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alectogeek/main.dart

Last active June 17, 2021 09:09
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Crypto response parsing
Raw
main.dart
import 'dart:convert';
void main() {
String response = '''{
"status": {
"timestamp": "2021-06-17T05:09:56.181Z",
"error_code": 0,
"error_message": null,
"elapsed": 13,
"credit_count": 1,
"notice": null,
"total_count": 5306
},
"data": [
{
"id": 1,
"name": "Bitcoin",
"symbol": "BTC",
"slug": "bitcoin",
"num_market_pairs": 9085,
"date_added": "2013-04-28T00:00:00.000Z",
"tags": [
"mineable",
"pow",
"sha-256",
"store-of-value",
"state-channels",
"coinbase-ventures-portfolio",
"three-arrows-capital-portfolio",
"polychain-capital-portfolio",
"binance-labs-portfolio",
"arrington-xrp-capital",
"blockchain-capital-portfolio",
"boostvc-portfolio",
"cms-holdings-portfolio",
"dcg-portfolio",
"dragonfly-capital-portfolio",
"electric-capital-portfolio",
"fabric-ventures-portfolio",
"framework-ventures",
"galaxy-digital-portfolio",
"huobi-capital",
"alameda-research-portfolio",
"a16z-portfolio",
"1confirmation-portfolio",
"winklevoss-capital",
"usv-portfolio",
"placeholder-ventures-portfolio",
"pantera-capital-portfolio",
"multicoin-capital-portfolio",
"paradigm-xzy-screener"
],
"max_supply": 21000000,
"circulating_supply": 18736793,
"total_supply": 18736793,
"platform": null,
"cmc_rank": 1,
"last_updated": "2021-06-17T05:09:02.000Z",
"quote": {
"USD": {
"price": 38720.94448037543,
"volume_24h": 40076887523.37981,
"percent_change_1h": -0.82551281,
"percent_change_24h": -3.91697069,
"percent_change_7d": 4.98675986,
"percent_change_30d": -14.6533295,
"percent_change_60d": -31.70901628,
"percent_change_90d": -33.43401226,
"market_cap": 725506321493.287,
"last_updated": "2021-06-17T05:09:02.000Z"
}
}
},
{
"id": 1027,
"name": "Ethereum",
"symbol": "ETH",
"slug": "ethereum",
"num_market_pairs": 5798,
"date_added": "2015-08-07T00:00:00.000Z",
"tags": [
"mineable",
"pow",
"smart-contracts",
"ethereum",
"coinbase-ventures-portfolio",
"three-arrows-capital-portfolio",
"polychain-capital-portfolio",
"binance-labs-portfolio",
"arrington-xrp-capital",
"blockchain-capital-portfolio",
"boostvc-portfolio",
"cms-holdings-portfolio",
"dcg-portfolio",
"dragonfly-capital-portfolio",
"electric-capital-portfolio",
"fabric-ventures-portfolio",
"framework-ventures",
"hashkey-capital-portfolio",
"kinetic-capital",
"huobi-capital",
"alameda-research-portfolio",
"a16z-portfolio",
"1confirmation-portfolio",
"winklevoss-capital",
"usv-portfolio",
"placeholder-ventures-portfolio",
"pantera-capital-portfolio",
"multicoin-capital-portfolio",
"paradigm-xzy-screener"
],
"max_supply": null,
"circulating_supply": 116322213.8115,
"total_supply": 116322213.8115,
"platform": null,
"cmc_rank": 2,
"last_updated": "2021-06-17T05:09:02.000Z",
"quote": {
"USD": {
"price": 2416.708479871706,
"volume_24h": 24217679399.797337,
"percent_change_1h": -0.97606886,
"percent_change_24h": -4.52854444,
"percent_change_7d": -5.41282917,
"percent_change_30d": -31.27620488,
"percent_change_60d": 8.61882763,
"percent_change_90d": 35.31739298,
"market_cap": 281116880515.7017,
"last_updated": "2021-06-17T05:09:02.000Z"
}
}
},
{
"id": 825,
"name": "Tether",
"symbol": "USDT",
"slug": "tether",
"num_market_pairs": 12848,
"date_added": "2015-02-25T00:00:00.000Z",
"tags": [
"payments",
"stablecoin",
"stablecoin-asset-backed",
"solana-ecosystem"
],
"max_supply": null,
"circulating_supply": 62550846225.36169,
"total_supply": 64471767616.826355,
"platform": {
"id": 1027,
"name": "Ethereum",
"symbol": "ETH",
"slug": "ethereum",
"token_address": "0xdac17f958d2ee523a2206206994597c13d831ec7"
},
"cmc_rank": 3,
"last_updated": "2021-06-17T05:08:08.000Z",
"quote": {
"USD": {
"price": 1.00049478707207,
"volume_24h": 61416753647.76729,
"percent_change_1h": 0.0138973,
"percent_change_24h": 0.02636202,
"percent_change_7d": -0.01399788,
"percent_change_30d": 0.06233277,
"percent_change_60d": -2.01292554,
"percent_change_90d": -0.05819011,
"market_cap": 62581795575.42103,
"last_updated": "2021-06-17T05:08:08.000Z"
}
}
},
{
"id": 1839,
"name": "Binance Coin",
"symbol": "BNB",
"slug": "binance-coin",
"num_market_pairs": 521,
"date_added": "2017-07-25T00:00:00.000Z",
"tags": [
"marketplace",
"centralized-exchange",
"payments",
"binance-smart-chain",
"alameda-research-portfolio",
"multicoin-capital-portfolio"
],
"max_supply": 170532785,
"circulating_supply": 153432897,
"total_supply": 169432897,
"platform": null,
"cmc_rank": 4,
"last_updated": "2021-06-17T05:09:07.000Z",
"quote": {
"USD": {
"price": 355.8893955961221,
"volume_24h": 1673253674.635253,
"percent_change_1h": -1.12663573,
"percent_change_24h": -2.27656686,
"percent_change_7d": -2.93273968,
"percent_change_30d": -32.74547029,
"percent_change_60d": -25.26865956,
"percent_change_90d": 33.40356433,
"market_cap": 54605140977.89205,
"last_updated": "2021-06-17T05:09:07.000Z"
}
}
},
{
"id": 2010,
"name": "Cardano",
"symbol": "ADA",
"slug": "cardano",
"num_market_pairs": 255,
"date_added": "2017-10-01T00:00:00.000Z",
"tags": [
"mineable",
"dpos",
"pos",
"platform",
"research",
"smart-contracts",
"staking",
"binance-chain"
],
"max_supply": 45000000000,
"circulating_supply": 31946328269.464,
"total_supply": 32704886184.416,
"platform": null,
"cmc_rank": 5,
"last_updated": "2021-06-17T05:08:09.000Z",
"quote": {
"USD": {
"price": 1.52769631744928,
"volume_24h": 2139745968.8784823,
"percent_change_1h": -0.69997467,
"percent_change_24h": -1.89570042,
"percent_change_7d": -3.85110634,
"percent_change_30d": -27.89537364,
"percent_change_60d": 25.51879351,
"percent_change_90d": 23.8789033,
"market_cap": 48804288053.28598,
"last_updated": "2021-06-17T05:08:09.000Z"
}
}
},
{
"id": 74,
"name": "Dogecoin",
"symbol": "DOGE",
"slug": "dogecoin",
"num_market_pairs": 363,
"date_added": "2013-12-15T00:00:00.000Z",
"tags": [
"mineable",
"pow",
"scrypt",
"medium-of-exchange",
"memes",
"payments"
],
"max_supply": null,
"circulating_supply": 130049782160.08418,
"total_supply": 130049782160.08418,
"platform": null,
"cmc_rank": 6,
"last_updated": "2021-06-17T05:09:03.000Z",
"quote": {
"USD": {
"price": 0.31129848142273,
"volume_24h": 1310816415.976706,
"percent_change_1h": -0.66378502,
"percent_change_24h": -1.91978139,
"percent_change_7d": -7.83179818,
"percent_change_30d": -37.52457669,
"percent_change_60d": 14.55721474,
"percent_change_90d": 441.36971821,
"market_cap": 40484299695.791046,
"last_updated": "2021-06-17T05:09:03.000Z"
}
}
},
{
"id": 52,
"name": "XRP",
"symbol": "XRP",
"slug": "xrp",
"num_market_pairs": 639,
"date_added": "2013-08-04T00:00:00.000Z",
"tags": [
"medium-of-exchange",
"enterprise-solutions",
"binance-chain",
"arrington-xrp-capital",
"galaxy-digital-portfolio",
"a16z-portfolio",
"pantera-capital-portfolio"
],
"max_supply": 100000000000,
"circulating_supply": 46205772880,
"total_supply": 99990375595,
"platform": null,
"cmc_rank": 7,
"last_updated": "2021-06-17T05:09:02.000Z",
"quote": {
"USD": {
"price": 0.85461813137802,
"volume_24h": 3018068911.244064,
"percent_change_1h": -0.4167181,
"percent_change_24h": -1.68121156,
"percent_change_7d": -4.08781055,
"percent_change_30d": -44.49298824,
"percent_change_60d": -35.46315229,
"percent_change_90d": 80.26978084,
"market_cap": 39488291277.582794,
"last_updated": "2021-06-17T05:09:02.000Z"
}
}
},
{
"id": 3408,
"name": "USD Coin",
"symbol": "USDC",
"slug": "usd-coin",
"num_market_pairs": 833,
"date_added": "2018-10-08T00:00:00.000Z",
"tags": [
"medium-of-exchange",
"stablecoin",
"stablecoin-asset-backed"
],
"max_supply": null,
"circulating_supply": 23925901200.161015,
"total_supply": 23925901200.161015,
"platform": {
"id": 1027,
"name": "Ethereum",
"symbol": "ETH",
"slug": "ethereum",
"token_address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"
},
"cmc_rank": 8,
"last_updated": "2021-06-17T05:09:04.000Z",
"quote": {
"USD": {
"price": 1.00037131332884,
"volume_24h": 2193795281.472655,
"percent_change_1h": 0.01232058,
"percent_change_24h": 0.00490547,
"percent_change_7d": 0.03213081,
"percent_change_30d": 0.02901662,
"percent_change_60d": -1.82176666,
"percent_change_90d": -0.08666643,
"market_cap": 23934785206.181145,
"last_updated": "2021-06-17T05:09:04.000Z"
}
}
},
{
"id": 6636,
"name": "Polkadot",
"symbol": "DOT",
"slug": "polkadot-new",
"num_market_pairs": 193,
"date_added": "2020-08-19T00:00:00.000Z",
"tags": [
"substrate",
"polkadot",
"binance-chain",
"polkadot-ecosystem",
"three-arrows-capital-portfolio",
"polychain-capital-portfolio",
"blockchain-capital-portfolio",
"boostvc-portfolio",
"cms-holdings-portfolio",
"coinfund-portfolio",
"fabric-ventures-portfolio",
"fenbushi-capital-portfolio",
"hashkey-capital-portfolio",
"kinetic-capital",
"1confirmation-portfolio",
"placeholder-ventures-portfolio",
"pantera-capital-portfolio",
"exnetwork-capital-portfolio"
],
"max_supply": null,
"circulating_supply": 952691264.49823,
"total_supply": 1083415420.9234178,
"platform": null,
"cmc_rank": 9,
"last_updated": "2021-06-17T05:09:06.000Z",
"quote": {
"USD": {
"price": 23.58295964348006,
"volume_24h": 1696935261.1608706,
"percent_change_1h": -0.46148524,
"percent_change_24h": -1.71782121,
"percent_change_7d": -0.85267712,
"percent_change_30d": -42.62090607,
"percent_change_60d": -34.81962227,
"percent_change_90d": -33.69549353,
"market_cap": 22467279643.357746,
"last_updated": "2021-06-17T05:09:06.000Z"
}
}
},
{
"id": 7083,
"name": "Uniswap",
"symbol": "UNI",
"slug": "uniswap",
"num_market_pairs": 243,
"date_added": "2020-09-17T00:00:00.000Z",
"tags": [
"decentralized-exchange",
"defi",
"dao",
"yield-farming",
"amm",
"coinbase-ventures-portfolio",
"three-arrows-capital-portfolio",
"governance",
"blockchain-capital-portfolio",
"defiance-capital",
"alameda-research-portfolio",
"a16z-portfolio",
"pantera-capital-portfolio",
"parafi-capital",
"paradigm-xzy-screener"
],
"max_supply": 1000000000,
"circulating_supply": 575171205.7341261,
"total_supply": 1000000000,
"platform": {
"id": 1027,
"name": "Ethereum",
"symbol": "ETH",
"slug": "ethereum",
"token_address": "0x1f9840a85d5af5bf1d1762f925bdaddc4201f984"
},
"cmc_rank": 10,
"last_updated": "2021-06-17T05:08:09.000Z",
"quote": {
"USD": {
"price": 22.56451784002357,
"volume_24h": 350488109.9040696,
"percent_change_1h": -0.96799052,
"percent_change_24h": -3.33917528,
"percent_change_7d": -7.62455167,
"percent_change_30d": -36.78384081,
"percent_change_60d": -27.48069496,
"percent_change_90d": -25.00466398,
"market_cap": 12978460932.855555,
"last_updated": "2021-06-17T05:08:09.000Z"
}
}
}
]
}''';
var currData = jsonDecode(response) as Map<String, dynamic>;
(currData['data']).forEach((dynamic item) {
// Maybe you will need to cast to Map<String, dynamic>, but it works ok
print(item['name'].toString() + ' ' + item['quote']['USD']['price'].toString());
});
}
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