TS contentful content types generator

> A CLI to generate Typescript definitions based on JSON export generated with contentful CLI.


Table of Contents

- Installation
- Usage
- Example
- Local
- Remote
- Input
- Output
- Renderer
- Default Renderer
- Localized Renderer
- JSDoc Renderer
- Type Guard Renderer
- Response Type Renderer
- Direct Usage
- Browser Usage

Installation

``bash
npm install cf-content-types-generator
`

Usage

`bash
Contentful Content Types (TS Definitions) Generator

USAGE
$ cf-content-types-generator [FILE]

ARGUMENTS
FILE local export (.json)

OPTIONS
-e, --environment=environment environment
-h, --help show CLI help
-o, --out=out output directory
-p, --preserve preserve output folder
-X --v10 create contentful.js v10 types
-r, --response add response types (only for v10 types)
-l, --localized add localized types
-d, --jsdoc add JSDoc comments
-g, --typeguard add type guards
-s, --spaceId=spaceId space id
-t, --token=token management token
-v, --version show CLI version
-a, --host The Management API host

`

$3

#### Local

Use a local JSON file to load contentTypes. Flags for spaceId, token and environement will be ignored.

Will print result to console

`bash
cf-content-types-generator path/to/exported/file.json
`

> in a real world scenario, you would pipe the result to a file.

Will store resulting files in target directory

`bash
cf-content-types-generator path/to/exported/file.json -o path/to/target/out/directory
`

> existing directory content will be removed.

#### Remote

If no file arg provided, remote mode is enabled.
spaceId and token flags need to be set.

`bash
cf-content-types-generator -s 2l3j7k267xxx -t CFPAT-64FtZEIOruksuaE_Td0qBvHdELNWBCC0fZUWq1NFxxx
`

$3

As input a json file with a contentTypes field is expected:

`json
{
"contentTypes": [
{
"sys": {
"id": "artist",
"type": "ContentType"
},
"displayField": "name",
"name": "Artist",
"fields": [
{
"id": "name",
"name": "Name",
"type": "Symbol",
"required": true,
"validations": [
{
"unique": true
}
]
},
{
"id": "profilePicture",
"name": "Profile Picture",
"type": "Link",
"required": false,
"validations": [
{
"linkMimetypeGroup": ["image"]
}
],
"linkType": "Asset"
},
{
"id": "bio",
"name": "Bio",
"type": "RichText",
"required": false,
"validations": [
{
"nodes": {}
},
{
"enabledMarks": [],
"message": "Marks are not allowed"
},
{
"enabledNodeTypes": [],
"message": "Nodes are not allowed"
}
]
}
]
},
{
"sys": {
"id": "artwork",
"type": "ContentType"
},
"displayField": "name",
"name": "Artwork",
"fields": [
{
"id": "name",
"name": "Name",
"type": "Symbol",
"required": true,
"validations": []
},
{
"id": "type",
"name": "Type",
"type": "Symbol",
"required": false,
"validations": [
{
"in": ["print", "drawing", "painting"],
"message": "Hello - this is a custom error message."
}
]
},
{
"id": "preview",
"name": "Preview",
"type": "Array",
"required": false,
"validations": [],
"items": {
"type": "Link",
"validations": [
{
"linkMimetypeGroup": ["image", "audio", "video"]
}
],
"linkType": "Asset"
}
},
{
"id": "artist",
"name": "Artist",
"type": "Link",
"required": true,
"validations": [
{
"linkContentType": ["artist"]
}
],
"linkType": "Entry"
}
]
}
]
}
`

> This example shows a subset of the actual payload provided by contentful's cli export command.

$3

`typescript
import * as CFRichTextTypes from '@contentful/rich-text-types';
import { Entry, EntryFields } from 'contentful';

export interface TypeArtistFields {
name: Contentful.EntryFields.Symbol;
profilePicture?: Contentful.Asset;
bio?: EntryFields.RichText;
}

export type TypeArtist = Entry;

export interface TypeArtworkFields {
name: EntryFields.Symbol;
type?: 'print' | 'drawing' | 'painting';
preview?: Asset[];
artist: Entry;
}

export type TypeArtwork = Entry;
`

This all only works if you add the contentful package to your target project to get all relevant type definitions.

Renderer

Extend the default BaseContentTypeRenderer class, or implement the ContentTypeRenderer interface for custom rendering.

Relevant methods to override:

| Methods | Description | Override |
| ------------------- | -------------------------------------------------------------------------- | --------------------------------------------------------------------- |
| render | Enriches a SourceFile with all relevant nodes | To control content type rendering (you should know what you're doing) |
| getContext | Returns new render context object | To define custom type renderer and custom module name function |
| addDefaultImports | Define set of default imports added to every file | To control default imported modules |
| renderField | Returns a PropertySignatureStructure representing a field property | To control Field property rendering |
| renderFieldType | Returns a string representing a field type | To control field type rendering (recommended) |
| renderEntry | Returns a TypeAliasDeclarationStructure representing an entry type alias | To control entry type alias rendering |
| renderEntryType | Returns a string representing an entry type | To control entry type rendering (recommended) |

> Table represents order of execution

Set content type renderers:

`typescript
import {
CFDefinitionsBuilder,
DefaultContentTypeRenderer,
LocalizedContentTypeRenderer,
} from 'cf-content-types-generator';

const builder = new CFDefinitionsBuilder([
new DefaultContentTypeRenderer(),
new LocalizedContentTypeRenderer(),
]);
`

DefaultContentTypeRenderer

A renderer to render type fields and entry definitions. For most scenarios, this renderer is sufficient.
If no custom renderers given, CFDefinitionsBuilder creates a DefaultContentTypeRenderer by default.

#### Example Usage

`typescript
import { CFDefinitionsBuilder, DefaultContentTypeRenderer } from 'cf-content-types-generator';

const builder = new CFDefinitionsBuilder([new DefaultContentTypeRenderer()]);
`

V10ContentTypeRenderer

A renderer to render type fields and entry definitions compatible with contentful.js v10.

`typescript
import { CFDefinitionsBuilder, V10ContentTypeRenderer } from 'cf-content-types-generator';

const builder = new CFDefinitionsBuilder([new V10ContentTypeRenderer()]);
`

LocalizedContentTypeRenderer

Add additional types for localized fields. It adds utility types to transform fields into localized fields for given locales
More details on the utility types can be found here: Issue 121
Note that these types are not needed when using V10ContentTypeRenderer as the v10 entry type already supports localization.

#### Example Usage

`typescript
import {
CFDefinitionsBuilder,
DefaultContentTypeRenderer,
LocalizedContentTypeRenderer,
} from 'cf-content-types-generator';

const builder = new CFDefinitionsBuilder([
new DefaultContentTypeRenderer(),
new LocalizedContentTypeRenderer(),
]);
`

#### Example output

`typescript
export interface TypeCategoryFields {
title: Contentful.EntryFields.Text;
icon?: Contentful.Asset;
categoryDescription?: Contentful.EntryFields.Text;
}

export type TypeCategory = Contentful.Entry;

export type LocalizedTypeCategoryFields = LocalizedFields<
TypeCategoryFields,
Locales
>;

export type LocalizedTypeCategory = LocalizedEntry<
TypeCategory,
Locales
>;
`

#### Example output usage

`typescript
const localizedCategory: LocalizedTypeCategory<'DE-de' | 'En-en'> = {
fields: {
categoryDescription: {
'DE-de': 'german description',
'En-en': 'english description',
},
},
};
`

JSDocRenderer

Adds JSDoc Comments to every Entry type and Field type (created by the default renderer, or a renderer that creates the same entry and field type names). This renderer can be customized through renderer options.

JSDocContentTypeRenderer can only render comments for already rendered types. It's essential to add it after the default renderer, or any renderer that creates entry and field types based on the context moduleName resolution.

#### Example Usage

`typescript
import { CFDefinitionsBuilder, JsDocRenderer } from 'cf-content-types-generator';

const builder = new CFDefinitionsBuilder([new DefaultContentTypeRenderer(), new JsDocRenderer()]);
`

#### Example output

`typescript
import * as Contentful from 'contentful';
/**
* Fields type definition for content type 'TypeAnimal'
* @name TypeAnimalFields
* @type {TypeAnimalFields}
* @memberof TypeAnimal
*/
export interface TypeAnimalFields {
/**
* Field type definition for field 'bread' (Bread)
* @name Bread
* @localized false
*/
bread: Contentful.EntryFields.Symbol;
}

/**
* Entry type definition for content type 'animal' (Animal)
* @name TypeAnimal
* @type {TypeAnimal}
*/
export type TypeAnimal = Contentful.Entry;
`

TypeGuardRenderer

Adds type guard functions for every content type

#### Example Usage

`typescript
import {
CFDefinitionsBuilder,
DefaultContentTypeRenderer,
TypeGuardRenderer,
} from 'cf-content-types-generator';

const builder = new CFDefinitionsBuilder([
new DefaultContentTypeRenderer(),
new TypeGuardRenderer(),
]);
`

#### Example output

`typescript
import { Entry, EntryFields } from 'contentful';
import type { WithContentTypeLink } from 'TypeGuardTypes';

export interface TypeAnimalFields {
bread: EntryFields.Symbol;
}

export type TypeAnimal = Entry;

export function isTypeAnimal(entry: WithContentTypeLink): entry is TypeAnimal {
return entry.sys.contentType.sys.id === 'animal';
}
`

V10TypeGuardRenderer

Adds type guard functions for every content type which are compatible with contentful.js v10.

#### Example Usage

`typescript
import {
CFDefinitionsBuilder,
V10ContentTypeRenderer,
V10TypeGuardRenderer,
} from 'cf-content-types-generator';

const builder = new CFDefinitionsBuilder([
new V10ContentTypeRenderer(),
new V10TypeGuardRenderer(),
]);
`

#### Example output

`typescript
import type {
ChainModifiers,
Entry,
EntryFieldTypes,
EntrySkeletonType,
LocaleCode,
} from 'contentful';

export interface TypeAnimalFields {
bread?: EntryFieldTypes.Symbol;
}

export type TypeAnimalSkeleton = EntrySkeletonType;
export type TypeAnimal = Entry<
TypeAnimalSkeleton,
Modifiers,
Locales
>;

export function isTypeAnimal(
entry: Entry,
): entry is TypeAnimal {
return entry.sys.contentType.sys.id === 'animal';
}
`

ResponseTypeRenderer

Adds response types for every content type which are compatible with contentful.js v10.

#### Example Usage

`typescript
import {
CFDefinitionsBuilder,
V10ContentTypeRenderer,
ResponseTypeRenderer,
} from 'cf-content-types-generator';

const builder = new CFDefinitionsBuilder([
new V10ContentTypeRenderer(),
new ResponseTypeRenderer(),
]);
`

#### Example output

`typescript
import type {
ChainModifiers,
Entry,
EntryFieldTypes,
EntrySkeletonType,
LocaleCode,
} from 'contentful';

export interface TypeAnimalFields {
bread?: EntryFieldTypes.Symbol;
}

export type TypeAnimalSkeleton = EntrySkeletonType;
export type TypeAnimal = Entry<
TypeAnimalSkeleton,
Modifiers,
Locales
>;

export type TypeAnimalWithoutLinkResolutionResponse = TypeAnimal<'WITHOUT_LINK_RESOLUTION'>;
export type TypeAnimalWithoutUnresolvableLinksResponse = TypeAnimal<'WITHOUT_UNRESOLVABLE_LINKS'>;
export type TypeAnimalWithAllLocalesResponse =
TypeAnimal<'WITH_ALL_LOCALES'>;
export type TypeAnimalWithAllLocalesAndWithoutLinkResolutionResponse<
Locales extends LocaleCode = LocaleCode,
> = TypeAnimal<'WITH_ALL_LOCALES' | 'WITHOUT_LINK_RESOLUTION', Locales>;
export type TypeAnimalWithAllLocalesAndWithoutUnresolvableLinksResponse<
Locales extends LocaleCode = LocaleCode,
> = TypeAnimal<'WITH_ALL_LOCALES' | 'WITHOUT_UNRESOLVABLE_LINKS', Locales>;
`

Direct Usage

If you're not a CLI person, or you want to integrate it with your tooling workflow, you can also directly use the CFDefinitionsBuilder from cf-definitions-builder.ts

`typescript
import CFDefinitionsBuilder from 'cf-content-types-generator';

const stringContent = new CFDefinitionsBuilder()
.appendType({
name: 'My Entry',
sys: {
id: 'myEntry',
type: 'ContentType',
},
fields: [
{
id: 'myField',
name: 'My Field',
type: 'Symbol',
required: true,
validations: [],
disabled: false,
localized: false,
omitted: false,
},
],
})
.toString();

console.log(stringContent);

// import { Entry, EntryFields } from "contentful";

//
// export interface TypeMyEntryFields {
// myField: EntryFields.Symbol;
// }
//
// export type TypeMyEntry = Entry;
`

Browser Usage

You can use CFDefinitionsBuilder` also in a browser environment.

> Example: TS Content Types Generator App