[fluiddb-discuss] json payload

[Tyler Gillies]

can someone please give me an example of a valid json payload, for
example "about" on POST /objects


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[Terry Jones]

Hi Tyler

> can someone please give me an example of a valid json payload, for
> example "about" on POST /objects

You should probably be producing JSON using a library. What language are
you coding in? Here's an example from Python (2.5.2):

import simplejson as json
data = { 'about' : 'New York' }
json.dumps(data)
>>> '{"about": "New York"}'

See http://www.json.org/ if you want a concise definition of the JSON spec.

BTW, a better place for posting programming questions on FluidDB is
fluidd...@googlegroups.com. But OTOH, we could use some discussion
around here, so it's no problem :-)

Terry

[tyler gillies]

C:\Users\tyler\Documents\code>curl -v -X POST -d '{"about" : "first attempt"}' "

http://fluiddb.fluidinfo.com/objects" --write-out "%{response_code}" -H "Content

-Type: application/json" -u tjgillies:**********************

* Could not resolve host: :; No data record of requested type

* Closing connection #0

000curl: (6) Could not resolve host: :; No data record of requested type

* About to connect() to fluiddb.fluidinfo.com port 80 (#0)

*   Trying 174.129.210.19... connected

* Connected to fluiddb.fluidinfo.com (174.129.210.19) port 80 (#0)

* Server auth using Basic with user 'tjgillies'

> POST /objects HTTP/1.1

> Authorization: Basic ********************

> User-Agent: curl/7.19.5 (i686-pc-mingw32) libcurl/7.19.5 OpenSSL/0.9.8k zlib/1

.2.3

> Host: fluiddb.fluidinfo.com

> Accept: */*

> Content-Type: application/json

> Content-Length: 7

>

< HTTP/1.1 400 Bad Request

< Transfer-Encoding: chunked

< Date: Tue, 27 Apr 2010 05:27:36 GMT

< X-Fluiddb-Error-Class: MalformedPayload

< Content-Type: text/html

< X-Fluiddb-Request-Id: limvetxvzzinlkhz

< Server: TwistedWeb/9.0.0

<

* Connection #0 to host fluiddb.fluidinfo.com left intact

400* Closing connection #0

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[Terry Jones]

Hi Tyler

From your command line, you're sending:

> C:\Users\tyler\Documents\code>curl -v -X POST -d '{"about" : "first attempt"}' "

but in your request you have:

> Content-Length: 7

The response shows

< X-Fluiddb-Error-Class: MalformedPayload

Which makes sense as only 7 bytes of the request will be being passed to
the JSON decoder, which will throw an error.

How is the Content-Length header getting into your request? It looks weird
because curl should know better.

[Xavier Noria]

On Tue, Apr 27, 2010 at 7:31 AM, tyler gillies <tjgi...@gmail.com> wrote:

> C:\Users\tyler\Documents\code>curl -v -X POST -d '{"about" : "first
> attempt"}' "
> http://fluiddb.fluidinfo.com/objects" --write-out "%{response_code}" -H
> "Content
> -Type: application/json" -u tjgillies:**********************

It's been a while since I touched Windows, but just in case it rings a
bell... does the shell understand those single quotes? Have you
checked the actual payload?

[Tristan Seligmann]

On Tue, Apr 27, 2010 at 8:40 AM, Xavier Noria <f...@hashref.com> wrote:
> On Tue, Apr 27, 2010 at 7:31 AM, tyler gillies <tjgi...@gmail.com> wrote:
>
>> C:\Users\tyler\Documents\code>curl -v -X POST -d '{"about" : "first
>> attempt"}' "
>> http://fluiddb.fluidinfo.com/objects" --write-out "%{response_code}" -H
>> "Content
>> -Type: application/json" -u tjgillies:**********************
>
> It's been a while since I touched Windows, but just in case it rings a
> bell... does the shell understand those single quotes? Have you
> checked the actual payload?

A careful inspection of the output suggests that it doesn't:

* Could not resolve host: :; No data record of requested type
* Closing connection #0
000curl: (6) Could not resolve host: :; No data record of requested type

ie. it seems to have treated the colon as a separate parameter; the
payload is probably:

'{about

which matches the Content-Length: 7 header. Unfortunately, I'm not
sure exactly what Windows shell incantation is required to quote the
arguments as desired; I think the simplest solution will be to put the
payload in a file, and pass -d @payloadfile to curl.
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[Terry Jones]

Hi Tristan

> A careful inspection of the output suggests that it doesn't:
>

> * Could not resolve host: :; No data record of requested type Closing
> * connection #0 000curl: (6) Could not resolve host: :; No data record of
> * requested type

Blush. You'd think, after several decades of messing with computers, that I
wouldn't somehow convince myself that the first couple of lines of error
output were probably just some weirdness that could be ignored.... :-)

I guess I did some wishful thinking: saw curl and \Users\tyler in the path
and ignored the backslashes, preferring to imagine that it was Mac OS X.

Anyway, thanks :-)

Terry