fraud-check-ts/dist/index.mjs.map

This module integrates the IP-API service to analyze IP addresses and determine their potential for fraudulent activity based on a predefined list of high-risk countries. It is designed to enhance security measures for online platforms by identifying and

{"version":3,"sources":["../src/index.ts"],"sourcesContent":["// import isValidIp from \"./utils/isValidIp\";\n\ntype IpApiResponse =\n  | {\n      status: \"fail\";\n      countryCode: undefined;\n      org: undefined;\n      proxy: undefined;\n      hosting: undefined;\n    }\n  | {\n      status: \"success\";\n      countryCode: string;\n      org: \"iCloud Private Relay\" | string;\n      proxy: boolean;\n      hosting: boolean;\n    };\n\ntype ConstructorType = {\n  key?: string;\n};\n\ntype VerifyOptions = (\n  | { validCountries: string[] }\n  | { bannedCountries: string[] }\n) & {\n  allowProxy?: boolean;\n  allowHosting?: boolean;\n  allowFailStatus?: boolean;\n  byPassIcloudRelay?: boolean;\n};\n\ntype VerifyResponse =\n  | {\n      success: true;\n    }\n  | {\n      success: false;\n      reason:\n        | \"invalid_ip\"\n        | \"status_fail\"\n        | \"is_proxy\"\n        | \"is_hosting\"\n        | \"banned_country\"\n        | \"not_valid_country\"\n        | string;\n    };\n\nexport default class FraudChecker {\n  readonly key: string | undefined;\n\n  constructor(payload: ConstructorType) {\n    if (typeof payload.key === \"string\") {\n      this.key = payload.key;\n    }\n  }\n\n  private async runApi(ip: string) {\n    const isPro = Boolean(this.key);\n\n    const apiLink = isPro\n      ? \"https://pro.ip-api.com/json/\"\n      : \"http://ip-api.com/json/\";\n\n    const params = new URLSearchParams({\n      key: isPro && this.key ? this.key : \"\",\n      fields: \"status,countryCode,proxy,hosting,org\",\n    }).toString();\n\n    const url = `${apiLink}${ip}?${params}`;\n\n    try {\n      const response = await fetch(url);\n      if (!response.ok) {\n        throw new Error(`HTTP error! status: ${response.status}`);\n      }\n      const data: IpApiResponse = await response.json();\n\n      return data;\n    } catch (error) {\n      console.error(\"Error fetching data: \", error);\n      throw error; // Rethrow the error for further handling if necessary\n    }\n  }\n\n  public async verify(\n    ip: string,\n    opts: VerifyOptions\n  ): Promise<VerifyResponse> {\n    try {\n      // if (!isValidIp(ip)) {\n      //   throw \"invalid_ip\";\n      // }\n\n      const result = await this.runApi(ip);\n\n      if (result.status === \"fail\") {\n        if (opts.allowFailStatus) {\n          return {\n            success: true,\n          };\n        }\n\n        throw \"status_fail\";\n      }\n\n      if (\n        result.proxy &&\n        !opts.allowProxy &&\n        !(opts.byPassIcloudRelay && result.org === \"iCloud Private Relay\")\n      ) {\n        throw \"is_proxy\";\n      }\n\n      if (result.hosting && !opts.allowHosting) {\n        throw \"is_hosting\";\n      }\n\n      if (\n        \"bannedCountries\" in opts &&\n        opts.bannedCountries.includes(result.countryCode)\n      ) {\n        throw \"banned_country\";\n      }\n\n      if (\n        \"validCountries\" in opts &&\n        !opts.validCountries.includes(result.countryCode)\n      ) {\n        throw \"not_valid_country\";\n      }\n\n      return {\n        success: true,\n      };\n    } catch (error) {\n      return {\n        success: false,\n        reason: String(error),\n      };\n    }\n  }\n\n  static fraudChecker(payload: ConstructorType) {\n    return new FraudChecker(payload);\n  }\n}\n\nexport function fraudChecker(payload: ConstructorType) {\n  return new FraudChecker(payload);\n}\n"],"mappings":";AAgDA,IAAqB,eAArB,MAAqB,cAAa;AAAA,EACvB;AAAA,EAET,YAAY,SAA0B;AACpC,QAAI,OAAO,QAAQ,QAAQ,UAAU;AACnC,WAAK,MAAM,QAAQ;AAAA,IACrB;AAAA,EACF;AAAA,EAEA,MAAc,OAAO,IAAY;AAC/B,UAAM,QAAQ,QAAQ,KAAK,GAAG;AAE9B,UAAM,UAAU,QACZ,iCACA;AAEJ,UAAM,SAAS,IAAI,gBAAgB;AAAA,MACjC,KAAK,SAAS,KAAK,MAAM,KAAK,MAAM;AAAA,MACpC,QAAQ;AAAA,IACV,CAAC,EAAE,SAAS;AAEZ,UAAM,MAAM,GAAG,OAAO,GAAG,EAAE,IAAI,MAAM;AAErC,QAAI;AACF,YAAM,WAAW,MAAM,MAAM,GAAG;AAChC,UAAI,CAAC,SAAS,IAAI;AAChB,cAAM,IAAI,MAAM,uBAAuB,SAAS,MAAM,EAAE;AAAA,MAC1D;AACA,YAAM,OAAsB,MAAM,SAAS,KAAK;AAEhD,aAAO;AAAA,IACT,SAAS,OAAO;AACd,cAAQ,MAAM,yBAAyB,KAAK;AAC5C,YAAM;AAAA,IACR;AAAA,EACF;AAAA,EAEA,MAAa,OACX,IACA,MACyB;AACzB,QAAI;AAKF,YAAM,SAAS,MAAM,KAAK,OAAO,EAAE;AAEnC,UAAI,OAAO,WAAW,QAAQ;AAC5B,YAAI,KAAK,iBAAiB;AACxB,iBAAO;AAAA,YACL,SAAS;AAAA,UACX;AAAA,QACF;AAEA,cAAM;AAAA,MACR;AAEA,UACE,OAAO,SACP,CAAC,KAAK,cACN,EAAE,KAAK,qBAAqB,OAAO,QAAQ,yBAC3C;AACA,cAAM;AAAA,MACR;AAEA,UAAI,OAAO,WAAW,CAAC,KAAK,cAAc;AACxC,cAAM;AAAA,MACR;AAEA,UACE,qBAAqB,QACrB,KAAK,gBAAgB,SAAS,OAAO,WAAW,GAChD;AACA,cAAM;AAAA,MACR;AAEA,UACE,oBAAoB,QACpB,CAAC,KAAK,eAAe,SAAS,OAAO,WAAW,GAChD;AACA,cAAM;AAAA,MACR;AAEA,aAAO;AAAA,QACL,SAAS;AAAA,MACX;AAAA,IACF,SAAS,OAAO;AACd,aAAO;AAAA,QACL,SAAS;AAAA,QACT,QAAQ,OAAO,KAAK;AAAA,MACtB;AAAA,IACF;AAAA,EACF;AAAA,EAEA,OAAO,aAAa,SAA0B;AAC5C,WAAO,IAAI,cAAa,OAAO;AAAA,EACjC;AACF;AAEO,SAAS,aAAa,SAA0B;AACrD,SAAO,IAAI,aAAa,OAAO;AACjC;","names":[]}