Esempio: condividere le credenziali su più siti web e app per Android
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Per configurare la condivisione delle credenziali su più siti web e più app per Android, devi:
Specifica un dominio principale: scegli un URL come punto di riferimento principale per i link.
Crea file assetlinks.json:
Dominio principale: crea un file assetlinks.json nel dominio principale che elenchi tutti i domini che condividono le credenziali.
Altri domini: crea un file assetlinks.json in ciascuno degli altri domini, ognuno dei quali rimanda al dominio principale.
Configura il collegamento degli asset digitali nel file manifest di ogni app: configura ogni app per il collegamento al file assetlinks.json nel dominio principale.
Nell'esempio seguente, abbiamo indicato example.com come dominio principale e tutti gli altri domini elencati condividono le credenziali con example.com e tra se stessi.
Ospita il file JSON Digital Asset Links nella corrispondente posizione well-known sul dominio principale, in questo caso:https://example.com/.well-known/assetlinks.json.
Crea un altro file assetlinks.json con i seguenti contenuti:
Configura il collegamento degli asset digitali nel file manifest dichiarando l'associazione nell'app per Android. Aggiungi un oggetto che specifichi i file assetlinks.json da caricare. In questo caso:
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Mancano le informazioni di cui ho bisogno","missingTheInformationINeed","thumb-down"],["Troppo complicato/troppi passaggi","tooComplicatedTooManySteps","thumb-down"],["Obsoleti","outOfDate","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Problema relativo a esempi/codice","samplesCodeIssue","thumb-down"],["Altra","otherDown","thumb-down"]],["Ultimo aggiornamento 2025-07-25 UTC."],[],[],null,["# Example: Share credentials across multiple websites and multiple Android apps\n\nTo set up credential sharing across multiple websites and multiple Android apps\nyou must:\n\n- **Designate a primary domain**: Choose one URL as the primary reference point for links.\n- **Create `assetlinks.json` files** :\n - **Primary domain** : Create an `assetlinks.json` file on your primary domain that lists all domains sharing credentials.\n - **Other domains** : Create an `assetlinks.json` file on each of the other domains, each linking back to the primary domain.\n- **Configure digital asset linking in each App's manifest** : Set up each app to link back to the `assetlinks.json` file in the primary domain.\n\n| **Important:** While Google treats credential sharing relationships as transitive, individual [Digital Asset Links are\n| not](https://developers.google.com/digital-asset-links/reference/rpc/google.digitalassetlinks.v1).\n\nIn the following example, we designated\n[example.com](https://example.com/) as the primary domain, and all other\nlisted domains share credentials with\n[example.com](https://example.com/) and across themselves.\n\n- [example.com](https://example.com/) (primary domain)\n- [example.org](https://example.jp/)\n- [example.net](https://example.de/)\n- [myownpersonaldomain.com](http://myownpersonaldomain.com)\n\nThe two apps with the following package names also share credentials with all\nthe websites and between them:\n\n- `com.example.android.myapplication`\n- `com.example.appname`\n\nBefore setting up credential sharing you must [complete the prerequisites](/identity/credential-sharing/set-up#prerequisites).\n\nTo declare credential sharing across these websites and Android apps:\n\n1. Create an `assetlinks.json` file with the following content:\n\n [\n {\n \"relation\": [\"delegate_permission/common.get_login_creds\"],\n \"target\": {\n \"namespace\": \"web\",\n \"site\": \"https://example.com\"\n }\n },\n {\n \"relation\": [\"delegate_permission/common.get_login_creds\"],\n \"target\": {\n \"namespace\": \"web\",\n \"site\": \"https://example.org\"\n }\n },\n {\n \"relation\": [\"delegate_permission/common.get_login_creds\"],\n \"target\": {\n \"namespace\": \"web\",\n \"site\": \"https://example.net\"\n }\n },\n {\n \"relation\": [\"delegate_permission/common.get_login_creds\"],\n \"target\": {\n \"namespace\": \"web\",\n \"site\": \"https://myownpersonaldomain.com\"\n }\n },\n {\n \"relation\" : [\n \"delegate_permission/common.get_login_creds\"\n ],\n \"target\" : {\n \"namespace\" : \"android_app\",\n \"package_name\" : \"com.example.android.myapplication\",\n \"sha256_cert_fingerprints\" : [ \"AA:BB:CC:DD:EE:FF:11:22:33:44:55:66:77:88:99:00:AA:BB:CC:DD:EE:FF:11:22:33:44:55:66:77:88:99:00\"\n ]\n }\n },\n {\n \"relation\" : [\n \"delegate_permission/common.get_login_creds\"\n ],\n \"target\" : {\n \"namespace\" : \"android_app\",\n \"package_name\" : \"com.example.appname\",\n \"sha256_cert_fingerprints\" : [ \"00:11:22:33:44:55:66:77:88:99:AA:BB:CC:DD:EE:FF:00:11:22:33:44:55:66:77:88:99:AA:BB:CC:DD:EE:FF\"\n ]\n }\n }\n ]\n\n2. Host the Digital Asset Links JSON file in the corresponding well-known\n location on the primary domain, in this case:\n `https://example.com/.well-known/assetlinks.json`.\n\n3. Create another `assetlinks.json` file with the following content:\n\n [\n {\n \"relation\": [\"delegate_permission/common.get_login_creds\"],\n \"target\": {\n \"namespace\": \"web\",\n \"site\": \"example.com\"\n }\n }\n ]\n\n4. Host copies of this Digital Asset Links JSON file at the following location\n on the other domains, in this case:\n\n - `example.org/.well-known/assetlinks.json`\n - `example.net/.well-known/assetlinks.json`\n - `mypersonaldomain.com/.well-known/assetlinks.json`\n5. Add the following line to both Android Apps manifests files under\n `\u003capplication\u003e`:\n\n \u003cmeta-data android:name=\"asset_statements\" android:resource=\"@string/asset_statements\"/\u003e\n\n6. Configure digital asset linking in the manifest by declaring the association\n in the Android app. Add an object that specifies the `assetlinks.json` files\n to load. In this case:\n\n \u003cstring name=\"asset_statements\" translatable=\"false\"\u003e\n [{\n \\\"include\\\": \\\"https://example.com/.well-known/assetlinks.json\\\"\n }]\n \u003c/string\u003e\n\nAfter following these steps, you have successfully set up seamless credential\nsharing across multiple websites and Android apps."]]
