rest: REST API Access

In coatless/rest: 'REST' 'API'

Description

Minimal wrapper to work with REST APIs.

This is an extremely minimal client. You need to know the API to be able to use this client. All this function does is:

• Try to substitute each listed parameter into endpoint, using the :parameter notation.

• If a GET request (the default), then add all other listed parameters as query parameters.

• If not a GET request, then send the other parameters in the request body, as JSON.

• Convert the response to an R list using jsonlite::fromJSON().

Usage

rest(
  endpoint,
  ...,
  per_page = NULL,
  .token = NULL,
  .destfile = NULL,
  .overwrite = FALSE,
  .api_url = NULL,
  .method = "GET",
  .limit = NULL,
  .accept = "application/vnd.github.v3+json",
  .send_headers = NULL,
  .progress = TRUE
)

Arguments

endpoint	API endpoint. Must be one of the following forms: METHOD path, e.g. GET /rate_limit, path, e.g. /rate_limit, METHOD url, e.g. GET https://api.domain.com/v1/rate_limit, url, e.g. https://api.domain.com/v1/rate_limit. If the method is not supplied, will use .method, which defaults to "GET".
...	Name-value pairs giving API parameters. Will be matched into endpoint placeholders, sent as query parameters in GET requests, and as a JSON body of POST requests. If there is only one unnamed parameter, and it is a raw vector, then it will not be JSON encoded, but sent as raw data, as is. This can be used for example to add assets to releases. Named NULL values are silently dropped, and named NA values trigger an error.
per_page	Number of items to return per page. If omitted, will be substituted by max(.limit, 100) if .limit is set, otherwise determined by the API (never greater than 100).
.token	Authentication token. Defaults to GITHUB_PAT or GITHUB_TOKEN environment variables, in this order if any is set. See rest_token() if you need more flexibility, e.g. different tokens for different GitHub Enterprise deployments.
.destfile	path to write response to disk. If NULL (default), response will be processed and returned as an object. If path is given, response will be written to disk in the form sent.
.overwrite	if .destfile is provided, whether to overwrite an existing file. Defaults to FALSE.
.api_url	Github API url (default: https://api.github.com). Used if endpoint just contains a path. Defaults to GITHUB_API_URL environment variable if set.
.method	HTTP method to use if not explicitly supplied in the endpoint.
.limit	Number of records to return. This can be used instead of manual pagination. By default it is NULL, which means that the defaults of the GitHub API are used. You can set it to a number to request more (or less) records, and also to Inf to request all records. Note, that if you request many records, then multiple GitHub API calls are used to get them, and this can take a potentially long time.
.accept	The value of the Accept HTTP header. Defaults to "application/vnd.github.v3+json" . If Accept is given in .send_headers, then that will be used. This paramter can be used to provide a custom media type, in order to access a preview feature of the API.
.send_headers	Named character vector of header field values (except Authorization, which is handled via .token). This can be used to override or augment the default User-Agent header: "https://github.com/r-lib/gh".
.progress	Whether to show a progress indicator for calls that need more than one HTTP request.

Value

Answer from the API as a rest_response object, which is also a list. Failed requests will generate an R error. Requests that generate a raw response will return a raw vector.

Author(s)

Maintainer: Gábor Csárdi [e-mail] [contributor]

Authors:

• Jennifer Bryan

• Hadley Wickham

See Also

Useful links:

• https://github.com/coatless/rest

• Report bugs at https://github.com/coatless/rest/issues

coatless/rest documentation built on May 27, 2020, 12:03 a.m.