• Stars
    star
    230
  • Rank 174,031 (Top 4 %)
  • Language
    Java
  • License
    Apache License 2.0
  • Created over 6 years ago
  • Updated over 1 year ago

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Repository Details

IPFS Storage service with search capability

Mahuta

Mahuta (formerly known as IPFS-Store) is a library to aggregate and consolidate files or documents stored by your application on the IPFS network. It provides a solution to collect, store, index, cache and search IPFS data handled by your system in a convenient way.

Project status

Service Master Development
CI Status
Test Coverage Coverage Coverage
Bintray Bintray
Docker
Sonar Quality Gate Status

Features

  • Indexation: Mahuta stores documents or files on IPFS and index the hash with optional metadata.
  • Discovery: Documents and files indexed can be searched using complex logical queries or fuzzy/full text search)
  • Scalable: Optimised for large scale applications using asynchronous writing mechanism and caching
  • Replication: Replica set can be configured to replicate (pin) content across multiple nodes (standard IPFS node or IPFS-cluster node)
  • Multi-platform: Mahuta can be used as a simple embedded Java library for your JVM-based application or run as a simple, scalable and configurable Rest API.

Mahuta.jpg


Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.

Prerequisites

Mahuta depends of two components:

  • an IPFS node (go or js implementation)
  • a search engine (currently only ElasticSearch is supported)

See how to run those two components first run IPFS and ElasticSearch

Java library

  1. Import the Maven dependencies (core module + indexer)
<repository>
    <id>consensys-kauri</id>
    <name>consensys-kauri</name>
    <url>https://consensys.bintray.com/kauri/</url>
</repository>
<dependency>
    <groupId>net.consensys.mahuta</groupId>
    <artifactId>mahuta-core</artifactId>
    <version>${MAHUTA_VERSION}</version>
</dependency>
<dependency>
    <groupId>net.consensys.mahuta</groupId>
    <artifactId>mahuta-indexing-elasticsearch</artifactId>
    <version>${MAHUTA_VERSION}</version>
</dependency>
  1. Configure Mahuta to connect to an IPFS node and an indexer
Mahuta mahuta = new MahutaFactory()
    .configureStorage(IPFSService.connect("localhost", 5001))
    .configureIndexer(ElasticSearchService.connect("localhost", 9300, "cluster-name"))
    .defaultImplementation();
  1. Execute high-level operations
IndexingResponse response = mahuta.prepareStringIndexing("article", "## This is my first article")
    .contentType("text/markdown")
    .indexDocId("article-1")
    .indexFields(ImmutableMap.of("title", "First Article", "author", "greg"))
    .execute();
    
GetResponse response = mahuta.prepareGet()
    .indexName("article")
    .indexDocId("article-1")
    .loadFile(true)
    .execute();
    
SearchResponse response = mahuta.prepareSearch()
    .indexName("article")
    .query(Query.newQuery().equals("author", "greg"))
    .pageRequest(PageRequest.of(0, 20))
    .execute();

For more info, Mahuta Java API

Spring-Data

  1. Import the Maven dependencies
<dependency>
    <groupId>net.consensys.mahuta</groupId>
    <artifactId>mahuta-springdata</artifactId>
    <version>${MAHUTA_VERSION}</version>
</dependency>
  1. Configure your spring-data repository
@IPFSDocument(index = "article", indexConfiguration = "article_mapping.json", indexContent = true)
public class Article {
    
    @Id
    private String id;

    @Hash
    private String hash;

    @Fulltext
    private String title;

    @Fulltext
    private String content;

    @Indexfield
    private Date createdAt;

    @Indexfield
    private String createdBy;
}



public class ArticleRepository extends MahutaRepositoryImpl<Article, String> {

    public ArticleRepository(Mahuta mahuta) {
        super(mahuta);
    }
}

For more info, Mahuta Spring Data

HTTP API with Docker

Prerequisites

Docker

$ docker run -it --name mahuta \ 
    -p 8040:8040 \
    -e MAHUTA_IPFS_HOST=ipfs \
    -e MAHUTA_ELASTICSEARCH_HOST=elasticsearch \
    gjeanmart/mahuta

Docker Compose

Check out the documentation to configure Mahuta HTTP-API with Docker.

Examples

To access the API documentation, go to Mahuta HTTP API

Create the index article

  • Sample Request:
curl -X POST \
  http://localhost:8040/mahuta/config/index/article \
  -H 'Content-Type: application/json' 
  • Success Response:

    • Code: 200
      Content:
{
    "status": "SUCCESS"
}

Store and index an article and its metadata

  • Sample Request:
curl -X POST \
  'http://localhost:8040/mahuta/index' \
  -H 'content-type: application/json' \
  -d '{"content":"# Hello world,\n this is my first file stored on **IPFS**","indexName":"article","indexDocId":"hello_world","contentType":"text/markdown","index_fields":{"title":"Hello world","author":"Gregoire Jeanmart","votes":10,"date_created":1518700549,"tags":["general"]}}'
  • Success Response:

    • Code: 200
      Content:
{
  "indexName": "article",
  "indexDocId": "hello_world",
  "contentId": "QmWHR4e1JHMs2h7XtbDsS9r2oQkyuzVr5bHdkEMYiqfeNm",
  "contentType": "text/markdown",
  "content": null,
  "pinned": true,
  "indexFields": {
    "title": "Hello world",
    "author": "Gregoire Jeanmart",
    "votes": 10,
    "createAt": 1518700549,
    "tags": [
      "general"
    ]
  },
  "status": "SUCCESS"
}

Search by query

  • Sample Request:
curl -X POST \
 'http://localhost:8040/mahuta/query/search?index=article' \
 -H 'content-type: application/json' \
 -d '{"query":[{"name":"title","operation":"CONTAINS","value":"Hello"},{"name":"author.keyword","operation":"EQUALS","value":"Gregoire Jeanmart"},{"name":"votes","operation":"GT","value":"5"}]}'
  • Success Response:

    • Code: 200
      Content:
{
  "status": "SUCCESS",
  "page": {
    "pageRequest": {
      "page": 0,
      "size": 20,
      "sort": null,
      "direction": "ASC"
    },
    "elements": [
      {
        "metadata": {
          "indexName": "article",
          "indexDocId": "hello_world",
          "contentId": "Qmd6VkHiLbLPncVQiewQe3SBP8rrG96HTkYkLbMzMe6tP2",
          "contentType": "text/markdown",
          "content": null,
          "pinned": true,
          "indexFields": {
            "author": "Gregoire Jeanmart",
            "votes": 10,
            "title": "Hello world",
            "createAt": 1518700549,
            "tags": [
              "general"
            ]
          }
        },
        "payload": null
      }
    ],
    "totalElements": 1,
    "totalPages": 1
  }
}

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