoRest "example.com" 443 iBTls iBAutoReconnect To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Add request header fields.  The 1st argument is the field name and the 2nd is the value.
    //  Adding a header with a name that already exists replaces the previous value.
    Get ComAddHeader Of hoRest "Accept" "application/json" To iSuccess
    Get ComAddHeader Of hoRest "X-Custom-Header" "example-value" To iSuccess

    Get ComFullRequestNoBody Of hoRest "GET" "/api/data" To sResponseText
    Get ComLastMethodSuccess Of hoRest To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln sResponseText


End_Procedure