# link_token

> The LINK token is an [EIP20](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md) token with additional [ERC677](https://github.com/ethereum/EIPs/issues/677) functionality.

Latest version **1.0.6** (published 2019-04-19) · MIT license · 0 weekly downloads

## Install

```sh
npm install link_token
pnpm add link_token
yarn add link_token
bun add link_token
```

## Health

**Score 15/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 1.0.6 |
| Published | 2019-04-19 |
| First published | 2018-09-28 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 0 |
| Unpacked size | 17.8 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Maintainers | se3000 |

## Links

- npm: https://www.npmjs.com/package/link_token
- Repository: https://github.com/smartcontractkit/LinkToken
- Issues: https://github.com/smartcontractkit/LinkToken/issues
- npm.io page: https://npm.io/package/link_token

## Recent versions

- 1.0.6 (latest) — 2019-04-19
- 1.0.5 — 2019-04-18
- 1.0.4 — 2019-04-18
- 1.0.3 — 2019-03-14
- 1.0.2 — 2019-03-14
- 1.0.1 — 2018-09-28

## README

# LINK Token Contracts [![Build Status](https://travis-ci.org/smartcontractkit/LinkToken.svg?branch=master)](https://travis-ci.org/smartcontractkit/LinkToken)

The LINK token is an [EIP20](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md) token with additional [ERC677](https://github.com/ethereum/EIPs/issues/677) functionality.

The total supply of the token is 1,000,000,000, and each token is divisible up to 18 decimal places.

To prevent accidental burns, the token does not allow transfers to the contract itself and to 0x0.

Security audit available [here](https://gist.github.com/Arachnid/4aa88041bd6e34835b8c0fd051245e79).

## Details
- Address: [0x514910771AF9Ca656af840dff83E8264EcF986CA](https://etherscan.io/address/0x514910771af9ca656af840dff83e8264ecf986ca)
- Decimals: 18
- Name: ChainLink Token
- Symbol: LINK

### Solidity ABI:
```
contract LinkToken {
    function allowance(address owner, address spender) returns (bool success);
    function approve(address spender, uint256 value) returns (bool success);
    function balanceOf(address owner) returns (uint256 balance);
    function decimals() returns (uint8 decimalPlaces);
    function decreaseApproval(address spender, uint256 addedValue) reutrns (bool success);
    function increaseApproval(address spender, uint256 subtractedValue);
    function name() returns (string tokenName);
    function symbol() returns (string tokenSymbol);
    function totalSupply() returns (uint256 totalTokensIssued);
    function transfer(address to, uint256 value) returns (bool success);
    function transferAndCall(address to, uint256 value, bytes data) returns (bool success);
    function transferFrom(address from, address to, uint256 value) returns (bool success);
}
```

### JSON ABI:
```
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"transferAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"data","type":"bytes"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]
```

## Installation
```
npm install
```

## Testing
Run a test network:
```
./server.sh
```

Then, run the test suite:
```
truffle test
```

---
_Source: https://npm.io/package/link_token · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._