Indexden-client NPM

indexden-client

Node.js promisified client for indexden.com. Powered by Bluebird and Request-Promise.

Install it

npm install indexden-client

Use it

Javascript

let Indexden = require('indexden-client');

// Create client
let client = new Indexden.Client(
  "http://my-indexden-server.com"
);

// Get metadata about all registered indexes
client
  .getIndexesMetadata()
  .then(data => console.log(data));

Typescript

Since typings for typescript are bundled with this package, you can use it directly with Typescript:

import * as Indexden from 'indexden-client';

// Create client
let client: Indexden.Client = new Indexden.Client(
  "http://my-indexden-server.com"
);

// Get metadata about all registered indexes
client
  .getIndexesMetadata()
  .then(data: Indexden.Indexes.MetadataMap => console.log(data));

Methods

Please refer to the offcial API for all return types and parameters, unless their shape is made explicit here.

When not precised, all methods will return Promise<void>.

getIndexesMetadata(indexName?: string)

GET /v1/indexes, GET /v1/indexes/name

This will return metadata for all known indexes, or to the one specified by indexName.

If indexName is not precised, the result will be a MetadataMap, which is simply a metadata's map having the index's name as key.

createOrUpdateIndex(indexName: string, enablePublicSearch: boolean = false)

PUT /v1/indexes

This will create or update the index indexName.

To enable public search, you must set the second parameter to true. false by default.

removeIndex(indexName: string)

DELETE /v1/indexes

This will delete the index indexName.

indexDocs(indexName: string, docs: Document.Doc | Document.Doc[])

PUT /v1/indexes/docs

This will index or update an indexed document to the given index indexName. Parameter docs can be a single doc or an array of docs, with the following shape:

interface Doc {
  /**
   * The document's ID.
   */
  docid: string;
  
  /**
   * A map from field name to field value.
   * The sum of the length of each field value MUST not be greater than 100kbytes.
   */
  fields: {
    [key: string]: string;
  };

  /**
   * A map from the var number to float.
   */
  variables?: {
    [key: number]: number;
  };

  /**
   * A map from the category name to its value.
   * By default, the document is indexed under the key 'text'.
   */
  categories?: {
    [key: string]: string;
  };
}

removeDocsFromIndex(indexName: string, docIds: Document.Identifier | Document.Identifier[])

DELETE /v1/indexes/docs

This will delete documents specified by docIds in the index indexName.

search(indexName: string, options: Search.Option)

GET /v1/indexes/name/search

This will perform a search in the index indexName. The options parameter must have the following shape:

interface Option {
  /**
   * The query to be performed.
   */
  q: string;

  /**
   * For paging, the first position to return.
   */
  start?: number;

  /**
   * How many results to return (default: 10).
   */
  len?: number;

  /**
   * The number of the scoring function to use (default: 0).
   */
  "function"?: number;

  /**
   * Comma-separated list of fields to fetch.
   * '*' returns all present fields for each document.
   */
  fetch?: string;

  /**
   * 'true' returns all variables for each document as variable_<N> (unset vars return 0).
   */
  fetch_variables?: boolean;

  /**
   * 'true' returns all categories for each document as category_<NAME>.
   */
  fetch_categories?: boolean;

  /**
   * Comma-separated list of fields to snippet.
   */
  snippet?: string;

  /**
   * Value of the query variable <N>.
   */
  "var"?: { [key: number]: string; };

  /**
   *A json map from category name to a list of the admitted values for those categories.
   */
  category_filters?: {
    [key: string]: string[];
  }[];

  /**
   * Comma-separated list of ranges to filter the values of variable <N>.
   * Each range is expressed as BOTTOM:TOP,
   * where any of both limits can be replaced by an * symbol to indicate it should be ignored.
   */
  filter_docvar?: { [key: number]: string; };

  /**
   * Comma-separated list of ranges to filter the values of function <N>.
   * Each range is expressed as BOTTOM:TOP,
   * where any of both limits can be replaced by an * symbol to indicate it should be ignored.
   */
  filter_function?: { [key: number]: string; };

  /**
   * 'true' - global search inside whole index (default false).
   */
  match_any_field?: boolean;
}

The result will have the following shape:

interface Result {
  /**
   * The total number of matches for the query.
   */
  matches: number | string;

  /**
   * A map from category name to a values count map.
   */
  facets: { [key: string]: string; };

  /**
   * A list of objects with the "docid" field.
   */
  results: Match[];

  /**
   * The time it took to search in seconds.
   */
  search_time: number;
}

/**
 * A match from a query.
 * << Search results will contain the document identifiers provided at indexing time.
 * If fetch and snippet fields were specified,
 * the field's content or a snippet of the content can be returned along with the identifiers. >>
 */
interface Match {
  /**
   * The ID under which the doc is registered.
   */
  docid: string;

  /**
   * Query specific document relevance score.
   */
  query_relevance_score?: number;

  /**
   * "variable_<N>": variable value, from 0 to N.
   */
  variables?: {[key: string]: any};

  /**
   * "category_<NAME>": category value for the NAME document category / facet.
   */
  category?: {[key: string]: any};
}

deleteSearch(indexName: string, options: Search.Option)

DELETE /v1/indexes/name/search

Same as the previous version but will remove documents.

createOrUpdateVariables(indexName: string, options: Scoring.Variables)

PUT /v1/indexes/name/docs/variables

This will create or updates variables for the given document, for the index indexName.

The options parameter must have this shape:

interface Variables {
  /**
  * The document's ID.
  */
  docid: string;
  
  /**
   * A map from the var number to float.
   */
  variables: {
    [key: number]: number;
  };
}

createOrUpdateCategories(indexName: string, options: Document.Categories)

PUT /v1/indexes/name/docs/categories

This will create or updates categories for the given document, for the index indexName.

The options parameter must have this shape:

interface Categories {
  /**
  * The document's ID.
  */
  docid: string;
  
  /**
   * A map from the categories' names to the values for this document.
   */
  categories: {
    [key: string]: string;
  };
}

getAllScoringFunctions(indexName: string)

GET /v1/indexes/name/functions

This will gather all known scoring functions for the index indexName.

The result will have the following shape:

interface FunctionMap {
  /**
   * A map to the function formula
   * from the number identifying the function.
   */
  [key: number]: string;
}

defineScoringFunction(indexName: string, functionId: number, f: Scoring.Function)

PUT /v1/indexes/name/functions/num

This will create or update the scoring functions identified by the number functionId and defined by the formula f for the index indexName.

removeScoringFunction(indexName: string, functionId: number)

DELETE /v1/indexes/name/functions/num

This will remove the scoring functions identified by the number functionId from the index indexName.

promoteResult(indexName: string, options: Document.Promoted)

PUT /v1/indexes/name/promote

This will promote the document provided by options in the index indexName for a specific query.

The options parameter must have the following shape:

interface Promoted {
  /**
   * The document's ID.
   */
   docid: string;
   
  /**
   * The query to in which to promote it.
   */
  query: string;
}

autocomplete(indexName: string, options: Search.Autocomplete)

GET /v1/indexes/name/autocomplete

This will suggest search for the provided query for the index indexName.

BEWARE, JSONP is NOT supported by this client.

The options parameter must have the following shape:

interface Autocomplete {
  /**
   * The query to be performed.
   */
  query: string;

  /**
   * The field to take suggestions from.
   * By default, 'text' field will be chosen.
   */
  field?: string;
}

The result will have the following shape:

interface Suggestions {
  /**
   * JSON array with query matches.
   */
  suggestions: string[];

  /**
   * Requested query parameter (may be normalized).
   */
  query: string;
}

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