How to Consume data from Azure DocumentDB using API in R -


how consume documentdb json data in r dataframes. tried using simple api consumption. 

library("json") web_page=geturl("documentdb uri", userpwd = "abc:psswrd")

i followed link "documentdb web api access r" not able figure out how connect.

to query documentdb resources using rest api, first, need generate azure documentdb auth header rest api calls. more details, can refer official documentation , earlier post. second, can interact documentdb making http request package httr.

for more information on how use rest query documentdb resources, see https://docs.microsoft.com/en-us/rest/api/documentdb/querying-documentdb-resources-using-the-rest-api.

here sample code list databases using rest r client:

library(digest) library(base64enc) library(httr)  sys.setlocale("lc_time", "english")  endpoint = "https://{your-database-account}.documents.azure.com"; masterkey = "atpetgjnv3u7ht9ip2mo...";    # replace master key                     currentdate <- tolower(format(sys.time(), "%a, %d %b %y %t", tz = "gmt", usetz = true))  generatemasterkeyauthorizationsignature <- function(verb, resourceid, resourcetype) {    key <- base64decode(masterkey)   text <- sprintf("%s\n", paste(tolower(verb), tolower(resourcetype), resourceid, currentdate, "", sep="\n"))   body <- enc2utf8(text)   signature <- base64encode(hmac(key, body, algo = "sha256", raw = t))   token <- sprintf("type=master&ver=1.0&sig=%s", signature)    return(urlencode(token, reserved = true))  }   # list databases  verb <- "get" resourcetype <- "dbs" resourcelink <- "dbs" resourceid = ""  authheader = generatemasterkeyauthorizationsignature(verb, resourceid, resourcetype)  headers <- c("x-ms-documentdb-isquery" = "true",             "x-ms-date" = currentdate,             "x-ms-version" = "2015-08-06",             "authorization" = authheader)  r <- get(paste(endpoint, resourcelink, sep = "/"), add_headers(headers)) print(content(r, "text"))

execute query

# execute query  databaseid <- "familydb"        # replace database id       collectionid <- "familycoll"    # replace collection id verb <- "post" resourcetype <- "docs" resourcelink <- sprintf("dbs/%s/colls/%s/docs", databaseid, collectionid) resourceid = sprintf("dbs/%s/colls/%s", databaseid, collectionid)  authheader = generatemasterkeyauthorizationsignature(verb, resourceid, resourcetype)  headers <- c("x-ms-documentdb-isquery" = "true",             "x-ms-date" = currentdate,             "x-ms-version" = "2015-08-06",             "authorization" = authheader,             "content-type" = "application/query+json")  body = list("query" = "select * c")              r <- post(paste(endpoint, resourcelink, sep = "/"), add_headers(headers), body = body, encode = "json") print(content(r, "text"))

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