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Glean TypeScript API Client

The Glean TypeScript SDK provides convenient access to the Glean REST API in both browser and Node.js environments. It offers full TypeScript types, modern async/await support, and uses the fetch API under the hood.

Table of Contents

SDK Installation

The SDK can be installed with either npm, pnpm, bun or yarn package managers.

NPM

npm add @gleanwork/api-client
# Install optional peer dependencies if you plan to use React hooks
npm add @tanstack/react-query react react-dom

PNPM

pnpm add @gleanwork/api-client
# Install optional peer dependencies if you plan to use React hooks
pnpm add @tanstack/react-query react react-dom

Bun

bun add @gleanwork/api-client
# Install optional peer dependencies if you plan to use React hooks
bun add @tanstack/react-query react react-dom

Yarn

yarn add @gleanwork/api-client zod
# Install optional peer dependencies if you plan to use React hooks
yarn add @tanstack/react-query react react-dom

# Note that Yarn does not install peer dependencies automatically. You will need
# to install zod as shown above.

Note

This package is published with CommonJS and ES Modules (ESM) support.

Requirements

For supported JavaScript runtimes, please consult RUNTIMES.md.

SDK Example Usage

Example 1

import { Glean } from "@gleanwork/api-client";

const glean = new Glean({
  bearerAuth: process.env["GLEAN_BEARER_AUTH"] ?? "",
});

async function run() {
  const result = await glean.client.chat.create({
    messages: [
      {
        fragments: [
          {
            text: "What are the company holidays this year?",
          },
        ],
      },
    ],
  });

  // Handle the result
  console.log(result);
}

run();

Example 2

import { Glean } from "@gleanwork/api-client";

const glean = new Glean({
  bearerAuth: process.env["GLEAN_BEARER_AUTH"] ?? "",
});

async function run() {
  const result = await glean.client.chat.createStream({
    messages: [
      {
        fragments: [
          {
            text: "What are the company holidays this year?",
          },
        ],
      },
    ],
  });

  // Handle the result
  console.log(result);
}

run();

Authentication

Per-Client Security Schemes

This SDK supports the following security scheme globally:

Name Type Scheme Environment Variable
bearerAuth http HTTP Bearer GLEAN_BEARER_AUTH

To authenticate with the API the bearerAuth parameter must be set when initializing the SDK client instance. For example:

import { Glean } from "@gleanwork/api-client";

const glean = new Glean({
  bearerAuth: process.env["GLEAN_BEARER_AUTH"] ?? "",
});

async function run() {
  await glean.client.activity.report({
    events: [
      {
        action: "HISTORICAL_VIEW",
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
      {
        action: "SEARCH",
        params: {
          query: "query",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/search?q=query",
      },
      {
        action: "VIEW",
        params: {
          duration: 20,
          referrer: "https://example.com/document",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
    ],
  });
}

run();

Available Resources and Operations

Available methods

client

client.activity

client.admin

client.admin.search

  • query - Search the index (admin)

client.agents

client.announcements

client.answers

client.authentication

client.chat

client.collections

client.documents

client.entities

client.insights

client.messages

client.pins

client.search

client.shortcuts

client.verification

indexing

indexing.authentication

indexing.datasource

  • status - Beta: Get datasource status

indexing.datasources

indexing.documents

  • addOrUpdate - Index document

  • index - Index documents

  • bulkIndex - Bulk index documents

  • processAll - Schedules the processing of uploaded documents

  • delete - Delete document

  • debug - Beta: Get document information

  • debugMany - Beta: Get information of a batch of documents

  • checkAccess - Check document access

  • status - Get document upload and indexing status ⚠️ Deprecated

  • count - Get document count ⚠️ Deprecated

indexing.people

indexing.permissions

indexing.shortcuts

people

search

Standalone functions

All the methods listed above are available as standalone functions. These functions are ideal for use in applications running in the browser, serverless runtimes or other environments where application bundle size is a primary concern. When using a bundler to build your application, all unused functionality will be either excluded from the final bundle or tree-shaken away.

To read more about standalone functions, check FUNCTIONS.md.

Available standalone functions

React hooks with TanStack Query

React hooks built on TanStack Query are included in this SDK. These hooks and the utility functions provided alongside them can be used to build rich applications that pull data from the API using one of the most popular asynchronous state management library.

To learn about this feature and how to get started, check REACT_QUERY.md.

Warning

This feature is currently in preview and is subject to breaking changes within the current major version of the SDK as we gather user feedback on it.

Available React hooks

Retries

Some of the endpoints in this SDK support retries. If you use the SDK without any configuration, it will fall back to the default retry strategy provided by the API. However, the default retry strategy can be overridden on a per-operation basis, or across the entire SDK.

To change the default retry strategy for a single API call, simply provide a retryConfig object to the call:

import { Glean } from "@gleanwork/api-client";

const glean = new Glean({
  bearerAuth: process.env["GLEAN_BEARER_AUTH"] ?? "",
});

async function run() {
  await glean.client.activity.report({
    events: [
      {
        action: "HISTORICAL_VIEW",
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
      {
        action: "SEARCH",
        params: {
          query: "query",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/search?q=query",
      },
      {
        action: "VIEW",
        params: {
          duration: 20,
          referrer: "https://example.com/document",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
    ],
  }, {
    retries: {
      strategy: "backoff",
      backoff: {
        initialInterval: 1,
        maxInterval: 50,
        exponent: 1.1,
        maxElapsedTime: 100,
      },
      retryConnectionErrors: false,
    },
  });
}

run();

If you'd like to override the default retry strategy for all operations that support retries, you can provide a retryConfig at SDK initialization:

import { Glean } from "@gleanwork/api-client";

const glean = new Glean({
  retryConfig: {
    strategy: "backoff",
    backoff: {
      initialInterval: 1,
      maxInterval: 50,
      exponent: 1.1,
      maxElapsedTime: 100,
    },
    retryConnectionErrors: false,
  },
  bearerAuth: process.env["GLEAN_BEARER_AUTH"] ?? "",
});

async function run() {
  await glean.client.activity.report({
    events: [
      {
        action: "HISTORICAL_VIEW",
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
      {
        action: "SEARCH",
        params: {
          query: "query",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/search?q=query",
      },
      {
        action: "VIEW",
        params: {
          duration: 20,
          referrer: "https://example.com/document",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
    ],
  });
}

run();

Error Handling

The following errors may be thrown by the SDK:

Status Code Description Error Type Content Type
400 Invalid Request errors.GleanError */*
401 Not Authorized errors.GleanError */*
403 Permission Denied errors.GleanDataError application/json
408 Request Timeout errors.GleanError */*
422 Invalid Query errors.GleanDataError application/json
429 Too Many Requests errors.GleanError */*
4XX Other Client Errors errors.GleanError */*
5XX Internal Server Errors errors.GleanError */*

Example

import { Glean } from "@gleanwork/api-client";
import { GleanDataError, GleanError } from "glean/models/errors";

const glean = new Glean({
  bearerAuth: process.env["GLEAN_BEARER_AUTH"] ?? "",
});

try {
  const data = await glean.client.search.execute({
    query: "What are the company holidays this year?",
  });
  console.log(data);
} catch (error) {
  if (error instanceof GleanError) {
    console.error(error.message);
    console.error(error.statusCode);
    console.error(error.rawResponse);
    console.error(error.body);
  }

  // If the server returned structured data
  if (error instanceof GleanDataError) {
    console.error(error.errorMessages);
    console.error(error.invalidOperators);
  }

  throw error;
}

Advanced Error Handling

Validation errors can also occur when either method arguments or data returned from the server do not match the expected format. The SDKValidationError that is thrown as a result will capture the raw value that failed validation in an attribute called rawValue. Additionally, a pretty() method is available on this error that can be used to log a nicely formatted multi-line string since validation errors can list many issues and the plain error string may be difficult read when debugging.

In some rare cases, the SDK can fail to get a response from the server or even make the request due to unexpected circumstances such as network conditions. These types of errors are captured in the models/errors/httpclienterrors.ts module:

HTTP Client Error Description
RequestAbortedError HTTP request was aborted by the client
RequestTimeoutError HTTP request timed out due to an AbortSignal signal
ConnectionError HTTP client was unable to make a request to a server
InvalidRequestError Any input used to create a request is invalid
UnexpectedClientError Unrecognised or unexpected error

Server Selection

Server Variables

The default server https://{domain}-be.glean.com contains variables and is set to https://domain-be.glean.com by default. To override default values, the following parameters are available when initializing the SDK client instance:

Variable Parameter Default Description
domain domain: string "domain" Email domain (without extension) that determines the deployment backend.

Example

import { Glean } from "@gleanwork/api-client";

const glean = new Glean({
  domain: "scared-pearl.biz",
  bearerAuth: process.env["GLEAN_BEARER_AUTH"] ?? "",
});

async function run() {
  await glean.client.activity.report({
    events: [
      {
        action: "HISTORICAL_VIEW",
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
      {
        action: "SEARCH",
        params: {
          query: "query",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/search?q=query",
      },
      {
        action: "VIEW",
        params: {
          duration: 20,
          referrer: "https://example.com/document",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
    ],
  });
}

run();

Override Server URL Per-Client

The default server can be overridden globally by passing a URL to the serverURL: string optional parameter when initializing the SDK client instance. For example:

import { Glean } from "@gleanwork/api-client";

const glean = new Glean({
  serverURL: "https://domain-be.glean.com",
  bearerAuth: process.env["GLEAN_BEARER_AUTH"] ?? "",
});

async function run() {
  await glean.client.activity.report({
    events: [
      {
        action: "HISTORICAL_VIEW",
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
      {
        action: "SEARCH",
        params: {
          query: "query",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/search?q=query",
      },
      {
        action: "VIEW",
        params: {
          duration: 20,
          referrer: "https://example.com/document",
        },
        timestamp: new Date("2000-01-23T04:56:07.000Z"),
        url: "https://example.com/",
      },
    ],
  });
}

run();

Custom HTTP Client

The TypeScript SDK makes API calls using an HTTPClient that wraps the native Fetch API. This client is a thin wrapper around fetch and provides the ability to attach hooks around the request lifecycle that can be used to modify the request or handle errors and response.

The HTTPClient constructor takes an optional fetcher argument that can be used to integrate a third-party HTTP client or when writing tests to mock out the HTTP client and feed in fixtures.

The following example shows how to use the "beforeRequest" hook to to add a custom header and a timeout to requests and how to use the "requestError" hook to log errors:

import { Glean } from "@gleanwork/api-client";
import { HTTPClient } from "@gleanwork/api-client/lib/http";

const httpClient = new HTTPClient({
  // fetcher takes a function that has the same signature as native `fetch`.
  fetcher: (request) => {
    return fetch(request);
  }
});

httpClient.addHook("beforeRequest", (request) => {
  const nextRequest = new Request(request, {
    signal: request.signal || AbortSignal.timeout(5000)
  });

  nextRequest.headers.set("x-custom-header", "custom value");

  return nextRequest;
});

httpClient.addHook("requestError", (error, request) => {
  console.group("Request Error");
  console.log("Reason:", `${error}`);
  console.log("Endpoint:", `${request.method} ${request.url}`);
  console.groupEnd();
});

const sdk = new Glean({ httpClient });

Debugging

You can setup your SDK to emit debug logs for SDK requests and responses.

You can pass a logger that matches console's interface as an SDK option.

Warning

Beware that debug logging will reveal secrets, like API tokens in headers, in log messages printed to a console or files. It's recommended to use this feature only during local development and not in production.

import { Glean } from "@gleanwork/api-client";

const sdk = new Glean({ debugLogger: console });

You can also enable a default debug logger by setting an environment variable GLEAN_DEBUG to true.

Development

Maturity

This SDK is in beta, and there may be breaking changes between versions without a major version update. Therefore, we recommend pinning usage to a specific package version. This way, you can install the same version each time without breaking changes unless you are intentionally looking for the latest version.

Contributions

While we value open-source contributions to this SDK, this library is generated programmatically. Any manual changes added to internal files will be overwritten on the next generation. We look forward to hearing your feedback. Feel free to open a PR or an issue with a proof of concept and we'll do our best to include it in a future release.

SDK Created by Speakeasy

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