Python

GET

import requests
import json

url = "<YOUR ENDPOINT URL>"


r = requests.post(url, json={
  "options": {
    "method": "GET",
    "headers": {
      "Content-Type": "application/json",
      "Accept": "application/json"
    }
  },
  "url": "/rest/api/3/issue/DEV-78"
}, headers={"apikey":"<YOURTOKEN>"})
print("Status Code: ", r.status_code)
print("Status Code: " r.status_code, "Response: ", r.text)

POST

import requests
import json

endpointURL = "<YOUR ENDPOINT URL>"

r = requests.post(endpointURL, json={
  "options": {
    "method": "POST",
    "headers": {
      "Content-Type": "application/json",
      "Accept": "application/json"
    },
    "body": {
      "fields": {
        "project":{
          #or you can use "id": "<your project id>"
          "name": "<your project name>"
        },
        "summary": "Create Issue via POST.",
        "description": "Creating of an issue via a POST request using the API Key Manager",
        "issuetype": {
          #or you can use "name": "<your issue type name>"
          "id": "<your issue type id>"
        }
      }
    }
  },
  "url": "/rest/api/2/issue"
  }, headers={"apikey": "<YOUR API KEY>"})
jsonResp = r.json()
print("Status Code: ", r.status_code)
print("Status Code: ", r.status_code, "Response: ", json.dumps(jsonResp, indent=2, separators=(',',':')))