更新:下面是显示如何获取访问令牌的代码。我还在这里使用免费的测试api(不需要信用卡)。
测试的第一个api调用。应用程序编程接口。阿马迪斯。显示com/v2/shopping/flight优惠。
这是我不知道如何格式化test.api.amadeus.com/v1/shopping/flight-offers/pricingapi的第二个api调用。
我的问题仍然是,使用R调用第二个API的正确方法是什么?
R脚本
library("tidyverse")
library("httr")
library("rjson")
amadeus_api_key_prod <- Sys.getenv("AMADEUS_API_KEY")
amadeus_api_secret_prod <- Sys.getenv("AMADEUS_SECRET")
# Initialize variables
tmp_origin <- NULL
tmp_dest <- NULL
tmp_avg_total_fare <- NULL
# Get Token
response <- POST("https://test.api.amadeus.com/v1/security/oauth2/token",
add_headers("Content-Type" = "application/x-www-form-urlencoded"),
body = list(
"grant_type" = "client_credentials",
"client_id" = amadeus_api_key_prod,
"client_secret" = amadeus_api_secret_prod),
encode = "form")
response
rsp_content <- content(response, as = "parsed", type = "application/json")
access_token <- paste0("Bearer ", rsp_content$access_token)
origin <- "JFK"
dest <- "LHR"
dep_date <- "2021-12-01"
return_date <- "2021-12-18"
max_num_flights <- 1
url <- paste0("https://test.api.amadeus.com/v2/shopping/flight-offers?originLocationCode=",
origin,
"&destinationLocationCode=",
dest,
"&departureDate=",
dep_date,
"&returnDate=",
return_date,
"&max=",
max_num_flights,
"&adults=1&nonStop=false&travelClass=ECONOMY&max=1¤cyCode=CAD")
# Get flight info
response <- GET(url,
add_headers("Content-Type" = "application/x-www-form-urlencoded",
"Authorization" = access_token),
encode = "form")
response
rsp_content <- content(response, as = "parsed", type = "application/json")
rsp_content
# Get current, more detailed flight info
# This is the part I do not know how to do
url2 <- "https://test.api.amadeus.com/v1/shopping/flight-offers/pricing"
flt_info <- toJSON(rsp_content[["data"]])
response2 <- GET(url2,
add_headers("Authorization" = access_token),
body = list(
"priceFlightOffersBody" = flt_info
),
encode = "form")
response2
rsp_content2 <- content(response2, as = "parsed", type = "application/json")
rsp_content2
原始问题
我正在使用Amadeus航班信息api来检索航班价格。我的理解是要获得完整的价格信息需要两个步骤。
我可以成功地执行第一个api调用,包括起点、目的地、日期等。第二个调用确认定价仍然可用,并且比第一个api调用有更详细的票价明细。我最感兴趣的就是这个详细的分类。
我很难理解从第一个api调用返回的信息需要传递给第二个api调用,以及以什么格式传递。
下面,我包含了从第一个api调用返回的数据结构以及我调用第二个api的失败尝试。
使用R调用第二个API的正确方法是什么?
我认为是相关留档的链接:
# Data structure returned from call to https://api.amadeus.com/v2/shopping/flight-offers
# For YYZ to YOW return, Dec 1-18 economy
rsp_content <- list(meta = list(count = 1L, links = list(self = "https://api.amadeus.com/v2/shopping/flight-offers?originLocationCode=YYZ&destinationLocationCode=YOW&departureDate=2021-12-01&returnDate=2021-12-18&max=1&adults=1&nonStop=false&travelClass=ECONOMY&max=1¤cyCode=CAD")),
data = list(list(type = "flight-offer", id = "1", source = "GDS",
instantTicketingRequired = FALSE, nonHomogeneous = FALSE,
oneWay = FALSE, lastTicketingDate = "2021-08-07", numberOfBookableSeats = 7L,
itineraries = list(list(duration = "PT1H10M", segments = list(
list(departure = list(iataCode = "YYZ", terminal = "3",
at = "2021-12-01T11:00:00"), arrival = list(iataCode = "YOW",
at = "2021-12-01T12:10:00"), carrierCode = "WS",
number = "3462", aircraft = list(code = "DH4"),
duration = "PT1H10M", id = "1", numberOfStops = 0L,
blacklistedInEU = FALSE))), list(duration = "PT1H21M",
segments = list(list(departure = list(iataCode = "YOW",
at = "2021-12-18T10:45:00"), arrival = list(iataCode = "YYZ",
terminal = "3", at = "2021-12-18T12:06:00"),
carrierCode = "WS", number = "3463", aircraft = list(
code = "DH4"), duration = "PT1H21M", id = "2",
numberOfStops = 0L, blacklistedInEU = FALSE)))),
price = list(currency = "CAD", total = "232.78", base = "125.00",
fees = list(list(amount = "0.00", type = "SUPPLIER"),
list(amount = "0.00", type = "TICKETING")), grandTotal = "232.78"),
pricingOptions = list(fareType = list("PUBLISHED"), includedCheckedBagsOnly = FALSE),
validatingAirlineCodes = list("WS"), travelerPricings = list(
list(travelerId = "1", fareOption = "STANDARD", travelerType = "ADULT",
price = list(currency = "CAD", total = "232.78",
base = "125.00"), fareDetailsBySegment = list(
list(segmentId = "1", cabin = "ECONOMY", fareBasis = "LAVD0TBJ",
brandedFare = "BASIC", class = "E", includedCheckedBags = list(
quantity = 0L)), list(segmentId = "2",
cabin = "ECONOMY", fareBasis = "LAVD0ZBI",
brandedFare = "BASIC", class = "E", includedCheckedBags = list(
quantity = 0L))))))), dictionaries = list(
locations = list(YOW = list(cityCode = "YOW", countryCode = "CA"),
YYZ = list(cityCode = "YTO", countryCode = "CA")),
aircraft = list(DH4 = "DE HAVILLAND DHC-8 400 SERIES"),
currencies = list(CAD = "CANADIAN DOLLAR"), carriers = list(
WS = "WESTJET")))
# Get full pricing info
url2 <- "https://api.amadeus.com/v1/shopping/flight-offers/pricing"
# Get pricing info
response2 <- GET(url2,
add_headers("Authorization" = access_token),
body = list(
"priceFlightOffersBody" = rsp_content[["data"]][[1]]
),
encode = "form")
response2
rsp_content2 <- content(response2, as = "parsed", type = "application/json")
rsp_content2
对于第二个请求,它似乎适用于以下内容。
变化:
url2 <- "https://test.api.amadeus.com/v1/shopping/flight-offers/pricing"
flt_info <- list(data = list(type = "flight-offers-pricing",
flightOffers = rsp_content$data))
response2 <- POST(url2,
add_headers(Authorization = access_token),
body = flt_info,
encode = "json")
rsp_content2 <- content(response2, as = "parsed", type = "application/json")
rsp_content2
你可以看看这篇博客文章,它解释了数据需要如何在3个endpoint之间传递,它有一个视频在Postman上显示。
您可以检查Amadeus for Developers团队构建的一些代码示例。这里是航班报价价格(使用不同的编程语言,但不是R),这里是航班创建订单(包括之前的搜索和价格步骤)。
他们还有几个演示应用程序,向您展示如何结合这些endpoint来构建航班预订引擎,您可以在此处找到其中一个Python引擎。
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