HTTP Request - ExecuteAsync Method

Member of HTTP Request (PRIM_WEB.HttpRequest)

Details

The ExecuteAsync method is used to execute the HTTPRequest asynchronously.

Once the request is submitted, processing will continue, ensuring that user interaction isn't blocked.

The use of asynchronous requests is recommended over synchronous requests.

Example

In this example, a weather API is executed asynchronously, returning the data as a JSON object.

When the completed event fires, the result is processed.

     Mthroutine Name(GetWeather) Access(*Private)
        Define_Map For(*Input) Class(#prim_alph) Name(#Resource) 

        Define_Com Class(#PRIM_WEB.HttpRequest) Name(#Request) 

        #Request.URL := "http://api.openweathermap.org" + #Resource 

        #Request.ExecuteAsync 

        Evtroutine Handling(#Request.Completed) 

           If (#Request.Response *IsNot *null) 

           Case (#Request.Response.Status)
           When (= 200) 

              #Com_owner.Update( #Request.Response.JSON.RootItem ) 

           Otherwise 

              #Com_owner.UpdateForFailure( #Request ) 

           Endcase 

           Endif 

        Endroutine 

     Endroutine

See also

All Component Classes

Technical Reference