Code
library(tidyverse)
library(httr2)
library(jsonlite)httr2 1.0 was recently released. I used it earlier this month in my API explorations to understand what the Python requests equivalent is in R. Python and requests are so convenient that I had not used R yet to access an API.
I became aware of Semantic Scholar, a database of scientific literature, with a nice API.
So here is an exploration of my Semantic Scholar records (ID 51362391) in R with httr2.
API request
API · Fetch paper and author data
author_id <- 51362391
url <-
str_glue(
"https://api.semanticscholar.org/graph/v1/author/{author_id}",
"?fields=name,papers,papers.year,papers.title,papers.citationCount,papers.authors"
)
resp <-
request(url) |>
req_perform()dt <-
resp_body_string(resp) |>
fromJSON()
print(dt[["name"]])[1] "Holger Döring"Publications
papers <-
dt[["papers"]] |>
mutate(
id_short = str_sub(paperId, 1, 5),
title_short = str_sub(title, 1, 30),
authors_n = map_int(authors, \(.x) nrow(.x))
)Number of publications at Semantic Scholar
nrow(papers)[1] 24Publications
papers |>
select(id_short, year, `cita.` = citationCount, `auth.` = authors_n, title_short)| id_short | year | cita. | auth. | title_short |
|---|---|---|---|---|
| a9408 | 2022 | 0 | 1 | Formal binary logic, tidal for |
| c229b | 2022 | 0 | 1 | Beyond the light-barrier -fast |
| e3034 | 2022 | 0 | 1 | Occams Razor-No Dark Matter in |
| 37135 | 2021 | 0 | 1 | Lorentzian SRT-Transformation |
| 84d1f | 2021 | 1 | 3 | Germany: From Stable Coalition |
| 8bd34 | 2020 | 9 | 3 | Institutional constraints on c |
| 1b9e9 | 2019 | 11 | 2 | Party Positions from Wikipedia |
| e9e28 | 2019 | 51 | 2 | Party Facts: A database of pol |
| f93aa | 2019 | 0 | 1 | Gathering and Managing Data on |
| 69fe5 | 2016 | 5 | 1 | Mapping established democracie |
| 4175b | 2015 | 27 | 2 | Is Proportional Representation |
| 85957 | 2015 | 0 | 3 | How do European democracies co |
| a9372 | 2015 | 32 | 2 | Revisiting the left cabinet sh |
| 34e81 | 2014 | 1 | 2 | Jean-Claude Juncker’s new Euro |
| 1273f | 2013 | 61 | 2 | Who Gets into Government? Coal |
| 31eff | 2013 | 31 | 1 | The collective action of data |
| c01fd | 2012 | 2 | 3 | Ministerial Careers and ’The M |
| c4f64 | 2011 | 0 | 2 | Why are States with Pr More Re |
| e3cbe | 2010 | 0 | 1 | Collaborative Data Collection |
| f5948 | 2009 | 0 | 1 | Political representation in Eu |
| 2ebbf | 2008 | 37 | 2 | Electoral and Mechanical Cause |
| ec86a | 2008 | 1 | 1 | Evaluating Scripting Languages |
| 14ab0 | 2007 | 70 | 1 | The Composition of the College |
| 9674d | 2006 | 3 | 2 | Divided Government European St |
Authors
Authors by paper
authors <-
papers |>
select(id_short, year, authors) |>
unnest(authors)
authors| id_short | year | authorId | name |
|---|---|---|---|
| a9408 | 2022 | 51362391 | Holger Döring |
| c229b | 2022 | 51362391 | Holger Döring |
| e3034 | 2022 | 51362391 | Holger Döring |
| 37135 | 2021 | 51362391 | Holger Döring |
| 84d1f | 2021 | 94263396 | M. Debus |
| 84d1f | 2021 | 51362391 | Holger Döring |
| 84d1f | 2021 | 143708020 | Alejandro Ecker |
| 8bd34 | 2020 | 119358998 | Maria Thürk |
| 8bd34 | 2020 | 145985059 | Johan Hellström |
| 8bd34 | 2020 | 51362391 | Holger Döring |
| 1b9e9 | 2019 | 145315358 | M. Herrmann |
| 1b9e9 | 2019 | 51362391 | Holger Döring |
| e9e28 | 2019 | 51362391 | Holger Döring |
| e9e28 | 2019 | 1685592 | Sven Regel |
| f93aa | 2019 | 51362391 | Holger Döring |
| 69fe5 | 2016 | 51362391 | Holger Döring |
| 4175b | 2015 | 51362391 | Holger Döring |
| 4175b | 2015 | 2072035416 | P. Manow |
| 85957 | 2015 | 144008442 | Jonathan Bright |
| 85957 | 2015 | 51362391 | Holger Döring |
| 85957 | 2015 | 145474393 | Conor Little |
| a9372 | 2015 | 51362391 | Holger Döring |
| a9372 | 2015 | 115016266 | Hanna Schwander |
| 34e81 | 2014 | 82184129 | A. Wonka |
| 34e81 | 2014 | 51362391 | Holger Döring |
| 1273f | 2013 | 51362391 | Holger Döring |
| 1273f | 2013 | 145985059 | Johan Hellström |
| 31eff | 2013 | 51362391 | Holger Döring |
| c01fd | 2012 | 144008442 | Jonathan Bright |
| c01fd | 2012 | 51362391 | Holger Döring |
| c01fd | 2012 | 145474393 | Conor Little |
| c4f64 | 2011 | 2072035416 | P. Manow |
| c4f64 | 2011 | 51362391 | Holger Döring |
| e3cbe | 2010 | 51362391 | Holger Döring |
| f5948 | 2009 | 51362391 | Holger Döring |
| 2ebbf | 2008 | 2072035416 | P. Manow |
| 2ebbf | 2008 | 51362391 | Holger Döring |
| ec86a | 2008 | 51362391 | Holger Döring |
| 14ab0 | 2007 | 51362391 | Holger Döring |
| 9674d | 2006 | 2072035416 | P. Manow |
| 9674d | 2006 | 51362391 | Holger Döring |
