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@datocms/cda-client

A lightweight, TypeScript-ready package that offers various helpers around the native Fetch API to perform GraphQL requests towards DatoCMS Content Delivery API.

TypeScript Support

This package is built with TypeScript and provides type definitions out of the box. It supports TypedDocumentNode for improved type inference when using gql.tada, GraphQL Code Generator or similar tools.

Examples

Basic Query Execution

import { executeQuery } from '@datocms/cda-client';

const query = `
  query {
    allArticles {
      id
      title
    }
  }
`;

const result = await executeQuery(query, {
  token: 'your-api-token-here',
});

console.log(result);

Using with TypeScript and GraphQL Code Generator

import { executeQuery } from '@datocms/cda-client';
import { AllArticlesQuery } from './generated/graphql';

const result = await executeQuery(AllArticlesQuery, {
  token: 'your-api-token-here',
  variables: {
    limit: 10,
  },
});

console.log(result.allArticles);

Installation

npm install @datocms/cda-client

Usage

This package provides several utility functions to help you interact with the DatoCMS Content Delivery API using GraphQL.

executeQuery

The main function to execute a GraphQL query against the DatoCMS Content Delivery API.

import { executeQuery } from '@datocms/cda-client';

const result = await executeQuery(query, options);

Parameters

• query: A GraphQL query string, DocumentNode, or TypedDocumentNode.
• options: An object containing execution options.

Options

| Option | Type | Description | | -------------------- | ---------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------- | | token | string | DatoCMS API token (required) Read more | | includeDrafts | boolean | If true, return draft versions of records Read more | | excludeInvalid | boolean | If true, filter out invalid records Read more | | environment | string | Name of the DatoCMS environment for the query Read more | | contentLink | 'vercel-v1' | If true, embed metadata for Content Link Read more | | baseEditingUrl | string | Base URL of your DatoCMS project Read more | | returnCacheTags | boolean | If true, receive Cache Tags associated with the query Read more | | variables | object | Variables to be sent with the query | | fetchFn | function | Custom fetch function (optional) | | requestInitOptions | Partial<RequestInit> | Additional request initialization options (optional) | | autoRetry | boolean | Automatically retry on rate limit (default: true) |

rawExecuteQuery

Similar to executeQuery, but returns both the query result and the full response object. This can be handy when used together with returnCacheTags to actually retrieve the cache tags.

import { rawExecuteQuery } from '@datocms/cda-client';

const [result, response] = await rawExecuteQuery(query, { token: 'your-api-token-here', returnCacheTags: true });
const cacheTags = response.headers.get('x-cache-tags');

buildRequestHeaders

Builds request headers for a GraphQL query towards the DatoCMS Content Delivery API.

import { buildRequestHeaders } from '@datocms/cda-client';

const headers = buildRequestHeaders(options);

Options

The buildRequestHeaders function accepts the same options as executeQuery, except for variables, fetchFn, and autoRetry.

buildRequestInit

Builds the request initialization object for a GraphQL query towards the DatoCMS Content Delivery API.

import { buildRequestInit } from '@datocms/cda-client';

const requestInit = buildRequestInit(query, options);

Parameters

• query: A GraphQL query string or DocumentNode.
• options: An object containing execution options (same as executeQuery).

Error Handling

In case a query fails (either with an HTTP status code outside of the 2xx range, or for an error in the query), an ApiError exception will be thrown by the client. This error contains all the details of the request and response, allowing you to debug and handle errors effectively.

Example

import { executeQuery, ApiError } from '@datocms/cda-client';

const query = `
  query {
    allArticles {
      id
      title
    }
  }
`;

try {
  const result = await executeQuery(query, {
    token: 'your-api-token-here',
  });
  console.log(result);
} catch (e) {
  if (e instanceof ApiError) {
    // Information about the failed request
    console.log(e.query);
    console.log(e.options);

    // Information about the response
    console.log(e.response.status);
    console.log(e.response.statusText);
    console.log(e.response.headers);
    console.log(e.response.body);
  } else {
    // Handle other types of errors
    throw e;
  }
}

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License.

What is DatoCMS?

DatoCMS is the REST & GraphQL Headless CMS for the modern web.

Trusted by over 25,000 enterprise businesses, agency partners, and individuals across the world, DatoCMS users create online content at scale from a central hub and distribute it via API. We ❤️ our developers, content editors and marketers!

Quick links:

• ⚡️ Get started with a free DatoCMS account
• 🔖 Go through the docs
• ⚙️ Get support from us and the community
• 🆕 Stay up to date on new features and fixes on the changelog

Our featured repos:

• datocms/react-datocms: React helper components for images, Structured Text rendering, and more
• datocms/js-rest-api-clients: Node and browser JavaScript clients for updating and administering your content. For frontend fetches, we recommend using our GraphQL Content Delivery API instead.
• datocms/cli: Command-line interface that includes our Contentful importer and Wordpress importer
• datocms/plugins: Example plugins we've made that extend the editor/admin dashboard
• DatoCMS Starters has examples for various Javascript frontend frameworks

Or see all our public repos