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social-wallet-api

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Social Wallet REST API web interface

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# Social Wallet API

The Social Wallet API  is made to facilitate the integration of blockchain
functions into existing front-end applications, providing an easy
backend of documented REST API endpoints that are validated and, in
case of error, report meaningful messages. It also gives the opportunity to add
metadata to transactions which can be very useful for grouping, labeling and filtering
as well as adding some context.

The Social Wallet API allows to make calls to mongo db and to running
blockchain nodes that are compatibile with Bitcoin Core and support
the generic Bitcoin RPC. Overtime more implemenations will be provided for
different distributed ledger implementations and storages.

The Social wallet API can also operate with only the DB without any blockchain connection,
which is great for experimentation, testing or situations where the complexity of 
a distributed ledger is not required.

[![Build Status](https://travis-ci.org/Commonfare-net/social-wallet-api.svg?branch=master)](https://travis-ci.org/Commonfare-net/social-wallet-api)
[![Clojars Project](https://img.shields.io/clojars/v/social-wallet-api.svg)](https://clojars.org/social-wallet-api)
[![Freecoin project stats](https://www.openhub.net/p/freecoin/widgets/project_thin_badge.gif)](https://www.openhub.net/p/freecoin)
[![License: AGPL v3](https://img.shields.io/badge/License-AGPL%20v3-blue.svg)](https://www.gnu.org/licenses/agpl-3.0)

This REST API interface is so far meant for low-level access of
wallets built using the [Freecoin toolkit](https://freecoin.dyne.org).

[![Freecoin.dyne.org](https://freecoin.dyne.org/images/freecoin_logo.png)](https://freecoin.dyne.org)

## Getting Started

The Social Wallet API is written in Clojure and is fully
cross-platform: one can run it locally on a GNU/Linux machine, as well
on Apple/OSX and MS/Windows.

### Prerequisites

Please install
1. A JDK. The software is tested on [openJDK](http://openjdk.java.net/) versions 7 and 8 as well as with [oracleJDK 8](http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html) and 10. Make sure that the env var JAVA_HOME is set to the JDK install dir like [mentioned here](https://docs.oracle.com/cd/E19182-01/820-7851/inst_cli_jdk_javahome_t/index.html).
2. [MongoDB community edition](https://docs.mongodb.com/manual/administration/install-community/). The software has been tested on Mongo v3.6.4. Earlier versions might not work due to loss of precision (Decimal128 was not introduced).
3. [leiningen](https://leiningen.org/) which is used for dependency management like:
```
mkdir ~/bin
wget https://raw.githubusercontent.com/technomancy/leiningen/stable/bin/lein -O ~/bin/lein
chmod +x ~/bin/lein
```

For instance on Devuan systems one can install all necessary
dependencies using apt and the following packages: `apt-get
openjdk-7-jdk libversioneer-clojure haveged`.

### Running the Social Wallet API

First of all check the configuration in
`resources/social-wallet-api.yaml` and adjust its contents to your
setup. Here a sample configuration:

```yaml
# verbosity level of messages
log-level: debug

# open freecoin specific section
freecoin:
# indentation matters: mind the initial spaces of following sections
  # If an apikey is added to the config, for that particular installation an apikey will be created, stored and required with every request. Device-id should be replaced with the device/client-app name/id.
  apikey: device-id ## optional
# configuration for the database holding local transactions
  mongo:
    host: localhost
    port: 27017
    db:   freecoin
    currency: Commoncoin # You can set this to the name of the local currency to be used on the DB

## All the configurations below are optional and multiple can be added

# configuration of the 'faircoin' blockchain
  faircoin:
# visualised name of the currency
    currency: fair
# number of confirmations to consider a transaction as valid
    number-confirmations: 6
# frequency of confirmations checks in milliseconds
    frequency-confirmations-millis: 20000
# path to the rpc configuration holding username and password
    rpc-config-path: /home/user/.faircoin2/faircoin.conf
# deposit to an address watch expiration time in milliseconds
    deposit-expiration-millis: 3600000
# frequency of deposit checks in milliseconds
    frequency-deposit-millis: 60000

# configuration of the 'bitcoin' blockchain
  bitcoin:
# visualised name of the currency
    currency: btc
# number of confirmations to consider a transaction as valid
    number-confirmations: 6
# frequency of confirmations checks in milliseconds
    frequency-confirmations-millis: 20000
# path to the rpc configuration holding username and password
    rpc-config-path: /home/user/.bitcoin/bitcoin.conf
```

Once correctly configured, from inside the social-wallet-api source
directory one can use various commands to run it live (refreshing live
changes to the code) using:

- `lein ring server` (which will start and spawn a browser on it)
- `lein ring server-headless` (will start without browser)

One can also use `lein uberjar` to build a standalone jar application,
or `lein uberwar` to build a standalone war application ready to be
served from enterprise infrastructure using JBoss or Tomcat.

## Running the tests

To run all tests one need to run
` lein midje`
on the project dir

#### Run only the fast tests

Some of the tests are marked as slow. If you want to avoid running them you can either

```
lein midje :filter -slow
```

or use the alias

```
lein test-basic
```

## Deployment

Even though there are many ways to deploy this software, a dockerised version is provided in this project. 
For more details look into the [docker](docker) folder. Please keep in mind that we do not recommend docker for production
due to some security concerns.

## Summary

This table summarizes which are the available methods for the different backends.

| method                   | database | blockchain |
|--------------------------|:--------:|:----------:|
| `tags.list`              | ✅        | 🚫         |
| `transactions(...).new`  | ✅        | 🚫         |
| `transactions(...).list` | ✅        | ✅         |
| `transactions(...).get`  | ✅        | ✅         |
| `balance`                | ✅        | ✅         |
| `label`                  | ✅        | ✅         |
| `address`                | 🚫        | ✅         |
| `withdraws.new`          | 🚫        | ✅         |
| `deposits.new`           | 🚫        | ✅         |
| `deposits.check`         | 🚫        | ✅         |

## Articles & Guides

- [Setup and running swapi with bitcoin v0.18](https://www.dyne.org/setup-and-running-swapi-with-bitcoin-v0-18/)

## Todos

- Multicurrency on the DB

## Acknowledgements

The Social Wallet API is Free and Open Source research and development
activity funded by the European Commission in the context of
the
[Collective Awareness Platforms for Sustainability and Social Innovation (CAPSSI)](https://ec.europa.eu/digital-single-market/en/collective-awareness) program. Social
Wallet API uses the
underlying [Freecoin-lib](https://github.com/dyne/freecoin-lib)
blockchain implementation library and adopted as a component of the
social wallet toolkit being developed for
the [Commonfare project](http://pieproject.eu) (grant nr. 687922) .

## License

This project is licensed under the AGPL 3 License - see the [LICENSE](LICENSE) file for details

#### Additional permission under GNU AGPL version 3 section 7.

If you modify Freecoin-lib, or any covered work, by linking or combining it with any library (or a modified version of that library), containing parts covered by the terms of EPL v 1.0, the licensors of this Program grant you additional permission to convey the resulting work. Your modified version must prominently offer all users interacting with it remotely through a computer network (if your version supports such interaction) an opportunity to receive the Corresponding Source of your version by providing access to the Corresponding Source from a network server at no charge, through some standard or customary means of facilitating copying of software. Corresponding Source for a non-source form of such a combination shall include the source code for the parts of the libraries (dependencies) covered by the terms of EPL v 1.0 used as well as that of the covered work.

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