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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| #' | ||
| #' @references <https://developer.twitter.com/en/docs/twitter-api/annotations/overview> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| # Creating requests #### | ||
| auth_is_bearer <- function(token = NULL) { | ||
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| if (is.null(token)) { | ||
| token <- auth_get() | ||
| } | ||
| inherits(token, "rtweet_bearer") | ||
| } | ||
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| # Check token readiness for API v2 | ||
| # | ||
| # Check if current authentication is ready for API v2 usage. | ||
| # @param token The token to check if can be used for API v2. | ||
| # @param mechanism Which flavor of authentication must be used. | ||
| # | ||
| # The authentication method required for each endpoint might change, this is a | ||
| # helper for examples. | ||
| # | ||
| # @return If no issue is found the original token, if something is amiss it raises an error. | ||
| # @export | ||
| # | ||
| # @examples | ||
| # if (auth_has_default()) { | ||
| # tryCatch(check_token_v2()) | ||
| # } | ||
| check_token_v2 <- function(token = NULL, mechanism = "bearer") { | ||
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| token <- token %||% auth_get() | ||
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| if (mechanism == "bearer" && !auth_is_bearer(token)) { | ||
| abort("A bearer `token` is needed for this endpoint.") | ||
| } | ||
| token | ||
| } | ||
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| # General function to create the requests for Twitter API v2 with retry limits | ||
| # and error handling | ||
| req_v2 <- function(token = NULL) { | ||
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| token <- check_token_v2(token) | ||
| req <- httr2::request("https://api.twitter.com/2") | ||
| req_headers <- httr2::req_headers(req, | ||
| `Content-type` = "application/json", | ||
| Authorization = paste0("Bearer ", token$token) | ||
| ) | ||
| req_try <- httr2::req_retry(req_headers, | ||
| is_transient = twitter_is_transient, | ||
| after = twitter_after) | ||
| req_try | ||
| } | ||
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| twitter_is_transient <- function(resp) { | ||
| httr2::resp_status(resp) %in% c(403, 503) && | ||
| identical(httr2::resp_header(resp, "x-rate-limit-remaining"), "0") | ||
| } | ||
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| twitter_after <- function(resp) { | ||
| when <- as.numeric(httr2::resp_header(resp, "x-rate-limit-reset")) | ||
| when - unclass(Sys.time()) | ||
| } | ||
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| endpoint_v2 <- function(token, path, throttle) { | ||
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| req <- httr2::req_url_path_append(req_v2(token), path) | ||
| httr2::req_throttle(req, throttle, realm = path) | ||
| } | ||
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| prepare_params <- function(x) { | ||
| lapply(x, paste, collapse = ",") | ||
| } | ||
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| # Handling responses #### | ||
| parsing <- function(x) { | ||
| if (!is.logical(x) || any(is.na(x))) { | ||
| stop("parse should be either TRUE or FALSE", call. = FALSE) | ||
| } | ||
| if (length(x) > 1) { | ||
| stop("parse should be of length 1", call. = FALSE) | ||
| } | ||
| if (isTRUE(x)) { | ||
| stop("Parsing for the rtweet API v2 is not yet implemented", call. = FALSE) | ||
| } | ||
| } | ||
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| l_minus <- function(l, minus) { | ||
| keep <- setdiff(names(l), minus) | ||
| l[keep] | ||
| } | ||
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| # Handle the response and give attributes | ||
| resp <- function(obj, type = "json", ...) { | ||
| out <- switch(type, | ||
| "json" = httr2::resp_body_json(obj, ...), | ||
| "html" = httr2::resp_body_html(obj, ...), | ||
| "xml" = httr2::resp_body_xml(obj, ...)) | ||
| class(out) <- c("Twitter_resp", class(out)) | ||
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| if (has_name_(out, "meta")) { | ||
| meta <- data.frame(sent = strptime(out$meta$sent, tz = "UTC", | ||
| format = "%Y-%m-%dT%H:%M:%OS")) | ||
| if (has_name_(out$meta, "summary")) { | ||
| meta <- cbind(meta, list2DF(out$meta$summary)) | ||
| } | ||
| rest <- list2DF(l_minus(out$meta, c("summary", "sent"))) | ||
| if (ncol(rest) >= 1 && nrow(rest) == 1) { | ||
| meta <- cbind(meta, rest) | ||
| } else if (nrow(rest) > 1) { | ||
| stop("Please check") | ||
| } | ||
| out$meta <- meta | ||
| } | ||
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| if (has_name_(out, "errors")) { | ||
| out$errors <- do.call(rbind, lapply(out$errors, list2DF)) | ||
| } | ||
| out | ||
| } | ||
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