nim-codex/codex/rest/json.nim

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import std/json
import std/strutils
import pkg/stew/byteutils
import pkg/questionable/results
import ../sales
import ../purchasing
type
StorageRequestParams* = object
duration*: UInt256
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reward*: UInt256
expiry*: ?UInt256
proc fromJson*(_: type Availability, bytes: seq[byte]): ?!Availability =
let json = ?catch parseJson(string.fromBytes(bytes))
let size = ?catch UInt256.fromHex(json["size"].getStr)
let duration = ?catch UInt256.fromHex(json["duration"].getStr)
let minPrice = ?catch UInt256.fromHex(json["minPrice"].getStr)
success Availability.init(size, duration, minPrice)
proc fromJson*(_: type StorageRequestParams,
bytes: seq[byte]): ?! StorageRequestParams =
let json = ?catch parseJson(string.fromBytes(bytes))
let duration = ?catch UInt256.fromHex(json["duration"].getStr)
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let reward = ?catch UInt256.fromHex(json["reward"].getStr)
let expiry = UInt256.fromHex(json["expiry"].getStr).catch.option
success StorageRequestParams(
duration: duration,
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reward: reward,
expiry: expiry
)
func `%`*(address: Address): JsonNode =
% $address
func `%`*(stint: StInt|StUInt): JsonNode =
%("0x" & stint.toHex)
func `%`*(arr: openArray[byte]): JsonNode =
%("0x" & arr.toHex)
func `%`*(purchase: Purchase): JsonNode =
%*{
"finished": purchase.finished,
"error": purchase.error.?msg,
"request": purchase.request,
}