60 lines
1.2 KiB
TypeScript
60 lines
1.2 KiB
TypeScript
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import { ApolloServer, gql } from "apollo-server-express";
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import { Kind } from "graphql/language";
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import { GraphQLScalarType, GraphQLScalarTypeConfig } from "graphql/type";
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import { DateTime } from "luxon";
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import { db } from "./db";
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const typeDefs = gql`
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type Query {
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"A simple type for getting started"
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hello: String
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migrations: [Migration]!
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}
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type Migration {
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id: ID
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name: String!
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applied_at: DateTime!
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}
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scalar DateTime
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`;
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const dateTimeConfig: GraphQLScalarTypeConfig<DateTime, string> = {
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description: "Date custom scalar type",
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name: "DateTime",
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parseValue(value) {
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return DateTime.fromISO(value as string);
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},
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serialize(value) {
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return (value as DateTime).toISO();
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},
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parseLiteral(ast) {
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if (ast.kind === Kind.STRING) {
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return DateTime.fromISO(ast.value);
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}
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return null;
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}
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};
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const resolvers = {
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DateTime: new GraphQLScalarType(dateTimeConfig),
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Query: {
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hello: async () => {
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return `Hello, world!`;
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},
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migrations: async () => {
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return db.migrations.applied();
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}
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}
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};
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export function server() {
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return new ApolloServer({
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resolvers,
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typeDefs
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});
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}
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