1# @ohos.app.ability.OpenLinkOptions (OpenLinkOptions)
2
3**OpenLinkOptions** can be used as an input parameter of [openLink()](js-apis-inner-application-uiAbilityContext.md#uiabilitycontextopenlink12) to indicate whether to enable only App Linking and pass in optional parameters in the form of key-value pairs.
4
5> **NOTE**
6>
7> - The initial APIs of this module are supported since API version 12. Newly added APIs will be marked with a superscript to indicate their earliest API version.
8>
9> - The APIs of this module can be used only in the stage model.
10
11## Modules to Import
12
13```ts
14import { OpenLinkOptions } from '@kit.AbilityKit';
15```
16
17## Properties
18
19**Atomic service API**: This API can be used in atomic services since API version 12.
20
21**System capability**: SystemCapability.Ability.AbilityRuntime.Core
22
23| Name| Type| Read Only| Optional| Description|
24| -------- | -------- | -------- | -------- | -------- |
25| appLinkingOnly | boolean | No| Yes| Whether the UIAbility must be started in App Linking mode.<br>- If this parameter is set to **true** and no UIAbility matches the URL in App Linking, the result is returned directly.<br>- If this parameter is set to **false** and no UIAbility matches the URL in App Linking, App Linking is degraded to Deep Link. The default value is **false**.<br>When the aa command is used to implicitly start an ability, you can set **--pb appLinkingOnly true** or **--pb appLinkingOnly false** to start the ability in App Linking mode.|
26| parameters | Record\<string, Object> | No| Yes| List of parameters in Want.<br>**NOTE**: For details about the usage rules, see **parameters** in [want](./js-apis-app-ability-want.md).|
27
28**Example**
29
30  ```ts
31  import { common, OpenLinkOptions, wantConstant } from '@kit.AbilityKit';
32  import { hilog } from '@kit.PerformanceAnalysisKit';
33  import { BusinessError } from '@kit.BasicServicesKit';
34
35  const DOMAIN = 0xeeee;
36  const TAG: string = '[openLinkDemo]';
37
38  @Entry
39  @Component
40  struct Index {
41    @State message: string = 'I am caller';
42
43    build() {
44      Row() {
45        Column() {
46          Text(this.message)
47            .fontSize(50)
48            .fontWeight(FontWeight.Bold)
49          Button('start browser', { type: ButtonType.Capsule, stateEffect: true })
50            .width('87%')
51            .height('5%')
52            .margin({ bottom: '12vp' })
53            .onClick(() => {
54              let context = getContext(this) as common.UIAbilityContext;
55              let link: string = 'https://www.example.com';
56              let openLinkOptions: OpenLinkOptions = {
57                appLinkingOnly: true,
58                parameters: {
59                  [wantConstant.Params.CONTENT_TITLE_KEY]: 'contentTitle',
60                  keyString: 'str',
61                  keyNumber: 200,
62                  keyBool: false,
63                  keyObj: {
64                    keyObjKey: 'objValue',
65                  }
66                }
67              };
68              try {
69                context.openLink(
70                  link,
71                  openLinkOptions,
72                  (err, result) => {
73                    hilog.error(DOMAIN, TAG, `openLink callback error.code: ${JSON.stringify(err)}`);
74                    hilog.info(DOMAIN, TAG, `openLink callback result: ${JSON.stringify(result.resultCode)}`);
75                    hilog.info(DOMAIN, TAG, `openLink callback result data: ${JSON.stringify(result.want)}`);
76                  }
77                ).then(() => {
78                  hilog.info(DOMAIN, TAG, `open link success.`);
79                }).catch((err: BusinessError) => {
80                  hilog.error(DOMAIN, TAG, `open link failed, errCode: ${JSON.stringify(err.code)}`);
81                });
82              }
83              catch (e) {
84                hilog.error(DOMAIN, TAG, `open link failed, errCode: ${JSON.stringify(e.code)}`);
85              }
86            })
87        }
88        .width('100%')
89      }
90      .height('100%')
91    }
92  }
93  ```
94