@aws-amplify/graphql-api-construct
Version:
AppSync GraphQL Api Construct using Amplify GraphQL Transformer.
37 lines • 6.37 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.constructDataSourceStrategies = exports.getModelTypeNames = void 0;
const graphql_1 = require("graphql");
const MODEL_DIRECTIVE_NAME = 'model';
const MANY_TO_MANY_DIRECTIVE_NAME = 'manyToMany';
/**
* Get the type names with model directives in the GraphQL schema in SDL
* @param schema graphql schema in SDL
* @returns type names which model diretives are attached
*/
const getModelTypeNames = (schema) => {
const parsedSchema = (0, graphql_1.parse)(schema);
const nodesWithModelDirective = parsedSchema.definitions.filter((obj) => obj.kind === graphql_1.Kind.OBJECT_TYPE_DEFINITION && obj.directives?.some((dir) => dir.name.value === MODEL_DIRECTIVE_NAME));
const modelKeys = nodesWithModelDirective.map((type) => type.name.value);
nodesWithModelDirective.forEach((obj) => {
const { fields } = obj;
fields?.forEach((field) => {
field.directives?.forEach((dir) => {
if (dir.name.value === MANY_TO_MANY_DIRECTIVE_NAME) {
const relationArg = dir.arguments?.find((arg) => arg.name.value === 'relationName');
if (relationArg) {
modelKeys.push(relationArg.value.value);
}
}
});
});
});
return modelKeys.filter((key, idx) => modelKeys.indexOf(key) === idx);
};
exports.getModelTypeNames = getModelTypeNames;
const constructDataSourceStrategies = (schema, dataSourceStrategy) => {
const modelKeys = (0, exports.getModelTypeNames)(schema);
return modelKeys.reduce((acc, cur) => ({ ...acc, [cur]: dataSourceStrategy }), {});
};
exports.constructDataSourceStrategies = constructDataSourceStrategies;
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