Node module for Open Policy Agent https://github.com/open-policy-agent/opa
npm install --save @fnzc/node-open-policy-agent
or
yarn add @fnzc/node-open-policy-agent
See Functions section for a list of the provided functions.
All functions can be called using a callback but they also return a promise.
Options to provide to the OPA command are represented by an object. Provide an empty string for self-sufficient options (e.g: help).
All functions come with a help option that you can print to see the specific usage.
const {parse} = require('@fnzc/node-open-policy-agent');
parse({help: ''}, res => console.log('Res: ', res))
const helpRes = async () {
const res = await parse({help: ''});
console.log(res);
}
helpRes()
You can also use the test/test.js file provided in the package to see basic usage of all the functions.
Basic usage:
const {evalQueryBoolean} = require('@fnzc/node-open-policy-agent');
evalQueryBoolean(
{data: 'test/example.rego', input: 'test/data.json', package: 'opa.example'},
res => console.log('Res: ', res)
)
const evalRes = async () {
const res = await evalQueryBoolean({data: 'test/example.rego', input: 'test/data.json', package: 'opa.example'});
console.log(res);
}
evalRes()
| Name | Description | Options | OPA equivalent |
|---|---|---|---|
build |
Compile a Rego policy query into an executable for enforcement. | data: set data file(s) or directory path(s), debug: enable debug output, help: help for build, ignore: set file and directory names to ignore during loading (e.g., '.*' excludes hidden files), output: set the filename of the compiled policy (default "policy.wasm") |
opa build |
check |
Check Rego source files for parse and compilation errors. | format: {pretty,json} set output format (default pretty), help: help for check, ignore: set file and directory names to ignore during loading (e.g., '.*' excludes hidden files), max-errors: set the number of errors to allow before compilation fails early (default 10) |
opa check |
deps |
Analyze Rego query dependencies. | data: set data file(s) or directory path(s), format: {pretty,json} set output format (default pretty), help: help for deps, ignore: set file and directory names to ignore during loading (e.g., '.*' excludes hidden files) |
opa deps |
evalQuery |
Evaluate a Rego query and print the result. | coverage: report coverage, data: set data file(s) or directory path(s), explain: enable query explainations, fail: exits with non-zero exit code on undefined result and errors, format: {json,values,bindings,pretty} set output format (default json), help: help for eval, ignore: set file and directory names to ignore during loading (e.g., '.*' excludes hidden files), import: set query import(s), input: set input file path, metrics: report query performance metrics, package: set query package, partial: perform partial evaluation, pretty-limit: set limit after which pretty output gets truncated (default 80), profile: perform expression profiling, profile-limit: set number of profiling results to show (default 10), profile-sort: set sort order of expression profiler results, stdin: read query from stdin, stdin-input: read input document from stdin, unknowns`: set paths to treat as unknown during partial evaluation (default [input]) |
opa eval |
evalQueryBoolean |
Evaluate a Rego query and print the result. | coverage: report coverage, data: set data file(s) or directory path(s), explain: enable query explainations, fail: exits with non-zero exit code on undefined result and errors, format: {json,values,bindings,pretty} set output format (default json), help: help for eval, ignore: set file and directory names to ignore during loading (e.g., '.*' excludes hidden files), import: set query import(s), input: set input file path, metrics: report query performance metrics, package: set query package, partial: perform partial evaluation, pretty-limit: set limit after which pretty output gets truncated (default 80), profile: perform expression profiling, profile-limit: set number of profiling results to show (default 10), profile-sort: set sort order of expression profiler results, stdin: read query from stdin, stdin-input: read input document from stdin, unknowns`: set paths to treat as unknown during partial evaluation (default [input]) |
opa eval "data.[package].allow" |
fmt |
Format Rego source files. | diff: only display a diff of the changes, help: help for fmt, list: list all files who would change when formatted, write: overwrite the original source file |
opa fmt |
help |
Help provides help for any command in the application. | help: help for help |
opa help |
parse |
Parse Rego source file and print AST. | format: {pretty,json} set output format (default pretty), help: help for parse |
opa parse |
testRego |
Execute Rego test cases. | coverage: report coverage (overrides debug tracing), format: {pretty,json} set output format (default pretty), help: help for test, ignore: set file and directory names to ignore during loading (e.g., '.*' excludes hidden files), max-errors: set the number of errors to allow before compilation fails early (default 10), show-failure-line: show test failure line, threshold: set coverage threshold and exit with non-zero status if coverage is less than threshold %, timeout: set test timeout (default 5s), verbose: set verbose reporting mode |
opa test |
version |
Show version and build information for OPA. | help: help for version |
opa version |
Pull requests are welcome.