Re: [crystal] How to get json data from HTTP post request?

[Chris Hobbs]

This code is correct, however it seems you’ve hit a bug in the compiler. Please can you report the bug on the issue tracker along with your compiler and OS version.

On 20/02/17 03:23, Кир Кур wrote:

Hi,

I receive json api requests from third-party. How can I get the data? I'm really sorry, there are no problem for me to get it from HTTP response, but here I'm stack for a day already.

server = HTTP::Server.new("0.0.0.0", 8080) do |context|
 if body = context.request.body
        data = JSON.parse(body)
      end
context.response.content_type = "text/plain"
  context.response.print data
end

puts "Listening on http://0.0.0.0:8080"
server.listen

And it gives me this output:

Bug: trying to downcast (JSON::Any | Nil) <- JSON::Any
0x55694e: ??? at ??
0x12ee86f: ??? at ??
0x135dc89: ??? at ??
0x130de2c: ??? at ??
0x133dded: ??? at ??
0x130e92c: ??? at ??
0x130ecb2: ??? at ??
0x132cea4: ??? at ??
0x1317301: ??? at ??
0x133e45b: ??? at ??
0x130e92c: ??? at ??
0x133406f: ??? at ??
0x130f471: ??? at ??
0x130ecb2: ??? at ??
0x12bb66b: ??? at ??
0x1b6b5f5: ??? at ??
0x5ab46b: ??? at ??
0x57ba4d: main at ??
0x7f6f972c8830: __libc_start_main at ??
0x556271: ??? at ??

Error: you've found a bug in the Crystal compiler. Please open an issue, including source code that will allow us to reproduce the bug: https://github.com/crystal-lang/crystal/issues

How to do it? Thanks.

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​

[Кир Кур]

Actually I found the solution in Kemal code.

body = context.request.body.not_nil!.gets_to_end

вторник, 21 февраля 2017 г., 1:52:36 UTC+7 пользователь RX14 написал: