urbit/pkg/arvo/lib/json/rpc.hoon
2021-05-14 07:24:27 +02:00

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:: json-rpc: protocol utilities
::
/- *json-rpc
|%
++ request-to-hiss
|= [url=purl:eyre req=request]
^- hiss:eyre
:- url
:+ %post
%- ~(gas in *math:eyre)
~['Content-Type'^['application/json']~]
%- some
%- as-octt:mimes:html
(en-json:html (request-to-json req))
::
++ request-to-json
|= request
^- json
%- pairs:enjs:format
:~ jsonrpc+s+'0.2'
id+s+id
method+s+method
::
:- %params
^- json
?- -.params
%list [%a +.params]
%object [%o (~(gas by *(map @t json)) +.params)]
==
==
::
++ response-to-json
|= =response
^- json
:: TODO: consider all cases
::
?+ -.response ~|([%unsupported-rpc-response response] !!)
%result
:- %o
%- molt
^- (list [@t json])
~[['id' s+id.response] ['res' res.response]]
::
%error
:- %o
%- molt
^- (list [@t json])
:~ ['id' s+id.response]
['code' s+code.response]
['message' s+message.response]
==
==
::
++ validate-request
|= [body=(unit octs) parse-method=$-(@t term)]
^- (unit request)
?~ body ~
?~ jon=(de-json:html q.u.body) ~
:: ignores non-object responses
::
:: ?. ?=([%o *] json) ~|([%format-not-valid json] !!)
?. ?=([%o *] u.jon) ~
%- some
%. u.jon
=, dejs:format
%- ot
:~ ['id' no]
['jsonrpc' so]
['method' (cu parse-method so)]
::
:- 'params'
|= =json
^- request-params
?: =(%a -.json)
[%list ((ar same) json)]
?. =(%o -.json)
!!
[%object ~(tap by ((om same) json))]
==
--