aem graphql sample queries. In the backend, AEM translates the GraphQL queries to SQL2 queries. aem graphql sample queries

 
In the backend, AEM translates the GraphQL queries to SQL2 queriesaem graphql sample queries  Start the tutorial chapter on Create Content Fragment Models

Solved: Hi Team, AEM : 6. Understand some practical. To accelerate the tutorial a starter React JS app is provided. Clone and run the sample client application. Client applications can then. Learn how to create a SPA using the React JS framework with AEM's SPA Editor. cors. You switched accounts on another tab or window. Prerequisites. This sample application retrieves the content from AEM by invoking the persisted GraphQL queries and renders it in an immersive experience. AEM creates these based on your. The GraphQL API in AEM allows you to expose Content Fragment data to downstream applications. In this tutorial, we’ll use the GraphiQL IDE to start experimenting with queries. Start the tutorial chapter on Create Content Fragment Models. The AEM GraphQL API lets you perform (complex) queries on your Content Fragments; with each query being according to a specific model type. A primary use case for The Adobe Experience Manager (AEM) GraphQL API for Content Fragment Delivery is to accept remote queries from third-party applications or services. Sign In. All depends upon how you develop your. Developer. The AEM Headless quick setup gets you hands-on with AEM Headless using content from the WKND Site sample project, and a sample React App (a SPA) that consumes the content over AEM Headless GraphQL APIs. This session dedicated to the query builder is useful for an overview and use of the tool. GraphQL is an open-source data query and manipulation and language for APIs. and the resolvers would go: and the response might look like: We defined: 3 params:Best Practices for Developers - Getting Started. Clone and run the sample client application. The endpoint is the path used to access GraphQL for AEM. json where appname reflects the name of your application. Developer. AEM Headless is a CMS solution from Experience Manager that allows structured content (Content Fragments) in AEM to be consumed by any app over HTTP using GraphQL. Using this path you (or your app) can: receive the responses (to your GraphQL queries). View the source code on GitHub. In this tutorial, you learn how to integrate the requests for persisted queries into the sample WKND GraphQL React app using the AEM Headless Client for JavaScript. Clone and run the sample client application. The AEM Headless SDK is available for various platforms: AEM Headless SDK for client-side browsers (JavaScript) AEM Headless SDK for server-side/Node. js itself does not require a server to run. To accelerate the tutorial a starter React JS app is provided. Clone and run the sample client application. 1. Explore AEM's GraphQL APIs using the built-in GrapiQL IDE. To support AEM GraphQL persisted queries (and Experience Fragments), add GET. This lets you use graphql syntax highlighting plugins and graphql pretty printers while editing examplequery. GraphQL Query optimization. org. The examples that follow demonstrate how to obtain and use the class objects in code. Congratulations! Congratulations, you created and executed several GraphQL queries! Next Steps. Create your first React Single Page Application (SPA) that is editable in Adobe Experience Manager AEM with the WKND SPA. The Lambda function uses graphql-java, a popular library for implementing GraphQL with java. The AEM Headless quick setup gets you hands-on with AEM Headless using content from the WKND Site sample project, and a sample React App (a SPA) that consumes the content over AEM Headless GraphQL APIs. An end-to-end tutorial illustrating how to build-out and expose content using AEM Headless. 5. In this chapter, a stubbed-out sample React app is implemented with the code required to interact with AEM’s GraphQL API, and display team and person data obtained from them. Now that you have learned how to access and query your headless content using the AEM GraphQL API you can now learn how to use the REST API to access and update the content of your Content Fragments. Build a React JS app using GraphQL in a pure headless scenario. To address this problem I have implemented a custom solution. Overview; 1 - Defining Content Fragment Models; 2 - Authoring Content Fragments; 3 - Explore. An Experience Fragment: consists of a group of components together with a layout, can exist independently of an AEM page. Understanding how a query can be improved, whether through indexing or just refining the parameters, along with using AEM’s query performance tools can be crucial to good design. The examples assume the use of GraphQL queries that return image references using the _dynamicUrl field. GraphQL API requests must be authenticated using the following details: Stack API key; Environment; Delivery token of the concerned environment; You need to pass the stack API Key in the URL and the publishing environment as a query parameter. zip. cfg. The AEM GraphQL API is a customized version based on the standard GraphQL API specification, specially configured to allow you to perform (complex) queries on your Content Fragments. To help with this see: A sample Content Fragment structure. Next, we’ll use the AEM Headless SDK to retrieve Content Fragment data from AEM’s GraphQL APIs. Create Content Fragments based on the. ; Dive into the details of the AEM GraphQL API. ReindexingIn this tutorial, you learn how to integrate the requests for persisted queries into the sample WKND GraphQL React app using the AEM Headless Client for JavaScript. js initializes and exports the AEM Headless Client used to communicate with AEM; src/api/usePersistedQueries. The GraphQL API in AEM allows you to expose Content Fragment data to downstream applications. p. AEM as a Cloud Service lets you capitalize on the AEM applications in a cloud-native way, so that you can: Scale your DevOps efforts with Cloud Manager: CI/CD framework, autoscaling, API connectivity, flexible deployment modes, code quality gates, service delivery transparency, and guided updates. 1 - Modeling Basics; 2 - Advanced Modeling; 3 - Creating GraphQL Queries; 4 - Content Fragment Variations; 5 - GraphQL Endpoints; 6 - Author and Publish Architecture; 7 - GraphQL Persisted Queries; Basic Tutorial. Headless content delivery based on GraphQL can be fast, but might also cause performance bottlenecks in some cases. Start the tutorial chapter on Create Content. 1 Accepted Solution. AEM provides several tools and resources for creating workflow models, developing workflow steps, and for programmatically interacting with workflows. Resolver. This sample application retrieves the content from AEM by invoking the persisted GraphQL queries and renders it in an immersive experience. GraphQL query is an API for headless architecture to deliver content fragment data in the form of JSON. However if there are huge number of Content Fragments in the system for instance > 50000, please avoid using GraphQL queries as. This sample application retrieves the content from AEM by invoking the persisted GraphQL queries and renders it in an immersive experience. The GraphiQL tool also enables users to persist or save queries to be used by client applications in a production setting. This guide uses the AEM as a Cloud Service SDK. </p> <p. Due to the many advantages of GraphQL - exact data fetching, versionless API evolution, single API call data fetching, strongly type. Content Fragments are used in AEM to create and manage content for the SPA. Overview 1 - Create Content Fragment Models 2 - Author Content Fragments 3 - Explore the AEM GraphQL API 4 - Persisted GraphQL Queries 5 - Client Application Integration. This guide uses the AEM as a Cloud Service SDK. The queries shown in this video, are just a sample to give you an idea of some of the powerful things you can do with GraphQL. contributorList is an example of a query type within GraphQL. We’ll look at the benefits of GraphQL, the GraphQL tooling available in AEM, and simple and advanced GraphQL query creation. . In this chapter, you use the GraphiQL Explorer to define more advanced queries to gather data of the. We are trying to consume the persistent query created in AEM inside the Java backend code using the Apollo Graphql client. GraphQL Query Language is a powerful and flexible language used to retrieve data from a GraphQL API/ GrapQL server. Move to the app folder. Angular CLI Command To Create Angular App: ng new. In this chapter, a stubbed-out sample React app is implemented with the code required to interact with AEM’s GraphQL API, and display team and person data obtained from them. In this video you will: Learn how to enable GraphQL Persisted Queries. For GraphQL queries with AEM, there are a few extensions: If you require a single result: use the model name; for example, city; If you expect a list of results: add List to the model name; for example, cityList GraphQL for AEM - Summary of Extensions. This GraphQL query returns an image reference’s. Learn how to create GraphQL queries to return content from Adobe Experience Manager (AEM) and how to use the GraphiQL tool to quickly test, refine, and debug queries. This tutorial explores how AEM’s GraphQL APIs and headless capabilities can be used to power the experiences surfaced in an external app. Using this path you (or your app) can: access the GraphQL schema, send your GraphQL queries, receive the responses (to your GraphQL queries). all-2. AEM’s GraphQL APIs for Content Fragments. x version. AEM SDK; Video Series. Content fragments can be referenced from AEM pages, just as any other asset type. On an AEM instance with a high number of Content Fragments that share the same model, GraphQL list queries can become costly (in terms of resources). This guide uses the AEM as a Cloud Service SDK. The following tools should be installed locally: JDK 11; Node. We’ll look at the benefits of GraphQL, the GraphQL tooling available in AEM, and simple and advanced GraphQL query creation. To accelerate the tutorial a starter React JS app is provided. 24. The following tools should be installed locally: JDK 11;. In this chapter, a stubbed-out sample React app is implemented with the code required to interact with AEM’s GraphQL API, and display team and person data obtained from them. field and arguments are two important parts of a query. Yes, AEM provides OOTB Graphql API support for Content Fragments only. This Next. Available for use by all sites. Start the tutorial chapter on Create Content Fragment Models. Retail sample content, you can choose Foundation Components or use Core. This sample application retrieves the content from AEM by invoking the persisted GraphQL queries and renders it in an immersive experience. To get started with GraphQL queries, and how they work with AEM Content Fragments, it helps to see some practical examples. log (result); });Persisted Queries; Optimizing GraphQL Queries; Updating your Content Fragments for optimized GraphQL Filtering; Authentication for Remote AEM GraphQL Queries on Content Fragments; AEM GraphQL API with Content Fragments - Sample Content and Queries; Hybrid and SPA AEM Development. Persisted queries are queries that are stored on the Adobe Experience Manager (AEM) server. The implementation of the tagging framework in AEM allows management of tags and tag content using the JCR API . For example, a URL such as:GraphQL Queries - This allows the client to read and manipulate how the data should be received. For an overview of all the available components in your AEM instance, use the Components Console. AEM GraphQL nested AND and OR expression. Learn about the various data types used to build out the Content Fragment Model. Some content is managed in AEM and some in an external system. This guide uses the AEM as a Cloud Service SDK. For more details about exactly how GraphQL queries work, read Sashko Stubailo‘s post, “The Anatomy of a GraphQL Query. An end-to-end tutorial illustrating how to build-out and expose content using AEM Headless. In the above query, returns a union type that can be one of three options. AEM 6. It would be impossible to tell apart the different types from the client without the __typename field. This chart illustrates the general flow to use the Query Performance Tool to optimize queries. CORSPolicyImpl~appname-graphql. type=cq:Page. To get started with this advanced tutorial, follow these steps: Set up a development environment using AEM as a Cloud Service. In this tutorial, we’ll use the GraphiQL IDE to start experimenting with queries. # # Type queries into this side of the screen, and you will see intelligent. You signed in with another tab or window. Clone the adobe/aem-guides-wknd-graphql repository:The GraphiQL tool lets you test and debug your GraphQL queries by enabling you to:. Available for use by all sites. js v18;. The multi-line text field is a data type of Content Fragments that enables authors to create rich text content. The following tools should be installed locally: JDK 11;. Enable content fragment models & GraphQL persistent queries. schema. In the basic tutorial multi-step GraphQL tutorial, you used the GraphiQL Explorer to test and refine the GraphQL queries. AEM SDK; Video Series. Rich text with AEM Headless. This sample demonstrates the dialog diff technique of the Sling Resource Merger; including use of sling:orderBefore. AEM Gem session Search forms made easy with the AEM querybuilder for a detailed overview of the. As per Adobe's documentation you should use GraphQL when you're trying to expose data from Content Fragments. For example: NOTE. Learn more about the CORS OSGi configuration. In this chapter, you use the GraphiQL Explorer to define more advanced queries to gather data of the Content. AEM provides the Content Fragment core component - a component that lets you include content fragments on your pages. Learn more about the CORS OSGi configuration. Create Content Fragments based on the. You’ll learn what its advantages are over REST, what types of web architecture to use it with, and why it benefits both. This sample application retrieves the content from AEM by invoking the persisted GraphQL queries and renders it in an immersive experience. Start the tutorial chapter on Create Content Fragment Models. Select GraphQL to create a new GraphQL API. In this chapter, a stubbed-out sample React app is implemented with the code required to interact with AEM’s GraphQL API, and display team and person data obtained from them. The querying against AEM is performed in the custom React hook getAdventuresByLocale, described in more detail on the Querying AEM GraphQL documentation. Download Advanced-GraphQL-Tutorial-Starter-Package-1. To get started with this advanced tutorial, follow these steps: Set up a development environment using AEM as a Cloud Service. Allowing for bulk delivery of exactly what is needed for rendering as the response to a single API query. Install sample content. Sample Query looks like below: query{ personAddress{ lastName address{ addressLine1 addressLine1 city state country } } }. 15, prior to AEM 6. This can lead to slow performance, if not looked at carefully. Fill in the form: Choose a suitable display name (I chose Todo List ), The name will fill automatically with a suitable name, Select Synthetic GraphQL, Select the file that holds the GraphQL schema, Enter graphql as the API URL suffix. zip. Nov 7, 2022. Download Advanced-GraphQL-Tutorial-Starter-Package-1. rollThreeDice: [Int]Query: is a read-only operation requested to a GraphQL server Mutation: is a read-write operation requested to a GraphQL server Resolver: In GraphQL, the Resolver is responsible for mapping the operation and the code running on the backend which is responsible for handle the request. Learning to use GraphQL with AEM; The Sample Content Fragment Structure; Learning to use GraphQL with AEM - Sample Content and Queries; What’s Next. Start the tutorial chapter on Create Content Fragment Models. Build a React JS app using GraphQL in a pure headless scenario. zip. The GraphQL API of AEM provides a powerful query language to expose data of Content Fragments to downstream applications to support headless content sharing with external systems. The advanced tutorial illustrates in-depth aspects of working with Content Fragment Models, Content Fragments, and the AEM GraphQL persisted queries, including using the GraphQL persisted queries in a. The following table provides links to the reference documentation of several key Java objects to use when interacting programmatically with workflows. Manage GraphQL endpoints in AEM. contributorList is an example of a query type within GraphQL. This is because all fragments that share a model being used within the GraphQL query have to be loaded into memory. Getting started. createValidName. Reply. The examples assume the use of GraphQL queries that return image references using the _dynamicUrl field. Invest in the knowledge, specifications, standards, tooling, data, people, and organizations that define the next 50 years of the API economy. The AEM Headless quick setup gets you hands-on with AEM Headless using content from the WKND Site sample project, and a sample React App (a SPA) that consumes the content over AEM Headless GraphQL APIs. . js file. To get started with GraphQL queries and how they work with AEM Content Fragments, it helps to see some practical examples. Install an AEM package that contains several folders and sample images used to accelerate the tutorial. To implement persisted queries in AEM, you will need. In this chapter, you use the GraphiQL Explorer to define more advanced queries to gather data of the Content. Created for: Developer. In case we have complex GraphQL queries, we are fully depending on AEM to produce performant SQL2 queries for us. Persisted Query logic. This sample application retrieves the content from AEM by invoking the persisted GraphQL queries and renders it in an immersive experience. Learn to use GraphQL with AEM so you can serve content headlessly by exploring sample content and queries. If you expect a list of results: ; add List to the model name; for example, cityList The best way to get started with GraphQL and AEM is to start experiment with queries using our sample content fragment data. Slow Query Classifications. To accelerate the tutorial a starter React JS app is provided. In this chapter, a stubbed-out sample React app is implemented with the code required to interact with AEM’s GraphQL API, and display team and person data obtained from them. . Learn how to create GraphQL queries to return content from Adobe Experience Manager (AEM) and how to use the GraphiQL tool to quickly test, refine, and debug queries. todos {. Once we have the Content Fragment data, we’ll. GraphQL was created to have better communication between the client and the server. Here I’ve got a react based application that displays a list of adventures from AEM. The AEM GraphQL API allows you to update the default cache-control parameters to your queries in order. Network calls to persistent GraphQL queries are cached as these are GET calls. Clone the adobe/aem-guides-wknd-graphql repository:The best way to get started with GraphQL and AEM is to start experiment with queries using our sample content fragment data. Next. Adobe Experience Manager as a Cloud Service’s Cross-Origin Resource Sharing (CORS) facilitates non-AEM web properties to make browser-based client-side calls to AEM’s GraphQL APIs, and other AEM Headless resources. It really depends on the use case and the scope of the project. On your terminal run the following command. For example: GraphQL persisted query. This session dedicated to the query builder is useful for an overview and use of the tool. When a user starts a workflow, an instance is started; this is the corresponding runtime model, created when you Sync your. Multiple variables are. Author in-context a portion of a remotely hosted React. The queries shown in this video, are just a sample to give you an idea of some of the powerful things you can do with GraphQL. The GraphQL API in AEM allows you to expose Content Fragment data to downstream applications. . Slow Query Classifications. js v18; Git; 1. It was open-sourced by Facebook in 2015 and ever since then gained immense popularity as an alternative to REST. The path in AEM that responds to GraphQL queries, and provides access to the GraphQL schemas. src/api/aemHeadlessClient. To get started with this advanced tutorial, follow these steps: Set up a development environment using AEM as a Cloud Service. Prerequisites. The AEM Headless Client for JavaScript is used to execute the GraphQL persisted queries that. In this post, the most common used queries will be explored, using the most important predicates provided by the Query Builder API; following an incremental approach does not neglect the possibility of understanding how to build more complex queries. Benefits of exposing a GraphQL service as a managed API via WSO2 Gateway. Clients can send an HTTP GET request with the query name to execute it. You can pass the parameters like this . Install sample content. Select Full Stack Code option. Core Components. contributorList is an example of a query type within GraphQL. or=true group. Clone the adobe/aem-guides-wknd-graphql repository:On the Source Code tab. GraphQL Persisted Queries. AEM Query examples and tips Posted on August 5, 2020 Many times, JCR queries facilitate the work of the AEM developers, also to review a massive change of. To use GraphQL in AEM, you will need to create a GraphQL endpoint in AEM. Using the AEM JSON exporter, you can deliver the contents of any AEM page in JSON data model format. The following tools should be installed locally: JDK 11; Node. GraphQL API. The GraphiQL tool lets you test and debug your GraphQL queries by enabling you to: select the Endpoint appropriate to the Sites configuration that you want. It provides a more flexible and efficient way to access. An end-to-end tutorial illustrating how to build-out and expose content using AEM Headless. And some sample GraphQL queries, based on the sample Content Fragment structure (Content Fragment Models and related Content Fragments). GraphQL is a query language for APIs that was developed by Facebook. Hello People, Is there a way to apply two _logOp in single GraphQL query? we have a query, where we want to filter result in a folder AND it should match the variable value between two CF model fields, so It should be OR operation. To help with this see: A sample Content Fragment structure. The content of this Cheat Sheet applies to AEM 6. An end-to-end tutorial illustrating how to build-out and expose content using AEM’s GraphQL APIs and consumed by an external app, in a headless CMS scenario. Every GraphQL API must have a schema. This guide uses the AEM as a Cloud Service SDK. Clone the adobe/aem-guides-wknd-graphql repository:The following are examples of how image URLs can prefix the AEM host value made configurable for various headless app frameworks. json. sql. GraphQL provides a complete and understandable description of the data in your API, gives clients the power to ask for exactly what they need and nothing more, makes it easier to evolve APIs over time, and enables powerful developer tools. Install an AEM package that contains several folders and sample images used to accelerate the tutorial. This guide uses the AEM as a Cloud Service SDK. There are three main classifications of slow queries in AEM, listed by severity: Index-less queries. For example: GraphQL persisted query. The content is not tied to the layout, making text editing easier and more organized. It contains sample queries for QueryBuilder, XPath, and SQL-2, covering multiple scenarios which behave differently in terms of query performance. Adobe Experience Manager (AEM)—and before that, CQ—has long used the principle of overlays to let you extend and customize the consoles and other functionality (for example, page authoring ). The content returned can then be used by your applications. The basic operation of queries with GraphQL for AEM adhere to the standard GraphQL specification. Bascially, what I need is , given a content path, e. Learn more about the GraphQL queries at Learning to use GraphQL with AEM - Sample Content and Queries. 1 Answer. These endpoints need to be created, and published, so that they can be accessed securely. Values of GraphQL over REST. The AEM Headless quick setup gets you hands-on with AEM Headless using content from the WKND Site sample project, and a sample React App (a SPA) that consumes the content over AEM Headless GraphQL APIs. Content Fragments are used in AEM to create and manage content for the SPA. Get started with Adobe Experience Manager (AEM) and GraphQL. Query AEM for a list of teams, and their referenced members; Query AEM for a team member’s details; Get the sample React app. The endpoint is the path used to access GraphQL for AEM. When a query request arrives, the abstraction layer forwards the request to the appropriate service(s). For example, to grant access to the. In this post, the most common used queries will be explored, using the most important predicates provided by the Query Builder API; following an incremental approach does not neglect the possibility of understanding how to build more complex queries. Upload and install the package (zip file) downloaded in the previous step. Install an AEM package that contains several folders and sample images used to accelerate the tutorial. Learn how to execute GraphQL queries against endpoints. This tutorial explores how AEM’s GraphQL APIs and headless capabilities can be used to power the experiences surfaced in an external app. It is a schema that defines all of the data inside the API. Author in-context a portion of a remotely hosted React. Created for: Developer. Clone and run the sample client application. Install sample content. Whenever a Content Fragment Model is created or updated, the. This consumes both. Depending on your instance, you can directly access the GraphiQL interface included with AEM GraphQL API for submitting and testing queries. Getting started. GraphQL Query optimization. Learn how to use AEM's Content Fragments with GraphQL for headless content delivery. Clone the adobe/aem-guides-wknd-graphql repository: The queries shown in this video, are just a sample to give you an idea of some of the powerful things you can do with GraphQL. 08-05-2023 06:03 PDT. Select the AEM as a Cloud Service development environment from the Eligible Deployment Environments. An end-to-end tutorial illustrating how to build-out and expose content using AEM’s GraphQL APIs and consumed by an external app, in a headless CMS scenario. To accelerate the tutorial a starter React JS app is provided. Missing search index that causes large repository traversal causing performance issues due to high disk I/O. AEM creates these based. To get started with this advanced tutorial, follow these steps: Set up a development environment using AEM as a Cloud Service. In this tutorial, we’ll use the GraphiQL IDE to start experimenting with queries. In CRXDE Lite, select Tools from the toolbar, then Query, which opens the Query tab. In your Java™ code, use the DataSourcePool service to obtain a javax. Developer. These samples are given in Java™ properties style notation. Understand how to publish GraphQL endpoints. Clicking the name of your test in the Result panel shows all details. Translate. It is used to fetch values and can support arguments and points to arrays. ; Look at some sample queries to see how things work in practice. Of particular interest to validating names are the character mappings that it controls and the following validations: isValidName. Adobe Engineering and Consulting teams have developed a comprehensive set of best practices for AEM developers. Queries that resolve to an index, but must traverse all index entries to collect. Below is sample execution of GraphQL query having filtered result. Learn how AEM automatically generates a GraphQL schema based on a Content Fragment model. The strange thing is that the syntax required by graphql endpoint in AEM, is. AEM SDK; Video Series. Additional resources can be found on the AEM Headless Developer Portal. The queries shown in this video, are just a sample to give you an idea of some of the powerful things you can do with GraphQL. Start the tutorial chapter on Create Content Fragment Models. Then I have another content fragement (let's. ; Dive into the details of the AEM GraphQL API. Start the tutorial chapter on Create Content Fragment Models. Headless implementations enable delivery of experiences across platforms and channels at scale. In this tutorial, you learn how to integrate the requests for persisted queries into the sample WKND GraphQL React app using the AEM Headless Client for JavaScript. An end-to-end tutorial illustrating advanced concepts of Adobe Experience Manager (AEM) GraphQL APIs. In this chapter, a stubbed-out sample React app is implemented with the code required to interact with AEM’s GraphQL API, and display team and person data obtained from them. Congratulations! Congratulations, you created and executed several GraphQL queries! Next Steps. Experiment constructing basic queries using the GraphQL syntax. supportscredentials is set to true as request to AEM Author should be authorized. The GraphQL API. gql in your favorite editor. This endpoint can use all Content Fragment Models from all Sites configurations (defined in the Configuration Browser ). Prerequisites. 1) Find nodes by type under a specific path. Learn how AEM automatically generates a GraphQL schema based on a Content Fragment model. Learn more about the GraphQL queries at Learning to use GraphQL with AEM - Sample Content and Queries. The GraphiQL tool also enables users to persist or save queries to be used by client applications in a production setting. ; Look at some sample queries to see how things work in practice. contributorList is an example of a query type within GraphQL. supportscredentials is set to true as request to AEM Author should be authorized. There are two types of endpoints in AEM: Global Available for use by all sites. supportedheaders includes "Authorization" as requests to AEM Author should be authorized. Learn to use GraphQL with AEM so you can serve content headlessly by exploring sample content and queries. Use the value of the delivery token against the access_token key in the header to authenticate your API. The GraphiQL Explorer tool enables developers to create, and test queries against content on the current AEM environment. Can be used to check whether a proposed name is valid. Clients can send an HTTP GET request with the query name to execute it.