Class: Quoting

Read-only quote service backed by the v2 offline quote engine.

Constructors

Constructor

new Quoting(gateway, symbols): Quoting

Creates a quote service.

Parameters

Parameter	Type
gateway	QuoteGateway
symbols	TokenResolver

Returns

Quoting

Example

const quoting = new Quoting(gateway, symbols); // a ChainGateway, or any { dexBackendBaseUrl, httpRequestor }

Methods

quoteExactInput()

quoteExactInput(tokenIn, tokenOut, amountIn, fee?): Promise<QuoteResult>

Quotes the output for a positive exact-input amount.

Parameters

Parameter	Type
tokenIn	TokenRef
tokenOut	TokenRef
amountIn	NumericAmount
fee?	FEE_TIER

Returns

Promise<QuoteResult>

Example

const quote = await quoting.quoteExactInput('GALA', 'GUSDC', '100');
console.log(quote.amountOut);

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quoteExactOutput()

quoteExactOutput(tokenIn, tokenOut, amountOut, fee?): Promise<QuoteResult>

Quotes the input for a positive exact-output amount.

Parameters

Parameter	Type
tokenIn	TokenRef
tokenOut	TokenRef
amountOut	NumericAmount
fee?	FEE_TIER

Returns

Promise<QuoteResult>

Example

const quote = await quoting.quoteExactOutput('GALA', 'GUSDC', '10', 3000);
console.log(quote.amountIn);