strapi graphql mutation strapi graphql mutation

The GraphQL API allows performing queries and mutations to interact with the content-types through Strapi's GraphQL plugin. and GraphQL will parse them accordingly -- including strings with line breaks. If you need help installing the CLI or upgrading to the latest version of Vue.js, follow this tutorial here for details. The GraphQL extension service allows adding new definitions for types, queries, and mutations, replacing resolvers, disabling APIs and fields from APIs, and adding policies, middlewares and authorization. myQuery(id: ID, status: MyInput, limit: Int): [MyQuery]! To do this, open main.js once again and update the router with the newly created route like so, We also need to create a new component named SingleBlog.vue The router link already points to it. This contains some of queries and mutations that hopefully helps you if you are using GraphQL API in your Strapi project Queries and Mutations We made this choice to benefit from both technologies and get their full potential. After a successful installation, launch the project using the following command: Now you should be able to serve up the Vue.js application on the browser. First, let's refactor our previous code by removing the articles reference in AuthorContact: Now let's remove the populate argument that we are passing here: Now, let's do things the right way and create a child resolver to fetch articles associated with the author instead. Then, we pass our populate flag to allow us to populate the article relation data. We added the gt (greater than) prefix to get all post with id greater than 2, We can extend it further by adding a limit to the query and also sorting the result in descending order like so, The result is a listed of sorted posts in descending order starting from the second post with an id of 2 downwards. Lets edit the post we just created like so: updateBlog method accepts an input object that specifies the id of the post we intend to edit and the data in the where and data objects respectively. A malicious user could send a query with a very high depth, which could overload your server. Value is defaulted to Published Node.js version: v12.17. In our code, add this snippet: This query specifies the query name the parameters will take; in this case: Now in our GraphQl playground we should be able to pass a slug instead of an id in our article query: However, if you attempt to run your query right now, it will not work. It can be used to create queries or mutations. Ask Question Asked 2 years, 5 months ago. To query a single category, which is done with the Query.category handler, the request is allowed if the the findOne permission is given. sendItemByEmail(itemID: ID!, email: String! You should now be able to access the GraphQL Playground that will help you to write your GraphQL queries and mutations. The id is passed along to the single post component. For this example, we will overide our article query to allow us to to use a slug instead of an id to query our data. In your GraphQL playground localhost:1337/graphql run the following query: As you can see, we query our article by the id. On the left navigation menu, from the plugin section, click on Content-TypesBuilder. . This contains some of queries and mutations that hopefully helps you if you are using GraphQL API in your Strapi project :) Queries and Mutations Queries are used to read or fetch values ( READ / RETRIEVE ). With the GraphQL plugin, you will be able to add a GraphQL endpoint to fetch and mutate your content. Before we proceed to the Strapi playground to test, we need to grant the public user access to the Blogs collection type. A fully managed platform for your Strapi apps, Integrate Strapi with your favorite tools, Build trustful relations with your customers, Deliver faster digital experiences for your clients, Create and manage content on any platform, Meet the Strapi experts and top contributors, Get paid to share your technical expertise, Strapi user groups to learn, share and collaborate, Learn more about our annual user conference, npx create-strapi-starter graphql-blog next-blog --quickstart, "Maybe the answer is in this article, or not", article(slug: String! The following code example adds a new query definition to Strapi v3: In Strapi v4, REST controllers and GraphQL resolvers are not coupled anymore. In Strapi v4, middlewares applied to a resolver are explicitly defined in a resolversConfig object and applied through the GraphQL extension service: The resolvers automatically generated in Strapi v4 are protected by authorization strategies. To do such things, you should use a mutation which updates the user's data. Once you have saved the changes to your schema, restart the server and run yarn develop again to make sure the changes are reflected, and run the following query below. You can read more here. Dynamic zones are union types in graphql so you need to use fragments to query the fields. To perform authorized requests, you must first get a JWT: Then on each request, send along an Authorization header in the form of { "Authorization": "Bearer YOUR_JWT_GOES_HERE" }. In Strapi v4, its not recommended to reference a REST controller directly from the GraphQL resolver. Congratutlations, you've made it this far. The middlewares key is an array accepting a list of middlewares, each item in this list being either a reference to an already registered policy or an implementation that is passed directly (see middlewares configuration documentation). Building websites and applications with any JavaScript framework (Next.js, React, Vue, Angular). [MyResolverName].policies key. Check Apollo official documentation for more details. [MyResolverName].policies key. Let's create a placeholder schema object that will include the following: Let's define our query and type definitions. You can create it using the following Vue CLI command: Make sure you have the Vue CLI installed globally. How to create a new entry in a specific collection? To use API tokens for authentication, pass the token in the Authorization header using the format Bearer your-api-token. Imagine you want to change a user's email. It returns the Id, Title and Body. For example, you can create a new User and attach many Restaurant to it by writing your query like this: You can also update relational attributes by passing an ID or an array of IDs (depending on the relationship). Notice that variables in the GraphQl mutation is an object not a function like we have in the query earlier. To do that, we install the GraphQL plugin for Strapi. Lets add that function to the Methods object of our app like this. We need content to test our GraphQL API. Lets register this newly created URL as a route. @click="editPo``s``t()``" was called upon submission of the form. Results can be filtered, sorted and paginated. Instead of our resolvers being tied to controllers like they were in Strapi v3, in v4, we call our services directly. What? Shadow CRUD will automatically generate everything needed to start using GraphQL based on your existing models. Connect and share knowledge within a single location that is structured and easy to search. You can download it here : https://altair.sirmuel.design/#download. Modified 2 years, 5 months ago. I've created a Customer content type and I've installed the graphql plugin. further more, we need to create the component that our newly created route points to. * An asynchronous register function that runs before. Here is the query to display a single role : Contributions are what make the open source community such an amazing place to be learn, inspire, and create. Providing content for static site generators (Gatsby, Jekyll, Hugo), Mobile applications (iOS, Android, React Native), and. How to install and set up the Strapi GraphQL plugin, Concepts like resolvers, mutations, and queries in the context of GraphQL, and. Lets try fetching post from our GraphQL backend. The following code example adds a new MyEnum type definition to Strapi v3: The Strapi v3 code example above should be replaced by the following code in Strapi v4: It's recommended to use the nexus definition instead of raw SDL, but its still possible to use typeDefs to write raw SDL. Results can be filtered, sorted and paginated. For example, you can create a new User and attach many Restaurant to it by writing your query like this: You can also update relational attributes by passing an ID or an array of IDs (depending on the relationship). [MyResolverName].middlewares key. Suppose you have created a collection type named idCardVerification. Clone with Git or checkout with SVN using the repositorys web address. Pagination methods can not be mixed. Lets take a look at how we can implement updating of our post content from within our Vue.js application. Queries can accept a filters parameter with the following syntax: Logical operators (and, or, not) can also be used and accept arrays of objects. A Marketplace of plugins to add features or integrations. deleteBlog method accepts an input object with a where object that accepts the id of the post to delete. How to connect Arduino Uno R3 to Bigtreetech SKR Mini E3. * change the 'name' attribute of parent with id 1 to 'foobar', define permissions with the Users & Permissions plugin, using GraphQL Armor with Strapi on the forum, Usage with the Users & Permissions plugin, Disable introspection and playground in production, Only disable queries for the Content-Type, Only disable mutations for the Content-Type, Disable a specific action for the Content-Type, Disable specific actions for the Content-Type, Returns whether a content-type is enabled, Returns whether a content-type is disabled, Returns whether queries are enabled on a content-type, Returns whether queries are disabled on a content-type, Returns whether mutations are enabled on a content-type, Returns whether mutations are disabled on a content-type, Returns whether a field has input enabled, Returns whether a field has output enabled, Returns whether a field has filtering enabled. Now that you have a base schema let's add a custom query. You can unsubscribe from emails at any time, and we will never pass your email to third parties. The GraphQL API reference describes queries, mutations and parameters you can use to interact with your API using Strapi's GraphQL plugin. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. resolver (object): Query (object): lets you define custom resolver, policies for a query. A self-hosted and Enterprise-ready Edition. We get the toEntityResponse method to allow us to convert our response to the appropriate format before returning the data. The maximum number of items returned by the response is limited to 100 by default. In our newly created component, we added a form, implemented slight authentication and made our GraphQL query to create a new user. Next, the data in this array was looped through and displayed in the HTML section of this component. You can verify our newly created query by looking at the GraphQL Playground schema: When looking at this code, everything may seem like it is working correctly, but there is an issue here, and it has something to do with passing populate to our find() method. Value is defaulted to Draft Submit a record using Graphql . You can manually restart the server to make sure the GraphQL plugin is fully initializedyou can do this from the terminal as before: Once the server has restarted, you can test your new GraphQL API by opening the GraphQL playground: localhost:1337/graphql. Mutations Strapi v3: The following code example adds a new mutation definition to Strapi v3: There are many different ways you can add bootstrap to your Vue.js project, but for this tutorial, I used a CDN (Content delivery network). To do this, click on settingsrolespermissions to grant all the necessary access to the Blogs and save. Next, let's look at how you can use custom resolvers to customize both your queries and mutations. This contains some of queries and mutations that hopefully helps you if you are using GraphQL API in your Strapi project :) Queries and Mutations Queries are used to read or fetch values while a mutation is used to write or post values ( READ / RETRIEVE ). What does 'They're at four. Which means when you are mutating data through GraphQL, the resolver redirects your request to the REST controller. Normally, our file will look like this. GraphQL provides developers access to just the particular data they need in a specific request by using just one endpoint (l like to think of it as a smart endpoint), which understands what the front end application expects and returns precisely. Strapi also enables content editors to streamline content delivery (text, images, video, etc.) You can use the images below for guidance. Let's define configurations to allow us public access when making the request. Here is a mutation that might do the task : Place the user ID of the user you want to remove as a variable : Note : Please carefully control which roles are able to conduct delete operation as it is sensitive. We use Mutations for update features too. # Example In your case it is "create". The Users & Permissions plugin is an optional plugin that allows protecting the API with a full authentication process. We assume that the Shadow CRUD feature is enabled. Apollo Server options can be set with the graphql.config.apolloServer configuration object. Did I just create a User using Registration mutation above? If everything is done right, you should be able to click on a post from the home page and be redirected to a single page that will display the content of the post. In Strapi v4, GraphQL dedicated core resolvers are automatically created for the basic CRUD operations for each API. In the quest to solve this, GraphQL was born. In our case, we will pass along the id . # Mutations to create, update or delete a restaurant. Programmatically get all GraphQL schemes Questions and Answers Strapi Backend Stun3R May 10, 2021, 10:13am #1 Hi there! The Users & Permissions plugin offers a more granular control. To simplify and automate the build of the GraphQL schema, we introduced the Shadow CRUD feature. Notice that we already add @click="deletePost() to the Delete Button, that method is not yet created. Lets make our actual GraphQL query from the Vue.js application to access data from the Strapi GraphQL server. This configuration file can include a graphql.config object to define specific configurations for the GraphQL plugin (see plugins configuration documentation). This will require a router feature. * so the request won't be blocked by the policy. Request Feature, Hello there, welcome to Strapi GraphQL API documentation! Go to Documentation in the menu on the left side -> Copy the token in Retrieve your jwt token. Lets take it even further by implementing the delete feature. Strapi provides an easy way to create API on the fly and query your data through a generated GraphQL schema. By default, depthLimit is set to 10 but can be set to a higher value during testing and development. If we wanted to create a new user for instance, it would be createUser instead. We just took a look at how to override an existing resolver. It covers Registration, Login, CRUD operations, and Image Uploads (both Single and Multiple Images whose approaches can be used to upload file). Its likely youll have to customize your queries and mutations for your specific use case. Edit the code in SingleBlog.vue and the following in the card-head section of your html. The Mutation below will do just that. After a successful delete, the blog returns null, In order for a user to access any protect route in Strapi, the user needs to be authenticated. Let's define AuthorsArticles type and make sure to add it to AuthorContact type: Now let's create our child resolver to fetch all articles associated with the author: We now have a separate resolver to fetch articles that are associated with the author. We have created our Collection Type. // Going to be our custom query resolver to get all authors and their details. Policies directly implemented in resolversConfig are functions that take a context object and the strapi instance as arguments. Our completed code should look like this: We are passing strapi so we can access its methods. To use them, register the extension as a function that takes nexus as a parameter: A resolver is a GraphQL query or mutation handler (i.e. It's not them. When defining resolvers, you have two options. To do that, open your terminal and run the following command: Then, start your app and open your browser at http://localhost:1337/graphql. # GraphQL. To do that, open your terminal and run the following command: NPM YARN There is the problem of overloading information (mentioned earlier). In a typical REST API-based application, data is fetched from the back end and displayed on the front end. . He expects his response to look like this. Each field has a default resolver. Previously, we created a new user. Let's start with a simple example to learn how to query an article via slug instead of an id. To increase GraphQL security even further, 3rd-party tools can be used. I'm trying to create a mutation in the graphql playground to create a new Customer, I'm passing the username etc in the query variables, How can I write a mutation to create a new Customer. In Strapi v4, the recommended way to replace or customize a resolver is to use the resolvers field of the new GraphQL extension service: In Strapi v3, a query resolver, a mutation resolver or a field is disabled by setting it to false: Strapi v4 uses programmatic APIs to disable queries, mutation, actions or fields. Let's quickly review what each piece of our code in our custom resolver does. Success! Let's look at how we can extend our article resolver to add this functionality. Resolvers are functions that resolve a value for a type or a field in a schema. Secondly, REST API applications have too many routes. How to customize Strapi's GraphQL backend with custom resolvers for queries and mutations. Does a password policy with a restriction of repeated characters increase security? This is where resolvers come into play. Unlike REST, GraphQL allows you to retrieve only the content needed. From Apollo Server version 3.9 default cache option is cache: 'bounded'. Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. It automatically generates the type definitions, queries, mutations and resolvers based on your models. You can get access to the token from the response object. lets go ahead and create a new post to see our form in action, After creating the new post, you can find it in the home page like so. Lets create a new blog post to continue. Queries in GraphQL are used to fetch data without modifying it. id: String; query {user (id . Hello, I created a Github repository that contains a collection of GraphQL queries and mutations that you can use in your Strapi app. Fill the form to create a new Collection Type. To simplify and automate the build of the GraphQL schema, we introduced the Shadow CRUD feature. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey. * This gives you an opportunity to extend code. Next, type the following query to validate that you can retrieve articles: By default, the Strapi GraphQL plugin has Shadow CRUD enabled, a useful feature eliminating the need to specify any definitions, queries, mutations, or anything else. When making request to protected routes in GraphQL, you need to pass the jwt token along with the request. How do I remove him/her? The service that Strapi provides to perform queries is called the Entity Service and is available with strapi.entityService. To use the GraphQL API, install the GraphQL plugin. Our Vue app has just one component at the moment named HelloWorld, I renamed mine to Home Click on srccomponentsHome.vue and replace the content of the page with the following: First, we imported gql, used in making our GraphQL query. Simply copy and paste the following command line in your terminal to create your first Strapi project. Dynamic zones are union types in graphql so you need to use fragments to query the fields. You signed in with another tab or window. GraphQL APIs are inherently prone to security risks, such as credential leakage and denial of service attacks, that can be reduced by taking appropriate precautions. To use API tokens for authentication, pass the token in the Authorization header using the format Bearer your-api-token. Edit srcmain.js file and add the following code. * If 'categories' have a parent, the function returns true. It's good enough to start building real-world projects. Lets create a blog post with some dummy text as this is for educational purpose only, To use GraphQL in Strapi, we need to install the GraphQL Plugin using the command below. With the GraphQL plugin, you will be able to add a GraphQL endpoint to fetch and mutate your content. Hopefully this approach helps :). It automatically generates the type definitions, queries, mutations and resolvers based on your models.