feat: bigint uses decimal over hex encoding (#452)

codex/rest/coders.nim

@@ -19,6 +19,7 @@ import pkg/stint
 
 import ../sales
 import ../purchasing
+import ../utils/stintutils
 
 proc encodeString*(cid: type Cid): Result[string, cstring] =
   ok($cid)
@@ -72,7 +73,7 @@ proc encodeString*(value: bool): Result[string, cstring] =
 
 proc decodeString*(_: type UInt256, value: string): Result[UInt256, cstring] =
   try:
-    ok UInt256.fromHex(value)
+    ok UInt256.fromDecimal(value)
   except ValueError as e:
     err e.msg.cstring
 

codex/rest/json.nim

@@ -4,6 +4,9 @@ import pkg/stew/byteutils
 import pkg/questionable/results
 import ../sales
 import ../purchasing
+import ../utils/stintutils
+
+export json
 
 type
   StorageRequestParams* = object
@@ -17,22 +20,22 @@ type
 
 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)
-  let maxCollateral = ?catch UInt256.fromHex(json["maxCollateral"].getStr)
+  let size = ?catch UInt256.fromDecimal(json["size"].getStr)
+  let duration = ?catch UInt256.fromDecimal(json["duration"].getStr)
+  let minPrice = ?catch UInt256.fromDecimal(json["minPrice"].getStr)
+  let maxCollateral = ?catch UInt256.fromDecimal(json["maxCollateral"].getStr)
   success Availability.init(size, duration, minPrice, maxCollateral)
 
 proc fromJson*(_: type StorageRequestParams,
                bytes: seq[byte]): ?! StorageRequestParams =
   let json = ?catch parseJson(string.fromBytes(bytes))
-  let duration = ?catch UInt256.fromHex(json["duration"].getStr)
-  let proofProbability = ?catch UInt256.fromHex(json["proofProbability"].getStr)
-  let reward = ?catch UInt256.fromHex(json["reward"].getStr)
-  let collateral = ?catch UInt256.fromHex(json["collateral"].getStr)
-  let expiry = UInt256.fromHex(json["expiry"].getStr).catch.option
-  let nodes = strutils.fromHex[uint](json["nodes"].getStr).catch.option
-  let tolerance = strutils.fromHex[uint](json["tolerance"].getStr).catch.option
+  let duration = ?catch UInt256.fromDecimal(json["duration"].getStr)
+  let proofProbability = ?catch UInt256.fromDecimal(json["proofProbability"].getStr)
+  let reward = ?catch UInt256.fromDecimal(json["reward"].getStr)
+  let collateral = ?catch UInt256.fromDecimal(json["collateral"].getStr)
+  let expiry = UInt256.fromDecimal(json["expiry"].getStr).catch.option
+  let nodes = parseUInt(json["nodes"].getStr).catch.option
+  let tolerance = parseUInt(json["tolerance"].getStr).catch.option
   success StorageRequestParams(
     duration: duration,
     proofProbability: proofProbability,
@@ -47,7 +50,7 @@ func `%`*(address: Address): JsonNode =
   % $address
 
 func `%`*(stint: StInt|StUint): JsonNode=
-  %("0x" & stint.toHex)
+  %(stint.toString)
 
 func `%`*(arr: openArray[byte]): JsonNode =
   %("0x" & arr.toHex)

codex/utils/stintutils.nim

@@ -0,0 +1,4 @@
+import pkg/stint
+
+func fromDecimal*(T: typedesc[StUint|StInt], s: string): T {.inline.} =
+  parse(s, type result, radix = 10)

openapi.yaml

@@ -40,11 +40,11 @@ components:
 
     Duration:
       type: string
-      description: The duration of the request in seconds as hexadecimal string
+      description: The duration of the request in seconds as decimal string
 
     ProofProbability:
       type: string
-      description: How often storage proofs are required as hexadecimal string
+      description: How often storage proofs are required as decimal string
 
     Expiry:
       type: string
@@ -106,15 +106,15 @@ components:
           description: Hexadecimal identifier of the availability
         size:
           type: string
-          description: Size of available storage in bytes as hexadecimal string
+          description: Size of available storage in bytes as decimal string
         duration:
           $ref: "#/components/schemas/Duration"
         minPrice:
           type: string
-          description: Minimum price to be paid (in amount of tokens) as hexadecimal string
+          description: Minimum price to be paid (in amount of tokens) as decimal string
         maxCollateral:
           type: string
-          description: Maximum collateral user is willing to pay per filled Slot (in amount of tokens)
+          description: Maximum collateral user is willing to pay per filled Slot (in amount of tokens) as decimal string
 
     Slot:
       type: object
@@ -164,7 +164,7 @@ components:
           description: Number of slots (eq. hosts) that the Request want to have the content spread over
         slotSize:
           type: string
-          description: Amount of storage per slot (in bytes) as hexadecimal string
+          description: Amount of storage per slot (in bytes) as decimal string
         duration:
           $ref: "#/components/schemas/Duration"
         proofProbability:
@@ -406,7 +406,7 @@ paths:
               $ref: "#/components/schemas/StorageRequestCreation"
       responses:
         "200":
-          description: Returns the Request ID as hexadecimal string
+          description: Returns the Request ID as decimal string
         "400":
           description: Invalid or missing Request ID
         "404":

tests/contracts/deployment.nim

@@ -1,4 +1,5 @@
 import std/os
+import std/options
 import pkg/ethers
 import pkg/codex/contracts/marketplace
 

tests/contracts/time.nim

@@ -4,10 +4,10 @@ proc currentTime*(provider: Provider): Future[UInt256] {.async.} =
   return (!await provider.getBlock(BlockTag.latest)).timestamp
 
 proc advanceTime*(provider: JsonRpcProvider, seconds: UInt256) {.async.} =
-  discard await provider.send("evm_increaseTime", @[%seconds])
+  discard await provider.send("evm_increaseTime", @[%("0x" & seconds.toHex)])
   discard await provider.send("evm_mine")
 
 proc advanceTimeTo*(provider: JsonRpcProvider, timestamp: UInt256) {.async.} =
   if (await provider.currentTime()) != timestamp:
-    discard await provider.send("evm_setNextBlockTimestamp", @[%timestamp])
+    discard await provider.send("evm_setNextBlockTimestamp", @[%("0x" & timestamp.toHex)])
     discard await provider.send("evm_mine")

tests/integration/codexclient.nim

@@ -35,11 +35,11 @@ proc requestStorage*(client: CodexClient,
                      collateral: uint64): string =
   let url = client.baseurl & "/storage/request/" & cid
   let json = %*{
-    "duration": "0x" & duration.toHex,
-    "reward": "0x" & reward.toHex,
-    "proofProbability": "0x" & proofProbability.toHex,
-    "expiry": "0x" & expiry.toHex,
-    "collateral": "0x" & collateral.toHex,
+    "duration": $duration,
+    "reward": $reward,
+    "proofProbability": $proofProbability,
+    "expiry": $expiry,
+    "collateral": $collateral,
   }
   let response = client.http.post(url, $json)
   assert response.status == "200 OK"
@@ -59,10 +59,10 @@ proc postAvailability*(client: CodexClient,
                        size, duration, minPrice: uint64, maxCollateral: uint64): JsonNode =
   let url = client.baseurl & "/sales/availability"
   let json = %*{
-    "size": "0x" & size.toHex,
-    "duration": "0x" & duration.toHex,
-    "minPrice": "0x" & minPrice.toHex,
-    "maxCollateral": "0x" & maxCollateral.toHex
+    "size": $size,
+    "duration": $duration,
+    "minPrice": $minPrice,
+    "maxCollateral": $maxCollateral,
   }
   let response = client.http.post(url, $json)
   assert response.status == "200 OK"

tests/integration/testIntegration.nim

@@ -2,7 +2,8 @@ import std/json
 import pkg/chronos
 import pkg/stint
 import pkg/ethers/erc20
-import codex/contracts
+import pkg/codex/contracts
+import pkg/codex/utils/stintutils
 import ../contracts/time
 import ../contracts/deployment
 import ../codex/helpers/eventually
@@ -52,9 +53,9 @@ twonodessuite "Integration tests", debug1 = false, debug2 = false:
     let cid = client1.upload("some file contents")
     let id = client1.requestStorage(cid, duration=1, reward=2, proofProbability=3, expiry=expiry, collateral=200)
     let purchase = client1.getPurchase(id)
-    check purchase{"request"}{"ask"}{"duration"} == %"0x1"
-    check purchase{"request"}{"ask"}{"reward"} == %"0x2"
-    check purchase{"request"}{"ask"}{"proofProbability"} == %"0x3"
+    check purchase{"request"}{"ask"}{"duration"} == %"1"
+    check purchase{"request"}{"ask"}{"reward"} == %"2"
+    check purchase{"request"}{"ask"}{"proofProbability"} == %"3"
 
   test "node remembers purchase status after restart":
     let expiry = (await provider.currentTime()) + 30
@@ -66,8 +67,8 @@ twonodessuite "Integration tests", debug1 = false, debug2 = false:
     client1.restart()
 
     check eventually (not isNil client1.getPurchase(id){"request"}{"ask"})
-    check client1.getPurchase(id){"request"}{"ask"}{"duration"} == %"0x1"
-    check client1.getPurchase(id){"request"}{"ask"}{"reward"} == %"0x2"
+    check client1.getPurchase(id){"request"}{"ask"}{"duration"} == %"1"
+    check client1.getPurchase(id){"request"}{"ask"}{"reward"} == %"2"
 
   test "nodes negotiate contracts on the marketplace":
     let size: uint64 = 0xFFFFF
@@ -83,7 +84,7 @@ twonodessuite "Integration tests", debug1 = false, debug2 = false:
     check client1.getPurchase(purchase){"error"} == newJNull()
     let availabilities = client2.getAvailabilities()
     check availabilities.len == 1
-    let newSize = UInt256.fromHex(availabilities[0]{"size"}.getStr)
+    let newSize = UInt256.fromDecimal(availabilities[0]{"size"}.getStr)
     check newSize > 0 and newSize < size.u256
 
   test "node slots gets paid out":

vendor/nim-ethers

@@ -1 +1 @@
-Subproject commit 18e225607cc6add166b93df6ac4229936a641318
+Subproject commit 0321e6d7bd9c703c9e9bf31ee8664adac1d6cbe7