Warning: Unhandled promise rejection detected

Question

Warning: Unhandled promise rejection detected

I'm encountering an issue with Promise.reject

A warning message pops up: Unhandled promise rejection warning - version 1.1 is not released

How should I go about resolving this warning?

Your assistance is greatly appreciated

public async retrieveVersionFromJira(versionName: string): Promise<ReleaseVersion> {
        const searchVersionsUri = config.jiraApiUri + 'versions';
        const jsonResp = await this.jiraClient.get(searchVersionsUri);
        const version: any = jsonResp.find(version => {
            if (version.name == versionName) {
                if (version.released == true) {
                    return Promise.reject("version " + versionName + " is not released");
                }
            }
        });
        if (!version) {
            return Promise.reject("missing version " + versionName + " on jira");
        }
        return new ReleaseVersion(version.id, version.name, version.released);
    }

javascript typescript unhandled

Answer 1

Answer №1

In order to properly handle errors when calling your function, you should utilize a try/catch block for async/await implementation or a .catch() handler for Promise usage:

try {
  const result = await getVersionFromDatabase('1.1');
} catch (err) {
  console.error(err);
}

// Alternatively
getVersionFromDatabase('1.1').catch(console.error);

Answer 2

In order to properly handle errors when calling your function, you should utilize a try/catch block for async/await implementation or a .catch() handler for Promise usage:

try {
  const result = await getVersionFromDatabase('1.1');
} catch (err) {
  console.error(err);
}

// Alternatively
getVersionFromDatabase('1.1').catch(console.error);

Answer 3

Answer №2

If you use this function anywhere in your code, make sure to include a .catch within the promise chain or a try / catch block around

await retrieveVersionFromJira(...)

when working in an async context.

In cases where the promise is rejected and there is no error handling mechanism in place, the rejection is simply ignored by your code and execution continues. This can lead to runtime warnings being issued.

Answer 4

If you use this function anywhere in your code, make sure to include a .catch within the promise chain or a try / catch block around

await retrieveVersionFromJira(...)

when working in an async context.

In cases where the promise is rejected and there is no error handling mechanism in place, the rejection is simply ignored by your code and execution continues. This can lead to runtime warnings being issued.

Warning: Unhandled promise rejection detected

Answer №1

Answer №2

Similar questions

unable to display images from a folder using v-for in Vue.js

Establish initial content for the specified div area

What is the best way to conceal a row when a particular field is devoid of content?

Identify data points on the line chart that fall outside the specified range with ng2-charts

Using TypeScript to import npm modules that are scoped but do not have the scope name included

Any suggestions for solving the issue of breaking the line at the end of a <td> within a <table> element using jQuery or JavaScript?

Retrieve the URI data from the response object using Axios

Error: Incorrect data type found in React Route component

Determine whether the function name in a given string matches a JavaScript or PHP

Attempting to create a login feature using phpMyAdmin in Ionic framework

Using JSON in Highcharts: Customizing Border and Label Colors

Encountering NaN in the DOM while attempting to interpolate values from an array using ngFor

JavaScript library designed for efficient asynchronous communication with servers

Test your word skills with the Jumbled Words Game. Receive an alert when

Anticipate the desired operations and propose appropriate function identifiers within a generalized class framework

The use of url.resolve() function with greater than two arguments

Steps to solve React error message: "Warning: Every child in a list should have a distinct 'key' prop"

What is the most efficient method for transforming an index into a column number that resembles that of Excel using a functional approach?

Retrieve the property values of `T` using a string key through the `in

Creating a webpage with a left panel and draggable elements using JavaScript/jQuery