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feat: add token mint name/symbol, decimals and delegatedAmount USD value #4

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feat: add token mint name/symbol, decimals and delegatedAmount USD value #4

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Delete hana-tweet.png
johnrees Nov 1, 2021
c47a140
feat: mint metadata, decimals + USD value
johnrees Nov 1, 2021
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3 changes: 0 additions & 3 deletions public/hana-tweet.png
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116 changes: 103 additions & 13 deletions src/components/Main.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -111,7 +111,19 @@
<strong>&check;</strong>
</span>
</td>
<td>(unknown token)</td>
<td>
<div class="token-info">
<img v-if="token.meta?.logoURI" :src="token.meta.logoURI" />
<div>
<a v-if="token.meta?.extensions?.website" :href="token.meta.extensions.website">
{{ token.meta.name }}
</a>
<span v-if="token.meta?.symbol">
{{ token.meta.symbol }}
</span>
</div>
</div>
</td>
<td><Address :pubkey="token.address"/></td>
<td><Address :pubkey="token.mint"/></td>
<td>
Expand All @@ -120,7 +132,12 @@
</span>
<span v-else>--</span>
</td>
<td>{{ token.delegatedAmount }}</td>
<td>
{{ token.meta.formattedDelegatedAmount }}
<span class="usd-total" v-if="token?.meta?.usdFormattedTotal">
{{ token.meta.usdFormattedTotal }}
</span>
</td>
</tr>
</table>
</div>
Expand All @@ -138,10 +155,21 @@ import Dots from "./Dots.vue";
import Address from "./Address.vue";

const NETWORKS = {
"mainnet-beta": "https://solana-api.projectserum.com",
testnet: "https://api.testnet.solana.com",
devnet: "https://api.devnet.solana.com",
localhost: "http://127.0.0.1:8899",
"mainnet-beta": {
url: "https://solana-api.projectserum.com",
tokenlistChainId: 101
},
testnet: {
url: "https://api.testnet.solana.com",
tokenlistChainId: 102
},
devnet: {
url: "https://api.devnet.solana.com",
tokenlistChainId: 103
},
localhost: {
url: "http://127.0.0.1:8899"
},
};

export default {
Expand Down Expand Up @@ -203,7 +231,7 @@ export default {
await vm.wallet.connect();
},
connectChain() {
this.connection = new w3.Connection(NETWORKS[this.selectedNetwork]);
this.connection = new w3.Connection(NETWORKS[this.selectedNetwork].url);
},
parseTokenAccount(address, account) {
let accountInfo = AccountLayout.decode(account.data);
Expand Down Expand Up @@ -254,15 +282,49 @@ export default {
async fetchTokens() {
let vm = this;

const [{ tokens }, tokenAccounts] = await Promise.all([
fetch("https://raw.githack.com/solana-labs/token-list/main/src/tokens/solana.tokenlist.json")
.then(x => x.json()),

vm.connection.getTokenAccountsByOwner(
vm.wallet.publicKey,
{ programId: TOKEN_PROGRAM_ID }
)
]);

// get all tokens for this wallet, parse them, and filter those without delegates
// i short circuit in the parser when this is the case
this.tokens = await vm.connection.getTokenAccountsByOwner(
vm.wallet.publicKey,
{ programId: TOKEN_PROGRAM_ID }
).then(res => res.value.map(v => vm.parseTokenAccount(v.pubkey, v.account)).filter(t => t))
.catch(() => undefined);
this.tokens = tokenAccounts.value.map(v => vm.parseTokenAccount(v.pubkey, v.account))
.filter(Boolean)
.map(token => ({
...token,
meta: tokens.find(t =>
t.chainId === NETWORKS[this.selectedNetwork].tokenlistChainId &&
t.address === token.mint.toString()
)
}));

const coingeckoIds = this.tokens.map(t => t.meta?.extensions?.coingeckoId).filter(Boolean);

if (coingeckoIds.length > 0) {
const url = `https://api.coingecko.com/api/v3/simple/price?ids=${coingeckoIds.join(",")}&vs_currencies=usd`
const res = await fetch(url);
const json = await res.json();
Object.entries(json).forEach(([id, { usd }]) => {
const token = this.tokens.find(t => t.meta?.extensions?.coingeckoId === id);
token.meta.usd = usd;
if (token.meta.decimals) {
token.meta.formattedDelegatedAmount = token.delegatedAmount / (10 ** token.meta.decimals);
token.meta.usdFormattedTotal = new Intl.NumberFormat(
'en-US',
{ style: 'currency', currency: 'USD'}
).format(token.meta.formattedDelegatedAmount * token.meta.usd)
} else {
token.meta.formattedDelegatedAmount = `${token.delegatedAmount} (unknown decimals)`
}
})
}

// TODO fetch mints here for decimal? unless they can be got from token registry
},
async revoke(token) {
let txn = new w3.Transaction();
Expand Down Expand Up @@ -320,6 +382,32 @@ img {
font: 14px/1.2 sans-serif;
}

.token-info {
display: flex;
line-height: 1.5;
}

.token-info img {
width: 45px;
height: 45px;
border-radius: 45px;
margin: 0 5px;
}

.token-info > div {
flex: 1;
}

.token-info a {
display: block;
}

span.usd-total {
display: block;
text-decoration: italic;
color: #888;
}

button, select {
cursor: pointer;
}
Expand All @@ -333,10 +421,12 @@ button:disabled, select:disabled {
display: inline-block;
width: 2.5em;
height: 1.2em;
margin: 10px;
}

td, th {
padding: 0 10px;
text-align: left;
}

code {
Expand Down