This is a simple blockchain implementation written in typescript. I am not an expert in blockchain technology, therefore everything you see here could be poorly implemented or not safe for production environments.
My motivation 💪 for writing this code is to learn about this technology and its different ways of implementing it in other products.
By default this code uses a local repository based on json objects. If you want to store data in the blockchain run this:
yarn start -m "Your message to store"
# Using NPM
npm start -m "Your message to store"The blockchain will be stored in ./database/blockchain.json
If you want to test on a CouchDB database, yo have to provide the database settings in the .env file:
This variable needs to be couchdb in order to use this database repository
This is mandatory. Host address or IP of the database server
This is mandatory. Only allowed http or https
This is mandatory. Database listening port
This is optional. Only required if authentication is enabled
This is optional. Only required if authentication is enabled
This is mandatory. The name of the database. If not exists in the server, it will be created.
You can run a CouchDB server using docker-compose
docker-compose up -dFeel free to modify docker-compose.yaml to match your preferences.
View LICENSE file for the software contained in this image.
As with all npm packages, these likely also contain other software which may be under other licenses (such as crypto-js, jest, etc from the base distribution, along with any direct or indirect dependencies of the primary software being contained).
It is the user's responsibility to ensure that any use of this package complies with any relevant licenses for all software contained within.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.