On Sunday, December 14, 2014 9:43:12 AM UTC-5, sri wrote:
>
> I replaced a blocking Mojo::UserAgent call with an
>> asynchronous version, and the associated call back/closure.
>>
>
> This is still blocking, you've just redirected the content stream from an
> asset object into a closure.
>
This is a wording error on my part, I don't really care about the
blocking/non-blocking nature, I care more about the streaming client side,
which is for the most part, working.
Where it falls down is on error handling. If I run a query I expect to
fail using curl, I can see the header and content failure I want to capture
in an event.
landman@metal:~$ curl -v -G 'hp=scalable' --data-urlencode "q=select * from
metal.tcpinfo.udperrs1 limit 10"
* Adding handle: conn: 0xa9ffa0
* Adding handle: send: 0
* Adding handle: recv: 0
* Curl_addHandleToPipeline: length: 1
* - Conn 0 (0xa9ffa0) send_pipe: 1, recv_pipe: 0
* About to connect() to localhost port 8086 (#0)
* Trying 127.0.0.1...
* Connected to localhost (127.0.0.1) port 8086 (#0)
> GET
/db/metrics/series?u=scalable&p=scalable&q=select%20%2A%20from%20metal.tcpinfo.udperrs1%20limit%2010
HTTP/1.1
> User-Agent: curl/7.33.0
> Host: localhost:8086
> Accept: */*
>
< HTTP/1.1 400 Bad Request
< Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type,
Accept
< Access-Control-Allow-Methods: GET, POST, PUT, DELETE
< Access-Control-Allow-Origin: *
< Access-Control-Max-Age: 2592000
< Content-Type: text/plain
< X-Influxdb-Version: InfluxDB v0.8.8 (git: afde71e) (leveldb: 1.15)
< Date: Tue, 30 Dec 2014 18:38:11 GMT
< Content-Length: 44
<
* Connection #0 to host localhost left intact
Couldn't find series: metal.tcpinfo.udperrs1
I want to get that '400 Bad request' and the 'Couldn't find ...' string. I
am guessing I need to do something like this:
my @message;
$tx->res->headers->unsubscribe($EVENT1)
->on($EVENT1 => sub {
my ($msg,$code) = @_;
push @message,{msg => $msg, rc => $code};
});
But I don't know what event I should be using for $EVENT1. Looking at
Mojo::Event. Would this be the progress event?
I stepped through the code and looked at the trace through the $ret =
$ua->start($tx) and noticed at the end, the $ret->res->code returned 200,
even though it really is 400. Any hints on how to subscribe to the correct
response bits?
Thanks!
> --
> sebastian
>
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