@graphql-tools/stitching-directives/esm/stitchingDirectives.js

A set of utils for faster development of GraphQL tools

import { GraphQLDirective, GraphQLList, GraphQLNonNull, GraphQLString } from 'graphql';
import { defaultStitchingDirectiveOptions } from './defaultStitchingDirectiveOptions.js';
import { stitchingDirectivesValidator } from './stitchingDirectivesValidator.js';
import { stitchingDirectivesTransformer } from './stitchingDirectivesTransformer.js';
export function stitchingDirectives(options = {}) {
    const finalOptions = {
        ...defaultStitchingDirectiveOptions,
        ...options,
    };
    const { keyDirectiveName, computedDirectiveName, mergeDirectiveName, canonicalDirectiveName } = finalOptions;
    const keyDirectiveTypeDefs = /* GraphQL */ `directive @${keyDirectiveName}(selectionSet: String!) on OBJECT`;
    const computedDirectiveTypeDefs = /* GraphQL */ `directive @${computedDirectiveName}(selectionSet: String!) on FIELD_DEFINITION`;
    const mergeDirectiveTypeDefs = /* GraphQL */ `directive @${mergeDirectiveName}(argsExpr: String, keyArg: String, keyField: String, key: [String!], additionalArgs: String) on FIELD_DEFINITION`;
    const canonicalDirectiveTypeDefs = /* GraphQL */ `directive @${canonicalDirectiveName} on OBJECT | INTERFACE | INPUT_OBJECT | UNION | ENUM | SCALAR | FIELD_DEFINITION | INPUT_FIELD_DEFINITION`;
    const keyDirective = new GraphQLDirective({
        name: keyDirectiveName,
        locations: ['OBJECT'],
        args: {
            selectionSet: { type: new GraphQLNonNull(GraphQLString) },
        },
    });
    const computedDirective = new GraphQLDirective({
        name: computedDirectiveName,
        locations: ['FIELD_DEFINITION'],
        args: {
            selectionSet: { type: new GraphQLNonNull(GraphQLString) },
        },
    });
    const mergeDirective = new GraphQLDirective({
        name: mergeDirectiveName,
        locations: ['FIELD_DEFINITION'],
        args: {
            argsExpr: { type: GraphQLString },
            keyArg: { type: GraphQLString },
            keyField: { type: GraphQLString },
            key: { type: new GraphQLList(new GraphQLNonNull(GraphQLString)) },
            additionalArgs: { type: GraphQLString },
        },
    });
    const canonicalDirective = new GraphQLDirective({
        name: canonicalDirectiveName,
        locations: [
            'OBJECT',
            'INTERFACE',
            'INPUT_OBJECT',
            'UNION',
            'ENUM',
            'SCALAR',
            'FIELD_DEFINITION',
            'INPUT_FIELD_DEFINITION',
        ],
    });
    const allStitchingDirectivesTypeDefs = [
        keyDirectiveTypeDefs,
        computedDirectiveTypeDefs,
        mergeDirectiveTypeDefs,
        canonicalDirectiveTypeDefs,
    ].join('\n');
    return {
        keyDirectiveTypeDefs,
        computedDirectiveTypeDefs,
        mergeDirectiveTypeDefs,
        canonicalDirectiveTypeDefs,
        stitchingDirectivesTypeDefs: allStitchingDirectivesTypeDefs,
        allStitchingDirectivesTypeDefs,
        keyDirective,
        computedDirective,
        mergeDirective,
        canonicalDirective,
        allStitchingDirectives: [keyDirective, computedDirective, mergeDirective, canonicalDirective],
        stitchingDirectivesValidator: stitchingDirectivesValidator(finalOptions),
        stitchingDirectivesTransformer: stitchingDirectivesTransformer(finalOptions),
    };
}