Watson Assistant 日志错误“超出速率限制”

Question

I need your help in getting Watson Assistant Logs. I am getting an error “Rate limit exceeded”. According to API docs, we can specify cursor in param. When cursor is specified we can make 120 requests / min. If cursor is not specified then we can make 40 requests / 30min only. I have passed cursor attribute in “param” object as empty string when it first initiates and then I have updated the cursor value to next_cursor value which was returned by Watson (pagination attribute as a token). However, still its making 40 requests and connection gets closed for 30 min. Could you please tell me what I am doing wrong? I am able to retrieve 40 logs in text file. I am using Node JS. I am looking forward to hearing from you.

Below is the small sample function which I have created:

const getLogs = () => {
           const params = {
             workspace_id: '50f6598a-a369-45df-9cfb-20bdfe617066',
             cursor: ""
           }
           service.listLogs(params)
           .then(res => {
             if(res.pagination.next_cursor) {
               fs.writeFile("temp.txt", JSON.stringify(res, null, 2), err => {
                 if (err) console.log(err);
                 console.log("Successfully Written to File.");
               });
               params.cursor = res.pagination.next_cursor;
               getLogs()
             } else {
               console.log('no more logs')
             }
           })
           .catch(err => console.log(JSON.stringify(err, null, 2)));
         }
         getLogs();

{
  "name": "Too Many Requests",
  "code": 429,
  "message": "Rate limit exceeded",
  "body": "{\"error\":\"Rate limit exceeded\",\"code\":429}",
  "headers": {
    "x-backside-transport": "FAIL FAIL",
    "content-type": "application/json; charset=utf-8",
    "access-control-allow-origin": "*",
    "access-control-allow-methods": "GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS",
    "access-control-allow-headers": "Content-Type, Content-Length, Authorization, X-Watson-Authorization-Token, X-WDC-PL-OPT-OUT, X-Watson-UserInfo, X-Watson-Learning-Opt-Out, X-Watson-Metadata",
    "access-control-max-age": "3600",
    "content-security-policy": "default-src 'none'",
    "x-dns-prefetch-control": "off",
    "x-frame-options": "SAMEORIGIN",
    "strict-transport-security": "max-age=31536000;",
    "x-download-options": "noopen",
    "x-content-type-options": "nosniff",
    "x-xss-protection": "1; mode=block",
    "x-ratelimit-limit": "40",
    "x-ratelimit-reset": "1559060571",
    "x-ratelimit-remaining": "0",
    "retry-after": "1143.36",
    "x-global-transaction-id": "7ecac92c5ced5be3440b2991",
    "x-dp-watson-tran-id": "gateway01-1141582225",
    "x-dp-transit-id": "gateway01-1141582225",
    "content-length": "42",
    "x-edgeconnect-midmile-rtt": "256",
    "x-edgeconnect-origin-mex-latency": "210",
    "date": "Tue, 28 May 2019 16:03:47 GMT",
    "connection": "close"
  }
}

Answer 1

I think this may be recursion related and that params.cursor is set to "" at the start of each recursion. What you need to do is to combine recursion with closure. So your code will look something like:

 const getLogs = () => {
   const params = {
        workspace_id: '50f6598a-a369-45df-9cfb-20bdfe617066',
        cursor: ""
    }
   function doGetLogs() {
     service.listLogs(params)
     .then(res => {
        if(res.pagination.next_cursor) {
                ...
                params.cursor = res.pagination.next_cursor;
                doGetLogs()
              } 
              ...
            })
           ...
   }
   return doGetLogs();
 }

 getLogs();