You should now be able to access the GraphQL Playground that will help you to write your GraphQL queries and mutations. That error indicates that are missing the reference to Customer type in the Query component of the Mutation. 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. myQuery(id: ID, status: MyInput, limit: Int): [MyQuery]! Thanks for contributing an answer to Stack Overflow! # Fetch a single entry. Mutations in GraphQL are used to modify data (e.g. Add the following code into your custom schema. Let us scratch the surface of implementing authentication by creating a new user using GraphQL. To do that, open your terminal and run the following command: Then, start your app and open your browser at http://localhost:1337/graphql. The component was created in the /components directory. 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. Whenever we pass populate, we will always make an additional call to fetch the articles data from the database even if we don't explicitly ask for it in our query. We have been able to explore the CRUD feature of GraphQL using Vue.js. Lets make our actual GraphQL query from the Vue.js application to access data from the Strapi GraphQL server. Plugins configuration are defined in the config/plugins.js file. A GraphQL query is used to read or fetch data from the server while a mutation is used to write or post values. 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. Its likely youll have to customize your queries and mutations for your specific use case. The bulk of the technicalities of implementing GraphQL have been simplified when using Strapi. GraphQL was developed internally by Facebook in 2012 before being publicly released in 2015. Example: Response formats for queries and mutations with an example 'Article' content-type, Example query: Find all documents and populate 'categories' relation with the 'name' attribute, Example request: Sorting on title by ascending order, Example request: Sorting on title by descending order, Example request: Sorting on title by ascending order, then on price by descending order, queries and mutations that return information for a single entry mainly use a, queries and mutations that return information for multiple entries mainly use a. Queries can accept a sort parameter with the following syntax: The sorting order can be defined with :asc (ascending order, default, can be omitted) or :desc (for descending order). graphql - How to pass JSON object in grpahql and strapi - Stack Overflow Lets proceed by carrying out CRUD operations on our blog content using the playground. Note : the refId is the ID of the entry you create in your collection type API. The GraphQL API reference describes queries, mutations and parameters you can use to interact with your API using Strapi's GraphQL plugin. To get all the files uploaded to database within your Strapi app, here is the query : Unfortunately, currently Strapi does not provide a query to fetch a single file. But now you should be able to open and close the Edit form modal, You should also be able to Edit post and save like so, Thus far, we have covered Reading, Editing and Deleting post from our GraphQL server. Share Improve this answer Follow answered May 15, 2022 at 16:34 KONDRATJEVKONDRATJEV By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How to Extend and Build Custom Resolvers with Strapi v4 - Medium Lets create a new blog post to continue. You should see a new user is created in the Users collection type in your Strapi admin panel. Learn in this video how you can do CRUD operations with GraphQL on a simple Strapi application. Strapi also has a Playground for testing GraphQL operations. Policies directly implemented in resolversConfig are functions that take a context object and the strapi instance as arguments. The GraphQL Playground is enabled by default for both the development and staging environments, but disabled in production environments. This extension, defined either as an object or a function returning an object, will be used by the use() function exposed by the extension service provided with the GraphQL plugin. Strapi is an open-source project (see LICENSE file for more information). across any device. To use the GraphQL API, install the GraphQL plugin. 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 fetch an entry in your collection type, this query is probably able help you : Pass the ID of the record/entry you want to fetch : This may get you all of the entries in your collection type : You want to change birthPlace value to California, United States. 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. Lets take a look at how we can implement updating of our post content from within our Vue.js application. Whether youre looking to create a simple headless content system for your blog or to fully centralize your e-commerce product information, Strapi offers a robust backend. Also, I believe you are missing "input:" & "data:". As our project is using Strapi v4, we had to learn how to create such queries, compared to v3. We will proceed with the Apollo client as this best suits the purpose of this tutorial. The object describing the extension accepts the following parameters: You can extend the types using Nexusor do it via typeDefs using GraphQL SDL; this is the approach we are going to take here since we can write a whole article on using Nexus. Making statements based on opinion; back them up with references or personal experience. Let's define configurations to allow us public access when making the request. Simply copy and paste the following command line in your terminal to create your first Strapi project. Building websites and applications with any JavaScript framework (Next.js, React, Vue, Angular). For instance, if a 'Category' content-type exists and is queried through GraphQL with the Query.categories handler, the request is allowed if the appropriate find permission for the 'Categories' content-type is given. The maximum number of items returned by the response is limited to 100 by default. To do this, click on settingsrolespermissions to grant all the necessary access to the Blogs and save. Policies directly implemented in resolversConfig are functions that take a context object and the strapi instance as arguments. We extended a resolver and now your query returning data based on the slug. From Apollo Server version 3.9 default cache option is cache: 'bounded'. Here is how to register an account : Next, put your username, email, and password as variables : Then enter your identifier and password as variables : Eventually, you will get JWT in response. Strapi is an easily customizable open-source headless CMS. By default, depthLimit is set to 10 but can be set to a higher value during testing and development. 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. To get started, we need to create a Vue.js application. In our newly created component, we added a form, implemented slight authentication and made our GraphQL query to create a new user. With the Users & Permissions plugin, a GraphQL request is allowed if the appropriate permissions are given. We need a new router and a new component for this feature. * so the request won't be blocked by the policy. Strapi GraphQL - how to return media library object, Can't upload a file to Strapi using GraphQL and Apollo. To use the GraphQL API, install the GraphQL plugin. The object describing the extension accepts the following parameters: The types and plugins parameters are based on Nexus. Did I just create a User using Registration mutation above? 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. Queries can accept a sort parameter with the following syntax: The sorting order can be defined with :asc (ascending order, default, can be omitted) or :desc (for descending order). Lets proceed by carrying out CRUD operations on our blog content using the playground. In your GraphQL playground localhost:1337/graphql run the following query: As you can see, we query our article by the id. It can be used to insert, update, or delete data (. and GraphQL will parse them accordingly -- including strings with line breaks. Here is how you can add a new record inside it : For instace, identifier and birthPlace are variables available in idCardVerification collection type. Usage To get started with GraphQL in your app, please install the plugin first. Be able to run GraphQL queries and Mutations using the Strapi playground, and within a Vue.js application using Apollo. Now, go to http://localhost:1337/graphql in your browser, this will load the GraphQL playground: Implementation of this in the graphql-js repository was incredibly easy with little to none side effects, except for a string check on a resolveSubQueries which is a function shared between query and mutation, a proper fix would separate the execution trees of mutation and queries. The following code example adds a new query definition to Strapi v3: In Strapi v4, REST controllers and GraphQL resolvers are not coupled anymore. Results can be filtered, sorted and paginated. Lets explore some of the most useful filters. On completion of the installation, our Strapi application is set for GraphQL. Community Edition. 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! 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. Create a record in Admin Panel and check the State field. Lets register this newly created URL as a route. Unlike Strapi v3, where we wrote our custom resolvers in the schema.graphql.js file, things in v4 look slightly different. further more, we need to create the component that our newly created route points to. Strapi | What is Strapi, GraphQL is an open-source data query and manipulation language for APIs and a runtime for fulfilling queries with existing data. this would also return a jwt token for access like so. If you have any additional questions, join us at our Discord community, where you can ask questions or help other members with theirs. Internationalization (i18n) - Strapi Developer Docs Can I use the spell Immovable Object to create a castle which floats above the clouds? The method looks a lot similar to that of the Delete function implemented above except for the data we passed along in this case and the additional two variable added $Title: String! GraphQL By default Strapi create REST endpoints for each of your content types. You can get access to the token from the response object. // Going to be our custom query resolver to get all authors and their details. We assume that the Shadow CRUD feature is enabled. After successfully creating a user, it returns the user object and a jwt token. ): ArticleEntityResponse. I have my Strapi server running in that port. Here we'll try something different with GraphQL, which we have done previously with the REST APIs - fetching content that depends on user authentication. To use API tokens for authentication, pass the token in the Authorization header using the format Bearer your-api-token. You should see a new user is created in the Users collection type in your Strapi admin panel. The context object gives access to: Middlewares can be applied to a GraphQL resolver through the resolversConfig. * 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. Lets login using the details of the user we just created above. This makes perfect sense since youve only specified the new query type you want to override, but not how to resolve that query and return data. 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. 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). GraphQL queries look the same for both single items or lists of items; however, we know which one to expect based on what is indicated in the schema. A malicious user could send a query with a very high depth, which could overload your server. id: String; query {user (id . sendItemByEmail(itemID: ID!, email: String! Apollo Server options can be set with the graphql.config.apolloServer configuration object. The response should display birthPlace field with the updated value. Finally, we call our toEntityResponse to convert our response to the appropriate format before returning the data. Be able to carry out CRUD request using GraphQL, Be able to Create an authentication system in Strapi using GraphQL. Strapi graphql mutation - Stack Overflow Best, 1 Like 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 ). Let's start with a simple example to learn how to query an article via slug instead of an id. # Queries to retrieve one or multiple restaurants. GraphQL provides variables as a better approach to pass data in. 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" }. Middlewares directly implemented in resolversConfig can take the GraphQL resolver's parent, args, context and info objects as arguments. // Disable the 'find' operation on the 'restaurant' content-type in the 'restaurant' API, // Disable the 'name' field on the 'document' content-type in the 'document' API. How to customize Strapi's GraphQL backend with custom resolvers for queries and mutations. To learn more, see our tips on writing great answers. Strapi GraphQL Queries and Mutations Documentation Does a password policy with a restriction of repeated characters increase security? Suppose you have created a collection type named idCardVerification. Strapi also enables content editors to streamline content delivery (text, images, video, etc.) in createPost() method, we validated this form and created our GraphQL query to create a new post. An introduction to Strapi | Architecting Vue.js 3 Enterprise-Ready Web Let's use GraphQL's extension service to allow us to add our custom resolvers by adding the following to our index.js file. To query a single category, which is done with the Query.category handler, the request is allowed if the the findOne permission is given. This approach keeps the business logic in one place so both REST and GraphQL can be customized the way you want. We can access this Playground using http://localhost:1337/graphql. I am currently working on an external project and I would like to know if it is possible to retrieve programmatically the different GraphQL schemes (queries, mutations) exposed by my Strapi project? The maximum number of items returned by the response is limited to 100 by default. This value can be changed using the amountLimit configuration option, but should only be changed after careful consideration: a large query can cause a DDoS (Distributed Denial of Service) and may cause abnormal load on your Strapi server, as well as your database server. When extending the GraphQL schema, the resolversConfig key can be used to define a custom configuration for a resolver, which can include: By default, the authorization of a GraphQL request is handled by the registered authorization strategy that can be either API token or through the Users & Permissions plugin. The authorization can be configured: Policies can be applied to a GraphQL resolver through the resolversConfig. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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. What does 'They're at four. Its benefits supersede its downside. Repeat the process in the image above for the rest of the fields. This value can be changed using the amountLimit configuration option, but should only be changed after careful consideration: a large query can cause a DDoS (Distributed Denial of Service) and may cause abnormal load on your Strapi server, as well as your database server. Notice the Nav.vue component. In your Main.js add a new route to the already existing. To simplify and automate the build of the GraphQL schema, we introduced the Shadow CRUD feature. When fetching data from an extensive REST application with many database relationships, there is can be an information overload problem. Previously, we created a new user. Strapis API can return responses in both REST or GraphQL. Clone with Git or checkout with SVN using the repositorys web address. You can learn more about the diferences here. Providing content for static site generators (Gatsby, Jekyll, Hugo), Mobile applications (iOS, Android, React Native), and. [MyResolverName].middlewares key. I would expect this to look something like: Shadow CRUD will automatically generate everything needed to start using GraphQL based on your existing models. The leading Open-Source Headless CMS. A Mutation is a GraphQL Operation that allows you to insert new data or modify the existing data on the server-side. We will focus on Strapi, an open-source headless CMS, and break down how to quickly build and customize tailored headless CMS solutions. // Disable the 'find' operation on the 'restaurant' content-type in the 'restaurant' API, // Disable the 'name' field on the 'document' content-type in the 'document' API.