Source: https://seerepo.com/r/graphile/crystal/built Markdown source: https://seerepo.com/r/graphile/crystal/built.md Description: crystal is a TypeScript repo built with Fastify, Express, Hono, Koa, graphql-http, and 3 more. It stores its data in Postgres. # What is crystal built with? crystal is a TypeScript repo built with Fastify, Express, Hono, Koa, graphql-http, and 3 more. It stores its data in Postgres, signs people in with jsonwebtoken, is tested with mock-fs, Chai, and Mocha, and deploys with @hono/node-server. It has 878,730 written lines, with 250 test files. Read on November 10, 2026, at commit 1c037b4. Repository: https://github.com/graphile/crystal ## Support (/) ### Testing - **mock-fs**: 1 file ### Tools - **Babel**: 1 file - **glob**: 1 file - **jscodeshift**: 1 file ## Support (grafast/codegen-plugin) ### Tools - **graphql-codegen**: 1 file ### Other - **GraphQL**: 1 file ## Support (grafast/dataplan-json) ### Other - **chalk**: 1 file ## Backend (grafast/dataplan-pg) ### Data - **[Postgres](https://seerepo.com/uses/postgres)**: 20 files · [grafast/dataplan-pg/src/index.ts, line 3](https://github.com/graphile/crystal/blob/1c037b4fbfcbb3736d3483ac04de711db4f8d09e/grafast/dataplan-pg/src/index.ts#L3) ## Support (grafast/dataplan-pg) ### Tools - **@graphql-codegen/cli**: 1 file - **glob**: 1 file - **Prettier**: 1 file ### Other - **chalk**: 3 files - **json5**: 3 files - **debug**: 2 files - **iterall**: 2 files - **eventemitter3**: 1 file - **GraphQL**: 1 file ## Support (grafast/grafast) ### Testing - **Chai**: 29 files - **Mocha**: 29 files ### Tools - **@graphql-codegen/cli**: 1 file - **Webpack**: 1 file ### Other - **GraphQL**: 29 files - **chalk**: 9 files - **debug**: 4 files - **iterall**: 4 files - **eventemitter3**: 2 files - **@envelop/core**: 1 file - **json5**: 1 file - **tsafe**: 1 file ## Backend (grafast/grafserv) ### The base - **[Fastify](https://seerepo.com/uses/fastify)**: 2 files - **[Express](https://seerepo.com/uses/express)**: 1 file - **[Hono](https://seerepo.com/uses/hono)**: 1 file - **[Koa](https://seerepo.com/uses/koa)**: 1 file ## Support (grafast/grafserv) ### The base - **graphql-http**: 2 files - **@whatwg-node/server**: 1 file - **H3**: 1 file ### Deploy - **[@hono/node-server](https://seerepo.com/uses/hono-node-server)**: 1 file ### Other - **graphql-ws**: 7 files - **@whatwg-node/fetch**: 4 files - **ws**: 2 files - **@envelop/core**: 1 file - **@hono/node-ws**: 1 file - **eventemitter3**: 1 file - **GraphQL**: 1 file ## Frontend (grafast/ruru-components) ### The base - **[React](https://seerepo.com/uses/react)**: 16 files ### Interface - **graphiql**: 6 files - **[Mermaid](https://seerepo.com/uses/mermaid)**: 2 files - **[react-error-boundary](https://seerepo.com/uses/react-error-boundary)**: 1 file ## Support (grafast/ruru-components) ### Tools - **graphiql**: 1 file - **Prettier**: 1 file ### Other - **GraphQL**: 2 files ## Frontend (grafast/ruru-types) ### Interface - **@graphiql/toolkit**: 1 file ## Support (grafast/ruru-types) ### Tools - **graphiql**: 1 file ## Support (grafast/ruru) ### Other - **http-proxy**: 1 file ## Backend (graphile-build/graphile-build-pg) ### Data - **[Postgres](https://seerepo.com/uses/postgres)**: 11 files · [grafast/dataplan-pg/src/index.ts, line 3](https://github.com/graphile/crystal/blob/1c037b4fbfcbb3736d3483ac04de711db4f8d09e/grafast/dataplan-pg/src/index.ts#L3) ### Sign-in - **[jsonwebtoken](https://seerepo.com/uses/jsonwebtoken)**: 1 file ## Support (graphile-build/graphile-build-pg) ### Other - **GraphQL**: 2 files ## Support (graphile-build/graphile-build) ### Other - **GraphQL**: 5 files - **chalk**: 3 files - **debug**: 2 files - **pluralize**: 2 files - **Lodash**: 1 file - **SemVer**: 1 file - **transliteration**: 1 file ## Support (graphile-build/graphile-simplify-inflection) ### Other - **GraphQL**: 1 file ## Support (graphile-build/graphile-utils) ### Other - **GraphQL**: 1 file - **json5**: 1 file ## Backend (postgraphile/pgl) ### Data - **[Postgres](https://seerepo.com/uses/postgres)**: 2 files · [grafast/dataplan-pg/src/index.ts, line 3](https://github.com/graphile/crystal/blob/1c037b4fbfcbb3736d3483ac04de711db4f8d09e/grafast/dataplan-pg/src/index.ts#L3) ## Backend (postgraphile/postgraphile) ### Data - **[Postgres](https://seerepo.com/uses/postgres)**: 1 file · [grafast/dataplan-pg/src/index.ts, line 3](https://github.com/graphile/crystal/blob/1c037b4fbfcbb3736d3483ac04de711db4f8d09e/grafast/dataplan-pg/src/index.ts#L3) ### Sign-in - **[jsonwebtoken](https://seerepo.com/uses/jsonwebtoken)**: 1 file ## Support (postgraphile/postgraphile) ### Tools - **glob**: 1 file ### Other - **GraphQL**: 69 files - **iterall**: 1 file - **json5**: 1 file ## Support (utils/eslint-plugin-graphile-export) ### Tools - **ESLint**: 8 files - **Babel**: 6 files ## Support (utils/graphile-config) ### Testing - **Chai**: 4 files - **Mocha**: 4 files ### Tools - **interpret**: 1 file - **yargs**: 1 file ## Backend (utils/graphile-export) ### Data - **[Postgres](https://seerepo.com/uses/postgres)**: 1 file · [grafast/dataplan-pg/src/index.ts, line 3](https://github.com/graphile/crystal/blob/1c037b4fbfcbb3736d3483ac04de711db4f8d09e/grafast/dataplan-pg/src/index.ts#L3) ## Support (utils/graphile-export) ### Tools - **Babel**: 2 files - **ESLint**: 1 file - **Prettier**: 1 file ### Other - **GraphQL**: 1 file ## Support (utils/graphile) ### Tools - **TypeScript**: 3 files - **source-map-js**: 1 file ### Other - **chalk**: 4 files ## Support (utils/jest-serializer-graphql-schema) ### Other - **GraphQL**: 2 files - **pretty-format**: 1 file ## Support (utils/jest-serializer-simple) ### Other - **json5**: 1 file - **pretty-format**: 1 file ## Backend (utils/lds) ### Data - **[Postgres](https://seerepo.com/uses/postgres)**: 1 file · [grafast/dataplan-pg/src/index.ts, line 3](https://github.com/graphile/crystal/blob/1c037b4fbfcbb3736d3483ac04de711db4f8d09e/grafast/dataplan-pg/src/index.ts#L3) ## Support (utils/lds) ### Other - **ws**: 1 file ## Other repos with a similar stack - [apache/superset](https://seerepo.com/r/apache/superset/built): Postgres, Express, React, react-error-boundary, jsonwebtoken · [Compare](https://seerepo.com/compare/apache/superset/vs/graphile/crystal) - [twentyhq/twenty](https://seerepo.com/r/twentyhq/twenty/built): Postgres, Express, React, react-error-boundary, jsonwebtoken · [Compare](https://seerepo.com/compare/graphile/crystal/vs/twentyhq/twenty) - [gatsbyjs/gatsby](https://seerepo.com/r/gatsbyjs/gatsby/built): Express, graphql-http, React, graphiql, react-error-boundary · [Compare](https://seerepo.com/compare/gatsbyjs/gatsby/vs/graphile/crystal) - [TryGhost/Ghost](https://seerepo.com/r/TryGhost/Ghost/built): Express, Hono, React, react-error-boundary, jsonwebtoken · [Compare](https://seerepo.com/compare/graphile/crystal/vs/TryGhost/Ghost) - [RocketChat/Rocket.Chat](https://seerepo.com/r/RocketChat/Rocket.Chat/built): Express, Hono, React, @hono/node-server, react-error-boundary · [Compare](https://seerepo.com/compare/graphile/crystal/vs/RocketChat/Rocket.Chat) - [novuhq/novu](https://seerepo.com/r/novuhq/novu/built): Express, Hono, H3, React, jsonwebtoken · [Compare](https://seerepo.com/compare/graphile/crystal/vs/novuhq/novu) ## Frequently asked questions ### What language is crystal written in? crystal is written in TypeScript, with 878,730 written lines. ### What framework does crystal use? crystal is built with Fastify, Express, Hono, Koa, graphql-http, @whatwg-node/server, H3, and React. ### What database does crystal use? crystal stores its data in Postgres. The proof: [grafast/dataplan-pg/src/index.ts, line 3](https://github.com/graphile/crystal/blob/1c037b4fbfcbb3736d3483ac04de711db4f8d09e/grafast/dataplan-pg/src/index.ts#L3) ### What does crystal sign people in with? crystal signs people in with jsonwebtoken. ### Does crystal have tests? Yes. crystal has 250 test files and is tested with mock-fs, Chai, and Mocha. ### Which repos have a stack like crystal's? The ones that share most of its stack: apache/superset, twentyhq/twenty, and gatsbyjs/gatsby. ## What is your repo built with? Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.