feat: add Payload SDK package (#9463)

Adds Payload SDK package, which can be used to query Payload REST API in
a fully type safe way. Has support for all necessary operations,
including auth, type safe `select`, `populate`, `joins` properties and
simplified file uploading.

Its interface is _very_ similar to the Local API, can't even notice the
difference:
Example:
```ts
import { PayloadSDK } from '@payloadcms/sdk'
import type { Config } from './payload-types'

// Pass your config from generated types as generic
const sdk = new PayloadSDK<Config>({
  baseURL: 'https://example.com/api',
})

// Find operation
const posts = await sdk.find({
  collection: 'posts',
  draft: true,
  limit: 10,
  locale: 'en',
  page: 1,
  where: { _status: { equals: 'published' } },
})

// Find by ID operation
const posts = await sdk.findByID({
  id,
  collection: 'posts',
  draft: true,
  locale: 'en',
})

// Auth login operation
const result = await sdk.login({
  collection: 'users',
  data: {
    email: 'dev@payloadcms.com',
    password: '12345',
  },
})

// Create operation
const result = await sdk.create({
  collection: 'posts',
  data: { text: 'text' },
})

// Create operation with a file
// `file` can be either a Blob | File object or a string URL
const result = await sdk.create({ collection: 'media', file, data: {} })

// Count operation
const result = await sdk.count({ collection: 'posts', where: { id: { equals: post.id } } })

// Update (by ID) operation
const result = await sdk.update({
  collection: 'posts',
  id: post.id,
  data: {
    text: 'updated-text',
  },
})

// Update (bulk) operation
const result = await sdk.update({
  collection: 'posts',
  where: {
    id: {
      equals: post.id,
    },
  },
  data: { text: 'updated-text-bulk' },
})

// Delete (by ID) operation
const result = await sdk.delete({ id: post.id, collection: 'posts' })

// Delete (bulk) operation
const result = await sdk.delete({ where: { id: { equals: post.id } }, collection: 'posts' })

// Find Global operation
const result = await sdk.findGlobal({ slug: 'global' })

// Update Global operation
const result = await sdk.updateGlobal({ slug: 'global', data: { text: 'some-updated-global' } })

// Auth Login operation
const result = await sdk.login({
  collection: 'users',
  data: { email: 'dev@payloadcms.com', password: '123456' },
})

// Auth Me operation
const result = await sdk.me(
  { collection: 'users' },
  {
    headers: {
      Authorization: `JWT  ${user.token}`,
    },
  },
)

// Auth Refresh Token operation
const result = await sdk.refreshToken(
  { collection: 'users' },
  { headers: { Authorization: `JWT ${user.token}` } },
)

// Auth Forgot Password operation
const result = await sdk.forgotPassword({
  collection: 'users',
  data: { email: user.email },
})

// Auth Reset Password operation
const result = await sdk.resetPassword({
  collection: 'users',
  data: { password: '1234567', token: resetPasswordToken },
})

// Find Versions operation
const result = await sdk.findVersions({
  collection: 'posts',
  where: { parent: { equals: post.id } },
})

// Find Version by ID operation
const result = await sdk.findVersionByID({ collection: 'posts', id: version.id })

// Restore Version operation
const result = await sdk.restoreVersion({
  collection: 'posts',
  id,
})

// Find Global Versions operation
const result = await sdk.findGlobalVersions({
  slug: 'global',
})

// Find Global Version by ID operation
const result = await sdk.findGlobalVersionByID({ id: version.id, slug: 'global' })

// Restore Global Version operation
const result = await sdk.restoreGlobalVersion({
  slug: 'global',
  id
})
```



Every operation has optional 3rd parameter which is used to add
additional data to the RequestInit object (like headers):
```ts
await sdk.me({
  collection: "users"
}, {
  // RequestInit object
  headers: {
    Authorization: `JWT ${token}`
  }
})
``` 

To query custom endpoints, you can use the `request` method, which is
used internally for all other methods:
```ts
await sdk.request({
  method: 'POST',
  path: '/send-data',
  json: {
    id: 1,
  },
})
```

Custom `fetch` implementation and `baseInit` for shared `RequestInit`
properties:
```ts
const sdk = new PayloadSDK<Config>({
  baseInit: { credentials: 'include' },
  baseURL: 'https://example.com/api',
  fetch: async (url, init) => {
    console.log('before req')
    const response = await fetch(url, init)
    console.log('after req')
    return response
  },
})
```

test/sdk/payload-types.ts

@@ -0,0 +1,291 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+ * This file was automatically generated by Payload.
+ * DO NOT MODIFY IT BY HAND. Instead, modify your source Payload config,
+ * and re-run `payload generate:types` to regenerate this file.
+ */
+
+export interface Config {
+  auth: {
+    users: UserAuthOperations;
+  };
+  collections: {
+    users: User;
+    posts: Post;
+    media: Media;
+    'payload-locked-documents': PayloadLockedDocument;
+    'payload-preferences': PayloadPreference;
+    'payload-migrations': PayloadMigration;
+  };
+  collectionsJoins: {};
+  collectionsSelect: {
+    users: UsersSelect<false> | UsersSelect<true>;
+    posts: PostsSelect<false> | PostsSelect<true>;
+    media: MediaSelect<false> | MediaSelect<true>;
+    'payload-locked-documents': PayloadLockedDocumentsSelect<false> | PayloadLockedDocumentsSelect<true>;
+    'payload-preferences': PayloadPreferencesSelect<false> | PayloadPreferencesSelect<true>;
+    'payload-migrations': PayloadMigrationsSelect<false> | PayloadMigrationsSelect<true>;
+  };
+  db: {
+    defaultIDType: string;
+  };
+  globals: {
+    global: Global;
+  };
+  globalsSelect: {
+    global: GlobalSelect<false> | GlobalSelect<true>;
+  };
+  locale: 'en' | 'es' | 'de';
+  user: User & {
+    collection: 'users';
+  };
+  jobs: {
+    tasks: unknown;
+    workflows: unknown;
+  };
+}
+export interface UserAuthOperations {
+  forgotPassword: {
+    email: string;
+    password: string;
+  };
+  login: {
+    email: string;
+    password: string;
+  };
+  registerFirstUser: {
+    email: string;
+    password: string;
+  };
+  unlock: {
+    email: string;
+    password: string;
+  };
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "users".
+ */
+export interface User {
+  id: string;
+  updatedAt: string;
+  createdAt: string;
+  email: string;
+  resetPasswordToken?: string | null;
+  resetPasswordExpiration?: string | null;
+  salt?: string | null;
+  hash?: string | null;
+  loginAttempts?: number | null;
+  lockUntil?: string | null;
+  password?: string | null;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "posts".
+ */
+export interface Post {
+  id: string;
+  text?: string | null;
+  number?: number | null;
+  number2?: number | null;
+  group?: {
+    text?: string | null;
+    number?: number | null;
+  };
+  updatedAt: string;
+  createdAt: string;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "media".
+ */
+export interface Media {
+  id: string;
+  updatedAt: string;
+  createdAt: string;
+  url?: string | null;
+  thumbnailURL?: string | null;
+  filename?: string | null;
+  mimeType?: string | null;
+  filesize?: number | null;
+  width?: number | null;
+  height?: number | null;
+  focalX?: number | null;
+  focalY?: number | null;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "payload-locked-documents".
+ */
+export interface PayloadLockedDocument {
+  id: string;
+  document?:
+    | ({
+        relationTo: 'users';
+        value: string | User;
+      } | null)
+    | ({
+        relationTo: 'posts';
+        value: string | Post;
+      } | null)
+    | ({
+        relationTo: 'media';
+        value: string | Media;
+      } | null);
+  globalSlug?: string | null;
+  user: {
+    relationTo: 'users';
+    value: string | User;
+  };
+  updatedAt: string;
+  createdAt: string;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "payload-preferences".
+ */
+export interface PayloadPreference {
+  id: string;
+  user: {
+    relationTo: 'users';
+    value: string | User;
+  };
+  key?: string | null;
+  value?:
+    | {
+        [k: string]: unknown;
+      }
+    | unknown[]
+    | string
+    | number
+    | boolean
+    | null;
+  updatedAt: string;
+  createdAt: string;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "payload-migrations".
+ */
+export interface PayloadMigration {
+  id: string;
+  name?: string | null;
+  batch?: number | null;
+  updatedAt: string;
+  createdAt: string;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "users_select".
+ */
+export interface UsersSelect<T extends boolean = true> {
+  updatedAt?: T;
+  createdAt?: T;
+  email?: T;
+  resetPasswordToken?: T;
+  resetPasswordExpiration?: T;
+  salt?: T;
+  hash?: T;
+  loginAttempts?: T;
+  lockUntil?: T;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "posts_select".
+ */
+export interface PostsSelect<T extends boolean = true> {
+  text?: T;
+  number?: T;
+  number2?: T;
+  group?:
+    | T
+    | {
+        text?: T;
+        number?: T;
+      };
+  updatedAt?: T;
+  createdAt?: T;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "media_select".
+ */
+export interface MediaSelect<T extends boolean = true> {
+  updatedAt?: T;
+  createdAt?: T;
+  url?: T;
+  thumbnailURL?: T;
+  filename?: T;
+  mimeType?: T;
+  filesize?: T;
+  width?: T;
+  height?: T;
+  focalX?: T;
+  focalY?: T;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "payload-locked-documents_select".
+ */
+export interface PayloadLockedDocumentsSelect<T extends boolean = true> {
+  document?: T;
+  globalSlug?: T;
+  user?: T;
+  updatedAt?: T;
+  createdAt?: T;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "payload-preferences_select".
+ */
+export interface PayloadPreferencesSelect<T extends boolean = true> {
+  user?: T;
+  key?: T;
+  value?: T;
+  updatedAt?: T;
+  createdAt?: T;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "payload-migrations_select".
+ */
+export interface PayloadMigrationsSelect<T extends boolean = true> {
+  name?: T;
+  batch?: T;
+  updatedAt?: T;
+  createdAt?: T;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "global".
+ */
+export interface Global {
+  id: string;
+  text?: string | null;
+  updatedAt?: string | null;
+  createdAt?: string | null;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "global_select".
+ */
+export interface GlobalSelect<T extends boolean = true> {
+  text?: T;
+  updatedAt?: T;
+  createdAt?: T;
+  globalType?: T;
+}
+/**
+ * This interface was referenced by `Config`'s JSON-Schema
+ * via the `definition` "auth".
+ */
+export interface Auth {
+  [k: string]: unknown;
+}
+
+
+declare module 'payload' {
+  // @ts-ignore 
+  export interface GeneratedTypes extends Config {}
+}