If I understand right, you already have the author's IDs, if it's true you need to do some loop to get citations from each author, here's how you can do it (also check code example in the online IDE):
const SerpApi = require("google-search-results-nodejs");
const search = new SerpApi.GoogleSearch(process.env.API_KEY); //your api key from serpapi.com
const params = {
engine: "google_scholar_author", // search engine
hl: "en", //search languge
};
const authorsIds = ["EicYvbwAAAAJ", "hqAf_AgAAAAJ", "5M-bz3EAAAAJ"];
const getJson = async () => {
return new Promise((resolve) => {
search.json(params, resolve);
});
};
const getCitations = async () => {
const citations = [];
for (id of authorsIds) {
params.author_id = id; // set author id to request params
const json = await getJson();
citations.push({ author: json.author, citations: json.articles });
}
return citations;
};
getCitations().then((citations) => {
console.dir(citations, { depth: null });
// or do what you want to do next
});
Output:
[
{
"author":{
"name":"George Patton",
"affiliations":"University of Melbourne; Murdoch Childrens Research Institute.",
"email":"Verified email at unimelb.edu.au",
"interests":[
{
"title":"Mental Health",
"link":"https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:mental_health",
"serpapi_link":"https://serpapi.com/search.json?engine=google_scholar_profiles&hl=en&mauthors=label%3Amental_health"
},
{
"title":"Adolescent Health",
"link":"https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:adolescent_health",
"serpapi_link":"https://serpapi.com/search.json?engine=google_scholar_profiles&hl=en&mauthors=label%3Aadolescent_health"
},
{
"title":"Psychiatric epidemiology",
"link":"https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:psychiatric_epidemiology",
"serpapi_link":"https://serpapi.com/search.json?engine=google_scholar_profiles&hl=en&mauthors=label%3Apsychiatric_epidemiology"
},
{
"title":"Psychiatry",
"link":"https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:psychiatry",
"serpapi_link":"https://serpapi.com/search.json?engine=google_scholar_profiles&hl=en&mauthors=label%3Apsychiatry"
}
],
"thumbnail":"https://scholar.googleusercontent.com/citations?view_op=view_photo&user=hqAf_AgAAAAJ&citpid=3"
},
"citations":[
{
"title":"Global, regional, and national comparative risk assessment of 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks, 1990–2015: a systematic …",
"link":"https://scholar.google.com/citations?view_op=view_citation&hl=en&user=hqAf_AgAAAAJ&citation_for_view=hqAf_AgAAAAJ:EsEWqaRxkBgC",
"citation_id":"hqAf_AgAAAAJ:EsEWqaRxkBgC",
"authors":"MH Forouzanfar, A Afshin, LT Alexander, HR Anderson, ZA Bhutta, ...",
"publication":"The lancet 388 (10053), 1659-1724, 2016",
"cited_by":{
"value":8808,
"link":"https://scholar.google.com/scholar?oi=bibs&hl=en&cites=2908528395435776161,3055444908891106187,4467761493745102427,12996769275393345791,10219250234207102035,3883213508573811465,10824011199718854451,9798408928041897835",
"serpapi_link":"https://serpapi.com/search.json?cites=2908528395435776161%2C3055444908891106187%2C4467761493745102427%2C12996769275393345791%2C10219250234207102035%2C3883213508573811465%2C10824011199718854451%2C9798408928041897835&engine=google_scholar&hl=en",
"cites_id":"2908528395435776161,3055444908891106187,4467761493745102427,12996769275393345791,10219250234207102035,3883213508573811465,10824011199718854451,9798408928041897835"
},
"year":"2016"
},
... and other citations
]
},
{
"author":{
"name":"Ann Kristin Knudsen",
"affiliations":"Departement Director Norwegian Institute of Public Health",
"email":"Verified email at fhi.no",
"interests":[
{
"title":"burden of disease",
"link":"https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:burden_of_disease",
"serpapi_link":"https://serpapi.com/search.json?engine=google_scholar_profiles&hl=en&mauthors=label%3Aburden_of_disease"
},
{
"title":"psychiatric epidemiology",
"link":"https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:psychiatric_epidemiology",
"serpapi_link":"https://serpapi.com/search.json?engine=google_scholar_profiles&hl=en&mauthors=label%3Apsychiatric_epidemiology"
},
{
"title":"sickness absence research",
"link":"https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:sickness_absence_research",
"serpapi_link":"https://serpapi.com/search.json?engine=google_scholar_profiles&hl=en&mauthors=label%3Asickness_absence_research"
},
{
"title":"parental alcohol use",
"link":"https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:parental_alcohol_use",
"serpapi_link":"https://serpapi.com/search.json?engine=google_scholar_profiles&hl=en&mauthors=label%3Aparental_alcohol_use"
},
{
"title":"problem drinking",
"link":"https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:problem_drinking",
"serpapi_link":"https://serpapi.com/search.json?engine=google_scholar_profiles&hl=en&mauthors=label%3Aproblem_drinking"
}
],
"thumbnail":"https://scholar.googleusercontent.com/citations?view_op=view_photo&user=5M-bz3EAAAAJ&citpid=1"
},
"citations":[
{
"title":"Global, regional, and national incidence, prevalence, and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries, 1990–2013: a systematic …",
"link":"https://scholar.google.com/citations?view_op=view_citation&hl=en&user=5M-bz3EAAAAJ&citation_for_view=5M-bz3EAAAAJ:hFOr9nPyWt4C",
"citation_id":"5M-bz3EAAAAJ:hFOr9nPyWt4C",
"authors":"T Vos, RM Barber, B Bell, A Bertozzi-Villa, S Biryukov, I Bolliger, ...",
"publication":"The lancet 386 (9995), 743-800, 2015",
"cited_by":{
"value":13443,
"link":"https://scholar.google.com/scholar?oi=bibs&hl=en&cites=1961466636690701750,16526736009745336210,14070611524888519341",
"serpapi_link":"https://serpapi.com/search.json?cites=1961466636690701750%2C16526736009745336210%2C14070611524888519341&engine=google_scholar&hl=en",
"cites_id":"1961466636690701750,16526736009745336210,14070611524888519341"
},
"year":"2015"
},
... and other citations
]
},
... and othe authors
]
There's a web scraping Google Scholar Author info blog post if you want to understand this topic deeper.