对 API 的 Python 发布请求

问题描述

我是初学者，在运行代码以从 API 端点提取数据时遇到 422 错误。我在谷歌上搜索了代码并意识到它是一个（不可处理的实体）状态代码，但我不知道如何修复它。

API 文档就在这里：https://github.com/fedspendingtransparency/usaspending-api/blob/master/usaspending_api/api_contracts/contracts/v2/search/spending_by_award.md

谁能告诉我如何修改我的代码？

import requests

url = "https://api.usaspending.gov"
endpoint = "/api/v2/search/spending_by_award"
criteria = {
    "filters": {
       "award_type_codes": ["10"],"agencies": [
            {
                 "type": "awarding","tier": "toptier","name": "Social Security Administration"
            },{
                 "type": "awarding","tier": "subtier","name": "Social Security Administration"
            }
       ],"legal_entities": [779928],"recipient_scope": "domestic","recipient_locations": [650597],"recipient_type_names": ["Individual"],"place_of_performance_scope": "domestic","place_of_performance_locations": [60323],"award_amounts": [
              {
                  "lower_bound": 1500000.00,"upper_bound": 1600000.00
              }
       ],"award_ids": [1018950]
    },"fields": ["Award ID","Recipient Name","Start Date","End Date","Award Amount","Awarding Agency","Awarding Sub Agency","Award Type","Funding Agency","Funding Sub Agency"],"sort": "Recipient Name","order": "desc"
}

response = requests.post(f"{url}{endpoint}",params=criteria)

print(response.status_code)

解决方法

您可以修改多个字段的数据类型，即award_ids应该是array[string]，recipient_locations由array[LocationObject]组成

对于一个工作示例：

import requests
import json

url = "https://api.usaspending.gov/api/v2/search/spending_by_award"

payload = json.dumps({
  "filters": {
    "award_type_codes": [
      "10"
    ],"agencies": [
      {
        "type": "awarding","tier": "toptier","name": "Social Security Administration"
      },{
        "type": "awarding","tier": "subtier","name": "Social Security Administration"
      }
    ],"legal_entities": [
      779928
    ],"recipient_scope": "domestic","recipient_type_names": [
      "Individual"
    ],"place_of_performance_scope": "domestic","award_amounts": [
      {
        "lower_bound": 1500000,"upper_bound": 1600000
      }
    ],"award_ids": [
      "1018950"
    ]
  },"fields": [
    "Award ID","Recipient Name","Start Date","End Date","Award Amount","Awarding Agency","Awarding Sub Agency","Award Type","Funding Agency","Funding Sub Agency"
  ],"sort": "Recipient Name","order": "desc"
})
headers = {
  'Content-Type': 'application/json','Cookie': 'cookiesession1=678A3E0DCDEFGHIJKLNOPQRSTUV08936'
}

response = requests.request("POST",url,headers=headers,data=payload)

print(response.text)

print(response.status_code)

结果：

{
    "limit": 10,"results": [],"page_metadata": {
        "page": 1,"hasNext": false,"last_record_unique_id": null,"last_record_sort_value": "None"
    },"messages": [
        [
            "For searches,time period start and end dates are currently limited to an earliest date of 2007-10-01.  For data going back to 2000-10-01,use either the Custom Award Download feature on the website or one of our download or bulk_download API endpoints as listed on https://api.usaspending.gov/docs/endpoints."
        ]
    ]
}