# Resource Manager Changelog

## cl.resourceManager.1 Name Change of Multi-Project APIs in API Version 9

The Resource Manager module can return error codes and error information for APIs in API version 9 and later. Some multi-project APIs in API version 9 need to be adapted. The following changes are made in API version 9:

Some multi-project APIs of the Resource Manager are replaced with new APIs, but the parameters remain unchanged.

**Change Impact**

For applications developed based on earlier versions, relevant JavaScript multi-project APIs need to be replaced with new APIs.

**Key API/Component Changes**

| **Original API**                           | **New API**|
| ----------------                         | ------------ |
| getString(resource: Resource, <br>callback: AsyncCallback\<string>): void;   | getStringValue(resource: Resource, <br>callback: AsyncCallback\<string>): void;       |
| getString(resource: Resource): Promise\<string>;   | getStringValue(resource: Resource): Promise\<string>;       |
| getStringArray(resource: Resource, <br>callback: AsyncCallback\<Array\<string>>): void;    | getStringArrayValue(resource: Resource, <br>callback: AsyncCallback\<Array\<string>>): void;       |
| getStringArray(resource: Resource): Promise\<Array\<string>>;    | getStringArrayValue(resource: Resource): Promise\<Array\<string>>;       |
| getMedia(resource: Resource, <br>callback: AsyncCallback\<Uint8Array>): void;    | getMediaContent(resource: Resource, <br>callback: AsyncCallback\<Uint8Array>): void;       |
| getMedia(resource: Resource): Promise\<Uint8Array>;   | getMediaContent(resource: Resource): Promise\<Uint8Array>;       |
| getMediaBase64(resource: Resource, <br>callback: AsyncCallback\<string>): void;   | getMediaContentBase64(resource: Resource, <br>callback: AsyncCallback\<string>): void;       |
| getMediaBase64(resource: Resource): Promise\<string>;  | getMediaContentBase64(resource: Resource): Promise\<string>;       |
| getPluralString(resource: Resource, num: number, <br>callback: AsyncCallback<string>): void;   | getPluralStringValue(resource: Resource, num: number, <br>callback: AsyncCallback\<string>): void;       |
| getPluralString(resource: Resource, num: number): Promise\<string>;   | getPluralStringValue(resource: Resource, num: number): Promise\<string>;       |

**Adaptation Guide**

The following describes how to change **getMedia** to **getMediaContent** in callback mode. The promise mode is similar. You only need to change the function name, add the error code and error information, and keep other information unchanged. Example:

- Before the change: **getMedia(resource: Resource, callback: AsyncCallback<Uint8Array>): void;**
```ts
let resource = {
    bundleName: "com.example.myapplication",
    moduleName: "entry",
    id: $r('app.media.test').id
};
this.context.resourceManager.getMedia(resource, (error, value) => {
    if (error != null) {
      console.log("error is " + error);
    } else {
      let media = value;
    }
});
```

- After the change: **getMediaContent(resource: Resource, callback: AsyncCallback<Uint8Array>): void;**
```ts
let resource = {
    bundleName: "com.example.myapplication",
    moduleName: "entry",
    id: $r('app.media.test').id
};
try {
  this.context.resourceManager.getMediaContent(resource, (error, value) => {
      if (error != null) {
        console.log("error is " + error);
      } else {
        let media = value;
      }
  });
} catch (error) {
  console.error(`callback getMediaContent failed, error code: ${error.code}, message: ${error.message}.`)
}
```