blockchain-explorer | Hyperledger Explorer is a simple powerful easy-to-use | Blockchain library

by hyperledger JavaScript Version: v1.1.8 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(4)Vulnerabilities Install Support

kandi X-RAY | blockchain-explorer Summary

blockchain-explorer is a JavaScript library typically used in Blockchain applications. blockchain-explorer has no vulnerabilities, it has a Permissive License and it has medium support. However blockchain-explorer has 100 bugs. You can download it from GitHub.

Hyperledger Explorer is a simple, powerful, easy-to-use, well maintained, open source utility to browse activity on the underlying blockchain network. Users have the ability to configure and build Hyperledger Explorer on MacOS and Ubuntu. Update! Hyperledger Explorer now can be used with Hyperledger Iroha. For Iroha support, please switch to iroha-integration branch and read this README for instructions on how to use it.

Support

Quality

Security

License

Reuse

Support

blockchain-explorer has a medium active ecosystem.

It has 1185 star(s) with 848 fork(s). There are 101 watchers for this library.

It had no major release in the last 12 months.

There are 1 open issues and 0 have been closed. There are 7 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of blockchain-explorer is v1.1.8

Quality

blockchain-explorer has 100 bugs (0 blocker, 0 critical, 64 major, 36 minor) and 24 code smells.

Security

blockchain-explorer has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

blockchain-explorer code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

blockchain-explorer is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

blockchain-explorer releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

blockchain-explorer saves you 843 person hours of effort in developing the same functionality from scratch.

It has 1921 lines of code, 26 functions and 219 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed blockchain-explorer and discovered the below as its top functions. This is intended to give you an instant insight into blockchain-explorer implemented functionality, and help decide if they suit your requirements.

Register a swagger worker .
Checks if the service is reloaded .
Private methods .
A special effect to remove the theme s styling effects .
Removes transaction from the current transaction ID .
Unregister the service worker
Convert a string toInt .
map over props to object state
Convert to RGBA color
Converts a string of SHA - 256

Get all kandi verified functions for this library.

blockchain-explorer Key Features

No Key Features are available at this moment for blockchain-explorer.

blockchain-explorer Examples and Code Snippets

No Code Snippets are available at this moment for blockchain-explorer.

Community Discussions

Trending Discussions on blockchain-explorer

Get transaction details by TxID in hyperledger farbic

Hyperledger Fabric Version 2: How to query Block Header such as data hash, previous hash by using Fabric Node SDK 2.2

What is chaincode's transaction count

Hyperledger Explorer: How to call API from an client?

QUESTION

Get transaction details by TxID in hyperledger farbic

Asked 2021-Jun-09 at 05:06

I am currently running hyperledger fabric v2.2. I have developed the chaincode using the contractapi and developing the application using fabric-sdk-go/pkg/gateway

How can i get the transaction status and the transaction payload? I am aware of the GetHistoryByKey() which is available in the contractapi but that doesn't works out for my application.

I know there is hyperledger-explorer which can be used to search transactions by TxID but my use-case is my application will be querying by TxID and then it will verify the status of that particular transaction (TxID).

Also, i have tried to achieve this using the fabsdk but i am getting an error when i try to create instantiate the fabsdk using the fabsdk.New(). There seems to be some compatibility issue with the connection-profile.json which i am using the fabric-sample project.

The error which i am getting is:

failed to create identity manager provider: failed to initialize identity manager for organization: MyOrgName: Either a cryptopath or an embedded list of users is required

The same connection-profile has been used in getting the network up and running, and everything seems to be working all good. I am able to submit and evaluate transactions.

SOLUTION

The system chaincodes are embedded in the peer itself. so we need to set the target otherwise it would just give the discovery error since the contract QSCC is not explicitly deployed on the channel.

Make sure to check the core.yaml file channel.system - the system chaincode should be enabled channel.system.qscc: enable

...

ANSWER

Answered 2021-Jun-08 at 11:42

Your client application can use the client SDK appropriate to your pogramming language to evaluate the GetTransactionByID transaction function on the qscc system chaincode, which is available on all peers. This transaction function takes a transaction ID as its only argument and returns a peer.ProcessedTransaction protobuf, which contains the transaction envelope and a validation code.

Source https://stackoverflow.com/questions/67884056

QUESTION

Hyperledger Fabric Version 2: How to query Block Header such as data hash, previous hash by using Fabric Node SDK 2.2

Asked 2021-Mar-23 at 10:30

I am trying to build a decentralized app that able to do show the block header like data hash, the previous hash of the block when a user submits a new transaction. However, It seems like the new version of Fabric Node SDK 2.2 removes the function queryblock.

I refer on the documentation at https://hyperledger.github.io/fabric-sdk-node/release-2.2/module-fabric-network.html and currently still looking for some workaround to show the block info of the user's transaction.

The ideal output that I wish to achieved is almost similar to what Hyperledger Explorer provide.The reference can be check at:

https://github.com/hyperledger/blockchain-explorer

which show the information such as Number of Blocks, Data Hash, Previous Hash and other Block Information regarding the hash.

Some information that I able to gather

There are some information like BlockEvent that have the name blockData in the interface BlockEvent. However, I can't seem to find it when npm install i fabric-network.
- https://hyperledger.github.io/fabric-sdk-node/release-2.2/module-fabric-network.BlockEvent.html
Since the user can query and check their hash with the ledger, a key or hash need to be returned to the user upon transaction success. Is there any API function for this? So far, I able to found there are getTransactionId() in the class Transaction. But is this one that I need to use?
- https://hyperledger.github.io/fabric-sdk-node/release-2.2/module-fabric-network.Transaction.html

StackOverflow reference that I had gone over:

All of the reference since to deal with the old version of node SDK which is version 1.4.

...

ANSWER

Answered 2021-Mar-23 at 10:30

You can query block number by call function GetBlockByNumber of qscc contract. Example:

Source https://stackoverflow.com/questions/66560539

QUESTION

What is chaincode's transaction count

Asked 2020-Jun-17 at 06:52

This is what my network setup.

peer1.org1.example.com
peer1.org2.example.com
peer0.org1.example.com
peer0.org2.example.com
ca_peerOrg2
ca_peerOrg1
orderer.example.com

After instantiation of my chaincode, I am getting transaction count as 0 in chaincode's tab in hyperledger fabric explorer. But It is 4 in dashboard and channel's tab. What is the reason? Can someone please explain?

...

ANSWER

Answered 2020-Jun-17 at 06:12

The instantiation of the chaincode is a transaction itself. So for each one of the peers that you instantiate a chaincode you will have a transaction.

Source https://stackoverflow.com/questions/62419602

QUESTION

Hyperledger Explorer: How to call API from an client?

Asked 2020-Jan-15 at 11:51

My server is already configured for CORS and it is running in other react-redux application.

Now I am trying to call a sample API from Hyperledger Explorer. I've written a function for calling to my API server. The code for calling my API server is given here:

...

ANSWER

Answered 2020-Jan-15 at 11:51

It is configured that we can't fetch any content from another server. So I created a router function inside app/rest/ folder. Then I call that router function from client side. Just replaced agent.post('http://103.23.42.198:9099/api/certificate/list') with post('/api/certificate/list'). Here post is imported from '../../../services/request'.

Source https://stackoverflow.com/questions/59734771

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install blockchain-explorer

Modify app/explorerconfig.json to update PostgreSQL database settings. Important repeat after every git pull (in some case you may need to apply permission to db/ directory, from blockchain-explorer/app/persistence/fabric/postgreSQL run: chmod -R 775 db/.
Modify app/explorerconfig.json to update PostgreSQL database settings. "postgreSQL": { "host": "127.0.0.1", "port": "5432", "database": "fabricexplorer", "username": "hppoc", "passwd": "password" } Another alternative to configure database settings is to use environment variables, example of settings: export DATABASE_HOST=127.0.0.1 export DATABASE_PORT=5432 export DATABASE_DATABASE=fabricexplorer export DATABASE_USERNAME=hppoc export DATABASE_PASSWD=pass12345 Important repeat after every git pull (in some case you may need to apply permission to db/ directory, from blockchain-explorer/app/persistence/fabric/postgreSQL run: chmod -R 775 db/
Important: repeat the below steps after every git pull.
./main.sh install To install, run tests, and build project
./main.sh clean To clean the /node_modules, client/node_modules client/build, client/coverage, app/test/node_modules directories