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David E. Wheeler edited this page Apr 28, 2011 · 15 revisions

Search API

  • Name: dist
  • Returns: application/json
  • URI Template Variables: {in}
  • Availability: API Server

Full text search API. Returns JSON describing the search results, as well as a few metadata points. The index to be searched is determined by the {in} URI template variable, which may be any one of the following values:

  • docs: Search the documentation.
  • dists: Search distribution metadata, including READMEs and tags.
  • extensions: Search extension metadata
  • tags: Search tags
  • users: Search users

Parameters

The API supports the following parameters, which must be submitted via a URL encoded GET query string ("R" column indicates required parameters):

R Param Type Default Description
q String The search query.
 | **`o`**   | Number   |        0    | Query results offset.
 | **`l`**   | Number   |       50    | Query results limit.

The offset may be any positive integer and defaults to 0. The limit may be any positive integer between 1 and 1024. Defaults to 50 when not specified, and reverts to 50 when any non-supported value is passed.

Query Syntax

Search queries are free-form but support a few operators.

  • Boolean operators AND, OR, and AND NOT.
  • Logical groups, delimited by parentheses.
  • Phrases, delimited by double quotes.
  • Prepended + (plus) and - (minus) to require or prevent a match against a word, phrase, or parenthetical group.
  • Search a single field with fieldname:termtext or fieldname:(foo bar).

Without operators, multiple search terms are ORed together. So a search for "foo bar" is the same as "foo OR bar".

The fields available for targeted searching are specific to the type of index specified by the {in} UIR template variable as follows:

Index Fields
docs title, abstract, body dist
dists dist, abstract, description, readme tags
extensions extension, abstract
users user, name, details
tags tag

By default, if no field is specified in the search query, all fields are searched.

Result Structure

The structure of the returned API is a single JSON object with the following keys:

Key Type Description
query String The search query string
offset Number The the results offset.
limit Number The results limit.
count Number The total number of results.
hits Array The actual results in descending order by score.

The contents of the hits array is a list of objects, the structure of which varies depending on the value of the {in} URI template variable. A few examples:

Docs Hits

Each hit when when searching the docs index reflects a single documentation file from the latest release of a distribution. The hit objects contain the following keys:

Key Type Description
title String The title of the document
excerpt String An excerpt from the document highlighting matched terms in <strong> elements.
abstract String A short description of the extension documented, if any.
dist String The name of the distribution in which the document is found.
version SemVer The version of the distribution release in which the document is found.
docpath String The path to the document within the distribution release, sans file name suffix.
date Date The date the release was uploaded to PGXN.
user String The nickname of the user who uploaded this release of the distribution.
user_name String The full name of the user who uploaded this release of the distribution.

Dists Hits

Each hit when when searching the dists index reflects the latest release of a single distribution. The hit objects contain the following keys:

Key Type Description
dist String The name of the distribution.
version SemVer The version of the distribution release.
excerpt String An excerpt from the distribution README highlighting matched terms.
abstract String A short description of the distribution.
date Date The date the release was uploaded to PGXN.
user String The nickname of the user who uploaded this release of the distribution.
user_name String The full name of the user who uploaded this release of the distribution.

Extensions Hits

Each hit when when searching the extensions index reflects the latest release of a single extension. The hit objects contain the following keys:

Key Type Description
extension String The name of the extension.
excerpt String An excerpt from the extension abstract highlighting matched terms.
abstract String A short description of the extension.
dist String The name of the distribution in which the extension was last released.
version SemVer The version of the distribution release.
docpath String The path to the extension documentation in the distribution release, sans file name suffix.
date Date The date the release was uploaded to PGXN.
user String The nickname of the user who uploaded this release.
user_name String The full name of the user who uploaded this release.

Users Hits

Each hit when when searching the users index reflects a registered PGXN user. The hit objects contain the following keys:

Key Type Description
user String The nickname of the user.
name String The full name of the user.
excerpt String An excerpt from the user's details highlighting matched terms.
uri String The user's URI, if any.

Tags Hits

Each hit when when searching the tags index reflects a single tag. The hit objects contain the following keys:

Key Type Description
tag String The tag.