Types de propriétés
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Utilisez des types de propriétés.
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Pour obtenir une documentation détaillée incluant cet exemple de code, consultez les articles suivants :
Exemple de code
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
[[["Facile à comprendre","easyToUnderstand","thumb-up"],["J'ai pu résoudre mon problème","solvedMyProblem","thumb-up"],["Autre","otherUp","thumb-up"]],[["Difficile à comprendre","hardToUnderstand","thumb-down"],["Informations ou exemple de code incorrects","incorrectInformationOrSampleCode","thumb-down"],["Il n'y a pas l'information/les exemples dont j'ai besoin","missingTheInformationSamplesINeed","thumb-down"],["Problème de traduction","translationIssue","thumb-down"],["Autre","otherDown","thumb-down"]],[],[[["\u003cp\u003eThe provided code samples demonstrate how to define and create a "Task" entity in Datastore mode across various languages, including C#, Go, Java, Node.js, PHP, Python, and Ruby.\u003c/p\u003e\n"],["\u003cp\u003eEach language example shows setting properties such as "category," "created," "done," "priority," "percent_complete," and "description" for the "Task" entity.\u003c/p\u003e\n"],["\u003cp\u003eThe examples include instructions on how to access language-specific documentation for the Datastore mode API and client libraries.\u003c/p\u003e\n"],["\u003cp\u003eThe examples also mention setting up Application Default Credentials for authenticating to Datastore mode.\u003c/p\u003e\n"],["\u003cp\u003eA common practice across all code samples is to exclude the \u003ccode\u003edescription\u003c/code\u003e field from indexing, improving query efficiency by ensuring the data is not used in indexed queries.\u003c/p\u003e\n"]]],[],null,["# Property types\n\nUse property types.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Entities, Properties, and Keys](/datastore/docs/concepts/entities)\n- [Indexes](/datastore/docs/concepts/indexes)\n\nCode sample\n-----------\n\n### C#\n\n\nTo learn how to install and use the client library for Datastore mode, see\n[Datastore mode client libraries](/datastore/docs/reference/libraries).\n\n\nFor more information, see the\n[Datastore mode C# API\nreference documentation](https://cloud.google.com/dotnet/docs/reference/Google.Cloud.Datastore.V1/latest).\n\n\nTo authenticate to Datastore mode, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n Entity task = new Entity()\n {\n Key = _db.CreateKeyFactory(\"Task\").CreateKey(\"sampleTask\"),\n [\"category\"] = \"Personal\",\n [\"created\"] = new DateTime(1999, 01, 01, 0, 0, 0, DateTimeKind.Utc),\n [\"done\"] = false,\n [\"priority\"] = 4,\n [\"percent_complete\"] = 10.0,\n [\"description\"] = new Value()\n {\n StringValue = \"Learn Cloud Datastore\",\n ExcludeFromIndexes = true\n },\n };\n\n### Go\n\n\nTo learn how to install and use the client library for Datastore mode, see\n[Datastore mode client libraries](/datastore/docs/reference/libraries).\n\n\nFor more information, see the\n[Datastore mode Go API\nreference documentation](https://cloud.google.com/go/docs/reference/cloud.google.com/go/datastore/latest).\n\n\nTo authenticate to Datastore mode, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n type Task struct {\n \tCategory string\n \tDone bool\n \tPriority int\n \tDescription string `datastore:\",noindex\"`\n \tPercentComplete float64\n \tCreated time.Time\n }\n task := &Task{\n \tCategory: \"Personal\",\n \tDone: false,\n \tPriority: 4,\n \tDescription: \"Learn Cloud Datastore\",\n \tPercentComplete: 10.0,\n \tCreated: time.Now(),\n }\n\n### Java\n\n\nTo learn how to install and use the client library for Datastore mode, see\n[Datastore mode client libraries](/datastore/docs/reference/libraries).\n\n\nFor more information, see the\n[Datastore mode Java API\nreference documentation](https://cloud.google.com/java/docs/reference/google-cloud-datastore/latest/history).\n\n\nTo authenticate to Datastore mode, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n Entity task =\n Entity.newBuilder(taskKey)\n .set(\"category\", \"Personal\")\n .set(\"created\", Timestamp.now())\n .set(\"done\", false)\n .set(\"priority\", 4)\n .set(\"percent_complete\", 10.0)\n .set(\n \"description\",\n StringValue.newBuilder(\"Learn Cloud Datastore\").setExcludeFromIndexes(true).build())\n .build();\n\n### Node.js\n\n\nTo learn how to install and use the client library for Datastore mode, see\n[Datastore mode client libraries](/datastore/docs/reference/libraries).\n\n\nFor more information, see the\n[Datastore mode Node.js API\nreference documentation](https://cloud.google.com/nodejs/docs/reference/datastore/latest).\n\n\nTo authenticate to Datastore mode, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n const task = [\n {\n name: 'category',\n value: 'Personal',\n },\n {\n name: 'created',\n value: new Date(),\n },\n {\n name: 'done',\n value: false,\n },\n {\n name: 'priority',\n value: 4,\n },\n {\n name: 'percent_complete',\n value: 10.0,\n },\n {\n name: 'description',\n value: 'Learn Cloud Datastore',\n excludeFromIndexes: true,\n },\n ];\n\n### PHP\n\n\nTo learn how to install and use the client library for Datastore mode, see\n[Datastore mode client libraries](/datastore/docs/reference/libraries).\n\n\nFor more information, see the\n[Datastore mode PHP API\nreference documentation](https://googleapis.github.io/google-cloud-php/#/docs/cloud-datastore/latest).\n\n\nTo authenticate to Datastore mode, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n $task = $datastore-\u003eentity(\n $key,\n [\n 'category' =\u003e 'Personal',\n 'created' =\u003e new DateTime(),\n 'done' =\u003e false,\n 'priority' =\u003e 4,\n 'percent_complete' =\u003e 10.0,\n 'description' =\u003e 'Learn Cloud Datastore'\n ],\n ['excludeFromIndexes' =\u003e ['description']]\n );\n\n### Python\n\n\nTo learn how to install and use the client library for Datastore mode, see\n[Datastore mode client libraries](/datastore/docs/reference/libraries).\n\n\nFor more information, see the\n[Datastore mode Python API\nreference documentation](https://cloud.google.com/python/docs/reference/datastore/latest).\n\n\nTo authenticate to Datastore mode, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n from google.cloud import https://cloud.google.com/python/docs/reference/datastore/latest/\n\n # For help authenticating your client, visit\n # https://cloud.google.com/docs/authentication/getting-started\n client = https://cloud.google.com/python/docs/reference/datastore/latest/.https://cloud.google.com/python/docs/reference/datastore/latest/google.cloud.datastore.client.Client.html()\n\n import datetime\n\n key = client.https://cloud.google.com/python/docs/reference/datastore/latest/google.cloud.datastore.client.Client.html#google_cloud_datastore_client_Client_key(\"Task\")\n task = https://cloud.google.com/python/docs/reference/datastore/latest/.https://cloud.google.com/python/docs/reference/datastore/latest/google.cloud.datastore.entity.Entity.html(key, exclude_from_indexes=(\"description\",))\n task.update(\n {\n \"category\": \"Personal\",\n \"description\": \"Learn Cloud Datastore\",\n \"created\": datetime.datetime.now(tz=datetime.timezone.utc),\n \"done\": False,\n \"priority\": 4,\n \"percent_complete\": 10.5,\n }\n )\n client.https://cloud.google.com/python/docs/reference/datastore/latest/google.cloud.datastore.client.Client.html#google_cloud_datastore_client_Client_put(task)\n\n### Ruby\n\n\nTo learn how to install and use the client library for Datastore mode, see\n[Datastore mode client libraries](/datastore/docs/reference/libraries).\n\n\nFor more information, see the\n[Datastore mode Ruby API\nreference documentation](/ruby/docs/reference/google-cloud-datastore/latest).\n\n\nTo authenticate to Datastore mode, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n task = datastore.entity \"Task\" do |t|\n t[\"category\"] = \"Personal\"\n t[\"created\"] = Time.now\n t[\"done\"] = false\n t[\"priority\"] = 4\n t[\"percent_complete\"] = 10.0\n t[\"description\"] = \"Learn Cloud Datastore\"\n t.exclude_from_indexes! \"description\", true\n end\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=datastore)."]]