withdrawls

src/blockchain/token.js

@@ -0,0 +1,44 @@
+import {socket} from "@/socket.js";
+import {useStore} from "@/store/store.js";
+import {erc20Abi} from "@/blockchain/abi.js";
+import {ethers} from "ethers";
+
+export async function getToken(addr) {
+    const s = useStore()
+    if (!(addr in s.tokens))
+        await addExtraToken(addr)
+    return s.tokens[addr]
+}
+
+export async function addExtraToken(addr) {
+    const prom = new Promise((resolve) => {
+        const s = useStore()
+        const chainId = s.chainId
+        console.log('querying token', addr)
+        socket.emit('lookupToken', chainId, addr, (info) => {
+            console.log('server token info', info)
+            if (info !== null) {
+                s.addToken(chainId, info)
+                resolve(info)
+            }
+            else {
+                if( s.provider===null ) {
+                    console.log('warning: token lookup cancelled due to null provider', addr)
+                    resolve(null)
+                    return
+                }
+                const token = new ethers.Contract(addr, erc20Abi, s.provider)
+                Promise.all( [token.symbol(), token.decimals()] ).then((symbol,decimals)=>{
+                    info = {
+                        address: addr,
+                        symbol: symbol,
+                        decimals: decimals,
+                    }
+                    s.addToken(chainId, info)
+                    resolve(info)
+                })
+            }
+        })
+    })
+    return await prom
+}