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Fuzzy Search
Plugin verified by Strapi

A plugin for Strapi Headless CMS that provides the ability to add a weighted fuzzy search to any content type

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Strapi-plugin-fuzzy-search

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Register a weighted fuzzy search endpoint for Strapi Headless CMS you can add your content types to in no time.

Uses fuzzysort under the hood: Simple, quick and easy. No need to worry about setting up an instance for a complex search engine.

Table of Contents

Roadmap 🏗️

  • Return indices/highlights of matches
  • Improve response performance
  • Include option to hide unpublished content by default
  • Allow single types as content types
  • Pass configuration as query params/args
    • Configure fuzzysort through params/args per content type

Requirements

Strapi Version >= v4.11.4

For compatibility with older Strapi versions please use older Versions of this package (<= 1.11.2 and <= 2.0.3)

Installation

Enable the fuzzy-search plugin in the ./config/plugins.js of your Strapi project.

Make sure to set the appropriate permissions for the search route in the Permissions tab of the Users & Permission Plugin for the role to be able to access the search route.

Options/Config

Mandatory settings are marked with *.

General Options

The plugin requires several configurations to be set in the .config/plugins.js file of your Strapi project to work.

KeyTypeNotes                                              
contentTypes*Array of ObjectsList the content types you want to register for fuzzysort. Each object requires the uid: string and modelName: string to be set for a content type
transliteratebooleanIf this is set to true the search will additionally run against transliterated versions of the content for the keys specified in the keys array for a given content type. E.g. 你好 will match for ni hao. Note that activating this feature for a content type comes at a performance cost and may increase the response time.

IMPORTANT: Please note that as of now, only collectionTypes are supported as contentTypes.

Fuzzysort Options

The fuzzysortOptions allow for some finetuning of fuzzysorts searching algorithm to your needs.

KeyTypeNotes
characterLimitint (positive)Limits the length of characters the algorithm is searching through for any string of the content type
thresholdint (negative)Sets the threshold for the score of the entries that will be returned. The lower, the "fuzzier" the results.
limitint (positive)Limits the amount of entries returned from the search
keys*array of objectsLists the fields of the models the algorithm should search (name: string) and a factor to weight them by weight: int. The higher the weight, the higher a match for a given field will be evaluated for a content type.

Full Example config

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module.exports = ({ env }) => ({
  // ...

  "fuzzy-search": {
    enabled: true,
    config: {
      contentTypes: [
        {
          uid: "api::author.author",
          modelName: "author",
          transliterate: true,
          fuzzysortOptions: {
            characterLimit: 300,
            threshold: -600,
            limit: 10,
            keys: [
              {
                name: "name",
                weight: 100,
              },
              {
                name: "description",
                weight: -100,
              },
            ],
          },
        },
        {
          uid: "api::book.book",
          modelName: "book",
          fuzzysortOptions: {
            characterLimit: 500,
            keys: [
              {
                name: "title",
                weight: 200,
              },
              {
                name: "description",
                weight: -200,
              },
            ],
          },
        },
      ],
    },
  },

  // ...
});

A note on performance:

A high characterLimit, limit, a low threshold (the lower the value the more matches) as well as setting transliterate: true all hamper the performance of the search algorithm. We recommend that you start out with a characterLimit: 500, threshold: -1000, limit: 15 and work your way from there. The characterLimit especially can be quite delicate, so make sure to test every scenario when dialing in it's value.

Usage

Basic Search

Hitting the /api/fuzzy-search/search?query=<your-query-string> will return an array of matched entries for each content type registered in the config. If no match could be found an empty array will be returned. The endpoint accepts an optional locale=<your-locale> query as well.

Alternatively (and if the graphql plugin is installed), a search query is registered that accepts query: String! and locale: String (optional) as arguments. If set, the locale parameter will be used as a default for all queried content types. If you'd rather filter the content types by local on an individual level, pass the locale to the content type as a filter parameter.

IMPORTANT: Please note that in order to query for the locale of the content types via the locale parameter, localization must be enabled for the content types.

Example Requests

REST

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await fetch(`${API_URL}/api/fuzzy-search/search?query=deresh&locale=en`);
// GET /api/fuzzy-search/search?query=deresh&locale=en

GraphQl

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query {
  search(query: "deresh", locale: "en") {
    authors {
      data {
        attributes {
          name
        }
      }
    }
    books {
      data {
        attributes {
          title
          description
        }
      }
    }
  }
}

Example Responses

IMPORTANT: Please note that as of now published as well as unpublished entries will be returned by default. Modify this behavior by passing a filter to the query.

REST

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{
  "authors": [
    {
      "id": 1,
      "name": "Любко Дереш",
      "description": "As an author, Lyubko has had somewhat of a cult-like following among the younger generation in Ukraine since the appearance of his novel Cult at age eighteen, which was followed almost immediately by the publication of another novel, written in early high school.",
      "createdAt": "2022-05-05T13:08:19.312Z",
      "updatedAt": "2022-05-05T13:34:46.488Z",
      "publishedAt": "2022-05-05T13:22:17.310Z"
    }
  ],
  "books": [
    {
      "id": 1,
      "title": "Jacob's Head",
      "description": "Jacob’s Head by Lyubko Deresh is scheduled to be adapted into a movie in Ukraine in the near future.",
      "createdAt": "2022-05-05T13:08:43.816Z",
      "updatedAt": "2022-05-05T13:24:07.107Z",
      "publishedAt": "2022-05-05T13:22:23.764Z"
    }
  ]
}

GraphQl

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{
  "data": {
    "search": {
      "authors": {
        "data": [
          {
            "attributes": {
              "name": "Любко Дереш"
            }
          }
        ]
      },
      "books": {
        "data": [
          {
            "attributes": {
              "title": "Jacob's Head",
              "description": "Jacob’s Head by Lyubko Deresh is scheduled to be adapted into a movie in Ukraine in the near future."
            }
          }
        ]
      }
    }
  }
}

Pagination

REST

The endpoint accepts query parameters in line with Strapis pagination by page parameters. The difference being that the pagination is scoped for the content types individually.

Important: Please note that if pagination parameters are passed for a content type, it's data will now be available under the key data, whereas the pagination meta data can be found under the key meta.

ParameterTypeDescriptionDefault
paginationmyContentTypeIntegerPage number1
paginationmyContentTypeIntegerPage size25
paginationmyContentTypeBooleanAdds the total numbers of entries and the number of pages to the responseTrue

Request:

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await fetch(`${API_URL}/api/fuzzy-search/search?query=deresh&pagination[authors][pageSize]=2&pagination[authors][page]=3`);
// GET /api/fuzzy-search/search?query=deresh&pagination[authors][pageSize]=2&pagination[authors][page]=3

Response:

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{
  "authors": [
    // ...
  ],
  "books": {
    "data": [
      // ...
    ],
    "meta": {
      "pagination": {
        "page": 3,
        "pageSize": 2,
        "total": 6,
        "pageCount": 3
      }
    }
  }
}

GraphQL

The endpoint accepts pagination arguments in line with Strapis pagination by page and pagination by offset parameters.

ParameterDescriptionDefault
paginationpagePage number1
paginationpageSizePage size10
paginationstartStart value0
paginationlimitNumber of entities to return10

IMPORTANT: Please note that in line with Strapis defaults, pagination methods can not be mixed. Always use either page with pageSize or start with limit.

Request:

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search(query: "deresh") {
  books(pagination: { page: 3, pageSize: 2 }) {
    data {
      attributes {
        title
      }
    }
    meta {
      pagination {
        page
        pageSize
        pageCount
        total
      }
    }
  }
}

Response:

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{
  "data": {
    "search": {
      "books": {
        "data": [
          // ...
        ],
        "meta": {
          "pagination": {
            "page": 3,
            "pageSize": 2,
            "pageCount": 3,
            "total": 6
          }
        }
      }
    }
  }
}

Population

REST

The endpoint accepts query parameters in line with Strapis populate parameters. The difference being that the population is scoped for the content types individually.

ParameterTypeDescription
populationmyContentTypeString/PopulationParamsEither pass a string for the relation to populate directly, or build more complex population queries in line with the official documentation on population like in the example below.

Request:

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await fetch(`${API_URL}/api/fuzzy-search/search?query=deresh&populate[books][author][populate][0]=city`);
// GET /api/fuzzy-search/search?query=deresh&populate[books][author][populate][0]=city

Response:

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{
  "authors": [
    // ...
  ],
  "books": [
    {
      "id": 1,
      "title": "A good book",
      "description": "Written by Lyubko Deresh",
      "createdAt": "2022-09-21T16:16:07.365Z",
      "updatedAt": "2023-07-24T12:00:51.624Z",
      "publishedAt": "2022-09-21T16:16:09.973Z",
      "locale": "en",
      "author": {
        "id": 2,
        "name": "Любко Дереш",
        "description": "A poet, novelist, essayist, and translator.",
        "createdAt": "2022-09-24T12:39:34.669Z",
        "updatedAt": "2023-11-10T12:28:22.828Z",
        "publishedAt": "2022-09-24T12:39:53.945Z",
        "locale": "en",
        "city": {
          "id": 1,
          "name": "Pustomyty",
          "createdAt": "2023-11-10T12:26:29.981Z",
          "updatedAt": "2023-11-10T12:26:32.254Z",
          "publishedAt": "2023-11-10T12:26:32.252Z"
        }
      }
    }
  ]
}

GraphQL

See Strapis official GraphQL documentation for queries.

Filters

REST

The endpoint accepts query parameters in line with Strapis filter parameters parameters. The difference being that the filters are scoped for the content types individually.

Request:

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await fetch(`${API_URL}/api/fuzzy-search/search?query=deresh&filters[books][publishedAt][$notNull]=true`);
// GET /api/fuzzy-search/search?query=deresh&filters[books][publishedAt][$notNull]=true

Response:

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{
  "authors": [
    // ...
  ],
  "books": {
    "data": [
      {
        "id": 3,
        "title": "A good book",
        "description": "Written by Lyubko Deresh",
        "createdAt": "2023-02-27T08:11:11.771Z",
        "updatedAt": "2023-02-27T08:11:12.208Z",
        "publishedAt": "2023-02-27T08:11:12.207Z",
        "locale": "en"
      }
    ]
  }
}

GraphQL

The endpoint accepts filter arguments in line with Strapis filters parameter .

Request:

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search(query: "deresh") {
  books(filters: { publishedAt: { notNull: true } }) {
    data {
      attributes {
        title
      }
    }
  }
}

Response:

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{
  "data": {
    "search": {
      "books": {
        "data": [
          {
            "attributes": {
              "title": "A good book"
            }
          }
        ]
      }
    }
  }
}

Filter by Content Type (REST)

The REST-endpoint accepts an optional parameter to select only some content types the fuzzy search should run for.

ParameterTypeDescription
filterscontentTypesstringComma seperated list of the content types to run the search for

Request:

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await fetch(`${API_URL}/api/fuzzy-search/search?query=deresh&filters[contentTypes]=books,authors`);
// GET /api/fuzzy-search/search?query=deresh&filters[contentTypes]=books

Response:

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{
  "authors": [
    // ...
  ],
  "books": [
    // ...
  ]
}

Why use fuzzysort and not something like Fuse.js?

While Fuse.js proofs to be an amazing library, it can yield unexpected results and what is to be perceived as "false positives" (by a human) when searching through longer strings. Fuzzysort aims to solve this problem by introducing the evaluation and scoring of exact matches. Since we had issues with Fuse.js and it's underlying algorithm, we opted for fuzzysearch to do the heavy lifting instead.

Contributing

Feel free to contribute, PRs are always welcome!

Please see the CONTRIBUTING.md for reference.

Found a bug?

If you found a bug or have any questions please submit an issue. If you think you found a way how to fix it, please feel free to create a pull request!

Contributors ✨

Thanks goes to these wonderful people (emoji key):

This project follows the all-contributors specification. Contributions of any kind welcome!

Install now

npm install strapi-plugin-fuzzy-search

STATS

65 GitHub stars682 weekly downloads

Last updated

44 days ago

Strapi Version

4.11.4 and above

Author

github profile image for @DomDew
@DomDew

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