@launchql/query v2.1.6

@launchql/query

Fluent GraphQL query and mutation builder for PostGraphile-based schemas.

Installation

npm install @launchql/query

Why Use @launchql/query?

• ⚡ Build complex, nested GraphQL queries fluently
• ✅ Schema-aware via introspection (PostGraphile optimized)
• 🧠 Prevents common query syntax issues
• 🧩 Designed for composability and clean syntax

Usage

import { QueryBuilder } from '@launchql/query';

const builder = new QueryBuilder({
  introspection: { ...queries, ...mutations } // provide your GraphQL schema metadata
});

const result = builder
  .query('Action')
  .edges(true)
  .getMany({
    select: {
      id: true,
      name: true,
      photo: true,
      title: true,
      actionResults: {
        select: {
          id: true,
          actionId: true
        },
        variables: {
          first: 10,
          before: null,
          filter: {
            name: {
              in: ['abc', 'def']
            },
            actionId: {
              equalTo: 'dc310161-7a42-4b93-6a56-9fa48adcad7e'
            }
          }
        }
      }
    }
  })
  .print();

Output

query getActionsQuery(
  $first: Int
  $last: Int
  $after: Cursor
  $before: Cursor
  $offset: Int
  $condition: ActionCondition
  $filter: ActionFilter
  $orderBy: [ActionsOrderBy!]
) {
  actions(
    first: $first
    last: $last
    offset: $offset
    after: $after
    before: $before
    condition: $condition
    filter: $filter
    orderBy: $orderBy
  ) {
    totalCount
    pageInfo {
      hasNextPage
      hasPreviousPage
      endCursor
      startCursor
    }
    edges {
      cursor
      node {
        id
        name
        photo
        title
        actionResults(
          first: 10
          before: null
          filter: {
            name: { in: ["abc", "def"] }
            actionId: { equalTo: "dc310161-7a42-4b93-6a56-9fa48adcad7e" }
          }
        ) {
          nodes {
            id
            actionId
          }
        }
      }
    }
  }
}

Related LaunchQL Tooling

🧪 Testing

• launchql/pgsql-test: 📊 Isolated testing environments with per-test transaction rollbacks—ideal for integration tests, complex migrations, and RLS simulation.
• launchql/graphile-test: 🔐 Authentication mocking for Graphile-focused test helpers and emulating row-level security contexts.
• launchql/pg-query-context: 🔒 Session context injection to add session-local context (e.g., SET LOCAL) into queries—ideal for setting role, jwt.claims, and other session settings.

🧠 Parsing & AST

• launchql/pgsql-parser: 🔄 SQL conversion engine that interprets and converts PostgreSQL syntax.
• launchql/libpg-query-node: 🌉 Node.js bindings for libpg_query, converting SQL into parse trees.
• launchql/pg-proto-parser: 📦 Protobuf parser for parsing PostgreSQL Protocol Buffers definitions to generate TypeScript interfaces, utility functions, and JSON mappings for enums.
• @pgsql/enums: 🏷️ TypeScript enums for PostgreSQL AST for safe and ergonomic parsing logic.
• @pgsql/types: 📝 Type definitions for PostgreSQL AST nodes in TypeScript.
• @pgsql/utils: 🛠️ AST utilities for constructing and transforming PostgreSQL syntax trees.
• launchql/pg-ast: 🔍 Low-level AST tools and transformations for Postgres query structures.

🚀 API & Dev Tools

• launchql/server: ⚡ Express-based API server powered by PostGraphile to expose a secure, scalable GraphQL API over your Postgres database.
• launchql/explorer: 🔎 Visual API explorer with GraphiQL for browsing across all databases and schemas—useful for debugging, documentation, and API prototyping.

🔁 Streaming & Uploads

• launchql/s3-streamer: 📤 Direct S3 streaming for large files with support for metadata injection and content validation.
• launchql/etag-hash: 🏷️ S3-compatible ETags created by streaming and hashing file uploads in chunks.
• launchql/etag-stream: 🔄 ETag computation via Node stream transformer during upload or transfer.
• launchql/uuid-hash: 🆔 Deterministic UUIDs generated from hashed content, great for deduplication and asset referencing.
• launchql/uuid-stream: 🌊 Streaming UUID generation based on piped file content—ideal for upload pipelines.
• launchql/upload-names: 📂 Collision-resistant filenames utility for structured and unique file names for uploads.

🧰 CLI & Codegen

• @launchql/cli: 🖥️ Command-line toolkit for managing LaunchQL projects—supports database scaffolding, migrations, seeding, code generation, and automation.
• launchql/launchql-gen: ✨ Auto-generated GraphQL mutations and queries dynamically built from introspected schema data.
• @launchql/query-builder: 🏗️ SQL constructor providing a robust TypeScript-based query builder for dynamic generation of SELECT, INSERT, UPDATE, DELETE, and stored procedure calls—supports advanced SQL features like JOIN, GROUP BY, and schema-qualified queries.
• @launchql/query: 🧩 Fluent GraphQL builder for PostGraphile schemas. ⚡ Schema-aware via introspection, 🧩 composable and ergonomic for building deeply nested queries.

Disclaimer

AS DESCRIBED IN THE LICENSES, THE SOFTWARE IS PROVIDED "AS IS", AT YOUR OWN RISK, AND WITHOUT WARRANTIES OF ANY KIND.

No developer or entity involved in creating this software will be liable for any claims or damages whatsoever associated with your use, inability to use, or your interaction with other users of the code, including any direct, indirect, incidental, special, exemplary, punitive or consequential damages, or loss of profits, cryptocurrencies, tokens, or anything else of value.