@multiversx/sdk-dapp-swap
Version:
A library to hold the main logic for swapping between tokens on the MultiversX blockchain
240 lines (235 loc) • 53.9 kB
JavaScript
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t};a();a();a();var K=`
balance
decimals
name
identifier
ticker
owner
assets {
website
description
status
pngUrl
svgUrl
}
price
type
previous24hPrice
previous7dPrice
`;a();a();a();var qe=`
assets {
website
description
status
pngUrl
svgUrl
}
decimals
name
collection
ticker
`;var mt=`
address
lockedToken {
${qe}
}
lpProxyToken {
${qe}
}
farmProxyToken {
${qe}
}
intermediatedPairs
intermediatedFarms
`;var ht=`
address
firstToken {
${K}
}
secondToken {
${K}
}
type
feesAPR
totalFeePercent
specialFeePercent
lockedTokensInfo {
lockingSC {
${mt}
}
unlockEpoch
}
`;a();var Fe=`
value
receiver
gasPrice
gasLimit
data
chainID
version
`;a();var Ce=`
defaultSlippage
slippageValues
minSlippage
maxSlippage
minSwapAmount
`;a();var _n=`
__typename
valueUSD
`,xr=`
${K}
${_n}
`;a();a();var wr=require("@apollo/client");var Ir="TRANSACTIONS_PLACEHOLDER",$n=`
transactions {
${Fe}
}
`,dt=`
query swapPackageSwapRoute (
$amountIn: String
$amountOut: String
$tokenInID: String!
$tokenOutID: String!
$tolerance: Float!
) {
swap(
amountIn: $amountIn
amountOut: $amountOut
tokenInID: $tokenInID
tokenOutID: $tokenOutID
tolerance: $tolerance
) {
amountIn
tokenInID
tokenInPriceUSD
tokenInExchangeRateDenom
amountOut
tokenOutID
tokenOutPriceUSD
tokenOutExchangeRateDenom
fees
swapType
tokenRoute
pricesImpact
maxPriceDeviationPercent
tokensPriceDeviationPercent
intermediaryAmounts
pairs {
${ht}
}
${Ir}
}
}
`,yt=wr.gql`
${dt.replace(Ir,$n)}
`,Tt=wr.gql`
${dt.replace(Ir,"")}
`;a();a();var Re=require("@apollo/client");var gt=Re.gql`
query swapPackageTokens ($identifiers: [String!], $enabledSwaps: Boolean) {
tokens(identifiers: $identifiers, enabledSwaps: $enabledSwaps) {
${K}
}
wrappingInfo {
wrappedToken {
${K}
}
}
factory {
${Ce}
}
}
`,xt=Re.gql`
query swapPackageFilteredTokens ($enabledSwaps: Boolean, $pagination: ConnectionArgs, $searchInput: String, $identifiers: [String!]) {
filteredTokens (pagination: $pagination, filters: {searchToken: $searchInput, enabledSwaps: $enabledSwaps, identifiers: $identifiers}) {
edges {
node {
${K}
}
cursor
}
pageInfo {
hasNextPage
}
pageData {
count
}
}
wrappingInfo {
wrappedToken {
${K}
}
}
factory {
${Ce}
}
}
`,wt=Re.gql`
query swapPackageTokensWithBalance ($identifiers: [String!], $offset: Int, $limit: Int, $enabledSwaps: Boolean) {
tokens(identifiers: $identifiers, enabledSwaps: $enabledSwaps) {
${K}
}
userTokens (offset: $offset, limit: $limit) {
${xr}
}
wrappingInfo {
wrappedToken {
${K}
}
}
factory {
${Ce}
}
}
`,It=Re.gql`
query swapPackageFilteredTokensWithBalance ($identifiers: [String!], $pagination: ConnectionArgs, $searchInput: String, $offset: Int, $limit: Int, $enabledSwaps: Boolean) {
filteredTokens (pagination: $pagination, filters: {searchToken: $searchInput, enabledSwaps: $enabledSwaps, identifiers: $identifiers}) {
edges {
node {
${K}
}
cursor
}
pageInfo {
hasNextPage
}
pageData {
count
}
}
userTokens (offset: $offset, limit: $limit) {
${xr}
}
wrappingInfo {
wrappedToken {
${K}
}
}
factory {
${Ce}
}
}
`;a();a();var Et=require("@apollo/client");var He=Et.gql`
query swapPackageWrapEgld ($wrappingAmount: String!) {
wrapEgld(amount: $wrappingAmount) {
${Fe}
}
}
`;a();var At=require("@apollo/client");var je=At.gql`
query swapPackageUnwrapEgld ($wrappingAmount: String!) {
unwrapEgld(amount: $wrappingAmount) {
${Fe}
}
}
`;a();a();var St=require("@apollo/client"),kt=St.gql`
query swapPackageMaintenance {
factory {
maintenance
}
}
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We suggest using an alternative route to perform the token swap.","Spread too big!":"Smart Swap not possible because you would lose more than 5%."},br=t=>{if(!t)return;let e="No trade route found.",r=Object.keys(Ct).find(n=>t.includes(n));return r?Ct[r]:e};a();var Dr=te(require("bignumber.js"));var Rt=t=>{let e=new Dr.default(t!=null?t:"0"),r=new Dr.default(Ft),n=e.minus(r);return n.isGreaterThan(0)?n.toString(10):"0"};a();var Ie=({amount:t="0",decimals:e=0,digits:r=4,addCommas:n=!1,showLastNonZeroDecimal:o=!1})=>{if(t==null||!(0,kr.stringIsInteger)(t))return"0";let i=p=>(0,we.formatAmount)({decimals:e,addCommas:n,input:t,digits:p,showLastNonZeroDecimal:o}),s=i(r);return s=parseFloat(s)>0?s:i(4+4),s=parseFloat(s)>0?s:i(4+9),parseFloat(s)>0?s:i(4+14)};a();var Ze=te(require("bignumber.js"));var Lt=({tolerance:t,secondAmount:e,isFixedOutput:r,swapActionType:n,secondTokenDecimals:o})=>{if(!e)return;if(r||n!=="swap")return e;let i=new Ze.default((0,pe.parseAmount)(e,o)),s=new Ze.default(1).dividedBy(new Ze.default(t).dividedBy(100).plus(1)).times(i).toFixed(0);return(0,we.formatAmount)({input:s,decimals:o})};a();var Nt=te(require("bignumber.js"));var Je=({tokens:t,wrappedEgld:e})=>t.sort((r,n)=>r.identifier===ne?-1:n.identifier===ne?1:r.identifier===(e==null?void 0:e.identifier)?-1:n.identifier===(e==null?void 0:e.identifier)?1:new Nt.default(n.valueUSD).minus(r.valueUSD).toNumber());a();var Pr=te(require("bignumber.js"));var _t=t=>t==null?void 0:t.reduce((e,r)=>{var o;let n=new Pr.default((o=Bt(r))!=null?o:"0");return e.plus(n)},new Pr.default("0")).toString(10);a();var Ur=({newToken:t,firstToken:e,secondToken:r,activeRoute:n,needsParsing:o})=>{if(!n||!t)return{amountIn:void 0,amountOut:void 0};let i=(n==null?void 0:n.swapType)===0,s=i?n==null?void 0:n.amountIn:n==null?void 0:n.amountOut,c=(i?n==null?void 0:n.tokenInID:n==null?void 0:n.tokenOutID)===(e==null?void 0:e.identifier)?e==null?void 0:e.decimals:r==null?void 0:r.decimals,g=Ie({amount:s,showLastNonZeroDecimal:!0,decimals:c}),h=o?(0,pe.parseAmount)(g,t==null?void 0:t.decimals):s;return{amountIn:i?h:void 0,amountOut:i?void 0:h}};a();var $t=require("@apollo/client");var er=({skip:t=!1,isPollingEnabled:e=!1})=>{let r=$t.gql`
query swapPackageTokenPrices {
tokens(enabledSwaps: true) {
price
identifier
}
}
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Z=require("react"),Br=({activeRoute:t})=>{let[e,r]=(0,Z.useState)("normal"),[n,o]=(0,Z.useState)(),[i,s]=(0,Z.useState)(),[p,c]=(0,Z.useState)(),[g,h]=(0,Z.useState)(),[y,P]=(0,Z.useState)(),[b,w]=(0,Z.useState)(),[D,_]=(0,Z.useState)(),[d,T]=(0,Z.useState)(),I=()=>{if(!t)return;let{tokenInID:E,tokenOutID:A,tokenInExchangeRateDenom:S,tokenInPriceUSD:B,tokenOutExchangeRateDenom:v,tokenOutPriceUSD:k}=t;s(A),h(E),o(v),c(k),w(E),T(A),P(S),_(B)},x=()=>{r(E=>E==="normal"?"reverse":"normal")};return(0,Z.useEffect)(I,[t,e]),{tokenInId:e==="normal"?i:b,tokenInIdPriceUsd:e==="normal"?p:D,tokenOutId:e==="normal"?g:d,exchangeRate:e==="normal"?n:y,switchTokensDirection:x}};var Kn=({tolerance:t,activeRoute:e,firstToken:r,firstAmount:n,secondToken:o,secondAmount:i,swapActionType:s})=>{var O,z,q,Q;let[p,c]=(0,ce.useState)(),[g,h]=(0,ce.useState)(),[y,P]=(0,ce.useState)(),[b,w]=(0,ce.useState)(),[D,_]=(0,ce.useState)(),{tokenInId:d,tokenOutId:T,exchangeRate:I,switchTokensDirection:x}=Br({activeRoute:e}),E=(0,ce.useMemo)(()=>_t(e==null?void 0:e.transactions),[e==null?void 0:e.transactions]),A=Xe(I||""),S=Xe((z=(O=r==null?void 0:r.token)==null?void 0:O.price)!=null?z:""),B=Xe((Q=(q=o==null?void 0:o.token)==null?void 0:q.price)!=null?Q:""),v=d===(r==null?void 0:r.value)?B:S,k=new Mt.default(A||"0").multipliedBy(v||"0").toString(10);return(0,ce.useEffect)(()=>{if(!e)return;let{swapType:F,pairs:C}=e,X=Lt({tolerance:t,secondAmount:i,secondTokenDecimals:o==null?void 0:o.token.decimals,isFixedOutput:F===1,swapActionType:s}),H=[];C.forEach(de=>{let{totalFee:oe,burn:ye,lpHolders:nr}=Pt(de);!(C.length===1)&&oe&&H.push(`${oe}%`),_({totalFee:oe,burn:ye,lpHolders:nr})});let ee=n?e.pricesImpact:void 0,re=n?e.fees:void 0;c(X),h(re),w(ee),P(H)},[t,e,r,n,o,i,s]),{exchangeRate:I,feeDetails:D,feeAmounts:g,pricesImpact:b,feePercentages:y,tokenInId:d,tokenOutId:T,switchTokensDirection:x,totalTransactionsFee:E,minimumAmountReceived:p,exchangeRateUsdValue:k}};a();var J=require("react");a();var Ne=require("react"),Gt=require("@apollo/client");var Ee=({query:t,queryOptions:e,refetchTrigger:r,isPollingEnabled:n=!1,isRefetchEnabled:o=!1})=>{let i=vr(),{client:s}=W(),I=(0,Gt.useQuery)(t,R({client:s,notifyOnNetworkStatusChange:!0,fetchPolicy:"no-cache",nextFetchPolicy:"no-cache"},e)),{error:p,loading:c,previousData:g,data:h=g,refetch:y,stopPolling:P,startPolling:b}=I,w=Qr(I,["error","loading","previousData","data","refetch","stopPolling","startPolling"]),D=(0,Ne.useCallback)(()=>{i&&n&&!p?b(6e3):P()},[i,n,p,e]);(0,Ne.useEffect)(()=>(D(),()=>{P()}),[D]),(0,Ne.useEffect)(()=>{!o||r===0||(y(),D())},[r,o]);let _=h==null&&c,d=Boolean(p);return R({data:d?void 0:h,error:p,isError:d,isLoading:_,isRefetching:c,refetch:y},w)};var Yn=({wrappedEgld:t,isPollingEnabled:e=!1})=>{var B,v;let{client:r,isAuthenticated:n}=W();if(!r)throw new Error("Swap GraphQL client not initialized");let[o,i]=(0,J.useState)(),[s,p]=(0,J.useState)(),[c,g]=(0,J.useState)(),h=(0,J.useRef)(),y=(0,J.useMemo)(()=>Ot({firstTokenId:o==null?void 0:o.tokenInID,secondTokenId:o==null?void 0:o.tokenOutID,wrappedEgld:t}),[o,t]),P=(0,J.useMemo)(()=>y==="wrap"?He:y==="unwrap"?je:n?yt:Tt,[n,y]),b=(0,J.useMemo)(()=>{if(!o)return!0;let{amountIn:k,amountOut:U}=o;return!Boolean(k!=null?k:U)},[o]),{data:w,error:D,refetch:_,isRefetching:d,isLoading:T,isError:I}=Ee({query:P,queryOptions:{skip:b,client:r,variables:o},isPollingEnabled:e}),x=()=>{var k,U,O;if(!o){p(void 0),g(br(D==null?void 0:D.message));return}switch(y){case"wrap":case"unwrap":let z=w==null?void 0:w.wrapEgld,q=w==null?void 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0:v.amountOut));return{refetch:_,getSwapRoute:E,swapRoute:s,swapActionType:y,swapRouteError:c,isAmountInLoading:S,isAmountOutLoading:A,isSwapRouteError:I,isSwapRouteLoading:T,transactions:s==null?void 0:s.transactions,previousFetchVariables:h}};a();var Zn=()=>{let{client:t}=W();if(!t)throw new Error("Swap GraphQL client not initialized");let{execute:e,isLoading:r}=he({query:je,queryOptions:{client:t}});return{unwrapEgld:e,isUnwrapEgldLoading:r}};a();var Be=require("react"),Qt=()=>typeof document===void 0?!0:document.visibilityState==="visible",vr=()=>{let[t,e]=(0,Be.useState)(Qt()),r=(0,Be.useCallback)(()=>{e(Qt())},[e]);return(0,Be.useEffect)(()=>{if(typeof document!==void 0)return document.addEventListener("visibilitychange",r),()=>document.removeEventListener("visibilitychange",r)},[r]),t};a();var V=require("react");a();var Wt=require("react"),Cr=({tokens:t,hasMore:e,isLoading:r,observerId:n,loadedCursors:o,currentCursor:i,setPagination:s})=>{(0,Wt.useEffect)(()=>{if(!n)return;let p=document.getElementById(n);if(!p)return;let c=new IntersectionObserver(g=>{g[0].isIntersecting&&e&&!r&&i&&!o.has(i)&&s({first:20,after:i})},{threshold:1});return c.observe(p),()=>{c.disconnect()}},[t,n])};var Jn=0,eo=500,ro=!0,to=!1,no=[],oo={first:20,after:""},io="",so=t=>{var q,Q;let e=(0,V.useRef)(!0),{client:r,isAuthenticated:n}=W();if(!r)throw new Error("Swap GraphQL client not initialized");let o=(q=t==null?void 0:t.pricePolling)!=null?q:to,i=t==null?void 0:t.searchInput,[s,p]=(0,V.useState)({first:20,after:""}),[c,g]=(0,V.useState)(!0),[h,y]=(0,V.useState)(),[P,b]=(0,V.useState)(new Set),[w,D]=(0,V.useState)([]),[_,d]=(0,V.useState)(),[T,I]=(0,V.useState)(),[x,E]=(0,V.useState)(),A=!1,{tokenPrices:S}=er({isPollingEnabled:o}),B=F=>{var or;if(!F)return;let{wrappingInfo:C,userTokens:X,factory:H,filteredTokens:ee}=F,{edges:re,pageInfo:de,pageData:oe}=ee;E(oe==null?void 0:oe.count),H&&I(H);let ye=C&&C.length?C[0].wrappedToken:void 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_=w?s:p,d=w?e==null?void 0:e.token.decimals:n==null?void 0:n.token.decimals,T=w?h:y,x=(0,we.formatAmount)({input:_,decimals:d,showLastNonZeroDecimal:!0}).replace(/,/g,""),E=new Rr.default(x).times(new Rr.default(T)).toString(10),A=bt(E,2);return{firstAmountUsdValue:w?A:void 0,secondAmountUsdValue:D?A:void 0}},[t,o,r,e,n]);a();var tr=require("react"),Nr=t=>{let e=(0,tr.useRef)(void 0);return(0,tr.useEffect)(()=>{e.current=t},[t]),e.current};var ao=({getSwapRoute:t,tolerancePercentage:e})=>{let[r,n]=(0,ve.useState)({firstAmount:"",secondAmount:""}),[o,i]=(0,ve.useState)(),s=(0,ve.useRef)(),p=(0,ve.useRef)(),c=Nr(r.secondToken),g=Lr({swapRoute:o,firstToken:r.firstToken,firstAmount:r.firstAmount,secondToken:r.secondToken,secondAmount:r.secondAmount}),h=d=>{if(!d){i(void 0);return}let{swapType:T,tokenInID:I,tokenOutID:x,amountIn:E,amountOut:A,pairs:S}=d;i(d);let B=T===0,v=B?A:E,U=Ye({identifier:B?x:I,pairs:S}),O=Ie({amount:v,decimals:U}),z=B&&Boolean(r.firstAmount),q=!B&&Boolean(r.secondAmount);if(s.current){let Q=Ye({identifier:d.tokenInID,pairs:S}),F=Ye({identifier:d.tokenOutID,pairs:S}),C=Ie({amount:d.amountIn,decimals:Q}),X=Ie({amount:d.amountOut,decimals:F}),H=C,ee=X;n(re=>G(R({},re),{firstAmount:H,secondAmount:ee})),s.current=!1}else n(Q=>G(R({},Q),{firstAmount:q?O:Q.firstAmount,secondAmount:z?O:Q.secondAmount}))},y=d=>