What about modifying data? A mutation looks similar in structure to a query. { "slug": "example" } Create user mutation; GraphQL Playground (improved GraphiQL IDE) Altair (improved GraphiQL IDE) Voyager (visual inspection tool) Northwind: complex schema with 8 models GitHub . Now’s time to test our example and feed the database blog data. But imagine the actual production database table of car; it will have colour, data of manufacture, kilometres travelled, chassis number, fuel type and the list goes on. This is the job of a mutation, which is a server-side way of modifying data. As far as I can tell, the query works on node, as the contents of the 'blog' are being populated. GraphQL can do more than just query data. When a new model is added to your project, so are custom GraphQL mutations. All models has cross-relations to each other. Thus far, most of the focus has been on querying information. For example, if you created a Product model, these mutations would also be generated inside your GraphQL schema:. Add Queries to GraphQL. This will configure GraphQL server to be available at the /api endpoint and, when running in development mode, we will have a nice simple GraphQL ide available at /playground which we will see in action in a minute.. Next, I will expose our types to GraphQL for querying. createProduct Auto-generated mutations. Let’s go back to GraphQL Playground and execute the following to start a subscription: GraphQL Mutation Example. First, you need to download and install the GraphQL Playground tool to your computer. GraphQL By Example: With Graphene, Flask, and Fauna ... our GraphQL API playground!! Obviously, you can use whichever tool suits you best, but we’ll stick to the Playground because it is simple and automatically refreshes the GraphQL schema when you change it on the server. To perform a mutation you need to have a root Mutation object that is an ObjectGraphType. See the official GraphQL documentation on mutations. Mutations make modifications to data and return a result. This is a sample data of some trading company, which consists from 8 models. As with our other requests, we could test this mutation in the playground if we wanted. Mutations are executed serially. Mutations. I am following Andrew Mead's tutorial on Gatsby and for some reason I am having trouble with passing query variables to the query via GraphQL playground. ⚠️ Please do not use --mountPlayground option in production as anyone could access your API Playground and read or change your application’s data.Parse Dashboard has a built-in GraphQL Playground and it is the recommended option for production apps. @Mutation() — Mutations in GraphQL are very similar to Querys but are more about mutating data then querying it. You can only have a single root Mutation object. For each type that you want to expose through GraphQL, you need to create a corresponding GraphQL … This schema used in Relay example app Note: The primary maintainer @acao is on hiatus until December 2020 SECURITY WARNING: both graphql-playground-html and all four (4) of it's middleware dependents until graphql-playground-html@1.6.22 were subject to an XSS Reflection attack vulnerability only to unsanitized user input strings to the functions therein. You can view the mutation itself and its expected schema in the GraphQL Playground in FaunaDB: This tells us that we can call the deleteItem mutation with a data parameter of type ItemInput . The Star Wars example we’re using provides one mutation example (adding a review) and one subscription example (getting notified when a review is added). This was resolved in graphql-playground-html@^1.6.22. Notes: Run parse-server --help or refer to Parse Server Options for a complete list of Parse Server configuration options. 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