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problem: no response from proxy if upstream returned error

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fix: #35
This commit is contained in:
Igor Artamonov
2020-07-20 00:30:52 -04:00
parent 1cca38a7bc
commit 8cefcbdb5e
29 changed files with 870 additions and 71 deletions
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6
testing/simple-upstream/README.adoc Normal file
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= Simple Testing Upstream
.Run from current directory
----
./gradlew run
----

22
testing/simple-upstream/build.gradle Normal file
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plugins {
id 'java'
id 'groovy'
id 'idea'
id 'application'
}
repositories {
mavenLocal()
mavenCentral()
}
dependencies {
implementation "com.sparkjava:spark-core:2.9.1"
implementation "org.codehaus.groovy:groovy:3.0.4"
implementation "com.fasterxml.jackson.core:jackson-core:2.9.8"
implementation "com.fasterxml.jackson.core:jackson-databind:2.9.8"
}
application {
mainClassName = 'testing.SimpleUpstream'
}

BIN
testing/simple-upstream/gradle/wrapper/gradle-wrapper.jar vendored Normal file
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5
testing/simple-upstream/gradle/wrapper/gradle-wrapper.properties vendored Normal file
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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-6.5.1-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

185
testing/simple-upstream/gradlew vendored Executable file
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#!/usr/bin/env sh
#
# Copyright 2015 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin or MSYS, switch paths to Windows format before running java
if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=`expr $i + 1`
done
case $i in
0) set -- ;;
1) set -- "$args0" ;;
2) set -- "$args0" "$args1" ;;
3) set -- "$args0" "$args1" "$args2" ;;
4) set -- "$args0" "$args1" "$args2" "$args3" ;;
5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=`save "$@"`
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
exec "$JAVACMD" "$@"

104
testing/simple-upstream/gradlew.bat vendored Normal file
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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto init
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:init
@rem Get command-line arguments, handling Windows variants
if not "%OS%" == "Windows_NT" goto win9xME_args
:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2
:win9xME_args_slurp
if "x%~1" == "x" goto execute
set CMD_LINE_ARGS=%*
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

1
testing/simple-upstream/settings.gradle Normal file
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rootProject.name = 'dschackle-testing-simple-upstream'

39
testing/simple-upstream/src/main/groovy/testing/BlocksHandler.groovy Normal file
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package testing
import com.fasterxml.jackson.databind.ObjectMapper
class BlocksHandler implements CallHandler {
ObjectMapper objectMapper
BlocksHandler(ObjectMapper objectMapper) {
this.objectMapper = objectMapper
}
@Override
Result handle(String method, List<Object> params) {
if (method == "eth_blockNumber") {
return Result.ok("0x100001")
}
if (method == "eth_getBlockByNumber") {
String blockId = params[0]
println("get block $blockId")
def result = getResource("block-${blockId}.json")
return Result.ok(result)
}
if (method == "eth_getTransactionByHash") {
String txId = params[0]
def result = getResource("tx-${txId}.json")
return Result.ok(result)
}
return null
}
Object getResource(String name) {
String json = BlocksHandler.class.getResourceAsStream("/" + name)?.text
if (json == null) {
return null
}
return objectMapper.readValue(json, Map)
}
}

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testing/simple-upstream/src/main/groovy/testing/CallHandler.groovy Normal file
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package testing
interface CallHandler {
Result handle(String method, List<Object> params)
static class Result {
private Object result
private Integer errorCode
private String errorMessage
Result(Object result, Integer errorCode, String errorMessage) {
this.result = result
this.errorCode = errorCode
this.errorMessage = errorMessage
}
static Result ok(Object result) {
return new Result(result, null, null)
}
static Result error(int errorCode, String errorMessage) {
return new Result(null, errorCode, errorMessage)
}
boolean isResult() {
return errorCode == null
}
Object getResult() {
return result
}
int getErrorCode() {
return errorCode
}
String getErrorMessage() {
return errorMessage
}
}
}

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testing/simple-upstream/src/main/groovy/testing/CommonHandlers.groovy Normal file
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package testing
class CommonHandlers implements CallHandler {
@Override
Result handle(String method, List<Object> params) {
if (method == "eth_syncing") {
return Result.ok(false)
}
return null
}
}

8
testing/simple-upstream/src/main/groovy/testing/InvalidCallHandler.groovy Normal file
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package testing
class InvalidCallHandler implements CallHandler {
@Override
Result handle(String method, List<Object> params) {
return Result.error(-32000, "Call is not supported")
}
}

62
testing/simple-upstream/src/main/groovy/testing/SimpleUpstream.groovy Normal file
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package testing
import com.fasterxml.jackson.databind.ObjectMapper
import spark.Spark
class SimpleUpstream {
private int port = 18545
private ObjectMapper objectMapper
private List<CallHandler> handlers = []
void prepare() {
objectMapper = new ObjectMapper()
handlers << new TestcaseHandler()
handlers << new CommonHandlers()
handlers << new BlocksHandler(objectMapper)
handlers << new InvalidCallHandler()
}
void start() {
println("Starting upstream on 0.0.0.0:$port")
Spark.port(port)
Spark.post("/") { req, resp ->
println("request")
try {
Map json = objectMapper.readValue(req.body(), Map)
def id = json["id"]
String method = json["method"].toString()
List<Object> params = json.containsKey("params") ? json["params"] as List<Object> : []
CallHandler.Result result = handlers.findResult { h ->
return h.handle(method, params)
}
Map resultJson = [
id : id,
jsonrpc: "2.0"
]
if (result.isResult()) {
resultJson["result"] = result.result
} else {
resultJson["error"] = [
code : result.getErrorCode(),
message: result.getErrorMessage()
]
}
resp.status(200)
resp.header("content-type", "application/json")
return objectMapper.writeValueAsString(resultJson)
} catch (Throwable t) {
t.printStackTrace()
}
}
}
public static void main(String[] args) {
def server = new SimpleUpstream()
server.prepare()
server.start()
}
}

14
testing/simple-upstream/src/main/groovy/testing/TestcaseHandler.groovy Normal file
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package testing
class TestcaseHandler implements CallHandler {
@Override
Result handle(String method, List<Object> params) {
// https://github.com/emeraldpay/dshackle/issues/35
if (method == "eth_call"
&& params[0].to?.toLowerCase() == "0x542156d51D10Db5acCB99f9Db7e7C91B74E80a2c".toLowerCase()) {
return Result.error(-32015, "VM execution error.")
}
return null
}
}

25
testing/simple-upstream/src/main/resources/block-0x100000.json Normal file
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{
"difficulty": "0xc6d2fa46fd6",
"extraData": "0xd783010400844765746887676f312e352e31856c696e7578",
"gasLimit": "0x2fefd8",
"gasUsed": "0xa410",
"hash": "0x9a834c53bbee9c2665a5a84789a1d1ad73750b2d77b50de44f457f411d02e52e",
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"miner": "0x68795c4aa09d6f4ed3e5deddf8c2ad3049a601da",
"mixHash": "0x72224fd0b7b32d0fea13f2953eba28d2512af43632725ed75583dd30e42dfc64",
"nonce": "0xf1a453a44f9de627",
"number": "0x100000",
"parentHash": "0x2dcaf9a8a3fd329d925eb47c1f22022d4f2d562500e546d878bad4247d013858",
"receiptsRoot": "0x178000485de197ed06a4ebada431864e5b564b43f994fb8888521f74b4b3257b",
"sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"size": "0x303",
"stateRoot": "0xeaddaa0b6b673ba3f8cb7235ca656340ccf703295cf5252cb04a4202c47252c2",
"timestamp": "0x56cc7b73",
"totalDifficulty": "0x6bab93cdf810b22a",
"transactions": [
"0x01c5a8461d06c2c195035c148af0f871c7679841d86ae5bb98676bb2d8e68dfa",
"0xb4216e88df6ebfe666bbe43370d1ddfe8d9c1975d2b8375a522700f7f59c3ed0"
],
"transactionsRoot": "0x91d9b419b34a790cc2a7d59c6b95e57ccc5ec9bc1034ce9510dfb551d3049c93",
"uncles": []
}

25
testing/simple-upstream/src/main/resources/block-0x100001.json Normal file
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{
"difficulty": "0xc6ba1fe7c49",
"extraData": "0xd783010400844765746887676f312e352e31856c696e7578",
"gasLimit": "0x2fefd8",
"gasUsed": "0xa410",
"hash": "0x18c68d9ba58772a4409d65d61891b25db03a105a7769ae08ef2cff697921b446",
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"miner": "0x0c729be7c39543c3d549282a40395299d987cec2",
"mixHash": "0xf8679fe0f04d5aad4844694cc8fb1a1b97482a5822658379c9bb8633f91daf97",
"nonce": "0x347a267c0ec88618",
"number": "0x100001",
"parentHash": "0x9a834c53bbee9c2665a5a84789a1d1ad73750b2d77b50de44f457f411d02e52e",
"receiptsRoot": "0x4f4ed1139baadbd4506d6b0c330335d2108715095fb93fd282bd69aa9edc09eb",
"sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"size": "0x304",
"stateRoot": "0xee13382462fcd5748a403ca131c38e871fa7206bca2b962f67b59e800741daa3",
"timestamp": "0x56cc7b8c",
"totalDifficulty": "0x6baba0399a0f2e73",
"transactions": [
"0x146b8f4b6300c73bb7476359b9f1c5ee3f686a86b2aa673552cf0f9de9a42e77",
"0xe589a39acea3091b584b650158d08b159aa07e97b8e8cddb8f81cb606e13382e"
],
"transactionsRoot": "0xc90078e2af52aef81815cb2a71c22ebd781dd658dd953d9df57f7769a0b2fe51",
"uncles": []
}

16
testing/simple-upstream/src/main/resources/tx-0x01c5a8461d06c2c195035c148af0f871c7679841d86ae5bb98676bb2d8e68dfa.json Normal file
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{
"blockHash": "0x9a834c53bbee9c2665a5a84789a1d1ad73750b2d77b50de44f457f411d02e52e",
"blockNumber": "0x100000",
"from": "0x68795c4aa09d6f4ed3e5deddf8c2ad3049a601da",
"gas": "0x15f90",
"gasPrice": "0xba43b7400",
"hash": "0x01c5a8461d06c2c195035c148af0f871c7679841d86ae5bb98676bb2d8e68dfa",
"input": "0x",
"nonce": "0x2f31",
"r": "0x1d263f32de00456cbc3e4099c623a6ca48e3188f01dd16461687512f8c3bb7d6",
"s": "0x62629f42a98f7c5fa60f8c3630cf67b5eb4772e0ff65a458d2116c15e22d6451",
"to": "0xdae787ec66e65c60ad35203800b97b45fcb0f909",
"transactionIndex": "0x0",
"v": "0x1b",
"value": "0x2b81097c919a9e000"
}

16
testing/simple-upstream/src/main/resources/tx-0x146b8f4b6300c73bb7476359b9f1c5ee3f686a86b2aa673552cf0f9de9a42e77.json Normal file
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{
"blockHash": "0x18c68d9ba58772a4409d65d61891b25db03a105a7769ae08ef2cff697921b446",
"blockNumber": "0x100001",
"from": "0x2a65aca4d5fc5b5c859090a6c34d164135398226",
"gas": "0x15f90",
"gasPrice": "0xba43b7400",
"hash": "0x146b8f4b6300c73bb7476359b9f1c5ee3f686a86b2aa673552cf0f9de9a42e77",
"input": "0x",
"nonce": "0x32c13",
"r": "0xe6ca408c2e91163b46c6bb66054a000a25b6c1d8024460499a185ab2e4bb41a0",
"s": "0x53bc43662fda46c2e7051fa704b75ec815e9102cca5400817011ffd99e77139d",
"to": "0x7388ae5bc873163025fffe5956322f734f9b570d",
"transactionIndex": "0x0",
"v": "0x1b",
"value": "0xe660f79cf5e4800"
}

16
testing/simple-upstream/src/main/resources/tx-0xb4216e88df6ebfe666bbe43370d1ddfe8d9c1975d2b8375a522700f7f59c3ed0.json Normal file
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{
"blockHash": "0x9a834c53bbee9c2665a5a84789a1d1ad73750b2d77b50de44f457f411d02e52e",
"blockNumber": "0x100000",
"from": "0x68795c4aa09d6f4ed3e5deddf8c2ad3049a601da",
"gas": "0x15f90",
"gasPrice": "0xba43b7400",
"hash": "0xb4216e88df6ebfe666bbe43370d1ddfe8d9c1975d2b8375a522700f7f59c3ed0",
"input": "0x",
"nonce": "0x2f32",
"r": "0xc25ceef654cd3bd734201fc08589970e0663431121bc47cc4a70335e072b09c0",
"s": "0x1c67b037a59a8f5badde3a7eb586d7888dcf6dad64aabb080c4c0db593a91254",
"to": "0x04a2a3ee9c9ea82e1f918ece209f8a7e6d7521e7",
"transactionIndex": "0x1",
"v": "0x1c",
"value": "0x377fb2f2cbd73c00"
}

16
testing/simple-upstream/src/main/resources/tx-0xe589a39acea3091b584b650158d08b159aa07e97b8e8cddb8f81cb606e13382e.json Normal file
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{
"blockHash": "0x18c68d9ba58772a4409d65d61891b25db03a105a7769ae08ef2cff697921b446",
"blockNumber": "0x100001",
"from": "0x2a65aca4d5fc5b5c859090a6c34d164135398226",
"gas": "0x15f90",
"gasPrice": "0xba43b7400",
"hash": "0xe589a39acea3091b584b650158d08b159aa07e97b8e8cddb8f81cb606e13382e",
"input": "0x",
"nonce": "0x32c14",
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