bigchaindb | The blockchain database | Blockchain library

 by   bigchaindb Python Version: v2.2.2 License: Apache-2.0

kandi X-RAY | bigchaindb Summary

kandi X-RAY | bigchaindb Summary

bigchaindb is a Python library typically used in Blockchain, Bitcoin, Nodejs, MongoDB applications. bigchaindb has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub.

BigchainDB is the blockchain database. This repository is for BigchainDB Server.

            kandi-support Support

              bigchaindb has a highly active ecosystem.
              It has 3974 star(s) with 796 fork(s). There are 211 watchers for this library.
              It had no major release in the last 12 months.
              There are 163 open issues and 1051 have been closed. On average issues are closed in 148 days. There are 1 open pull requests and 0 closed requests.
              It has a negative sentiment in the developer community.
              The latest version of bigchaindb is v2.2.2

            kandi-Quality Quality

              bigchaindb has 0 bugs and 0 code smells.

            kandi-Security Security

              bigchaindb has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              bigchaindb code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              bigchaindb 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.

            kandi-Reuse Reuse

              bigchaindb releases are available to install and integrate.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              It has 11503 lines of code, 997 functions and 134 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed bigchaindb and discovered the below as its top functions. This is intended to give you an instant insight into bigchaindb implemented functionality, and help decide if they suit your requirements.
            • Sign a transaction
            • Signs a fulfillment
            • Sign the input
            • Recursively update a dictionary
            • Removes signatures from the transaction dict
            • Start the event stream
            • Exit if the chain is not synced
            • Log an error
            • Return information about the latest block
            • Create a websocket connection
            • Validate this transaction
            • Create argument parser
            • Create a WSGI application
            • Get the block information
            • Create a Transaction from a dict
            • Returns True if this election has been excluded
            • Recursively updates a dictionary
            • Show the election details
            • Create a CREATE transaction
            • Binary search query
            • Create a transaction object from a db
            • Processes an election block
            • Validates the election signature
            • Validate a transfer
            • Load a validation plugin
            • Handle text search
            • Configures a command line interface
            Get all kandi verified functions for this library.

            bigchaindb Key Features

            No Key Features are available at this moment for bigchaindb.

            bigchaindb Examples and Code Snippets

            copy iconCopy
            /// The Interface IBlockchainConfigurationBuilder.
            public interface IBlockchainConfigurationBuilder
                /// Adds the token.
                ///  the key 
                ///  the map 
                ///  the i tokens 
            copy iconCopy
                // continue from example above, where we know the asset id
                if(!string.IsNullOrEmpty(assetId2) && testTransfer)
                // Describe the output you are fulfilling on the previous transaction
                FulFill spendFrom = new FulFill();
            copy iconCopy
            var builder = BigchainDbConfigBuilder
            	.addToken("header1", )
            	.addToken("header2", );
            await builder.setup();
            if (!AsyncContext.Run(() => builder.setup()))
            	Console.WriteLine("Failed to setup");

            Community Discussions


            Private blockchains Vs Hashgraph, Ripple, BigChainDb
            Asked 2020-Feb-10 at 23:21

            I have been investigating different blockchains for some use cases. In the end, I came to the conclusion that setting up a private blockchain is equivalent to having a distributed database with blockchain concepts like immutability, digital signatures on top of it. Eg: Bigchaindb. (Well, If we do need smart contract feature then distributed database might not work)

            Theoretically, hashgraph consensus algorithm doesn't look secure enough for a public chain. It looks like a close alternate version of Ripple.

            In summary,

            1. Hashgraph, Ripple suits for private chain.
            2. Private chain is equivalent to setting a Distributed database

            Here I am sharing my views, to know in what way private chain is better than a distributed database?



            Answered 2018-Feb-20 at 15:29

            Defining features of hash graph consensus are virtual voting, transaction ordering and the swiftness of gossip to gossip protocol. These are helping hash graph to achieve a state of eventual asynchronous BFT in a chronotopic architecture. If we add more cryptographic rigor and integrity to these properties, it will be a fast, secure and self organized public distributed graph ledger with unique properties.



            How to use Blockchain for storing data
            Asked 2019-Sep-02 at 08:09

            So basically I'm building a webapp, which I make requests to PHP to READ/WRITE a MySQL database, looking in Google I found a Quora blog post about Blockchain databases, I've seen one (it looks pretty good) it's BigchainDB the thing is I am on a shared hosting, and obviously I can't run Python and anything just simple and plain PHP scripts and else.

            My question is: Is there any way to host a database on Blockchain from a shared hosting (free) or use Blockchain in MySQL in any form?



            Answered 2019-Sep-02 at 08:09

            Is there any way to host a database on Blockchain from a shared hosting (free) or use Blockchain in MySQL in any form?

            It appears that you're asking two questions in one. Here's how I might divide up:

            1. Can I host a database on a blockchain?
            2. How would I use MySQL with blockchain?

            Let's look at these questions in order.

            1. Can I host a database on a blockchain?

            Yes, you can. A blockchain is basically a shared ledger that contains data entries. So when you host a blockchain, you are naturally hosting a database. For instance, the Bitcoin blockchain is a database of Bitcoin transactions.

            hosting (free)

            You may not find free hosting, especially since blockchain mining can computationally expensive depending on the consensus algorithm. However, you can always use your own computer to host simulate a network of blockchain nodes, setting up several instances of a Docker container that communicates with each other.

            2. Use Blockchain with MySQL

            Before I answer this, let me assume a situation. Perhaps, you want to host a MySQL DB that contains entries from the blockchain. You may be motivated to do this to get better query performance on your local environment.

            In this case, I think you would have two kinds of databases in your system

            1. Blockchain (Shared Ledger)
            2. MySQL DB

            You would address your problem by replicating the entries on the blockchain to MySQL. You would also replicate the difference periodically to make sure your MySQL DB is in sync with the contents of the blockchain. Once you sync, you can use your MySQL DB with your app by using an ORM (Object-relation manager) on PHP.

            Interestingly, bitcoind, the bitcoin-core daemon, builds its local database (powered by BerkeleyDB) to reference transactions on a full node.



            unable to understand bgchaindb behaviour?
            Asked 2019-Jun-26 at 14:07

            I started to implement bigchainDB.I have followed the tutorial from here

            I have setup two nodes running bighchainDB server running & also mongoDB. I have added node id and address of nodes to each configuration so that they can connect.I am able to create transactions on each node.So my questions are as follow

            1. How two nodes communicate and sync data with each other.
            2. How consensus is achieved ?
            3. Why this tutorial is created for setting up cluster ?


            Answered 2019-Jun-26 at 14:07

            BigchainDB nodes communicate with each other using Tendermint P2P protocol. Consensus is Tendermint consensus. To understand those better, here are some starting points:

            Also, please ignore the old docs for versions of BigchainDB Server older than 2.0.0x.



            What is the correct way to query this document? (If the index is correct)
            Asked 2019-May-02 at 20:06

            I've a BigChainDB docker container running in my machine and I'm trying to store and retrieve geospatial data. I've created through the MongoDB interface a 2dsphere index "location" in the "metadata" collection. I've checked with the command:



            Answered 2019-May-02 at 20:06

            There are a couple of issues here.

            The first is that the index is on the field loc whereas your query is querying metadata.location.

            If you try creating a 2dsphere index on metadata.location you will see the 2nd error:



            TypeError: string indices must be integers in django
            Asked 2019-Apr-18 at 05:37

            I am trying to store json into bigchainDB. But problem is when I am hard coding the json object and broadcasting among other nodes Its getting successful. But when I am sending the same json object from the postman I am getting an error string indices must be integers

            This is my func



            Answered 2019-Apr-18 at 05:37

            The issue here is that you are using json.dumps() on request.body, which is already a string. So when you use json.loads() on this, your data doesn't get parsed into a dict.



            trying to install tendermint for cluster of nodes
            Asked 2018-Dec-20 at 08:39

            I am trying to install tendermint using the guide link:[]

            I am doing this in 4 different virtual machines installed on virtualbox

            all machines are pingable and have different ip address

            in spite of this i get error: No addresses to dial nor connected peers. Falling back to seeds module=p2p when i run the command

            tendermint node --home ./mytestnet/node0 --proxy_app=kvstore --p2p.persistent_peers="ID1@IP1:26656,ID2@IP2:26656,ID3@IP3:26656,ID4@IP4:26656" tendermint node --home ./mytestnet/node1 --proxy_app=kvstore --p2p.persistent_peers="ID1@IP1:26656,ID2@IP2:26656,ID3@IP3:26656,ID4@IP4:26656" tendermint node --home ./mytestnet/node2 --proxy_app=kvstore --p2p.persistent_peers="ID1@IP1:26656,ID2@IP2:26656,ID3@IP3:26656,ID4@IP4:26656" tendermint node --home ./mytestnet/node3 --proxy_app=kvstore --p2p.persistent_peers="ID1@IP1:26656,ID2@IP2:26656,ID3@IP3:26656,ID4@IP4:26656"

            I have encountered similar issue when i was trying to set up a bigchaindb server. is there any other settings to be done on VMs or do we need real ubuntu machines rather than VM



            Answered 2018-Dec-20 at 08:39

            I have met this issue ever. I solved this by closing the shadowsocks vpn. Although they were not the same port, but it did affect. I use virtual box for 2 vms.



            Knowing the status of a transaction in BigchainDB
            Asked 2018-Oct-14 at 10:08

            I sent a transaction to my BigchainDB instance.

            bdb = BigchainDB(url_of_instance_with_port)

            If I run bdb.transactions.retrieve(txid), I get the following:



            Answered 2018-Oct-14 at 10:08

            If the bdb.blocks.get(txid) call times out, then that might be a bug in the Python driver, unless the BigchainDB network was down when you made the call, in which case of course it timed out. Can you try again, i.e. post a new transaction and then do bdb.blocks.get(txid). If it times out again, then maybe try the same HTTP request with your web browser, i.e. put something like this in your address bar:


            and press Enter and see if it works. If not, then something is wrong with the node. If it does work, then something is wrong with the Python driver.

            If something is wrong with the Python driver, please file a new issue at

            About Mining

            BigchainDB nodes don't do anything like the "mining" that some Bitcoin or Ethereum nodes do. The nodes in a BigchainDB network achieve Byzantine fault-tolerant (BFT) consensus in a different way, using the Tendermint consensus mechanism. The theory and practice of BFT consensus go back to the late 1970s (although the BFT terminology only arose in the early 1980s), so it's not a new idea; Tendermint is just one of the newer BFT consensus algorithms/protocols.



            BigChainDb: with MongoDb?
            Asked 2018-Sep-27 at 05:06

            So why I am following this example:


            but I am using a testnet server provided by bigChainDb, so I am doing this:



            Answered 2018-Sep-27 at 05:06

            The current BigchainDB Testnet (at doesn't allow external users to connect directly to the MongoDB instances in its nodes. Nor can you start up a local node and add it to the BigchainDB Testnet. It's a "permissioned network": existing network nodes must explicitly add your node to the network.



            An existing connection was forcibly closed by the remote host [BigChainDB]
            Asked 2018-Aug-22 at 07:14

            I Got This error when working with bigchaindb

            I was following this documentation:

            And I got this error when i type this line ,

            sent_creation_tx = bdb.transactions.send_commit(fulfilled_creation_tx)

            Everything before that works fine. Dont know how to proceed further



            Answered 2018-Aug-22 at 07:14

            It depends on what the "remote host" is.

            Where are you trying to send the fulfilled_creation_tx? To a BigchainDB node on your local machine (localhost)? To the BigchainDB Testnet? Somewhere else? The answer to that question will determine your "BigchainDB Root URL". Here is a page to help you determine the BigchainDB Root URL in your case:



            bigchainDB vagrant tutorial failed provisioning
            Asked 2018-Jan-24 at 17:16

            I have tried this official bigchainDB tutorial, running with vagrant.

            Every time I hit the command vagrant up, it came out with this error below :



            Answered 2018-Jan-24 at 17:16

            Seems like ansible is not able to log into bdb-node-01. Can you verify if the directory from which you are running vagrant up has:


            Can you also tell me the contents of:


            I think if I have more information, I will be able to help you out more.

            You can also file a ticket on our github and we can work on it.


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


            No vulnerabilities reported

            Install bigchaindb

            You can download it from GitHub.
            You can use bigchaindb like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.


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