post-redirect-get

问题 I want to Create a new API app usin Google Apps script and Hello sign API I have specified the redirect URL as https://script.google.com/macros/s/AKfycbyKw3oLmpqINGsDml281iUbxBboKn950dqVFXNibMfLurxYcRPf/exec and the screenshot is shown below Also, the code of the apps script file is function doPost(e) { return ContentService.createTextOutput("Hello API Event Received."); } The documentation says: https://app.hellosign.com/api/eventsAndCallbacksWalkthrough I get error message as shown like

问题 I've got a basic flow example working: src/main/webapp | |- index.xhtml |- flow1 |- flow1-flow.xml |- flow1.xhtml index.xhtml has a simple form that enters the flow with a parameter: <h:form> Click to enter flow1 <h:commandButton action="flow1" value="Flow 1"> <f:param name="testInput" value="hi there"/> </h:commandButton> </h:form> flow1.xhtml displays the param and lets you enter a value into flow scope: <h:form> Hi this is page 1. <h:inputText label="Enter something:" value="#{flowScope

问题 I need to prevent duplicate form submissions for my customer's website. we need some form data from user for order confirm page. we use load balancing for web server. Approach 1 : Post/Redirect/Get (PRG pattern : http://en.wikipedia.org/wiki/Post/Redirect/Get) I was trying to use PRG pattern at first. in this case, I think I need to deal with session(or spring flashmap) across multiple web server. Approach 2 : Disable refresh on client. one of my colleague suggested this approach. Approach 3

问题 I need to prevent duplicate form submissions for my customer's website. we need some form data from user for order confirm page. we use load balancing for web server. Approach 1 : Post/Redirect/Get (PRG pattern : http://en.wikipedia.org/wiki/Post/Redirect/Get) I was trying to use PRG pattern at first. in this case, I think I need to deal with session(or spring flashmap) across multiple web server. Approach 2 : Disable refresh on client. one of my colleague suggested this approach. Approach 3

问题 Doing a refresh after certain action in asp.net seems to make them happen again even when that action doesn't make sense (think double delete). The web way to deal with this situation is to redirect after a post to get a clean version of the page that can be refreshed without reposting an action to the webserver. How can I do this with ASP.NET 回答1: I have a feeling there is a deeper problem I'm not getting but here goes. In your postback event: // the post handling logic, e.g. the click event

问题 For the successful use case, the Post/Redirect/Get (PRG) work flow is pretty simple: simply redirect (client-side) to the desired page. But what about cases when errors are encountered during server-side validation and we want to preserve the inputs when we display the input page again? As far as I can tell, there are two approaches: simply re-render the input page after the form POST submission (i.e. no redirection) during errors (thus disregarding the PRG pattern); or, redirect to the input

问题 I have a Single Page Application (SPA) built with DurandalJS v1.2 that integrates with a payment gateway. The SPA will go off to the payment gateway's page by doing a normal form POST to their page. Once the user has finished on the payment gateways page, the payment gateway will then do a form POST back to my SPA. Since it's a POST, I handle it server side in ASP.NET MVC by rendering out a require.js module definition for the various form parameters being sent, and this module is then used

问题 I have a page that loads a lot of images, css and javascript. I've added a far future Expires header and set Cache-Control to public on these external dependencies so they should be cached. But every time I do a Post/Redirect/Get chrome tries to load these again. This behavior is very similar to reloading the page. I've added ETags and handle the If-None-Match header which helps a bit, but it still generates too many useless requests. How do I tell chrome and safari to get the files from

问题 PHP Post/Redirect/Get solution is good just for refreshing the page? What about if the user clicks on the back button twice and resend the form? The only solution I have found is to check in my database if same data is already posted. Is there any other solution without querying the database? Thank you in advance!!! 回答1: PRG is perfect for browser Back button support too. An HTTP redirect replaces the URL in browser history instead of adding a new entry. If you apply PRG consistently, i.e.

问题 So I read up on this method called PRG as a way of addressing the form double-submit issue. However, I have yet to find a descent implementation of the Summary Page / Success Message displayed to the user. The only way I can think of is storing a session variable, but I don't want it to persist on multiple refreshes. It should show the message/summary once, and be done. Furthermore, it would be ideal if the user could not return to the previously submitted page. Here is my PRG Code: Protected