Contentful GraphQL client

Package introduction, couple of paragraphs.

import { createClient } from "@buildinams/contentful-graphql";

const makeQuery = createClient({
  environment: process.env.CONTENTFUL_ENV || "",
  spaceId: process.env.CONTENTFUL_SPACE_ID || "",
  accessToken: process.env.CONTENTFUL_ACCESS_TOKEN || "",
  previewKey: process.env.CONTENTFUL_PREVIEW_KEY || "",
});

Install this package with npm.

npm i @buildinams/contentful-graphql

import {
  createClient,
  ContentfulAdaptor,
} from "@buildinams/contentful-graphql";

const makeQuery = createClient({
  environment: process.env.CONTENTFUL_ENV || "",
  spaceId: process.env.CONTENTFUL_SPACE_ID || "",
  accessToken: process.env.CONTENTFUL_ACCESS_TOKEN || "",
  previewKey: process.env.CONTENTFUL_PREVIEW_KEY || "",
});

const Adaptor = new ContentfulAdaptor({});

const fetchData = async (args: DataTypeArgs) => {
  const data = await makeQuery<DataType>({
    query: dataTypeGraphQLQuery,
    variables: args,
  });

  return Adaptor.adapt(data);
};

import { createClient } from "@buildinams/contentful-graphql";
const makeQuery = createClient({
  environment: process.env.CONTENTFUL_ENV || "",
  spaceId: process.env.CONTENTFUL_SPACE_ID || "",
  accessToken: process.env.CONTENTFUL_ACCESS_TOKEN || "",
  previewKey: process.env.CONTENTFUL_PREVIEW_KEY || "",
});

Create client creates a helper function that is able to send GraphQL queries to your Contentful space. The expected arguments are;

• accessToken - Access token of your Contentful space
• previewKey - Preview key to be able to query draft data
• spaceId - Space to get data from
• baseUrl - Optional; Location of your Contentful space, defaults to; "https://graphql.contentful.com/content"
• environment - Optional; Environment to query, default to; "master"

import { ContentfulAdaptor } from "@buildinams/contentful-graphql";
const Adaptor = new ContentfulAdaptor({
  contentAdaptors: {
    BlockMedia: blockMediaAdaptor,
  },
  pageAdaptors: {
    Homepage: homepageAdaptor,
  },
});

This generates a JavaScript class that gives you the option to adapt the data. Expected arguments;

• contentAdaptors - Content adaptors run recursively over the provided data. When an object matches the pattern: { __typename: {key} } it will run the adaptor with the matching {key}.
• pageAdaptors - Page adaptors only run top level. These can be used if you want to format the initial data but you don't want to run to run them when they are referenced. Example; we want a pageLayout to contain all data but when referenced in a cta we don't want the page adaptor.

The concept of adaptors are generics that modifiy certain data by content type (__typename). Often these can follow the structure below;

const blockMediaAdaptor = (data: ContentfulQueryResponse) => {
  return {
    type: data.file.fileType,
    src: data.src,
    ratio: data.height / data.width,
  };
};

export type BlockMedia = ReturnType<typeof blockMediaAdaptor>;

Within your application you can then use the BlockMedia type to link back to the type of data you expect to receive.

import { getIndicatorProps } from "@buildinams/contentful-graphql/getIndicatorProps";
<h1 {...getIndicatorProps({ entryId: entry.sys.id, fieldId: "title" })}>
  {entry.title}
</h1>;

A small helper function to get indicator mode in Contentful preview mode. Expected arugments;

• entryId - ID of the linked content entry, usually entry.sys.id
• fieldId - Name of the field that's displayed
• locale - Optional; Locale of the displayed entry

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