npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

@epcc-sdk/commerce-extensions

v0.0.3

Published

Below you'll find instructions on how to install, set up, and use the client, along with a list of available operations.

Readme

@epcc-sdk/commerce-extensions SDK

Below you'll find instructions on how to install, set up, and use the client, along with a list of available operations.

Features

  • type-safe response data and errors
  • response data validation and transformation
  • access to the original request and response
  • granular request and response customization options
  • minimal learning curve thanks to extending the underlying technology

Installation

npm install @epcc-sdk/commerce-extensions
# or
pnpm install @epcc-sdk/commerce-extensions
# or
yarn add @epcc-sdk/commerce-extensions

Client Usage

Clients are responsible for sending the actual HTTP requests.

The Fetch client is built as a thin wrapper on top of Fetch API, extending its functionality. If you're already familiar with Fetch, configuring your client will feel like working directly with Fetch API.

You can configure the client in two ways:

  • Configuring the internal client instance directly
  • Using the createClient function

When using the operation function to make requests, by default the global client will be used unless another is provided.

1. Configure the internal client instance directly

This is the simpler approach. You can call the setConfig() method at the beginning of your application or anytime you need to update the client configuration. You can pass any Fetch API configuration option to setConfig(), and even your own Fetch implementation.

import { client } from "@epcc-sdk/commerce-extensions";

client.setConfig({
// set default base url for requests
baseUrl: 'https://euwest.api.elasticpath.com',

// set default headers for requests
headers: {
Authorization: 'Bearer YOUR_AUTH_TOKEN',
},
});

The disadvantage of this approach is that your code may call the client instance before it's configured for the first time. Depending on your use case, you might need to use the second approach.

2. Using the createClient function

This is useful when you want to use a different instance of the client for different parts of your application or when you want to use different configurations for different parts of your application.

import { createClient } from "@epcc-sdk/commerce-extensions";

// Create the client with your API base URL.
const client = createClient({
    // set default base url for requests
    baseUrl: "https://euwest.api.elasticpath.com",
    /**
    * Set default headers only for requests made by this client.
    */
    headers: {
        "Custom-Header": 'My Value',
    },
});

You can also pass this instance to any SDK function through the client option. This will override the default instance from `import { client } from "@epcc-sdk/commerce-extensions>".

const response = await getACustomEntry({
    client: myClient,
});

Direct configuration

Alternatively, you can pass the client configuration options to each SDK function. This is useful if you don't want to create a client instance for one-off use cases.

const response = await getACustomEntry({
    baseUrl: 'https://example.com', // <-- override default configuration
});

Interceptors (Middleware)

Interceptors (middleware) can be used to modify requests before they're sent or responses before they're returned to your application. They can be added with use and removed with eject. Below is an example request interceptor

import { client } from "@epcc-sdk/commerce-extensions";

// Supports async functions
client.interceptors.request.use(async (request) => {
    // do something
    return request;
});

client.interceptors.request.eject((request) => {
    // do something
    return request;
});

and an example response interceptor

import { client } from "@epcc-sdk/commerce-extensions";

client.interceptors.response.use((response) => {
    // do something
    return response;
});

client.interceptors.response.eject((response) => {
    // do something
    return response;
});

Tip: To eject, you must provide a reference to the function that was passed to use().

Authentication

We are working to provide helpers to handle auth easier for you but for now using an interceptor is the easiest method.

import { client } from "@epcc-sdk/commerce-extensions";

client.interceptors.request.use((request, options) => {
  request.headers.set('Authorization', 'Bearer MY_TOKEN');
  return request;
});

Build URL

If you need to access the compiled URL, you can use the buildUrl() method. It's loosely typed by default to accept almost any value; in practice, you will want to pass a type hint.

type FooData = {
  path: {
    fooId: number;
  };
  query?: {
    bar?: string;
  };
  url: '/foo/{fooId}';
};

const url = client.buildUrl<FooData>({
  path: {
    fooId: 1,
  },
  query: {
    bar: 'baz',
  },
  url: '/foo/{fooId}',
});
console.log(url); // prints '/foo/1?bar=baz'

Operation Usage

The following examples demonstrate how to use the operation function to make requests.

import { getACustomEntry } from "@epcc-sdk/commerce-extensions";

const product = await getACustomEntry({
  // client: localClient, // optional if you have a client instance you want to use otherwise the global client will be used
  path: {
    ...
  },
  query: {
    ...
  },
});

Available Operations

getAllCustomApis

Endpoint: GET /v2/settings/extensions/custom-apis

Summary: Get all Custom APIs

Description: GET operation

TypeScript Example:

import { getAllCustomApis, type GetAllCustomApisData, type GetAllCustomApisResponse } from "@epcc-sdk/commerce-extensions";

const params: GetAllCustomApisData = {
  query: {
    "page[offset]": 0, // OPTIONAL
    "page[limit]": 10, // OPTIONAL
    "filter": "eq(name,\"Product Name\")", // OPTIONAL
  },
};

const result: GetAllCustomApisResponse = await getAllCustomApis(params);

createACustomApi

Endpoint: POST /v2/settings/extensions/custom-apis

Summary: Create a Custom API

Description: POST operation

TypeScript Example:

import { createACustomApi, type CreateACustomApiData, type CreateACustomApiResponse } from "@epcc-sdk/commerce-extensions";

const params: CreateACustomApiData = {
  body: {
    data: {
      type: "resource",
      attributes: {
        name: "Resource Name",
        description: "Resource Description"
      }
    }
  },
};

const result: CreateACustomApiResponse = await createACustomApi(params);

deleteACustomApi

Endpoint: DELETE /v2/settings/extensions/custom-apis/{custom_api_id}

Summary: Delete a Custom API

Description: DELETE operation

TypeScript Example:

import { deleteACustomApi, type DeleteACustomApiData, type DeleteACustomApiResponse } from "@epcc-sdk/commerce-extensions";

const params: DeleteACustomApiData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
  },
};

const result: DeleteACustomApiResponse = await deleteACustomApi(params);

getACustomApi

Endpoint: GET /v2/settings/extensions/custom-apis/{custom_api_id}

Summary: Get a Custom API

Description: GET operation

TypeScript Example:

import { getACustomApi, type GetACustomApiData, type GetACustomApiResponse } from "@epcc-sdk/commerce-extensions";

const params: GetACustomApiData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
  },
};

const result: GetACustomApiResponse = await getACustomApi(params);

updateACustomApi

Endpoint: PUT /v2/settings/extensions/custom-apis/{custom_api_id}

Summary: Update a Custom API

Description: PUT operation

TypeScript Example:

import { updateACustomApi, type UpdateACustomApiData, type UpdateACustomApiResponse } from "@epcc-sdk/commerce-extensions";

const params: UpdateACustomApiData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
  },
  body: {
    data: {
      type: "resource",
      attributes: {
        name: "Resource Name",
        description: "Resource Description"
      }
    }
  },
};

const result: UpdateACustomApiResponse = await updateACustomApi(params);

getOpenApiSpecification

Endpoint: GET /v2/settings/extensions/specifications/openapi

Summary: Get OpenAPI Specification

Description: GET operation

TypeScript Example:

import { getOpenApiSpecification, type GetOpenApiSpecificationData, type GetOpenApiSpecificationResponse } from "@epcc-sdk/commerce-extensions";

const params: GetOpenApiSpecificationData = {
};

const result: GetOpenApiSpecificationResponse = await getOpenApiSpecification(params);

getAllCustomFields

Endpoint: GET /v2/settings/extensions/custom-apis/{custom_api_id}/fields

Summary: Get all Custom Fields

Description: GET operation

TypeScript Example:

import { getAllCustomFields, type GetAllCustomFieldsData, type GetAllCustomFieldsResponse } from "@epcc-sdk/commerce-extensions";

const params: GetAllCustomFieldsData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
  },
  query: {
    "page[offset]": 0, // OPTIONAL
    "page[limit]": 10, // OPTIONAL
    "filter": "eq(name,\"Product Name\")", // OPTIONAL
  },
};

const result: GetAllCustomFieldsResponse = await getAllCustomFields(params);

createACustomField

Endpoint: POST /v2/settings/extensions/custom-apis/{custom_api_id}/fields

Summary: Create a Custom Field

Description: POST operation

TypeScript Example:

import { createACustomField, type CreateACustomFieldData, type CreateACustomFieldResponse } from "@epcc-sdk/commerce-extensions";

const params: CreateACustomFieldData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
  },
  body: {
    data: {
      type: "resource",
      attributes: {
        name: "Resource Name",
        description: "Resource Description"
      }
    }
  },
};

const result: CreateACustomFieldResponse = await createACustomField(params);

deleteACustomField

Endpoint: DELETE /v2/settings/extensions/custom-apis/{custom_api_id}/fields/{custom_field_id}

Summary: Delete a Custom Field

Description: DELETE operation

TypeScript Example:

import { deleteACustomField, type DeleteACustomFieldData, type DeleteACustomFieldResponse } from "@epcc-sdk/commerce-extensions";

const params: DeleteACustomFieldData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
    custom_field_id: "12345678-1234-5678-9012-123456789012",
  },
};

const result: DeleteACustomFieldResponse = await deleteACustomField(params);

getACustomField

Endpoint: GET /v2/settings/extensions/custom-apis/{custom_api_id}/fields/{custom_field_id}

Summary: Get a Custom Field

Description: GET operation

TypeScript Example:

import { getACustomField, type GetACustomFieldData, type GetACustomFieldResponse } from "@epcc-sdk/commerce-extensions";

const params: GetACustomFieldData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
    custom_field_id: "12345678-1234-5678-9012-123456789012",
  },
};

const result: GetACustomFieldResponse = await getACustomField(params);

updateACustomField

Endpoint: PUT /v2/settings/extensions/custom-apis/{custom_api_id}/fields/{custom_field_id}

Summary: Update a Custom Field

Description: PUT operation

TypeScript Example:

import { updateACustomField, type UpdateACustomFieldData, type UpdateACustomFieldResponse } from "@epcc-sdk/commerce-extensions";

const params: UpdateACustomFieldData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
    custom_field_id: "12345678-1234-5678-9012-123456789012",
  },
  body: {
    data: {
      type: "resource",
      attributes: {
        name: "Resource Name",
        description: "Resource Description"
      }
    }
  },
};

const result: UpdateACustomFieldResponse = await updateACustomField(params);

getAllCustomEntries

Endpoint: GET /v2/settings/extensions/custom-apis/{custom_api_id}/entries

Summary: Get all Custom API Entries

Description: GET operation

TypeScript Example:

import { getAllCustomEntries, type GetAllCustomEntriesData, type GetAllCustomEntriesResponse } from "@epcc-sdk/commerce-extensions";

const params: GetAllCustomEntriesData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
  },
  query: {
    "page[offset]": 0, // OPTIONAL
    "page[limit]": 10, // OPTIONAL
    "page[total_method]": "pagetotal_method", // OPTIONAL
  },
};

const result: GetAllCustomEntriesResponse = await getAllCustomEntries(params);

createACustomEntry

Endpoint: POST /v2/settings/extensions/custom-apis/{custom_api_id}/entries

Summary: Create a Custom API Entry using the settings endpoint

Description: POST operation

TypeScript Example:

import { createACustomEntry, type CreateACustomEntryData, type CreateACustomEntryResponse } from "@epcc-sdk/commerce-extensions";

const params: CreateACustomEntryData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
  },
  body: {
    data: {
      type: "resource",
      attributes: {
        name: "Resource Name",
        description: "Resource Description"
      }
    }
  },
};

const result: CreateACustomEntryResponse = await createACustomEntry(params);

deleteACustomEntry

Endpoint: DELETE /v2/settings/extensions/custom-apis/{custom_api_id}/entries/{custom_api_entry_id}

Summary: Delete a Custom API Entry

Description: DELETE operation

TypeScript Example:

import { deleteACustomEntry, type DeleteACustomEntryData, type DeleteACustomEntryResponse } from "@epcc-sdk/commerce-extensions";

const params: DeleteACustomEntryData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
    custom_api_entry_id: "12345678-1234-5678-9012-123456789012",
  },
  headers: {
    "If-Match": "header-value", // OPTIONAL
  },
};

const result: DeleteACustomEntryResponse = await deleteACustomEntry(params);

getACustomEntry

Endpoint: GET /v2/settings/extensions/custom-apis/{custom_api_id}/entries/{custom_api_entry_id}

Summary: Get a Custom API Entry using the settings endpoint

Description: GET operation

TypeScript Example:

import { getACustomEntry, type GetACustomEntryData, type GetACustomEntryResponse } from "@epcc-sdk/commerce-extensions";

const params: GetACustomEntryData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
    custom_api_entry_id: "12345678-1234-5678-9012-123456789012",
  },
};

const result: GetACustomEntryResponse = await getACustomEntry(params);

updateACustomEntry

Endpoint: PUT /v2/settings/extensions/custom-apis/{custom_api_id}/entries/{custom_api_entry_id}

Summary: Update a Custom API Entry using the settings endpoint

Description: PUT operation

TypeScript Example:

import { updateACustomEntry, type UpdateACustomEntryData, type UpdateACustomEntryResponse } from "@epcc-sdk/commerce-extensions";

const params: UpdateACustomEntryData = {
  path: {
    custom_api_id: "12345678-1234-5678-9012-123456789012",
    custom_api_entry_id: "12345678-1234-5678-9012-123456789012",
  },
  headers: {
    "If-Match": "header-value", // OPTIONAL
  },
  body: {
    data: {
      type: "resource",
      attributes: {
        name: "Resource Name",
        description: "Resource Description"
      }
    }
  },
};

const result: UpdateACustomEntryResponse = await updateACustomEntry(params);

getCustomEntriesSettings

Endpoint: GET /v2/extensions/{custom_api_slug}

Summary: Get all Custom API Entries using the extensions endpoint

Description: GET operation

TypeScript Example:

import { getCustomEntriesSettings, type GetCustomEntriesSettingsData, type GetCustomEntriesSettingsResponse } from "@epcc-sdk/commerce-extensions";

const params: GetCustomEntriesSettingsData = {
  path: {
    custom_api_slug: "product-slug",
  },
};

const result: GetCustomEntriesSettingsResponse = await getCustomEntriesSettings(params);

createACustomEntrySettings

Endpoint: POST /v2/extensions/{custom_api_slug}

Summary: Create a Custom API Entry using the extensions endpoint

Description: POST operation

TypeScript Example:

import { createACustomEntrySettings, type CreateACustomEntrySettingsData, type CreateACustomEntrySettingsResponse } from "@epcc-sdk/commerce-extensions";

const params: CreateACustomEntrySettingsData = {
  path: {
    custom_api_slug: "product-slug",
  },
  body: {
    data: {
      type: "resource",
      attributes: {
        name: "Resource Name",
        description: "Resource Description"
      }
    }
  },
};

const result: CreateACustomEntrySettingsResponse = await createACustomEntrySettings(params);

deleteACustomEntrySettings

Endpoint: DELETE /v2/extensions/{custom_api_slug}/{custom_api_entry_id}

Summary: Delete a Custom API Entry using the extensions endpoint

Description: DELETE operation

TypeScript Example:

import { deleteACustomEntrySettings, type DeleteACustomEntrySettingsData, type DeleteACustomEntrySettingsResponse } from "@epcc-sdk/commerce-extensions";

const params: DeleteACustomEntrySettingsData = {
  path: {
    custom_api_slug: "product-slug",
    custom_api_entry_id: "12345678-1234-5678-9012-123456789012",
  },
};

const result: DeleteACustomEntrySettingsResponse = await deleteACustomEntrySettings(params);

getACustomEntrySettings

Endpoint: GET /v2/extensions/{custom_api_slug}/{custom_api_entry_id}

Summary: Get a Custom API Entry using the extensions endpoint

Description: GET operation

TypeScript Example:

import { getACustomEntrySettings, type GetACustomEntrySettingsData, type GetACustomEntrySettingsResponse } from "@epcc-sdk/commerce-extensions";

const params: GetACustomEntrySettingsData = {
  path: {
    custom_api_slug: "product-slug",
    custom_api_entry_id: "12345678-1234-5678-9012-123456789012",
  },
};

const result: GetACustomEntrySettingsResponse = await getACustomEntrySettings(params);

putACustomEntrySettings

Endpoint: PUT /v2/extensions/{custom_api_slug}/{custom_api_entry_id}

Summary: Update a Custom API Entry using the extensions endpoint

Description: PUT operation

TypeScript Example:

import { putACustomEntrySettings, type PutACustomEntrySettingsData, type PutACustomEntrySettingsResponse } from "@epcc-sdk/commerce-extensions";

const params: PutACustomEntrySettingsData = {
  path: {
    custom_api_slug: "product-slug",
    custom_api_entry_id: "12345678-1234-5678-9012-123456789012",
  },
  body: {
    data: {
      type: "resource"
    }
  },
};

const result: PutACustomEntrySettingsResponse = await putACustomEntrySettings(params);