@yoroi/swap/lib/module/adapters/api/steelswap/api-maker.js

The Swap package of Yoroi SDK

"use strict";

import { fetchData, isLeft } from '@yoroi/common';
import { Chain, Swap } from '@yoroi/types';
import { freeze } from 'immer';
import { transformersMaker } from './transformers';
export const steelswapApiMaker = config => {
  const {
    address,
    network,
    request = fetchData
  } = config;
  if (network !== Chain.Network.Mainnet) return new Proxy({}, {
    get() {
      return () => Promise.resolve(freeze({
        tag: 'left',
        error: {
          status: -3,
          message: 'Steelswap api only works on mainnet'
        }
      }, true));
    }
  });
  const headers = {
    'Content-Type': 'application/json',
    'Accept': 'application/json',
    'token': 'yoroi-xEwoVRkAcYSn4fgxsx5kS2ZJRBxPzAe15GyyG8FZVJEgn7e9UHfVZ07FwUBUAbmM'
  };
  const baseUrl = baseUrls[network];
  const transformers = transformersMaker({
    ...config
  });
  const api = freeze({
    async tokens() {
      const response = await request({
        method: 'get',
        url: `${baseUrl}${apiPaths.tokens}`,
        headers
      });
      if (isLeft(response)) return parseSteelswapError(response);
      return freeze({
        tag: 'right',
        value: {
          status: response.value.status,
          data: transformers.tokens.response(response.value.data)
        }
      }, true);
    },
    async orders() {
      const requestBody = {
        addresses: [address],
        txType: ['swap'],
        page: 0,
        pageSize: 100,
        isFloat: true
      };
      const response = await request({
        method: 'post',
        url: `${baseUrl}${apiPaths.orders}`,
        headers,
        data: requestBody
      });
      if (isLeft(response)) return parseSteelswapError(response);
      try {
        return freeze({
          tag: 'right',
          value: {
            status: 200,
            data: transformers.orders.response(response.value.data).sort(({
              lastUpdate: A,
              placedAt: A2
            }, {
              lastUpdate: B,
              placedAt: B2
            }) => (B ?? B2 ?? 0) - (A ?? A2 ?? 0))
          }
        }, true);
      } catch (e) {
        return freeze({
          tag: 'left',
          error: {
            status: -3,
            message: 'Failed to transform orders',
            responseData: response.value.data
          }
        }, true);
      }
    },
    async limitOptions() {
      return freeze({
        tag: 'left',
        error: {
          status: -3,
          message: 'Limit options not supported',
          responseData: null
        }
      }, true);
    },
    async estimate(body) {
      // Reject limit estimates (wantedPrice) - not supported
      if (body.wantedPrice !== undefined) {
        return freeze({
          tag: 'left',
          error: {
            status: -1,
            message: 'Steelswap Aggregator only supports market',
            responseData: null
          }
        });
      }
      const requestBody = transformers.estimate.request(body);
      const response = await request({
        method: 'post',
        url: `${baseUrl}${apiPaths.estimate}`,
        headers,
        data: requestBody
      });
      if (isLeft(response)) return parseSteelswapError(response);
      try {
        return freeze({
          tag: 'right',
          value: {
            status: response.value.status,
            data: transformers.estimate.response(response.value.data)
          }
        }, true);
      } catch (e) {
        return freeze({
          tag: 'left',
          error: {
            status: -3,
            message: 'No liquidity pools satisfy the estimate requirements',
            responseData: response.value.data
          }
        }, true);
      }
    },
    async create(body) {
      const requestBody = transformers.create.request(body);
      const response = await request({
        method: 'post',
        url: `${baseUrl}${apiPaths.create}`,
        headers,
        data: requestBody
      });
      if (isLeft(response)) return parseSteelswapError(response);

      // Make an estimate call to get the swap details (build endpoint doesn't return splits)
      const estimateRequest = {
        amountIn: body.amountIn,
        tokenIn: body.tokenIn,
        tokenOut: body.tokenOut,
        slippage: body.slippage ?? 0,
        blockedProtocols: body.blockedProtocols,
        protocol: body.protocol
      };
      const estimateResponse = await this.estimate(estimateRequest);

      // If estimate fails, return the create response with minimal data
      if (isLeft(estimateResponse)) {
        return freeze({
          tag: 'right',
          value: {
            status: response.value.status,
            data: transformers.create.response(response.value.data)
          }
        }, true);
      }

      // Merge the CBOR from create with the estimate data
      const estimateData = estimateResponse.value.data;
      const mergedData = {
        ...estimateData,
        cbor: response.value.data.tx,
        aggregator: Swap.Aggregator.Steelswap,
        totalInput: estimateData.totalInput ?? body.amountIn
      };
      return freeze({
        tag: 'right',
        value: {
          status: response.value.status,
          data: mergedData
        }
      }, true);
    },
    async cancel(body) {
      const requestBody = transformers.cancel.request(body);
      const response = await request({
        method: 'post',
        url: `${baseUrl}${apiPaths.cancel}`,
        headers,
        data: requestBody
      });
      if (isLeft(response)) return parseSteelswapError(response);
      return freeze({
        tag: 'right',
        value: {
          status: response.value.status,
          data: transformers.cancel.response(response.value.data)
        }
      }, true);
    }
  }, true);
  return api;
};
export const parseSteelswapError = ({
  tag,
  error
}) => {
  const responseData = error.responseData;
  let message = 'Steelswap API error';
  if (responseData) {
    if (typeof responseData.detail === 'string') {
      message = responseData.detail;
    } else if (Array.isArray(responseData.detail)) {
      message = responseData.detail.map(err => `${err.loc.join('.')}: ${err.msg}`).join('; ');
    }
  }
  return freeze({
    tag,
    error: {
      ...error,
      message
    }
  }, true);
};
const baseUrls = freeze({
  [Chain.Network.Mainnet]: 'https://yoroi.steelswap.io'
});
const apiPaths = freeze({
  tokens: '/tokens/list/',
  orders: '/wallet/history/',
  estimate: '/swap/estimate/',
  create: '/swap/build/',
  cancel: '/swap/cancel/'
});
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