add feed queries

packages/client/src/explore/Explore.ts

@@ -1,8 +1,7 @@
 import type { Authentication } from '../authentication';
 import type { LensConfig } from '../consts/config';
 import { FetchGraphQLClient } from '../graphql/FetchGraphQLClient';
-import type { ProfileFragment } from '../graphql/fragments.generated';
-import type { PublicationFragment } from '../graphql/types';
+import type { PostFragment, ProfileFragment, QuoteFragment } from '../graphql/fragments.generated';
 import type { ExploreProfilesRequest, ExplorePublicationRequest } from '../graphql/types.generated';
 import {
   buildImageTransformsFromConfig,
@@ -34,7 +33,7 @@ export class Explore {
   async publications(
     request: ExplorePublicationRequest,
     observerId?: string,
-  ): Promise<PaginatedResult<PublicationFragment>> {
+  ): Promise<PaginatedResult<PostFragment | QuoteFragment>> {
     return provideAuthHeaders(this.authentication, async (headers) => {
       return buildPaginatedQueryResult(async (currRequest) => {
         const result = await this.sdk.ExplorePublications(

packages/client/src/feed/Feed.ts

@@ -0,0 +1,108 @@
+import type { PromiseResult } from '@lens-protocol/shared-kernel';
+
+import type { Authentication } from '../authentication';
+import type { LensConfig } from '../consts/config';
+import type { CredentialsExpiredError, NotAuthenticatedError } from '../consts/errors';
+import { FetchGraphQLClient } from '../graphql/FetchGraphQLClient';
+import type { PostFragment, QuoteFragment } from '../graphql/fragments.generated';
+import type {
+  FeedHighlightsRequest,
+  FeedRequest,
+  PublicationForYouRequest,
+} from '../graphql/types.generated';
+import {
+  buildImageTransformsFromConfig,
+  buildPaginatedQueryResult,
+  PaginatedResult,
+  requireAuthHeaders,
+} from '../helpers';
+import { FeedItemFragment, getSdk, Sdk } from './graphql/feed.generated';
+
+/**
+ * Feed is one of the most fundamental element to create a successful social media site.
+ *
+ * @group LensClient Modules
+ */
+export class Feed {
+  private readonly authentication: Authentication | undefined;
+  private readonly sdk: Sdk;
+
+  constructor(
+    private readonly config: LensConfig,
+    authentication: Authentication,
+  ) {
+    const client = new FetchGraphQLClient(config.environment.gqlEndpoint);
+
+    this.sdk = getSdk(client);
+    this.authentication = authentication;
+  }
+
+  async fetch(
+    request: FeedRequest,
+    observerId?: string,
+  ): PromiseResult<
+    PaginatedResult<FeedItemFragment>,
+    CredentialsExpiredError | NotAuthenticatedError
+  > {
+    return requireAuthHeaders(this.authentication, async (headers) => {
+      return buildPaginatedQueryResult(async (currRequest) => {
+        const result = await this.sdk.Feed(
+          {
+            request: currRequest,
+            observerId,
+            ...buildImageTransformsFromConfig(this.config.mediaTransforms),
+          },
+          headers,
+        );
+
+        return result.data.result;
+      }, request);
+    });
+  }
+
+  async highlights(
+    request: FeedHighlightsRequest,
+    observerId?: string,
+  ): PromiseResult<
+    PaginatedResult<PostFragment | QuoteFragment>,
+    CredentialsExpiredError | NotAuthenticatedError
+  > {
+    return requireAuthHeaders(this.authentication, async (headers) => {
+      return buildPaginatedQueryResult(async (currRequest) => {
+        const result = await this.sdk.FeedHighlights(
+          {
+            request: currRequest,
+            observerId,
+            ...buildImageTransformsFromConfig(this.config.mediaTransforms),
+          },
+          headers,
+        );
+
+        return result.data.result;
+      }, request);
+    });
+  }
+
+  async forYou(
+    request: PublicationForYouRequest,
+    observerId?: string,
+  ): PromiseResult<
+    PaginatedResult<PostFragment | QuoteFragment>,
+    CredentialsExpiredError | NotAuthenticatedError
+  > {
+    return requireAuthHeaders(this.authentication, async (headers) => {
+      return buildPaginatedQueryResult(async (currRequest) => {
+        const result = await this.sdk.ForYou(
+          {
+            request: currRequest,
+            observerId,
+            ...buildImageTransformsFromConfig(this.config.mediaTransforms),
+          },
+          headers,
+        );
+
+        return result.data.result;
+      }, request);
+    });
+  }
+}