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135 lines
4.7 KiB
135 lines
4.7 KiB
# http-errors |
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[![NPM Version][npm-image]][npm-url] |
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[![NPM Downloads][downloads-image]][downloads-url] |
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[![Node.js Version][node-version-image]][node-version-url] |
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[![Build Status][travis-image]][travis-url] |
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[![Test Coverage][coveralls-image]][coveralls-url] |
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Create HTTP errors for Express, Koa, Connect, etc. with ease. |
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## Install |
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This is a [Node.js](https://nodejs.org/en/) module available through the |
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[npm registry](https://www.npmjs.com/). Installation is done using the |
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[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally): |
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```bash |
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$ npm install http-errors |
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``` |
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## Example |
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```js |
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var createError = require('http-errors') |
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var express = require('express') |
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var app = express() |
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app.use(function (req, res, next) { |
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if (!req.user) return next(createError(401, 'Please login to view this page.')) |
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next() |
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}) |
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``` |
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## API |
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This is the current API, currently extracted from Koa and subject to change. |
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All errors inherit from JavaScript `Error` and the exported `createError.HttpError`. |
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### Error Properties |
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- `expose` - can be used to signal if `message` should be sent to the client, |
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defaulting to `false` when `status` >= 500 |
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- `headers` - can be an object of header names to values to be sent to the |
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client, defaulting to `undefined`. When defined, the key names should all |
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be lower-cased |
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- `message` - the traditional error message, which should be kept short and all |
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single line |
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- `status` - the status code of the error, mirroring `statusCode` for general |
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compatibility |
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- `statusCode` - the status code of the error, defaulting to `500` |
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### createError([status], [message], [properties]) |
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<!-- eslint-disable no-undef, no-unused-vars --> |
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```js |
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var err = createError(404, 'This video does not exist!') |
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``` |
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- `status: 500` - the status code as a number |
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- `message` - the message of the error, defaulting to node's text for that status code. |
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- `properties` - custom properties to attach to the object |
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### new createError\[code || name\](\[msg]\)) |
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<!-- eslint-disable no-undef, no-unused-vars --> |
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```js |
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var err = new createError.NotFound() |
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``` |
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- `code` - the status code as a number |
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- `name` - the name of the error as a "bumpy case", i.e. `NotFound` or `InternalServerError`. |
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#### List of all constructors |
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|Status Code|Constructor Name | |
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|-----------|-----------------------------| |
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|400 |BadRequest | |
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|401 |Unauthorized | |
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|402 |PaymentRequired | |
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|403 |Forbidden | |
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|404 |NotFound | |
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|405 |MethodNotAllowed | |
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|406 |NotAcceptable | |
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|407 |ProxyAuthenticationRequired | |
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|408 |RequestTimeout | |
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|409 |Conflict | |
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|410 |Gone | |
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|411 |LengthRequired | |
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|412 |PreconditionFailed | |
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|413 |PayloadTooLarge | |
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|414 |URITooLong | |
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|415 |UnsupportedMediaType | |
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|416 |RangeNotSatisfiable | |
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|417 |ExpectationFailed | |
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|418 |ImATeapot | |
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|421 |MisdirectedRequest | |
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|422 |UnprocessableEntity | |
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|423 |Locked | |
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|424 |FailedDependency | |
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|425 |UnorderedCollection | |
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|426 |UpgradeRequired | |
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|428 |PreconditionRequired | |
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|429 |TooManyRequests | |
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|431 |RequestHeaderFieldsTooLarge | |
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|451 |UnavailableForLegalReasons | |
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|500 |InternalServerError | |
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|501 |NotImplemented | |
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|502 |BadGateway | |
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|503 |ServiceUnavailable | |
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|504 |GatewayTimeout | |
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|505 |HTTPVersionNotSupported | |
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|506 |VariantAlsoNegotiates | |
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|507 |InsufficientStorage | |
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|508 |LoopDetected | |
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|509 |BandwidthLimitExceeded | |
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|510 |NotExtended | |
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|511 |NetworkAuthenticationRequired| |
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## License |
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[MIT](LICENSE) |
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[npm-image]: https://img.shields.io/npm/v/http-errors.svg |
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[npm-url]: https://npmjs.org/package/http-errors |
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[node-version-image]: https://img.shields.io/node/v/http-errors.svg |
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[node-version-url]: https://nodejs.org/en/download/ |
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[travis-image]: https://img.shields.io/travis/jshttp/http-errors.svg |
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[travis-url]: https://travis-ci.org/jshttp/http-errors |
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[coveralls-image]: https://img.shields.io/coveralls/jshttp/http-errors.svg |
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[coveralls-url]: https://coveralls.io/r/jshttp/http-errors |
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[downloads-image]: https://img.shields.io/npm/dm/http-errors.svg |
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[downloads-url]: https://npmjs.org/package/http-errors
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