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Blockchain explorer for NEO

Home Page: https://neoscan.io

License: MIT License

JavaScript 3.00% CSS 8.99% Elixir 81.20% HTML 6.70% Shell 0.08% Dockerfile 0.03%

neo-scan's Introduction

Neoscan

Elixir + Phoenix Blockchain explorer for NEO

How to Contribute
Run Docker
Run Tests
Raise Main Net Phoenix
Raise Test Net Phoenix
PostgreSQL Fu
Learn More

How to Contribute

To run, first install Elixir and Phoenix at:

Development

Please run the tests after any changes
Please run the formatter after any changes mix format (you can use precommit hook: https://github.com/jasongoodwin/elixir-mix-format-pre-commit-hook)

Run Docker

You can skip this section if you do not wish to run docker.

Using docker you can start the project with:

docker-compose up -d
docker exec -it phoenixdev sh
cd /data

Run Tests

To run the tests:

Install dependencies with mix deps.get --only test
Create and migrate your database with MIX_ENV=test mix ecto.create && mix ecto.migrate
Run mix test

Raise Main Net Phoenix

To start the Application/Phoenix server:

Install dependencies with mix deps.get
Create and migrate your database with mix ecto.create && mix ecto.migrate
Install Node.js dependencies with cd apps, cd neoscan_web, then cd assets && npm install
Start Phoenix endpoint with mix phx.server

Raise Test Net Phoenix

To start the Application/Phoenix server:

Install dependencies with mix deps.get
Create and migrate your database with mix ecto.create && mix ecto.migrate
Install Node.js dependencies with cd apps, cd neoscan_web, then cd assets && npm install
Start Phoenix endpoint with NEO_SEEDS="https://seed1.neo.org:20331;http://seed2.neo.org:20332" mix phx.server

Now you can visit localhost:4000 from your browser.

Make sure the username and password for your PostgreSQL match the contents of "apps/neoscan/config/dev.exs"

PostgreSQL Fu

Dump your database with pg_dump, i.e.,

To tarball:

pg_dump -U postgres -h localhost -W -F t neoscan_dev > neoscan_dev_testnet.tar

To file:

pg_dump -U postgres -h localhost -W neoscan_dev > neoscan_dev_testnet

Restore:

pg_restore --dbname=neoscan_dev --verbose neoscan_dev_testnet.tar

Notes

Docker runs as root so if you go back and forth between source repository and docker style execution you will need to be mindful to chown any files that were created. These can easily be found when you see a permission denied error on some build step.

Learn more

Official website: http://www.phoenixframework.org/
Guides: http://phoenixframework.org/docs/overview
Docs: https://hexdocs.pm/phoenix
Mailing list: http://groups.google.com/group/phoenix-talk
Source: https://github.com/phoenixframework/phoenix

neo-scan's People

Contributors

Stargazers

Watchers

Forkers

johndpope famecoin dvdschwrtz-zz chanhpark treble37 tanitall samuelcastro mbenatti vladucu riccardomarotti bneiluj nat1988 evgenyboxer telcy qingmingzi surfswift213us stevenjack sirius248 containerman17 leadaenima slipo pbanimus timloh-gtoken msied cc1776 woodehh verisfoundation peterlinx keith-cy jmsaulnier iddobergersf ianaz isc-labs happyastronaut hello2all jwcastillo my-wallet neskoskin aphtoken beethovenw sweko kizzx2 mygirl8893 yongjiema kevaundray mobileaws ephdtrg mywishplatform uvmetal truongtrau hal0x2328 cronfoundation logikonline sean-xiao-zhao7 vincentgeneste localhuman neo-development fstepho spasma fducom guardaco edgedlt kenvindev

neo-scan's Issues

[TestNet] Error 500 after going to address page

Environment:
Win 10 Home (64 bit) Version 1709 Build 16299.371

Browser:
Chrome 66.0.3359.139 (64 bit)

Example url:
https://neoscan-testnet.io/address/AK6SD7ZuZZkNPDi5SX9WkeELReob6tPBXQ

Description:
Getting internal server error after going to my personal address page.

** (UndefinedFunctionError) function Poison.encode!/1 is undefined (module Poison is not available)

no poison module?

add method for transactions get_last_transactions_by_address

pls add method for transactions get_last_transactions_by_address

Names of currencies are not visible in drop-down under graph before mouse hover

Environment:
Win 10 Home (64 bit) Version 1709 Build 16299.371

Browsers:
Chrome 66.0.3359.139 (64 bit)
Microsoft Edge 41.16299.371.0 (16.16299)

Example url:
https://neoscan.io/address/AQqGGzkDmKChdBx3Jtx1MiZHhn8hvTsxi9

Description:
Names of currencies are not visible in drop-down under graph. They're visible after hovering on them with mouse.

Screenshots:
Chrome:

Edge:

rename repository

@lucianoengel can you rename the repository to follow the informal standard for the case ?
something like: neoscan, neo-scan or neo-explorer

[TestNet] Error 500 after going to addresses page

Environment:
Win 10 Home (64 bit) Version 1709 Build 16299.371

Browser:
Chrome 66.0.3359.139 (64 bit)

Example url:
https://neoscan-testnet.io/addresses/1

Description:
Getting internal server error after going to addresses page.

Inccorrect gas reported

http://testnet-api.wallet.cityofzion.io/v2/address/claims/ALfnhLg7rUyL6Jr98bzzoxz5J7m64fbR4s

{
    "address": "ALfnhLg7rUyL6Jr98bzzoxz5J7m64fbR4s",
    "claims": [
        {
            "claim": 232522,
            "end": 867240,
            "index": 0,
            "start": 844201,
            "sysfee": 48210,
            "txid": "4536a2539babf4b4b29e308bc396dc23e407232a5ae88a5ca028d47bd80653c2",
            "value": 1
        }
    ],
    "net": "TestNet",
    "total_claim": 232522,
    "total_unspent_claim": 108267556
}

https://neoscan-testnet.io/api/test_net/v1/get_claimable/ALfnhLg7rUyL6Jr98bzzoxz5J7m64fbR4s

{
    "claimable": [
        {
            "value": 1,
            "unclaimed": 0.00232514,
            "txid": "4536a2539babf4b4b29e308bc396dc23e407232a5ae88a5ca028d47bd80653c2",
            "start_height": 844201,
            "n": 0,
            "end_height": 867240
        }
    ],
    "address": "ALfnhLg7rUyL6Jr98bzzoxz5J7m64fbR4s"
}

Note the difference in claim and unclaimed. They should have the same numbers. I believe that neoscan is wrong because the NEO node is rejecting my tx created by the neoscan data.
Have not tried to claim gas with neonDB data tho. I will leave this in this state for as long as possible.

Block 1,952,187 not fully processed

We noticed that one of our balances isn't displaying correctly on neoscan:

https://neoscan.io/address/AZXKdEc2M73qeQMmPj2zmKJFDWmzQf8Gyr

It's short 1 NEO. Neoscan is currently showing a balance of 361 NEO, but the actual balance is 362 (and a local neo-python node confirms this). I've tracked it down to block 1,952,187, which apparently didn't get processed fully:

https://neoscan.io/block/64f9b553f89b48305f8d4bc4879624d4abb35659830f2c4ce856fc7e4dce037b

It reports 29 transactions in the block (which is correct), but page 2 of transactions shows no results:

https://neoscan.io/block/64f9b553f89b48305f8d4bc4879624d4abb35659830f2c4ce856fc7e4dce037b/2

In particular, here's our transaction that is missing, which is throwing off the address balance:

https://neoscan.io/transaction/6eda62442a3f5ae98f6520b6118760060ec7e0a4480729e0f6c9aa59e747ae39

Note that this transaction does not show up in the address' transaction list, as you'd probably expect since that transaction seems to not have been imported properly.

How can I get historic wallet amount?

The API has not the function of get historic wallet amount. How can I get historic wallet amount?

[TestNet] Error 500 after going to transaction page

Environment:
Win 10 Home (64 bit) Version 1709 Build 16299.371

Browser:
Chrome 66.0.3359.139 (64 bit)

Description:
In most cases I'm getting internal server error after going to transaction pages. While going through "Last 5 Transactions" section and opening each transaction it seems that some of them works and some don't. I've found three different states of transaction pages:

Internal server error
Working properly
Empty transaction (?)

Examples:

NEP-5 negative balance for smart contract addresses

Just discovered negative balances on two of our smart contract addresses:

https://neoscan.io/address/AZXKdEc2M73qeQMmPj2zmKJFDWmzQf8Gyr
https://neoscan.io/address/AepnUu5Aq4rhgejET6QFegxFR1HDScbTyK

They're showing negative balances of -33,232,532.0 and -1.26292e7, respectively. Those are actually the total supply values for the NRVE and NRV tokens, so it looks like neoscan is treating the mint operations as debits from a 0 balance.

Unclaimed Amount Calculation

Add support for unclaimed gas calculation.

Python Reference: https://github.com/CityOfZion/neon-wallet-db/blob/master/api/util.py

Replace "Neo Slack" link in footer with "Neo Discord"

As of December 10, 2017 CoZ moved its NEO community chat from slack to discord. The neoscan_web app needs to be updated to reflect this: https://www.reddit.com/r/NEO/comments/7is3oz/neo_slack_moving_to_discord/

I attempted this on my own, but there appears to be some non-standard knowledge involved with how the svg is generated, and how .po files are generated from .pot. Seems like low-hanging fruit for the original contributor @lucianoengel

Wrong claim numbers

During testing for neon-js, I noticed that the claim numbers are wrong for neoscan.

https://neoscan.io/api/main_net/v1/get_claimable/ATsmYxUsJaU1AcZm3RCcTAhrvYUNMPaCvq:

{
    "claimable": [
        {
            "value": 825,
            "unclaimed": 6.50298,
            "txid": "9adfbd49621c45bae64e8f11e2cd9a42c5330d9f39220390d6b7b5081bf606f6",
            "start_height": 1485981,
            "n": 0,
            "end_height": 1584386
        },
        {
            "value": 30,
            "unclaimed": 0.0208548,
            "txid": "d24f3a0d7d62d08165b30be5a0352f1bcf883be6cee182c125bc2138c2a17ceb",
            "start_height": 1575820,
            "n": 0,
            "end_height": 1584386
        },
        {
            "value": 25,
            "unclaimed": 0.175424,
            "txid": "bae94b0741a1982b0a1d1246fcfa62f88e3b746f89856f91efcd3db6b519e790",
            "start_height": 1496799,
            "n": 0,
            "end_height": 1584386
        },
        {
            "value": 29,
            "unclaimed": 0.13658043,
            "txid": "8d287bee9482a64e4b5034feddfb12611229bc7e7ebefbea8830dba73ff6f3b7",
            "start_height": 1525639,
            "n": 0,
            "end_height": 1584386
        }
    ],
    "address": "ATsmYxUsJaU1AcZm3RCcTAhrvYUNMPaCvq"
}

http://api.wallet.cityofzion.io/v2/address/claims/ATsmYxUsJaU1AcZm3RCcTAhrvYUNMPaCvq

{
    "address": "ATsmYxUsJaU1AcZm3RCcTAhrvYUNMPaCvq",
    "claims": [
        {
            "claim": 650291400,
            "end": 1584386,
            "index": 0,
            "start": 1485981,
            "sysfee": 992,
            "txid": "9adfbd49621c45bae64e8f11e2cd9a42c5330d9f39220390d6b7b5081bf606f6",
            "value": 825
        },
        {
            "claim": 17542200,
            "end": 1584386,
            "index": 0,
            "start": 1496799,
            "sysfee": 992,
            "txid": "bae94b0741a1982b0a1d1246fcfa62f88e3b746f89856f91efcd3db6b519e790",
            "value": 25
        },
        {
            "claim": 13657811,
            "end": 1584386,
            "index": 0,
            "start": 1525639,
            "sysfee": 983,
            "txid": "8d287bee9482a64e4b5034feddfb12611229bc7e7ebefbea8830dba73ff6f3b7",
            "value": 29
        },
        {
            "claim": 2085240,
            "end": 1584386,
            "index": 0,
            "start": 1575820,
            "sysfee": 980,
            "txid": "d24f3a0d7d62d08165b30be5a0352f1bcf883be6cee182c125bc2138c2a17ceb",
            "value": 30
        }
    ],
    "net": "MainNet",
    "total_claim": 683576651,
    "total_unspent_claim": 36360
}

I would assume neon-wallet-db is giving the correct numbers because I have counter checked it with neo-gui:

npm install apps/neoscan_web/assets

apps/neoscan_web/assets

Front End Design

Start implementation of the design concept
Explorer_Concepts_01.pdf

Why can't I get a right transaction history in the test net?

My address: AR4iFxFdbjTkHKtStSKRvu5bgXXBcpZx9D

https://neoscan-testnet.io/api/test_net/v1/get_address_abstracts/AR4iFxFdbjTkHKtStSKRvu5bgXXBcpZx9D/1

Add support for NEP5 tokens

Error after starting the app second time

Once I pulled the app and then restarted....started seeing this constraint error

Can you confirm this is an issue or is it just me doing something crazy?

Fix credo

credo should pass with mix credo --strict
Add credo to the travis pipeline

Elixir VM

Create a functional Elixir neo VM, as neo-python. A wrapper is fine.

Really slow response time

28s for an API call is pretty significant and might be related to your recent updates since it wasnt that slow previously.

But just to put it out there, the previous timing was still lagging quite a bit behind neon-wallet-db speed. (we talking about 2s here)

the nep5 transcation is not correct

https://neoscan.io/transaction/20a75e9da1d7d1d9a5a73f9fd75a510cc78831a69fdc0d6ce1c5185d96f19a79

the transaction have not transfered tokens

Add support for SC registered assets

Export transactions to CSV

add option to export all tx from an address, for tax purposes

Warning on build should be fixed

Fix warning
add error on warning on mix.exs file to prevent future warnings

elixirc_options: [
        warnings_as_errors: true
      ],

Show NEP-5 symbol next to balance

It's awesome that neoscan supports NEP-5 tokens now. Nice work! One added touch that would be nice is if you displayed the token symbol next to the balance since people will be used to seeing the symbol (and not necessarily always the token name). I think it's cool having the token name as the header as you have right now, but it might be a nice added touch to show the symbol next to the balance displayed. 👍

Add unspent vouts to get_balance method

In order to build a transaction, unspent information is required.

pending GAS transaction for > 3 days

I sent 4.64224 GAS, on 2018-03-29 | 18:23:56, from Binance to Kucoin at AceWB7eDJsDZiJ99cUx6xbE341B9hs1v8s and it still has only 4 confirmations from 6 minimum required. Txid:89b27789d08720386e738d3661d022e52826aa0097c9add798c0516981fdb328
https://neoscan.io/transaction/89b27789d08720386e738d3661d022e52826aa0097c9add798c0516981fdb328

How to deploy with docker

Thx for this project.

I'm not very familiar to docker so I follow the guide which works well locally

docker-compose up -d
docker exec -it neoscan_phoenix_1 sh
cd /data
mix deps.get
mix ecto.create && mix ecto.migrate

Then I got an error The database for Neoscan.Repo couldn't be created: an exception was raised: which seems to require neoscan_* in postgres docker.

Then the question is:

How can I create the db in docker.

Thx again.

** (Mix) The database for Neoscan.Repo couldn't be created: an exception was raised:

Anyone know about this?

Create Script Builder For InvokeScript Calls

Improve the current state of elixir vm by creating an script builder for InvokeScrip calls.

example in JS: https://github.com/CityOfZion/neon-js/blob/master/src/sc/ScriptBuilder.js

Should be able to make a sucessfull rpc InvokeScript call for any token information.

Fix Travis CI build

Details in https://travis-ci.org/CityOfZion/neo-scan/builds

Add metas for SEO

If we search for neo-scan on google first link is the github project.
We should add the basics meta title and description.

Monitor worker dies on too many connection_timeouts

When there's too many connection_timeouts the monitor starts killing nodes without testing. Probably related with the GenStage consumer recursively trying to fetch the data from the available nodes. On restarting the server, the monitor refill the nodes list and they seem fine.

Incorrect ordering of outputs

The outputs on neoscan is ordered incorrectly.

Doing a POST to a NEO node for tx 60e2711319c1453d8de0ca8268b6ba9ced1d0c0c581c49d26e6efd4b75dccb24 yields:

{
        "vout": [
            {
                "n": 0,
                "asset": "0x602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7",
                "value": "0.1",
                "address": "ALq7AWrhAueN6mJNqk6FHJjnsEoPRytLdW"
            },
            {
                "n": 1,
                "asset": "0x602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7",
                "value": "0.005554",
                "address": "ALq7AWrhAueN6mJNqk6FHJjnsEoPRytLdW"
            }
        ],
...
}

However, on neoscan, it is displayed as:

This is not important to a normal end-user as the order would not matter to them. However, on the technical side, the coins are referenced by their txid and their index in this vout list. Thus, it would be good for it to be in the order specified for this to be useful for devs to look at.

Similarly, this could be done for the inputs. (so far I havnt have a use for that but consistency is nice)

TLDR: Please display the outputs as they are ordered in the transaction vout as it is important to the developer.

Where is the Assets in NEOSCAN?

How to search the assets in NEOSCAN?

I can find the assets（资产）a few days ago, but I cannot find it now!

I want to search the token hash, how can I do this?

Add API for getting unclaimed transactions

In order to build claimTransactions easily, I will need the following information:

Transaction ID
Amount of gas claimable from this transaction

The amt of gas claimable can be calculated by taking the difference between the block that generated the coin and the block that spent the coin.

EG:
http://testnet-api.wallet.cityofzion.io/v2/address/claims/ALq7AWrhAueN6mJNqk6FHJjnsEoPRytLdW

The total_claim property at the end is useful but not necessary.

Chart not showing correctly

In some cases the chart isn't showing correctly.

For ex: https://neoscan.io/address/Aesadb7bQWWHRPqikF9ikZgTMRf8DpQdTe

Google Chrome Version 65.0.3325.181

Design Better GenStage Pipeline

The current blockchain synchronization process uses a GenStage pipeline as follows:

The problem is that a block don't have a maximum transactions count, neither transactions have a maximum number of inputs or outputs. Blocks with a great amount of transactions or with big transactions therefore flood memory with too many operations. A good pipeline design I believe, should ask for a maximum demand of addresses to update, which would ask for outputs, inputs and claims, which would ask for transactions and them for blocks. However, each stage doesn't know how many transactions/blocks it should ask for to fulfill the demand, so there must be a queue for each.

Missing MIT license

All CoZ repos need to have an MIT license.

Tx inputs and outputs hidden when too many

This is a transaction with 2560inputs :)

This is a transaction with 1000 outputs :)

The list of inputs/outputs cuts off at about 15th item on the list without any way to look at the rest. Inspecting the HTML shows that the rest of the list actually exists but is just hidden.

Add Support for TestNet

Consider solutions for testnet support.
-Dual DB;
-Prefix Tables;
-Individual Applications;
-Others?

Block count -1 + tx page error.

Trying to run latest master in docker connected to the privnet image and seeing this:

In console it seems to index all the blocks tho..

Also at http://localhost:4000/transactions/1 I see:

BadMapError at GET /transactions/1
expected a map, got: nil

Example url:
https://neoscan-testnet.io/transactions/1

Description:
Getting internal server error after going to transactions page.

Inferno doesn't render changes

It shouldn't need the setInterval() function on apps/neoscan_web/assets/js/home_app.js

window.onload = function () {
  if (window.location.pathname === '/') {
    let payload = {
      blocks: [],
      transactions: []
    }
    let home = new HomeSocket(payload)

    setInterval(function () {
      Inferno.render((
        <List class='collection' sync={false} data={home.payload.blocks} rowHeight={15} rowRender={blockRow} />
      ), blocksContainer)
      Inferno.render((
        <List class='collection' sync={false} data={home.payload.transactions} rowHeight={15} rowRender={transactionRow} />
      ), transactionsContainer)
    }, 500)
    home.connect()
  }
}

tx fee values display

From my visual inspection (haven't looked into the code), it seems like neo-scan displays no decimal places for fees.
Because of that I see an issue for example with displaying following tx: https://neoscan.io/transaction/c920b2192e74eda4ca6140510813aa40fef1767d00c152aa6f8027c24bdf14f2

In: 40
Out 39.999
Net fee displays zero but is 0.001.

cityofzion / neo-scan Goto Github PK

neo-scan's Introduction

Neoscan

Contents

How to Contribute

Development

Run Docker

Run Tests

Raise Main Net Phoenix

Raise Test Net Phoenix

PostgreSQL Fu

Notes

Learn more

neo-scan's People

Contributors

Stargazers

Watchers

Forkers

neo-scan's Issues

Recommend Projects

Recommend Topics

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