har-validator
Advanced tools
The har-validator npm package is a library designed to validate HTTP Archive (HAR) files. HAR files are JSON-formatted archives that track all the logging of a web browser's interaction with a site. This package ensures that HAR files adhere to the specification and structure expected, making it useful for developers working with web performance and debugging, API testing, and network monitoring.
HAR file validation
This feature allows developers to validate HAR files against the HAR format specification. The code sample demonstrates how to use the har-validator package to validate a HAR file. If the file is valid, it logs a success message; otherwise, it catches and logs the validation error.
const HARValidator = require('har-validator');
async function validateHAR(harData) {
try {
const valid = await HARValidator.har(harData);
console.log('HAR is valid:', valid);
} catch (err) {
console.error('HAR validation error:', err.message);
}
}Ajv is a fast JSON schema validator. While not specifically designed for HAR files, it can be used to validate any JSON structure against a schema, making it a versatile alternative for general JSON validation tasks. Compared to har-validator, Ajv requires you to define or have access to the JSON schema, offering more flexibility at the cost of requiring more setup for HAR validation.
Tiny Validator (tv4) is another JSON schema validator that supports asynchronous validation and v4 of the JSON Schema standard. Similar to Ajv, it can be used for validating various JSON formats, including HAR files, if the appropriate schema is provided. It's a bit simpler and smaller than Ajv, making it a good choice for projects with less complex validation needs or tighter size constraints.
Extremely fast HTTP Archive (HAR) validator using JSON Schema.
# to use in cli
npm install --global har-validator
# to use as a module
npm install --save har-validator
Usage: har-validator [options] <files ...>
Options:
-h, --help output usage information
-V, --version output the version number
-s, --schema [name] validate schema name (log, request, response, etc ...)
har-validator har.json
har-validator --schema request request.json
Note: as of v2.0.0 this module defaults to Promise based API. For backward comptability with v1.x an async/callback API is provided
Returns a promise that resolves to the valid object.
Object (Required)
a full HAR objectvalidate(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a log objectvalidate.log(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a cache objectvalidate.cache(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a "beforeRequest" or "afterRequest" objectsvalidate.cacheEntry(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a content objectvalidate.content(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a cookie objectvalidate.cookie(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a creator objectvalidate.creator(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
an entry objectvalidate.entry(data)
.then(data => console.log('horray!'))
.catch(console.error)
alias of Validate(data)
Returns a promise that resolves to the valid object.
Object (Required)
a page objectvalidate.page(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a pageTimings objectvalidate.pageTimings(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a postData objectvalidate.postData(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a record objectvalidate.record(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a request objectvalidate.request(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a response objectvalidate.cacheEntry(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns a promise that resolves to the valid object.
Object (Required)
a timings objectvalidate.timings(data)
.then(data => console.log('horray!'))
.catch(console.error)
Returns
trueorfalse.
var HAR = require('./har.json');
var validate = require('har-validator/lib/async');
validate(HAR, function (e, valid) {
if (e) console.log(e.errors)
if (valid) console.log('horray!');
});
The async API provides exactly the same methods as the Promise API
Donations are welcome to help support the continuous development of this project.
FAQs
Extremely fast HTTP Archive (HAR) validator using JSON Schema
The npm package har-validator receives a total of 12,113,095 weekly downloads. As such, har-validator popularity was classified as popular.
We found that har-validator demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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