@paraswap/sdk/src/helpers/fetchers/axios.ts

ParaSwap SDK

import type { ExtraFetchParams, FetcherFunction } from '../../types';
import type { AxiosStatic } from 'axios';
import { FetcherError } from '../misc';

export type AxiosRequirement = Pick<AxiosStatic, 'request' | 'isAxiosError'>;

export const constructFetcher =
  (axios: AxiosRequirement, extra?: ExtraFetchParams): FetcherFunction =>
  async (params) => {
    try {
      // adding apiKey to headers if it's provided
      const headers = extra?.apiKey
        ? { 'X-API-KEY': extra.apiKey, ...params.headers }
        : params.headers;
      const { data } = await axios.request({ ...params, headers });

      return data;
    } catch (error: any) {
      if (axios.isAxiosError(error)) {
        // attach a more meaningful message and other props
        throw new FetcherError(error);
      }

      throw error;
    }
  };