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techflare prod smart contract example
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// SPDX-License-Identifier: MIT | |
pragma solidity ^0.6.7; | |
import "@chainlink/contracts/src/v0.6/ChainlinkClient.sol"; | |
contract TechFlareConsumerProd is ChainlinkClient { | |
uint256 public value; | |
address private oracle; | |
bytes32 private jobId; | |
uint256 private fee; | |
/** | |
* Network: Mainnet | |
* Oracle: | |
* Name: TechFlare Mainnet | |
* Listing URL: https://market.link/nodes/0c4cdcd0-f09b-4b63-a8ac-17ba06c3f838/metrics?network=1 | |
* Address: 0xb25FCb293571ba083bc33dA71159ed2a39A051A1 | |
* Job: | |
* Name: TechFlare API | |
* Listing URL: https://market.link/jobs/48eaf76d-fd2b-43b0-aae3-91087902c760?network=1 | |
* ID: 4144bfcb058245ecbbd746044d49762f | |
* Fee: 0.1 LINK | |
*/ | |
constructor() public { | |
setPublicChainlinkToken(); | |
oracle = 0xb25FCb293571ba083bc33dA71159ed2a39A051A1; | |
jobId = "4144bfcb058245ecbbd746044d49762f"; | |
fee = 0.1 * 10 ** 18; // 0.1 LINK (Varies by network and job) | |
} | |
/** | |
* Create a Chainlink request to retrieve API response, find the target | |
* data, then multiply by 1000000000000000000 (to remove decimal places from data). | |
************************************************************************************ | |
* STOP! * | |
* THIS FUNCTION WILL FAIL IF THIS CONTRACT DOES NOT OWN LINK * | |
* ---------------------------------------------------------- * | |
* Learn how to obtain testnet LINK and fund this contract: * | |
* ------- https://docs.chain.link/docs/acquire-link -------- * | |
* ---- https://docs.chain.link/docs/fund-your-contract ----- * | |
* * | |
************************************************************************************/ | |
function requestAPIData() public returns (bytes32 requestId) | |
{ | |
Chainlink.Request memory request = buildChainlinkRequest(jobId, address(this), this.fulfill.selector); | |
request.add("n", "btc"); // add query parameter n(name) in data json | |
request.add("p", "m"); // add query parameter p(period) in data json | |
string[] memory path = new string[](2); | |
path[0] = "sma"; | |
path[1] = "5"; | |
request.addStringArray("copyPath", path); | |
// Multiply the result by 1000000000000000000 to remove decimals | |
int timesAmount = 10**18; | |
request.addInt("times", timesAmount); | |
// Sends the request | |
return sendChainlinkRequestTo(oracle, request, fee); | |
} | |
/** | |
* Receive the response in the form of uint256 | |
*/ | |
function fulfill(bytes32 _requestId, uint256 _value) public recordChainlinkFulfillment(_requestId) | |
{ | |
value = _value; | |
} | |
// function withdrawLink() external {} - Implement a withdraw function to avoid locking your LINK in the contract | |
} |
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