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github netflix pollyjs record replay and stub http interactions github skip to content navigation menu toggle navigation sign in appearance settings platform ai code creation github copilot write better code with ai github copilot app direct agents from issue to merge mcp registry new integrate external tools developer workflows actions automate any workflow codespaces instant dev environments issues plan and track work code review manage code changes code quality enforce quality at merge application security github advanced security find and fix vulnerabilities code security secure your code as you build secret protection stop leaks before they start explore why github documentation blog changelog marketplace view all features solutions by company size enterprises small and medium teams startups nonprofits by use case app modernization devsecops devops ci cd view all use cases by industry healthcare financial services manufacturing government view all industries view all solutions 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searches use saved searches to filter your results more quickly name query to see all available qualifiers see our documentation cancel create saved search sign in sign up appearance settings resetting focus you signed in with another tab or window reload to refresh your session you signed out in another tab or window reload to refresh your session you switched accounts on another tab or window reload to refresh your session dismiss alert message uh oh there was an error while loading please reload this page netflix pollyjs public notifications you must be signed in to change notification settings fork 356 star 10 3k code issues 44 pull requests 15 actions projects security and quality 0 insights additional navigation options code issues pull requests actions projects security and quality insights netflix pollyjs master branches tags go to file code open more actions menu folders and files name name last commit message last commit date latest commit history 372 commits 372 commits github github husky husky docs docs examples examples packages pollyjs packages pollyjs scripts scripts tests tests commitlintrc js commitlintrc js eslintignore eslintignore eslintrc js eslintrc js gitignore gitignore mocharc js mocharc js prettierrc js prettierrc js travis yml travis yml changelog md changelog md contributing md contributing md license license ossmetadata ossmetadata readme md readme md jest config js jest config js lerna json lerna json package json package json testem js testem js yarn lock yarn lock view all files repository files navigation readme contributing apache 2 0 license more items record replay and stub http interactions polly js is a standalone framework agnostic javascript library that enables recording replaying and stubbing of http interactions by tapping into multiple request apis across both node the browser polly js is able to mock requests and responses with little to no configuration while giving you the ability to take full control of each request with a simple powerful and intuitive api interested in contributing or just seeing polly in action head over to contributing md to learn how to spin up the project why polly keeping fixtures and factories in parity with your apis can be a time consuming process polly alleviates this process by recording and maintaining actual server responses while also staying flexible record your test suite s http interactions and replay them during future test runs for fast deterministic accurate tests use polly s client side server to modify or intercept requests and responses to simulate different application states e g loading error etc features node browser support ️️ simple powerful intuitive api first class mocha qunit test helpers intercept pass through and attach events record to disk or local storage slow down or speed up time getting started check out the quick start documentation to get started usage let s take a look at what an example test case would look like using polly import polly from pollyjs core import xhradapter from pollyjs adapter xhr import fetchadapter from pollyjs adapter fetch import restpersister from pollyjs persister rest register the adapters and persisters we want to use this way all future polly instances can access them by name polly register xhradapter polly register fetchadapter polly register restpersister describe netflix homepage function it should be able to sign in async function create a new polly instance connect polly to both fetch and xhr browser apis by default it will record any requests that it hasn t yet seen while replaying ones it has already recorded const polly new polly sign in adapters xhr fetch persister rest const server polly intercept all google analytic requests and respond with a 200 server get google analytics path intercept req res res sendstatus 200 pass through all get requests to coverage server get coverage passthrough start pseudo test code await visit login await fillin email polly netflix com await fillin password pollyjs await submit end pseudo test code expect location pathname to equal browse calling stop will persist requests as well as disconnect from any connected browser apis e g fetch or xhr await polly stop the above test case would generate the following har file which polly will use to replay the sign in response when the test is rerun log _recordingname sign in browser name chrome version 67 0 creator name polly js version 0 5 0 comment persister rest entries _id 06f06e6d125cbb80896c41786f9a696a _order 0 cache request bodysize 51 cookies headers name content type value application json charset utf 8 headerssize 97 httpversion http 1 1 method post postdata mimetype application json charset utf 8 text email polly netflix com password pollyjs querystring url https netflix com api v1 login response bodysize 0 content mimetype text plain charset utf 8 size 0 cookies headers headerssize 0 httpversion http 1 1 redirecturl status 200 statustext ok starteddatetime 2018 06 29t17 31 55 348z time 11 timings blocked 1 connect 1 dns 1 receive 0 send 0 ssl 1 wait 11 pages version 1 2 prior art the client server api of polly is heavily influenced by the very popular mock server library pretender pretender supports xhr and fetch stubbing and is a great lightweight alternative to polly if your project does not require persisting capabilities or node adapters thank you to all contributors especially the maintainers trek stefanpenner and xg wang contributors license copyright c 2018 netflix inc licensed under the apache license version 2 0 the license you may not use this file except in compliance with the license you may obtain a copy of the license at http www apache org licenses license 2 0 unless required by applicable law or agreed to in writing software distributed under the license is distributed on an as is basis without warranties or conditions of any kind either express or implied see the license for the specific language governing permissions and 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