Trouble parsing a Json response in dialplan with jq

Asterisk Asterisk Dialplan
1

I am running into a issue trying to parse a RestAPI call in a dialplan which I want to use to block calls. if i do that my result is always blank.

;; CALL BLOCKING
exten => s,n,NoOp('This is called before we call block section')
exten => s,n,NoOp(${CALLER_NUMBER})
exten => s,n,NoOp(${CALLEE_NUMBER})
exten => s,n,Set(CURL_RESULT=${CURL(http://192.168.1.100/blacklist/${CALLEE_NUMBER}/${CALLER_NUMBER})})
exten => s,n,Set(result=${SHELL(echo '${CURL_RESULT}' | jq '.status')})
exten => s,n,NoOp(${result})

exten => s,n,Hangup

if i test from my server via below code

curl -v http://192.168.1.100/blacklist/1234567890/1234 | jq '.status'

i get the desired response and the value i am looking for. What am i missing here or is there a better way to parse values into the dialplan from a RestAPI call.

I am running on Asterisk 13.32.0 , CentOs 6 and jq-1.5

Hope someone can point me in right direction

2

Combine both lines to something like:

exten => s,n,Set(result=${SHELL(curl -v http://192.168.1.100/blacklist/${CALLEE_NUMBER}/${CALLER_NUMBER} | jq '.status')})
3

This doesn’t work either and wouldn’t be the ideal solution as i want to be able to assign multiple call variables based on the curl response.
But i tried use …

exten => s,n,Set(result=${SHELL(curl http://192.168.1.100/blacklist/${CALLEE_NUMBER}/${CALLER_NUMBER} | jq '.status')})
exten => s,n,NoOp('Result: ' ${result})

with no luck…
Here is the output of debug in my dial plan of these 2 lines

and here is what the curl returns…

{
  "success": true,
  "callingnbr": "222",
  "callednbr": "12345678901",
  "status": 0
}
4

I would suggest use AGI and set SET VARIABLE command

5

Asterisk channel variables really don’t like newlines, as I recall.

6

there shouldn’t be a new line when you use jq as it should read and return only the value of the key specified. I am suprised that json is not in higher demand in the astrisk community.
So how would i go about troubleshooting why it doesn’t not return anything. We know if i uonly run the curl i get data. when i use the jq i get nothing. if i use jq from my commandline on server i get what i expect

7

Treat it as an expression like …result=$[SHELL(curl…status’])})

8

I have the below working:


[get-country-code]
exten => s,1,Noop(Getting country code...)
exten => s,n,Set(country=${SHELL(curl -s ipinfo.io | jq .'country'):1:-2})
exten => s,n,Noop(Country code is: ${country})
exten => s,n,Hangup()

And the log…

    -- Executing [s@get-country-code:1] NoOp("SIP/101-000001cc", "Getting country name...") in new stack
    -- Executing [s@get-country-code:2] Set("SIP/101-000001cc", "country=US") in new stack
    -- Executing [s@get-country-code:3] NoOp("SIP/101-000001cc", "Country code is: US") in new stack
    -- Executing [s@get-country-code:4] Hangup("SIP/101-000001cc", "") in new stack
9

Thanks, i am missing something which causes this to fail. I used your sample code in my dial plan

exten => s,n,Set(country=${SHELL(curl -s ipinfo.io | jq .'country'):1:-2})
exten => s,n,Noop(Country code is: ${country})

and got the following result

-- Executing [s@macro-tl-custom-userexten:78] Set("SIP/2WAY-00000060", "country=") in new stack
-- Executing [s@macro-tl-custom-userexten:79] NoOp("SIP/2WAY-00000060", "Country code is: ") in new stack

Just to test i run it with 

exten => s,n,Set(country=${SHELL(curl -s ipinfo.io})  i get the whole json doc so we know curl is not the issue but it seems to be the issue running jq from within dialplan
10

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