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Showing content from https://github.com/dreamit-de/graphql-std-schema below:

dreamit-de/graphql-std-schema: Standard Schema for GraphQL response

Standard Schema for GraphQL response.

Deprecated: This library will no longer be maintained. Use at your own risk!

npm install --save @dreamit/graphql-std-schema

TypeScript declarations are provided within the project.

• Works with both strings and objects
• Strings can be parsed to objects (see parseStringToObject option)
• Checks/Validates if input is a valid GraphQL response
  • At least one of data or errors field exists
  • data needs to be an object
  • errors needs to be an array
  • errors should not be empty is it exists
  • extensions should be an object if it exists
  • There should be no additional fields besides data, errors and extensions (configurable)
• findIssues function is exported and can be used without generating a schema
• Typescript with zero additional production dependencies

The library exports one type and two functions.

• graphQLResponseSchema: Creates a GraphQL response schema. Options can be provided to adjust validation/checks
• findIssues: Checks for issues in the response object with the given options. Internally used but can also be used standalone to check for issues without generating a Schema.
• ValidationOptions: Interface for the Validation options.

Two options are available to configure validation behavior. See interface below.

export interface ValidationOptions {
   /**
    * In a GraphQL response only the fields "data", "errors" and "extensions" are allowed. When set to true
    * this checks allows additional fields. According to GraphQL spec October 2021 this should not be the case.
    */
   allowAdditionalFieldsInResponse?: boolean

   /**
    * If value is a string, define if it should be parsed to an object. Otherwise an issue will be created.
    */
   parseStringToObject?: boolean
}

To validate an input the schema can be generated with graphQLResponseSchema() and the input can be validated with the
validate function. For a quick check the findIssues function can be used without a schema, the function will return a StandardSchemaV1.Issue[].

Example code:

// Optionally, provide options to adjust validation
const schema = graphQLResponseSchema()
const validationResults = schema['~standard'].validate(someInput)

// Quick validation without a schema
const foundValidationIssues = findIssues(someInput)

If you have problems, questions or issues please visit our Issue page and open a new issue if there are no fitting issues for your topic yet.

graphql-std-schema is under MIT-License.

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