graphql-api-koa

GraphQL execution and error handling middleware written from scratch for Koa.

Installation

To install graphql-api-koa and the graphql peer dependency with npm, run:

npm install graphql-api-koa graphql

Setup the Koa middleware in this order:

1. errorHandler, to catch errors from following middleware for a correctly formatted GraphQL response.
2. A GraphQL multipart request processor like graphqlUploadKoa from graphql-upload, to support file uploads (optional).
3. A request body parser like koa-bodyparser.
4. execute, to execute GraphQL.

See the execute middleware examples to get started.

Requirements

• Node.js: ^14.17.0 || ^16.0.0 || >= 18.0.0

Exports

These ECMAScript modules are published to npm and exported via the package.json exports field:

• errorHandler.mjs
• execute.mjs
• GraphQLAggregateError.mjs