{“error_description”：“Invalid Client Id”，“error”：“Invalid_Client”}用于邮递员。如何使用REST API | Blackboard连接到Collab技术预览

Question

我想和Postman一起做一个RESTAPI测试

我需要遵循的步骤写在

https://github.com/blackboard/BBDN-Collab-Postman-REST

及

https://www.youtube.com/watch?v=-mdRZ_1-Dzg&ab_channel=BbDevSupport

我可以一步一步地从这个地址的视频中了解我需要做什么

我得到这个错误，即使我已经按照所有的步骤

{
    "error_description": "Invalid Client Id",
    "error": "invalid_client"
} 

我确信我要测试的URL、api密钥和密码是正确的，因为当我用代码尝试它时，它是有效的

我有下面的test.py代码，当我运行这段代码时，我得到了图片中的输出

# Before run this py install requirements.txt

import json
import requests
import time
import jwt
import datetime
from dateutil import tz
import ssl
import sys
import os

key = "Your Key"
secret = "Your Secret"
url = "https://eu-lti.bbcollab.com/collab/api/csa"

headers = {
    'typ' : 'JWT',
    'alg': "RS256"     
}

claims = {
    "iss" : key,
    "sub" : key,
    "exp" : datetime.datetime.utcnow() + datetime.timedelta(minutes = 5) 
}

assertion = jwt.encode(claims, secret)

payload = {
    'grant_type': 'urn:ietf:params:oauth:grant-type:jwt-bearer',
    'assertion' : assertion
}

print(assertion)

token_endpoint = url + '/token'
r = requests.post(token_endpoint, data=payload, auth=(key, secret), verify=True)


print("[auth:setToken()] STATUS CODE: " + str(r.status_code) )
#strip quotes from result for better dumps
res = json.loads(r.text)
print("[auth:setToken()] RESPONSE: \n" + json.dumps(res,indent=4, separators=(',', ': ')))

token = ""

if r.status_code == 200:
    parsed_json = json.loads(r.text)
    token = parsed_json['access_token']
else:
    print("can not get token")
    exit()


def getRecordings(url, token, limit, offset):
    authStr = 'Bearer ' + token
            
    payload = {
        'limit' : limit,
        'offset': offset
    }

    args = "&".join(["%s=%s"%(k,v) for k,v in payload.items()])

    r = requests.get(url + '/recordings?' + args, headers={ 'Authorization':authStr,'Content-Type':'application/json','Accept':'application/json' }, json=payload, verify=True)
            
    if r.status_code == 200:
        res = json.loads(r.text)
        #print("Recording: " + json.dumps(res,indent=4, separators=(',', ': ')))
        return res
    else:
        return None

def getRecordingUrl(url, token, id):
    authStr = 'Bearer ' + token
    r = requests.get(url + '/recordings/' + id + "/url?disposition=download", headers={ 'Authorization':authStr,'Content-Type':'application/json','Accept':'application/json'}, verify=True)
        
    if r.status_code == 200:
        res = json.loads(r.text)
        return res["url"]
    else:
        return None


records = getRecordings(url, token, 10, 0)


for rec in records["results"]:
    id = rec["id"]

    rec_url = getRecordingUrl(url, token, id)

    if not os.path.exists("./recordings"):
        os.makedirs("./recordings")

    if rec_url:
        name = "./recordings/" + rec["name"] + ".mp4"
        print ("Downloading -> %s" % (name))
        r = requests.get(rec_url, allow_redirects=True)
        with open(name, 'wb') as f:
            f.write(r.content)

test.py的输出

我的主要目标是下载黑板协作中的记录。当我想和邮递员一起测试时，我失败了

以前有人遇到过这样的问题吗？ 我怎样才能解决这个问题