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How to use the safeLoad function from js-yaml

Find comprehensive JavaScript js-yaml.safeLoad code examples handpicked from public code repositorys.

js-yaml.safeLoad is a function in the js-yaml library that loads a YAML string and returns its corresponding JavaScript object in a safe and secure manner.

data-packages.js

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describe("verify other YAML files", function () {
  const files = ["backers.yml", "blocked-scopes.yml", "builtin.yml", "sponsors.yml", "topics.yml"];
  for (const file of files) {
    let absPath = path.resolve(dataDir, file);
    it("verify " + file, function() {
      const result = yaml.safeLoad(fs.readFileSync(absPath, "utf8"));
      result.should.not.be.undefined();
    });
  }
});

571

+ 3 other calls in file

ping.ts

GitHub: artilleryio/artillery

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  return result;
}

let result;
try {
  result = YAML.safeLoad(str);
  debug('parse: YAML:', str, result);
} catch (parseErr) {
  throw parseErr;
}

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How does js-yaml.safeLoad work?

js-yaml.safeLoad is a function in the js-yaml library that loads a YAML string and returns its corresponding JavaScript object in a safe and secure manner. When you call js-yaml.safeLoad, the function first checks if the YAML string contains any malicious code or constructs that could cause security issues. If the YAML string is safe, js-yaml.safeLoad parses the string and returns its corresponding JavaScript object. If the YAML string is not safe, js-yaml.safeLoad throws an error to prevent the execution of any potentially harmful code. Here's an implementation of js-yaml.safeLoad to illustrate how it works: javascript Copy code {{{{{{{ const jsyaml = require('js-yaml'); jsyaml.safeLoad = (str, options) => { try { const parsed = jsyaml.load(str, options); if (parsed === null || typeof parsed === 'object') { return parsed; } else { throw new Error('Unsafe YAML type'); } } catch (error) { throw new Error(`Safe load error: ${error.message}`); } }; In this implementation, we extend the js-yaml library by adding a new method called safeLoad using jsyaml.safeLoad = (str, options) => {...}. The safeLoad method takes a YAML string as its first argument and an optional options object as its second argument. We then try to parse the YAML string using jsyaml.load(str, options). If the YAML string is safe, js-yaml.safeLoad checks if the parsed object is either null or an object using if (parsed === null || typeof parsed === 'object'). If the parsed object is null or an object, js-yaml.safeLoad returns it. If the parsed object is not null or an object, js-yaml.safeLoad throws an error to prevent the execution of any potentially harmful code. If an error occurs during parsing, js-yaml.safeLoad throws an error with the message Safe load error: ${error.message} to indicate that an error occurred during a safe load. Overall, js-yaml.safeLoad is a useful function in the js-yaml library that allows you to load YAML strings in a safe and secure manner.

build-preview-pages.js

GitHub: starknet-edu/starknetbook

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        .on('error', done)
        .pipe(sink())
    )


function loadSampleUiModel (src) {
  return fs.readFile(ospath.join(src, 'ui-model.yml'), 'utf8').then((contents) => yaml.safeLoad(contents))
}


function registerPartials (src) {
  return vfs.src('partials/*.hbs', { base: src, cwd: src }).pipe(

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rts.js

GitHub: lando/cli

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 */
exports.loadFile = file => {
  // if the file doesnt exist then return an empty object
  if (!fs.existsSync(file)) return {};
  // otherwise load the file and return it
  return yaml.safeLoad(fs.readFileSync(file));
};


/*
 * Uses _.mergeWith to concat arrays, this helps replicate how Docker Compose

+ 21 other calls in file

Ai Example

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const jsyaml = require("js-yaml");

const yamlString = `
name: John
age: 30
address:
street: 123 Main St
city: Anytown
state: CA
`;

const data = jsyaml.safeLoad(yamlString);

console.log(data);
// Output: { name: 'John', age: 30, address: { street: '123 Main St', city: 'Anytown', state: 'CA' } }

In this example, we first require the js-yaml library using const jsyaml = require('js-yaml'). We then define a YAML string called yamlString that contains some key-value pairs and nested objects. We then call jsyaml.safeLoad(yamlString) to parse the YAML string and return its corresponding JavaScript object. Since the YAML string is safe, js-yaml.safeLoad returns the JavaScript object that represents the YAML string. Finally, we log the data variable to the console, which outputs the JavaScript object: css Copy code

cli.js

GitHub: floranpagliai/changelogkyper

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function getUnreleasedChangelogs(files) {
    let release = {};
    files.forEach(function (file) {
        if (file !== 'config.json') {
            let fileContents = fs.readFileSync(changelogPath + '/' + file, 'utf8');
            let data = yaml.safeLoad(fileContents);
            if (typeof release[data['type']] === 'undefined') {
                release[data['type']] = [];
            }

+ 4 other calls in file

worker-yaml.js

GitHub: davedawkins/sutil-oxide

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function lint(content, opts, cb) {


  var options = merge({}, DEFAULT_LINT_OPTION, opts);
  try {
    yaml.safeLoad(content, {
      schema: yaml[options.schema]
    });
    cb();
  } catch (e) {

task-utils.js

GitHub: bahmutov/cypress-code-coverage

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const nycrcYamlFilename = join(workingDirectory, '.nycrc.yaml')
let nycrcYaml = {}
if (existsSync(nycrcYamlFilename)) {
  try {
    nycrcYaml = yaml.safeLoad(readFileSync(nycrcYamlFilename, 'utf8'))
  } catch (error) {
    throw new Error(`Failed to load .nycrc.yaml: ${error.message}`)
  }
}

+ 9 other calls in file

utils.js

GitHub: keg-hub/keg-cli

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it(`should return a filled template as a string when format is 'string'`, () => {
  const data = { test: { array: ['item3'], key: 'item3', value: '3' } }
  const filled = loadTemplate(
    { data, format: 'string' },
    utilValues.ymlStr,
    yaml.safeLoad
  )
  expect(typeof filled).toEqual('string')
  expect(filled.includes('- item3')).toBe(true)
  expect(filled.includes('item3: 3')).toBe(true)

+ 3 other calls in file

test.js

GitHub: umbono/rain

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const yaml = require('js-yaml');
const fs = require('fs');
let config = {};
var rootKey;
try {
    config = yaml.safeLoad(fs.readFileSync('./drops/test.yaml', 'utf8'));
    console.log(config);
    for(var prop in config) {
    	 console.log( prop ); //will give "services"
    	 rootKey = prop;

cpListener.js

GitHub: bala-45-go/fabric-samples

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const gateway = new Gateway();

const userName = 'isabella';

// Load connection profile; will be used to locate a gateway
let connectionProfile = yaml.safeLoad(fs.readFileSync('../gateway/connection-org2.yaml', 'utf8'));

// Set connection options; identity and wallet
let connectionOptions = {
    identity: userName,

import.js

GitHub: Rst-Organization/s.ikeda

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  return console.log(err);
}

// Turn string from file to an Array
if (fileName.endsWith('yaml') || fileName.endsWith('yml')) {
  dataArray = YAML.safeLoad(data);
} else {
  dataArray = JSON.parse(data);
}

+ 4 other calls in file

config.js

GitHub: OdionAkhes/van-life

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    if (Array.isArray(defaults.plugins)) {
        defaults.plugins = preparePluginsArray(config, defaults.plugins);
    }
} else {
    defaults = Object.assign({}, yaml.safeLoad(FS.readFileSync(__dirname + '/../../.svgo.yml', 'utf8')));
    defaults.plugins = preparePluginsArray(config, defaults.plugins || []);
    defaults = extendConfig(defaults, config);
}

+ 3 other calls in file

i18n.js

GitHub: tomasjin356/web-dev-tomas

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      if (stat && stat.isDirectory()) {
        /* Recurse into a subdirectory */
        results[name] = walk(file);
      } else {
        /* Is a file */
        results[name] = yaml.safeLoad(fs.readFileSync(file, 'utf-8'));
      }
    });
  return results;
};

+ 4 other calls in file

setyaml.js

GitHub: tomekwlod/tomekwlod.github.io

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  if (typeof value !== "string") {
    throw new Error(`value is not a string`);
  }

  value = yaml.safeLoad(value);
} catch (e) {
  throw new Error(`${__filename} yaml parse error: ${e}`);
}

+ 15 other calls in file

getyaml.js

GitHub: tomekwlod/tomekwlod.github.io

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  ind[i].v += yml[k] + "\n";
}

for (let i = 0, l = ind.length; i < l; i += 1) {
  ind[i].v = yaml.safeLoad(ind[i].v);
}

return {
  ind,

+ 7 other calls in file

get.js

GitHub: tomekwlod/tomekwlod.github.io

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const yaml = require("js-yaml");


let yml = fs.readFileSync(file, "utf8").toString();


yml = yaml.safeLoad(yml);


const ret = get(yml, key);


if (isObject(ret) || isArray(ret)) {

+ 7 other calls in file

collection.js

GitHub: MobiDataLab/mdl-catalog-deployment

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const util = require('./util');
const specSources = require('./spec_sources');
const sp = require('./sortParameters.js');
var httpCache;
try {
  httpCache = YAML.safeLoad(fs.readFileSync(pathLib.join(__dirname,'../metadata/httpCache.yaml'),'utf8'));
}
catch (ex) {
  console.log(ex.message);
  httpCache = { cache: [] };

+ 14 other calls in file

util.js

GitHub: MobiDataLab/mdl-catalog-deployment

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exports.readYaml = function (filename) {
  if (!fs.existsSync(filename))
    return;


  var data = fs.readFileSync(filename, 'utf-8');
  return YAML.safeLoad(data, {filename: filename, schema:YAML.JSON_SCHEMA});
}


exports.readJson = function (filename) {
  if (!fs.existsSync(filename))

+ 2 other calls in file

expressServer.js

GitHub: memodo/openapi

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constructor(port, openApiYaml) {
  this.port = port;
  this.app = express();
  this.openApiPath = openApiYaml;
  try {
    this.schema = jsYaml.safeLoad(fs.readFileSync(openApiYaml));
  } catch (e) {
    logger.error('failed to start Express Server', e.message);
  }
  this.setupMiddleware();

prose

GitHub: KLIMCIK32/symmetrical-guide

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var glob = require('glob');
var fs = require('fs');
var path = require('path');
var async = require('async');
var yaml = require('js-yaml');
var jekyllConfig = yaml.safeLoad(fs.readFileSync('_config.yml'));
var ignore = require('ignore')().add(jekyllConfig.exclude)


var personal = fs
  .readFileSync(path.join(__dirname, 'dictionary.txt'), 'utf8')

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