On Thursday, November 17, 2016 at 2:38:57 PM UTC-8, Niphlod wrote:
>
> if the request comes in either as a POST or as a PUT it has a body (since 
> all examples report a faily nested query structure, I'd say it's the case 
> vs a simple querystring in a GET)
>
> If the body carries the correct content-encoding, it's automatically 
> parsed into request.vars. You can still read the raw body as usual in 
> request.body .
>
>
Thanks, that helped me to know what to look for.  I got the Grafana stuff 
installed, it does the fake-json-source ok, and with FF developer tools 
 I'm seeing the traffic to my nascent endpoint.

When configuring the datasource URL, it does a GET to the base URL (the one 
just for "checking in", return an HTTP 200; I put a little status json into 
the response body just for grins).  When you configure a panel (the youtube 
videos they provide are important here) and select a metric , it will do an 
OPTIONS and then a POST.

I had put some CORS headers into my response, because FF is seeing me 
return data when it accesses the Gravana server.   [Sidebar question:  does 
the book cover anything about valid CORS?  I didn't find it if it's there; 
fortunately, there were some good posts in the GG archive.  The book does 
have little bits about providing protection against against black-hat 
CORS.]  The request to me seems to come from the client JS -- since it 
shows in the network panel -- but FF gives CORS errors if I don't have the 
headers.

So now I just have to make a good response to the metric requests.

/dps


>
> On Tuesday, November 15, 2016 at 10:50:23 PM UTC+1, Dave S wrote:
>>
>> I'm trying to implement a simple json endpoint for Grafana.  Does anyone 
>> here have experience with doing this?
>>
>> <URL:
>> https://github.com/grafana/simple-json-datasource/blob/master/README.md>
>>
>> I'm looking at using @service.json, but I'm not sure how to get the body 
>> on a /query.
>>
>> (The sample fake-simple-json-datasource is a server written in 
>> javascript!  It doesn't make clear if the /query is a POST or a GET, and if 
>> it's a GET how the body gets done.)
>>
>> /dps
>>
>>

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