Re: Newbie Question on GWT/JSON
Whoops, forgot my footnote: [1] http://www.ietf.org/rfc/rfc4627.txt I don't know if that makes it official. I believe the official entity that vets mime types is IANA, but on their site I couldn't quickly get to an official list of recognized mime types. Still, if Doug Crockford says the type is application/json, and almost everyone uses that, that's the standard. That's how the internet works; standards bodies can wax rhapsodic about whatever they fancy, but if no one does it, it's not something you should be doing either, regardless of whether or not its the 'official standard', so, there you have it. Oh, and martykube: Be careful that your soul doesn't waft out the window that is giving you that fresh air. As a general rule, if PHP is a good fit for you, grails, rails, or django are usually an even better fit. On Jan 4, 11:48 pm, rakesh wagh rake...@gmail.com wrote: You probably got your answer by now. Think this way. JSON string is like any other string. The transport mechanism does not have to know weather it is json or text or number or binary or otherwise. With that said, you can use forms with get or post(knowing the advantages drawback of each will help you select the right mechanism) and simply posting it to your php page. In your php page, read the request parameters as if they were any other parameters. As a matter of fact you can even append the json string as part of your target page url with a variable name and expect the json string (with a hyperlink click) to reach its destination as expected. Good luck! Rakesh Wagh On Jan 3, 9:09 pm, Ian ikra...@gmail.com wrote: I am new to the Web application world; I am trying to encapsulate my set of data in a JSONObject, convert to string, and send it (async POST) to a PHP page using GWT's RequestBuilder. GWT's tutorial discusses the trip from the server back to the client and not the other way around where I am unclear about. Do I need to set the header? Currently I set it to: builder.setHeader(Content-Type, application/x-www-form- urlencoded); However, this works fine as long as am sending key1=value1key2=values where I can retrieve variable via $_POST ['key1'] or $_POST['key2'] But I am not sure how to send a JSON string where it can be retrieved in a php page. I have tried sending myvar=MyJsonString but cannot retrieve in my php page. How should $_POST reference the JSON object? Any clarification would be much appreciated. Thanks, Ian --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Newbie Question on GWT/JSON
On Sun, Jan 4, 2009 at 11:31 PM, Reinier Zwitserloot reini...@gmail.com wrote: JSON's mimetype is application/json (see [1] below). You missed the [1] below part and my interest is piqued. Is application/json an officially accepted MIME type? Oh, PHP. Every single time someone posts a code snippet written in PHP, my aesthetic sense blows its brains out in sheer despair. And this one is up there, which is really saying something. I think its a conspiracy by the zend folks to make the inner child of developers worldwide die a little inside every time they come in contact with it. Sadistic bastards. Too bad the truth can be so inflammatory Ian --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Newbie Question on GWT/JSON
You probably got your answer by now. Think this way. JSON string is like any other string. The transport mechanism does not have to know weather it is json or text or number or binary or otherwise. With that said, you can use forms with get or post(knowing the advantages drawback of each will help you select the right mechanism) and simply posting it to your php page. In your php page, read the request parameters as if they were any other parameters. As a matter of fact you can even append the json string as part of your target page url with a variable name and expect the json string (with a hyperlink click) to reach its destination as expected. Good luck! Rakesh Wagh On Jan 3, 9:09 pm, Ian ikra...@gmail.com wrote: I am new to the Web application world; I am trying to encapsulate my set of data in a JSONObject, convert to string, and send it (async POST) to a PHP page using GWT's RequestBuilder. GWT's tutorial discusses the trip from the server back to the client and not the other way around where I am unclear about. Do I need to set the header? Currently I set it to: builder.setHeader(Content-Type, application/x-www-form- urlencoded); However, this works fine as long as am sending key1=value1key2=values where I can retrieve variable via $_POST ['key1'] or $_POST['key2'] But I am not sure how to send a JSON string where it can be retrieved in a php page. I have tried sending myvar=MyJsonString but cannot retrieve in my php page. How should $_POST reference the JSON object? Any clarification would be much appreciated. Thanks, Ian --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Newbie Question on GWT/JSON
I am new to the Web application world; I am trying to encapsulate my set of data in a JSONObject, convert to string, and send it (async POST) to a PHP page using GWT's RequestBuilder. GWT's tutorial discusses the trip from the server back to the client and not the other way around where I am unclear about. Do I need to set the header? Currently I set it to: builder.setHeader(Content-Type, application/x-www-form- urlencoded); However, this works fine as long as am sending key1=value1key2=values where I can retrieve variable via $_POST ['key1'] or $_POST['key2'] But I am not sure how to send a JSON string where it can be retrieved in a php page. I have tried sending myvar=MyJsonString but cannot retrieve in my php page. How should $_POST reference the JSON object? Any clarification would be much appreciated. Thanks, Ian --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Newbie Question on GWT/JSON
Whatever possessed you to send the application/x-www-form- urlencoded as mime type? JSON is nothing like form-encoded. That's like sending your HTML as image/jpeg just for kicks. Don't do that. JSON's mimetype is application/json (see [1] below). If you want to be nice, you should actually set that in the header (as follows: Content-type: application/json; encoding=UTF-8 - note that JSON is defined to be UTF-8 encoded, so you're just clarifying there, you can't pick your own encoding). And, yes, of course, in PHP you would have to get the entire request body, instead of letting PHP try to parse it as form data. Possibly PHP is presuming that the data IS form encoded when there is no header at all. Is file_get_contents(php://input); really the only feasible way to get the entire body in PHP? Oh, PHP. Every single time someone posts a code snippet written in PHP, my aesthetic sense blows its brains out in sheer despair. And this one is up there, which is really saying something. I think its a conspiracy by the zend folks to make the inner child of developers worldwide die a little inside every time they come in contact with it. Sadistic bastards. On Jan 4, 6:52 am, Ian ikra...@gmail.com wrote: For those who might be facing a similar problem and others who might be interested in my previous question I have come up with an answer. First my disclaimer: the solution below may not be the proper one but it does work. Now on to the solution: On the GWT Client Side: JSONObject jObject = new JSONObject(); jObject .put(propA, new JSONString(valA)); jObject .put(... RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, YOUR_PHP_URL); builder.sendRequest(jObject.toString(), new YourReponseHandler()); Note that there is no setHeader. On the PHP side: Get the raw data instead of $_POST $jsonReq = file_get_contents(php://input); Decode the json request $request = json_decode($jsonReq); Cheers, Ian On Jan 3, 10:09 pm, Ian ikra...@gmail.com wrote: I am new to the Web application world; I am trying to encapsulate my set of data in a JSONObject, convert to string, and send it (async POST) to a PHP page using GWT's RequestBuilder. GWT's tutorial discusses the trip from the server back to the client and not the other way around where I am unclear about. Do I need to set the header? Currently I set it to: builder.setHeader(Content-Type, application/x-www-form- urlencoded); However, this works fine as long as am sending key1=value1key2=values where I can retrieve variable via $_POST ['key1'] or $_POST['key2'] But I am not sure how to send a JSON string where it can be retrieved in a php page. I have tried sending myvar=MyJsonString but cannot retrieve in my php page. How should $_POST reference the JSON object? Any clarification would be much appreciated. Thanks, Ian --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
