Alova Instance

createAlova()

Create an Alova instance.

• Type

function createAlova(options?: AlovaOptions): Alova;

• Parameter

1. config: Configuration parameters

Parameter name	Type	Description
requestAdapter	object	Request adapter, required, View details
id	string | number	Alova instance id, optional, View details
baseURL	string	Base path, optional, default is empty, View details
statesHook	object	State management hook, optional, see details
timeout	number	Timeout, default is no timeout, see details
cacheFor	object	Local cache configuration, default GET has 5000ms cache, see details
l1Cache	object	Level1 cache adapter see details
l2Cache	object	Level2 cache adapter, see details
beforeRequest	function	Before request hook, see details
responded	object | function	Request response hook, see details
shareRequest	boolean	Share request, see details
cacheLogger	boolean | null | function	Cache log, see details
snapshots	number	method The number of snapshots is limited, the default is 1000, see details

• Return

Alova instance

• Example

import { createAlova } from 'alova';
import VueHook from 'alova/vue';
import adapterFetch from 'alova/fetch';

const alova = createAlova({
  baseURL: 'https://example.com',
  statesHook: VueHook,
  requestAdapter: adapterFetch(),
  timeout: 3000
  // ...
});

alova.id

alova instance id, used to distinguish different alova instances, can be used to accurately match the method instance of the specified alova in the method matcher.

• Type: string

alova.options

When creating an alova instance through createAlova, the object after the default configuration is merged with the passed in configuration object.

• Type

interface AlovaOptions {
  statesHook: StatesHook;
  requestAdapter: AlovaRequestAdapter;
  baseURL?: string;
  timeout?: number;
  cacheFor?: GlobalcacheForConfig;
  l1Cache?: AlovaStorageAdapter;
  l2Cache?: AlovaStorageAdapter;
  beforeRequest?: Function;
  responded?: Function | ResponsedHandlerRecord;
  shareRequest?: boolean;
  cacheLogger?: boolean | null | Function;
  snapshots?: number;
}

alova.l1Cache

The level1 cache adapter corresponding to the alova instance, the default is memory cache.

• Type

interface AlovaStorageAdapter {
  get(key: string): any;
  set(key: string, value: any): void;
  remove(key: string): void;
  clear(): void;
}

alova.l2Cache

The level2 cache adapter corresponding to the alova instance. The default value is localStorage in the client, and there is no adapter on the server by default.

• Type

interface AlovaStorageAdapter {
  get(key: string): any;
  set(key: string, value: any): void;
  remove(key: string): void;
  clear(): void;
}

alova.snapshots

The method snapshot storage of the current instance.

• Type ts class MethodSnapshotContainer<AG extends AlovaGenerics> { records: Record<string, Set<Method<AG>>>; capacity: number; occupy: number; save(methodInstance: Method<AG>): void; match<M extends boolean = true>( matcher: MethodFilter<AG>, matchAll?: M ): M extends true ? Method<AG>[] : Method<AG> | undefined; } ## al ova.Get() creates a method instance for a GET request.

• Type

interface Alova {
  Get(url: string, config?: AlovaMethodCreateConfig): Method;
}

• Parameter

1. url: request address
2. config: configuration parameters

Parameter name	Type	Description
headers	object	Request header, see details
params	object	Request parameters, see details
name	string	Method object name. In updateState, invalidateCache, setCache, and fetch function, you can get the corresponding method instance by name or wildcard
timeout	number	Request timeout, see details
cacheFor	cacheForConfig	Response cache time, see details
hitSource	string	Hit the source method instance. When the source method instance request succeeds, the cache of the current method instance will be invalidated. View details
transform	function	Transform response data. View details
shareRequest	boolean	Request-level shared request switch. View details
meta	any	method metadata. View details

In addition to the configurable parameters above, other parameters supported by the request adapter are also supported.

• Return

method instance

• Example

const getUsers = alovaInstance.Get('/users', {
  params: {
    id: 1
  }
  // ...
});

alova.Post()

Create a method instance for a POST request.

• Type

interface Alova {
  Post(
    url: string,
    data?: object | FormData | string | null,
    config?: AlovaMethodCreateConfig
  ): Method;
}

• Parameter

1. url: request address

2. data: request body

3. config: configuration parameters, parameter type is the same as alova.Get

• Return

method instance

• Example

const postUsers = alovaInstance.Post(
  '/createUser',
  {
    name: 'alova',
    age: 18,
    gender: 'male'
  },
  {
    // Configuration parameters...
  }
);

alova.Delete()

Create a method instance for a DELETE request.

• Type

interface Alova {
  Delete(
    url: string,
    data?: object | FormData | string | null,
    config?: AlovaMethodCreateConfig
  ): Method;
}

• Parameter

1. url: request address

2. data: request body

3. config: configuration parameters, parameter type is the same as alova.Get

• Return

method instance

• Example

const deleteUsers = alovaInstance.Delete(
  '/deleteUser',
  {
    id: 1
  },
  {
    // Configuration parameters...
  }
);

alova.Put()

Create a method instance for a PUT request.

• Type

interface Alova {
  Put(
    url: string,
    data?: object | FormData | string | null,
    config?: AlovaMethodCreateConfig
  ): Method;
}

• Parameter

1. url: request address

2. data: request body

3. config: configuration parameters, parameter type is the same as alova.Get

• Return

method instance

• Example

const putUsers = alovaInstance.Put(
  '/updateUser',
  {
    id: 1,
    name: 'alova'
  },
  {
    // Configuration parameters...
  }
);

alova.Head()

Create a method instance for HEAD request.

• Type

interface Alova {
  Head(url: string, config?: AlovaMethodCreateConfig): Method;
}

• Parameter

1. url: request address
2. config: configuration parameters, parameter type is the same as alova.Get

• Return

method instance

alova.Patch()

Create a method instance for the PATCH request.

• Type

interface Alova {
  Patch(
    url: string,
    data?: object | FormData | string | null,
    config?: AlovaMethodCreateConfig
  ): Method;
}

• Parameter

1. url: request address

2. data: request body

3. config: configuration parameters, parameter type is the same as alova.Get

• Return

method instance

alova.Options()

Create a method instance for OPTIONS request.

• Type

interface Alova {
  Options(url: string, config?: AlovaMethodCreateConfig): Method;
}

• Parameter

1. url: request address
2. config: configuration parameters, parameter type is the same as alova.Get

• Return

method instance