feat: gotOptions to override default Got configuration

CHANGELOG.MD

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- added the `gotOptions` property to the `BlockFrostAPI` class. This property can be passed during the initialization of the `BlockFrostAPI` object. For more details, refer to the [Got Options documentation](https://github.com/sindresorhus/got/blob/main/documentation/2-options.md).
+
 
 ## [5.5.0] - 2023-12-20
 

README.md

@@ -67,6 +67,8 @@ const API = new Blockfrost.BlockFrostAPI({
 - `debug` - `boolean`, whether to enable debug logging. It is also possible to enable it by setting environment variable `DEBUG` to `true` (optional, default `false`).
 - `customBackend` - `string`, option to set URL to a non-official backend (optional)
 - `version` - `number`, version of the Blockfrost API (optional, default `0`)
+- `gotOptions` - Additional options to be passed to Got instance. For more details, refer to the [Got Options documentation](https://github.com/sindresorhus/got/blob/main/documentation/2-options.md).
+
 
 ## Error handling
 

src/types/index.ts

@@ -10,6 +10,7 @@ import {
   MaxRedirectsError,
   UnsupportedProtocolError,
   RequiredRetryOptions,
+  Options as GotOptions,
 } from 'got';
 import { RateLimiterConfig } from '../utils/limiter';
 
@@ -44,6 +45,7 @@ type AdditionalOptions = {
   userAgent?: string;
   requestTimeout?: number;
   retrySettings?: RequiredRetryOptions;
+  gotOptions?: GotOptions; // https://github.com/sindresorhus/got/blob/main/documentation/2-options.md
 };
 
 export type Options = (OptionCombination1 | OptionCombination2) &
@@ -61,6 +63,7 @@ export interface ValidatedOptions {
   projectId?: string;
   network?: BlockfrostNetwork;
   retrySettings?: RequiredRetryOptions;
+  gotOptions?: GotOptions;
 }
 
 export type HashOrNumber = string | number;

src/utils/got.ts

@@ -41,5 +41,7 @@ export const getInstance = (
     timeout: {
       request: options.requestTimeout,
     },
+    // https://github.com/sindresorhus/got/blob/main/documentation/2-options.md
+    ...options.gotOptions,
   });
 };

src/utils/index.ts

@@ -60,6 +60,7 @@ export const validateOptions = (options?: Options): ValidatedOptions => {
     version: options.version || DEFAULT_API_VERSION,
     debug,
     http2: options.http2 ?? false,
+    gotOptions: options.gotOptions || undefined,
     requestTimeout: options.requestTimeout ?? 20000, // 20 seconds
     // see: https://github.com/sindresorhus/got/blob/main/documentation/7-retry.md#retry
     retrySettings: options.retrySettings ?? {

test/tests/utils/utils.ts

@@ -5,8 +5,13 @@ import {
   AdditionalEndpointOptions,
   PaginationOptions,
 } from '../../../src/types';
-import { DEFAULT_PAGINATION_PAGE_ITEMS_COUNT } from '../../../src/config';
+import {
+  API_URLS,
+  DEFAULT_PAGINATION_PAGE_ITEMS_COUNT,
+} from '../../../src/config';
 import { RATE_LIMITER_DEFAULT_CONFIG } from '../../../src/utils/limiter';
+import nock from 'nock';
+import { SDK } from '../../utils';
 
 describe('utils', () => {
   test('no options', () => {
@@ -290,4 +295,26 @@ describe('utils', () => {
       ).length,
     ).toBe(201); // check if order option really propagated to a method passed as param
   });
+
+  test('gotOptions passed and override default options', async () => {
+    const api = new BlockFrostAPI({
+      projectId: 'xxx',
+      gotOptions: {
+        headers: {
+          'User-Agent': 'from gotOptions',
+        },
+      },
+    });
+
+    const BASE_URL = `${API_URLS.mainnet}/v0`;
+    const path = /.*/;
+
+    nock(BASE_URL)
+      .get(path)
+      .reply(200, { message: 'response' })
+      .matchHeader('User-Agent', 'from gotOptions');
+
+    const response = await api.blocksLatest();
+    expect(response).toMatchObject({ message: 'response' });
+  });
 });