Emanifest NPM | npm.io

e-Manifest NPM package

Intro

The emanifest npm package is an API client library. It simplifies the task of using the RCRAInfo/e-Manifest web services by abstracting the authentication process, providing developer friendly API, and exporting TypeScript types. It's built on top of the Axios library, and can be used in both Node and browser runtime environments (EPA has discussed making some public API available that do not need authentication in the near future).

For additional information about e-Manifest, check out the below links

For a python alternative see the emanifest package on PyPI

Installation

  $ npm install emanifest
  or
  $ yarn add emanifest

Basic Usage

The primary export of the emanifest package is the newClient function. A constructor that accepts a configuration object and returns a new RcraClient instance.

import { AxiosResponse } from 'axios';
import { newClient, RCRAINFO_PREPROD, AuthResponse } from 'emanifest';

// The newClient accepts an instance of the RcraClientConfig which follows this interface
// interface RcraClientConfig {
// apiBaseURL?: RcrainfoEnv; // default: RCRAINFO_PREPROD
// apiID?: string;
// apiKey?: string;
// autoAuth?: Boolean; // default: false
// validateInput?: Boolean; // default: false
// }

const rcrainfo = newClient({ apiBaseURL: RCRAINFO_PREPROD, apiID: 'my_api_id', apiKey: 'my_api_key' });
const authResponse: AxiosResponse<AuthResponse> = await rcrainfo.authenticate();
console.log(authResponse.data);

Other Exports

The emanifest package also exports the RCRAINFO_PREPROD and RCRAINFO_PROD constants which can be used to set the apiBaseURL property of the RcraClientConfig object.

Types

The emanifest package exports types/interfaces that can be used in statically typed projects. The types follow the OpenAPI schema definitions that can be found in the USEPA/e-manifest schema directory however, some names have been modified for clarity (for example RcraCode instead of simply Code).

Auto-Authentication

The emanifest package can be explicitly configured to automatically authenticate when needed.

import { AxiosResponse } from 'axios';
import { newClient, RCRAINFO_PREPROD, AuthResponse, RcraClientClass, RcraCode } from 'emanifest';

const rcrainfo = newClient({
  apiBaseURL: RCRAINFO_PREPROD,
  apiID: 'my_api_id',
  apiKey: 'my_api_key',
  autoAuth: true, // Set the RcraClient to automatically authenticate as needed
});

// the authenticate method is NOT explicitly called
const resp: AxtiosResponse<RcraCode> = await rcrainfo.getStateWasteCodes('VA');

console.log(resp.data); // [ { code: 'BCRUSH', description: 'Bulb or Lamp Crusher' } ]

console.log(rcrainfo.isAuthenticated()); // true

Input Validation

The emanifest package can be explicitly configured to provide some simple input validation. This behavior is disabled by default. It must be explicitly enabled by setting the validateInput property of the RcraClientConfig on initiation.

siteID must be a string of length 12
stateCode must be a string of length 2
siteType must be one of the following: 'Generator', 'Tsdf', 'Transporter', 'Rejection_AlternateTsdf'
dateType (a search parameter) must be one of the following: 'CertifiedDate', 'ReceivedDate', 'ShippedDate', 'UpdatedDate'
manifestTrackingNumber must be a string of length 12

Upon validation failure, the RcraClient will throw an error which can be caught and handled the same as an error received from the axios library.

import { newClient } from 'emanifest';

const rcrainfo = newClient({ validateInput: true });

try {
  const resp = await rcrainfo.getSite('VA12345');
} catch (err) {
  console.log(err.message); // "siteID must be a string of length 12"
}

Manifest Attachments

The emanifest NPM package has alpha support for retrieving multipart/mixed content types from the RCRAInfo services. This feature is disabled by default and must be explicitly enabled by passing parseResponse as true in methods that return multipart/mixed content types.

import { AxiosResponse } from 'axios';
import { newClient } from 'emanifest';
import { OutputPart } from 'emanifest-js/src/parse';

const rcrainfo = newClient({ validateInput: true });

const resp: AxiosResponse<OutputPart> = await rcrainfo.getManifestAttachments({
  manifestTrackingNumber: '123456789ELC',
  parseResponse: true,
});
console.log(resp.data);
// {
//  contentType: 'application/json' | 'application/octet-stream';
//  contentDisposition?: string;
//  data: string | Buffer;
// }

Disclaimer

The United States Environmental Protection Agency (EPA) GitHub project code is provided on an "as is" basis and the user assumes responsibility for its use. EPA has relinquished control of the information and no longer has responsibility to protect the integrity, confidentiality, or availability of the information. Any reference to specific commercial products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply their endorsement, recommendation or favoring by EPA. The EPA seal and logo shall not be used in any manner to imply endorsement of any commercial product or activity by EPA or the United States Government.