HTTP Request snippet generator for many languages & tools including: cURL, HTTPie, JavaScript, Node, C, Java, PHP, Objective-C, Swift, Python, Ruby, C#, Go, OCaml, Crystal and more!

Relies on the popular HAR format to import data and describe HTTP calls.

See it in action on companion service: APIembed

• HTTPSnippet
  • Quickstart
    • Core Concepts
    • CLI Quickstart
    • TypeScript Library Quickstart
  • CLI Usage
    • CLI Installation
    • Example
  • TypeScript Library Usage
    • Library Installation
    • Types
      • HarRequest
      • HarEntry
      • TargetId
      • ClientId
      • Converter
      • Client
      • ClientInfo
      • Extension
      • TargetInfo
      • Target
    • Library Exports
      • new HTTPSnippet(source: HarRequest | HarEntry)
      • snippet.convert(targetId: string, clientId?: string, options?: T)
      • isTarget
      • addTarget
      • isClient
      • addTargetClient
  • Bugs and feature requests
  • Contributing

1. HTTPSnippet's input is a JSON object that represents an HTTP request in the HAR Request Object format.
2. HTTPSnippet's output is executable code that sends the input HTTP request, in a wide variety of languages and libraries.
3. You provide HTTPSnippet your desired target, client, and options.
   • a target refers to a group of code generators. Generally, a target is a programming language like Rust, Go, C, or OCaml.
   • client refers to a more specific generator within the parent target. For example, the C# target has two available clients, httpclient and restsharp, each referring to a popular C# library for making requests.
   • options are per client and generally control things like specific indent behaviors or other formatting rules.

httpsnippet har.json \ # the path your input file (must be in HAR format) --target shell \ # your desired language --client curl \ # your desired language library --output ./examples \ # an output directory, otherwise will just output to Stdout --options '{"indent": false }'# any client options as a JSON string

import{HTTPSnippet}from'httpsnippet';constsnippet=newHTTPSnippet({method: 'GET',url: 'http://mockbin.com/request',});constoptions={indent: '\t'};constoutput=snippet.convert('shell','curl',options);console.log(output);

npm install --global httpsnippet

yarn global add httpsnippet

httpsnippet [harFilePath] the default command Options: --help Show help [boolean] --version Show version number [boolean] -t, --target target output [string] [required] -c, --client language client [string] -o, --output write output to directory [string] -x, --options provide extra options for the target/client [string] Examples: httpsnippet my_har.json --target rust --client actix --output my_src_directory 

The input to HTTPSnippet is any valid HAR Request Object, or full HAR log format.

{"method": "POST", "url": "http://mockbin.com/har?key=value", "httpVersion": "HTTP/1.1", "queryString": [{"name": "foo", "value": "bar" },{"name": "foo", "value": "baz" },{"name": "baz", "value": "abc" } ], "headers": [{"name": "accept", "value": "application/json" },{"name": "content-type", "value": "application/x-www-form-urlencoded" } ], "cookies": [{"name": "foo", "value": "bar" },{"name": "bar", "value": "baz" } ], "postData":{"mimeType": "application/x-www-form-urlencoded", "params": [{"name": "foo", "value": "bar" } ] } }

httpsnippet example.json --target shell --client curl --output ./examples

$ tree examplesexamples/└── example.sh

inside examples/example.sh you'll see the generated output:

curl --request POST \ --url 'http://mockbin.com/har?foo=bar&foo=baz&baz=abc&key=value' \ --header 'accept: application/json' \ --header 'content-type: application/x-www-form-urlencoded' \ --cookie 'foo=bar; bar=baz' \ --data foo=bar

provide extra options:

httpsnippet example.json --target shell --client curl --output ./examples --options '{"indent": false }'

and see how the output changes, in this case without indentation

curl --request POST --url 'http://mockbin.com/har?foo=bar&foo=baz&baz=abc&key=value' --header 'accept: application/json' --header 'content-type: application/x-www-form-urlencoded' --cookie 'foo=bar; bar=baz' --data foo=bar

npm install --save httpsnippet

yarn add httpsnippet

See https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/har-format for the TypeScript type corresponding to this type

interfaceEntry{request: Partial<HarRequest>;}interfaceHarEntry{log: {version: string;creator: {name: string;version: string;};entries: {request: Partial<HarRequest>;}[];};}

typeTargetId=string;

typeClientId=string;

typeConverter<TextendsRecord<string,any>>=(request: Request,options?: Merge<CodeBuilderOptions,T>,)=>string;

interfaceClient<TextendsRecord<string,any>=Record<string,any>>{info: ClientInfo;convert: Converter<T>;}

interfaceClientInfo{key: ClientId;title: string;link: string;description: string;}

typeExtension= `.${string}` |null;

interfaceTargetInfo{key: TargetId;title: string;extname: Extension;default: string;}

interfaceTarget{info: TargetInfo;clientsById: Record<ClientId,Client>;}

Name of conversion target

import{HTTPSnippet}from'httpsnippet';constsnippet=newHTTPSnippet({method: 'GET',url: 'http://mockbin.com/request',});

The convert method requires a target ID such as node, shell, go, etc. If no client ID is provided, the default client for that target will be used.

Note: to see the default targets for a given client, see target.info.default. For example shell's target has the default of curl.

Many targets provide specific options. Look at the TypeScript types for the target you are interested in to see what options it provides. For example shell:curl's options correspond to the CurlOptions interface in the shell:curl client file.

import{HTTPSnippet}from'httpsnippet';constsnippet=newHTTPSnippet({method: 'GET',url: 'http://mockbin.com/request',});// generate Node.js: Native outputconsole.log(snippet.convert('node'));// generate Node.js: Native output, indent with tabsconsole.log(snippet.convert('node',{indent: '\t',}),);

Useful for validating that a custom target is considered valid by HTTPSnippet.

constisTarget: (target: Target)=>target is Target;

import{myCustomTarget}from'./my-custom-target';import{isTarget}from'httpsnippet';try{console.log(isTarget(myCustomTarget));}catch(error){console.error(error);}

Use addTarget to add a new custom target that you can then use in your project.

constaddTarget: (target: Target)=>void;

import{myCustomClient}from'./my-custom-client';import{HAR}from'my-custom-har';import{HTTPSnippet,addTargetClient}from'httpsnippet';addTargetClient(myCustomClient);constsnippet=newHTTPSnippet(HAR);constoutput=snippet.convert('customTargetId');console.log(output);

Useful for validating that a custom client is considered valid by HTTPSnippet.

constisClient: (client: Client)=>client is Client;

import{myCustomClient}from'./my-custom-client';import{isClient}from'httpsnippet';try{console.log(isClient(myCustomClient));}catch(error){console.error(error);}

Use addTargetClient to add a custom client to an existing target. See addTarget for how to add a custom target.

constaddTargetClient: (targetId: TargetId,client: Client)=>void;

import{myCustomClient}from'./my-custom-client';import{HAR}from'my-custom-har';import{HTTPSnippet,addTargetClient}from'httpsnippet';addTargetClient('customTargetId',myCustomClient);constsnippet=newHTTPSnippet(HAR);constoutput=snippet.convert('customTargetId','customClientId');console.log(output);

Have a bug or a feature request? Please first read the issue guidelines and search for existing and closed issues. If your problem or idea is not addressed yet, please open a new issue.

Please read through our contributing guidelines. Included are directions for opening issues, coding standards, and notes on development.

For info on creating new conversion targets, please review this guideline

Moreover, if your pull request contains TypeScript patches or features, you must include relevant unit tests.

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