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diff --git a/_build/static/archives/extend/2013-May/000143.html b/_build/static/archives/extend/2013-May/000143.html new file mode 100644 index 00000000..5e6fe91b --- /dev/null +++ b/_build/static/archives/extend/2013-May/000143.html @@ -0,0 +1,102 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<HTML> + <HEAD> + <TITLE> [99s-extend] question to rest handler + </TITLE> + <LINK REL="Index" HREF="index.html" > + <LINK REL="made" HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20question%20to%20rest%20handler&In-Reply-To=%3CCALt%3DJ4P4vpHWTJ9D7JKbv04PU%3DktAsqMdbFnjF3zNLt7Kg9NmA%40mail.gmail.com%3E"> + <META NAME="robots" CONTENT="index,nofollow"> + <style type="text/css"> + pre { + white-space: pre-wrap; /* css-2.1, curent FF, Opera, Safari */ + } + </style> + <META http-equiv="Content-Type" content="text/html; charset=us-ascii"> + <LINK REL="Previous" HREF="000149.html"> + <LINK REL="Next" HREF="000144.html"> + </HEAD> + <BODY BGCOLOR="#ffffff"> + <H1>[99s-extend] question to rest handler</H1> + <B>Witali Monastyrjow</B> + <A HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20question%20to%20rest%20handler&In-Reply-To=%3CCALt%3DJ4P4vpHWTJ9D7JKbv04PU%3DktAsqMdbFnjF3zNLt7Kg9NmA%40mail.gmail.com%3E" + TITLE="[99s-extend] question to rest handler">chatlano at googlemail.com + </A><BR> + <I>Fri May 17 17:41:11 CEST 2013</I> + <P><UL> + <LI>Previous message: <A HREF="000149.html">[99s-extend] REALLY SOLVED -- Re: SOLVED -- Re: "access.log" for Cowboy +</A></li> + <LI>Next message: <A HREF="000144.html">[99s-extend] question to rest handler +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#143">[ date ]</a> + <a href="thread.html#143">[ thread ]</a> + <a href="subject.html#143">[ subject ]</a> + <a href="author.html#143">[ author ]</a> + </LI> + </UL> + <HR> +<!--beginarticle--> +<PRE>Hi all, + +I am learning cowboy by building a small application with rest interface. +I have a hello_world rest handler and I want to implement POST method that +returns +json as response to a client. Therefor I implemented callbacks +allowed_methods, +content_types_accepted and hello_json. The docu says user callbacks can +return {Value, Req, State} and also can return {halt, Req, State}. It is +not really clear +what that Value should be. So I tried {ok, Req, State} and {true, Req, +State} and with +both values I have + +=ERROR REPORT==== 11-May-2013::16:06:40 === +Error in process <0.6649.0> with exit value: +{function_clause,[{cowboy_req,reply,[303,.... + +and client gets right response. If I use {halt, Req, State} the client gets +right response too +and there is no errors. So, Is it right way to write a POST callback and +what Values can +be used for user callbacks? I write my code below. + +amike, +Vitali + +allowed_methods(Req, State) -> +{[<<"POST">>, <<"DELETE">>], Req, State}. + +content_types_accepted(Req, State) -> +{[ + {{<<"application">>, <<"x-www-form-urlencoded">>, []}, hello_json} + ], Req, State}. + +hello_json(Req, State) -> +{ok, Req2} = cowboy_req:reply(200, [{<<"content-type">>, +<<"application/json">>} ], <<"{\"rest\": \"Hello World!\"}">>, Req), +{halt, Req2, State}. +-------------- next part -------------- +An HTML attachment was scrubbed... +URL: <<A HREF="http://lists.ninenines.eu/archives/extend/attachments/20130517/629071b8/attachment.html">http://lists.ninenines.eu/archives/extend/attachments/20130517/629071b8/attachment.html</A>> +</PRE> + +<!--endarticle--> + <HR> + <P><UL> + <!--threads--> + <LI>Previous message: <A HREF="000149.html">[99s-extend] REALLY SOLVED -- Re: SOLVED -- Re: "access.log" for Cowboy +</A></li> + <LI>Next message: <A HREF="000144.html">[99s-extend] question to rest handler +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#143">[ date ]</a> + <a href="thread.html#143">[ thread ]</a> + <a href="subject.html#143">[ subject ]</a> + <a href="author.html#143">[ author ]</a> + </LI> + </UL> + +<hr> +<a href="https://lists.ninenines.eu/listinfo/extend">More information about the Extend +mailing list</a><br> +</body></html> |