mirror of
https://github.com/urbit/shrub.git
synced 2024-12-27 14:17:13 +03:00
147 lines
4.0 KiB
Plaintext
147 lines
4.0 KiB
Plaintext
/- rpc=json-rpc
|
|
/+ ethereum, azimuth, strandio
|
|
=, strand=strand:strandio
|
|
=, jael
|
|
|%
|
|
++ tract azimuth:contracts:azimuth
|
|
++ fetch-point
|
|
|= [url=@ta who=ship]
|
|
=/ m (strand ,point:azimuth)
|
|
^- form:m
|
|
=/ =request:rpc:ethereum
|
|
:+ %eth-call
|
|
=- [from=~ to=tract gas=~ price=~ value=~ data=-]
|
|
(encode-call:rpc:ethereum 'points(uint32)' [%uint `@`who]~)
|
|
[%label %latest]
|
|
;< jon=json bind:m (request-rpc url `'point' request)
|
|
=/ res=cord (so:dejs:format jon)
|
|
=/ =point:eth-noun:azimuth
|
|
(decode-results:abi:ethereum res point:eth-type:azimuth)
|
|
::
|
|
=/ =request:rpc:ethereum
|
|
:+ %eth-call
|
|
=- [from=~ to=tract gas=~ price=~ value=~ data=-]
|
|
(encode-call:rpc:ethereum 'rights(uint32)' [%uint `@`who]~)
|
|
[%label %latest]
|
|
;< jon=json bind:m (request-rpc url `'deed' request)
|
|
=/ res=cord (so:dejs:format jon)
|
|
=/ =deed:eth-noun:azimuth
|
|
(decode-results:abi:ethereum res deed:eth-type:azimuth)
|
|
::
|
|
(pure:m (point-from-eth:azimuth who point deed))
|
|
::
|
|
++ request-rpc
|
|
|= [url=@ta id=(unit @t) req=request:rpc:ethereum]
|
|
=/ m (strand ,json)
|
|
^- form:m
|
|
%+ (retry json) `10
|
|
=/ m (strand ,(unit json))
|
|
^- form:m
|
|
|^
|
|
=/ =request:http
|
|
:* method=%'POST'
|
|
url=url
|
|
header-list=['Content-Type'^'application/json' ~]
|
|
^= body
|
|
%- some %- as-octt:mimes:html
|
|
%- en-json:html
|
|
(request-to-json:rpc:ethereum id req)
|
|
==
|
|
;< ~ bind:m (send-request:strandio request)
|
|
;< rep=(unit client-response:iris) bind:m
|
|
take-maybe-response:strandio
|
|
?~ rep
|
|
(pure:m ~)
|
|
(parse-response u.rep)
|
|
::
|
|
++ parse-response
|
|
|= =client-response:iris
|
|
=/ m (strand ,(unit json))
|
|
^- form:m
|
|
?> ?=(%finished -.client-response)
|
|
?~ full-file.client-response
|
|
(pure:m ~)
|
|
=/ body=@t q.data.u.full-file.client-response
|
|
=/ jon=(unit json) (de-json:html body)
|
|
?~ jon
|
|
(pure:m ~)
|
|
=, dejs-soft:format
|
|
=/ array=(unit (list response:rpc))
|
|
((ar parse-one-response) u.jon)
|
|
?~ array
|
|
=/ res=(unit response:rpc) (parse-one-response u.jon)
|
|
?~ res
|
|
(strand-fail:strandio %request-rpc-parse-error >id< ~)
|
|
?: ?=(%error -.u.res)
|
|
(strand-fail:strandio %request-rpc-error >id< >+.res< ~)
|
|
?. ?=(%result -.u.res)
|
|
(strand-fail:strandio %request-rpc-fail >u.res< ~)
|
|
(pure:m `res.u.res)
|
|
(strand-fail:strandio %request-rpc-batch >%not-implemented< ~)
|
|
:: (pure:m `[%batch u.array])
|
|
::
|
|
++ parse-one-response
|
|
|= =json
|
|
^- (unit response:rpc)
|
|
=/ res=(unit [@t ^json])
|
|
%. json
|
|
=, dejs-soft:format
|
|
(ot id+so result+some ~)
|
|
?^ res `[%result u.res]
|
|
~| parse-one-response=json
|
|
:+ ~ %error %- need
|
|
%. json
|
|
=, dejs-soft:format
|
|
(ot id+so error+(ot code+no message+so ~) ~)
|
|
--
|
|
::
|
|
++ retry
|
|
|* result=mold
|
|
|= [crash-after=(unit @ud) computation=_*form:(strand (unit result))]
|
|
=/ m (strand ,result)
|
|
=| try=@ud
|
|
|- ^- form:m
|
|
=* loop $
|
|
?: =(crash-after `try)
|
|
(strand-fail:strandio %retry-too-many ~)
|
|
;< ~ bind:m (backoff:strandio try ~m1)
|
|
;< res=(unit result) bind:m computation
|
|
?^ res
|
|
(pure:m u.res)
|
|
loop(try +(try))
|
|
::
|
|
++ get-latest-block
|
|
|= url=@ta
|
|
=/ m (strand ,block)
|
|
^- form:m
|
|
;< =json bind:m (request-rpc url `'block number' %eth-block-number ~)
|
|
(get-block-by-number url (parse-eth-block-number:rpc:ethereum json))
|
|
::
|
|
++ get-block-by-number
|
|
|= [url=@ta =number:block]
|
|
=/ m (strand ,block)
|
|
^- form:m
|
|
|^
|
|
;< =json bind:m
|
|
(request-rpc url `'block by number' %eth-get-block-by-number number |)
|
|
=/ =block (parse-block json)
|
|
?. =(number number.id.block)
|
|
(strand-fail:strandio %reorg-detected >number< >block< ~)
|
|
(pure:m block)
|
|
::
|
|
++ parse-block
|
|
|= =json
|
|
^- block
|
|
=< [[&1 &2] |2]
|
|
^- [@ @ @]
|
|
~| json
|
|
%. json
|
|
=, dejs:format
|
|
%- ot
|
|
:~ hash+parse-hex-result:rpc:ethereum
|
|
number+parse-hex-result:rpc:ethereum
|
|
'parentHash'^parse-hex-result:rpc:ethereum
|
|
==
|
|
--
|
|
--
|