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# Aurweb RPC interface (Magyar)

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The Aurweb RPC interface is a lightweight RPC interface for the AUR. Queries are sent as HTTP GET requests and the server responds with JSON.

Note This article describes v5 of the RPC Interface API, as updated with AUR v4.7.0 on July 7, 2018.

## API használata

### Query types

There are two query types:

- search
- info

#### search

Package searches can be performed by issuing requests of the form:

    /rpc/v5/search/keyword?by=field

where `keyword` is the search argument and `field` is one of the following values:

- `name` (search by package name only)
- `name-desc` (search by package name and description)
- `maintainer` (search by package maintainer)
- `depends` (search for packages that depend on keywords)
- `makedepends` (search for packages that makedepend on keywords)
- `optdepends` (search for packages that optdepend on keywords)
- `checkdepends` (search for packages that checkdepend on keywords)

The `by` parameter can be skipped and defaults to `name-desc`. Possible return types are `search` and `error`.

If a maintainer search is performed and the search argument is left empty, a list of orphan packages is returned.

Examples:

Search for package:

    https://aur.archlinux.org/rpc/v5/search/package

Search for packages maintained by user:

    https://aur.archlinux.org/rpc/v5/search/user?by=maintainer

Search for packages that have package as `makedepends`:

    https://aur.archlinux.org/rpc/v5/search/package?by=makedepends

Search with callback:

    https://aur.archlinux.org/rpc/v5/search/package?callback=jsonp1192244621103

#### info

Package information can be retrieved by issuing requests of the form:

    /rpc/v5/info?arg%5B%5D=pkg1&arg%5B%5D=pkg2&…

where `pkg1`, `pkg2`, … are the exact matches of names of packages to retrieve package details for.

Possible return types are `multiinfo` and `error`.

Examples:

Info for a single package:

    https://aur.archlinux.org/rpc/v5/info?arg[]=package

Info for multiple packages:

    https://aur.archlinux.org/rpc/v5/info?arg[]=pkg1&arg[]=pkg2

### Return types

The return payload is of one format and currently has three main types. The response will always return a type so that the user can determine if the result of an operation was an error or not.

The format of the return payload is:

    {"version":5,"type":ReturnType,"resultcount":0,"results":ReturnData}

`ReturnType` is a string, and the value is one of:

- `search`
- `multiinfo`
- `error`

#### return data

The type of `ReturnData` is an array of dictionary objects for the `search` and `multiinfo` `ReturnType`, and an empty array for `error` `ReturnType`.

For the `ReturnType` `search`, `ReturnData` may contain the following fields:

- `ID`
- `Name`
- `PackageBaseID`
- `PackageBase`
- `Version`
- `Description`
- `URL`
- `NumVotes`
- `Popularity`
- `OutOfDate`
- `Maintainer`
- `FirstSubmitted`
- `LastModified`
- `URLPath`

For the `ReturnType` `info` and `multiinfo`, `ReturnData` may additionally contain the following fields:

- `Depends`
- `MakeDepends`
- `OptDepends`
- `CheckDepends`
- `Conflicts`
- `Provides`
- `Replaces`
- `Groups`
- `License`
- `Keywords`

Fields that a package does not contain will be omitted from the output.

#### error

The error type has an error response string as the return value. An error response can be returned from either a `search` or an `info` query type.

Example of `ReturnType` `error`:

    {"version":5,"type":"error","resultcount":0,"results":[],"error":"Incorrect by field specified."}

#### search

The search type is the result returned from a search request operation.

Example of `ReturnType` `search`:

    {"version":5,"type":"search","resultcount":2,"results":[{"ID":206807,"Name":"cower-git", ...}]}

#### info

The info type is the result returned from an info request operation.

Example of `ReturnType` `multiinfo`:

     {
        "version":5,
        "type":"multiinfo",
        "resultcount":1,
        "results":[{
            "ID":229417,
            "Name":"cower",
            "PackageBaseID":44921,
            "PackageBase":"cower",
            "Version":"14-2",
            "Description":"A simple AUR agent with a pretentious name",
            "URL":"http:\/\/github.com\/falconindy\/cower",
            "NumVotes":590,
            "Popularity":24.595536,
            "OutOfDate":null,
            "Maintainer":"falconindy",
            "FirstSubmitted":1293676237,
            "LastModified":1441804093,
            "URLPath":"\/cgit\/aur.git\/snapshot\/cower.tar.gz",
            "Depends":[
                "curl",
                "openssl",
                "pacman",
                "yajl"
            ],
            "MakeDepends":[
                "perl"
            ],
            "License":[
                "MIT"
            ],
            "Keywords":[]
        }]
     }

### jsonp

If you are working with a javascript page, and need a JSON callback mechanism, you can do it. You just need to provide an additional callback variable. This callback is usually handled via the javascript library, but here is an example.

Example Query:

    https://aur.archlinux.org/rpc/v5/search/foobar?callback=jsonp1192244621103

Example Result:

    /**/jsonp1192244621103({"version":5,"type":"search","resultcount":1,"results":[{"ID":250608,"Name":"foobar2000","PackageBaseID":37068,"PackageBase":"foobar2000","Version":"1.3.9-1","Description":"An advanced freeware audio player (uses Wine).","URL":"http:\/\/www.foobar2000.org\/","NumVotes":39,"Popularity":0.425966,"OutOfDate":null,"Maintainer":"supermario","FirstSubmitted":1273255356,"LastModified":1448326415,"URLPath":"\/cgit\/aur.git\/snapshot\/foobar2000.tar.gz"}]})

This would automatically call the JavaScript function `jsonp1192244621103` with the parameter set to the results of the RPC call.

## Korlátozások

- HTTP GET requests are limited to URI of 8190 bytes maximum length. However, the official AUR instance running on a nginx server with HTTP/2 uses the default URI maximum length limit of 4443 bytes. Info requests with more than about 200 packages as an argument will need to be split.
- Search queries must be at least two characters long.
- Searches will fail if they contain 5000 or more results.
- The API rate is limited to a maximum of 4000 requests per day per IP.

Note Some of the data is available in AUR metadata archives for bulk processing.

## Reference clients

Sometimes things are easier to understand with examples. A few reference implementations (jQuery, python2, ruby) for old specification and without specifying "v" parameter are available here.

The new path-based version of the /rpc v5 API implementation on python 3.12 is available here.

## További olvasnivaló a témában

API documentation: https://aur.archlinux.org/rpc/swagger

Categories:

- Package management (Magyar)
- Arch projects (Magyar)

Aurweb RPC interface (Magyar)
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