https://stackoverflow.com › questions › 59394620

The fetch(url) returns a Promise object. It allows attaching “listener” to it using .then(…) that can respond to result value (response to the request). The .then(…) returns again Promise object that will give result forward.

https://stackoverflow.com › questions › 54656223

The function given as then parameter will be executed asynchronously (sometime in the future when your server returns a response), but then itself return Promise immediately (in synchronous way) by its definition.

https://stackoverflow.com › questions › 38884522

The then method returns a pending promise which can be resolved asynchronously by the return value of a result handler registered in the call to then, or rejected by throwing an error inside the handler called.

https://developer.mozilla.org › en-US › docs › Learn › JavaScript › Asynchronous › Promises

calling the fetch() API, and assigning the return value to the fetchPromise variable; immediately after, logging the fetchPromise variable. This should output something like: Promise { <state>: "pending" }, telling us that we have a Promise object, and it has a state whose value is "pending".

https://developer.mozilla.org › en-US › docs › Web › API › Fetch_API › Using_Fetch

The fetch() function returns a Promise which is fulfilled with a Response object representing the server's response. You can then check the request status and extract the body of the response in various formats, including text and JSON, by calling the appropriate method on the response.

https://www.javascripttutorial.net › web-apis › javascript-fetch-api

The fetch() returns a Promise that resolves into a Response object. Use the status or ok property of the Response object to check whether the request was successful. Use the json() method of the Response object to parse the contents into JSON data.

https://forum.freecodecamp.org › t › how-to-solve-the-problem-of-promise-pending › 233520

Looks like you are not waiting for your promises to be settled. Try that: let data = await Promise.all(q.map(async item => { let url = ctx.db.execute( `select * from work_flow_pic where flow_id=${item.no}` ); return { create_time: item.create_time, no: item.no, url: await url }; }));

https://developer.mozilla.org › en-US › docs › Web › API › Window › fetch

A fetch() promise only rejects when the request fails, for example, because of a badly-formed request URL or a network error. A fetch() promise does not reject if the server responds with HTTP status codes that indicate errors (404, 504, etc.).