mirror of
https://github.com/taigrr/nats.docs
synced 2025-01-18 04:03:23 -08:00
2370 lines
62 KiB
HTML
2370 lines
62 KiB
HTML
|
|
<!DOCTYPE HTML>
|
|
<html lang="" >
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
|
|
<title>Receiving Messages from a Channel ยท NATS</title>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
|
|
<meta name="description" content="">
|
|
<meta name="generator" content="GitBook 3.2.3">
|
|
<meta name="author" content="The NATS Maintainers">
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="../../gitbook/style.css">
|
|
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="../../gitbook/gitbook-plugin-prism/prism.css">
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="../../gitbook/gitbook-plugin-toggle-chapters/toggle.css">
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="../../gitbook/gitbook-plugin-search/search.css">
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="../../gitbook/gitbook-plugin-fontsettings/website.css">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<meta name="HandheldFriendly" content="true"/>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
|
|
<meta name="apple-mobile-web-app-capable" content="yes">
|
|
<meta name="apple-mobile-web-app-status-bar-style" content="black">
|
|
<link rel="apple-touch-icon-precomposed" sizes="152x152" href="../../gitbook/images/apple-touch-icon-precomposed-152.png">
|
|
<link rel="shortcut icon" href="../../gitbook/images/favicon.ico" type="image/x-icon">
|
|
|
|
|
|
<link rel="next" href="durables.html" />
|
|
|
|
|
|
<link rel="prev" href="publishing.html" />
|
|
|
|
|
|
<link rel="stylesheet" href="https://cdn.materialdesignicons.com/3.6.95/css/materialdesignicons.min.css">
|
|
|
|
</head>
|
|
<body>
|
|
|
|
|
|
<div class="book">
|
|
<div class="book-summary">
|
|
|
|
|
|
<div id="book-search-input" role="search">
|
|
<input type="text" placeholder="Type to search" />
|
|
</div>
|
|
|
|
|
|
<nav role="navigation">
|
|
|
|
|
|
|
|
<ul class="summary">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="chapter " data-level="1.1" data-path="../../">
|
|
|
|
<a href="../../">
|
|
|
|
|
|
Introduction
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="1.2" data-path="../../whats_new/whats_new_20.html">
|
|
|
|
<a href="../../whats_new/whats_new_20.html">
|
|
|
|
|
|
What's New in 2.0
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">NATS Server</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="2.1" data-path="../../nats_server/installation.html">
|
|
|
|
<a href="../../nats_server/installation.html">
|
|
|
|
|
|
Installing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.2" data-path="../../nats_server/running.html">
|
|
|
|
<a href="../../nats_server/running.html">
|
|
|
|
|
|
Running
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.2.1" data-path="../../nats_server/windows_srv.html">
|
|
|
|
<a href="../../nats_server/windows_srv.html">
|
|
|
|
|
|
Window Service
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.3" data-path="../../nats_server/clients.html">
|
|
|
|
<a href="../../nats_server/clients.html">
|
|
|
|
|
|
Clients
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.4" data-path="../../nats_server/flags.html">
|
|
|
|
<a href="../../nats_server/flags.html">
|
|
|
|
|
|
Flags
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5" data-path="../../nats_server/configuration.html">
|
|
|
|
<a href="../../nats_server/configuration.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.5.1" data-path="../../nats_server/securing_nats.html">
|
|
|
|
<a href="../../nats_server/securing_nats.html">
|
|
|
|
|
|
Securing NATS
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.5.1.1" data-path="../../nats_server/tls.html">
|
|
|
|
<a href="../../nats_server/tls.html">
|
|
|
|
|
|
Enabling TLS
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.1.2" data-path="../../nats_server/auth_intro.html">
|
|
|
|
<a href="../../nats_server/auth_intro.html">
|
|
|
|
|
|
Authentication
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.5.1.2.1" data-path="../../nats_server/tokens.html">
|
|
|
|
<a href="../../nats_server/tokens.html">
|
|
|
|
|
|
Tokens
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.1.2.2" data-path="../../nats_server/username_password.html">
|
|
|
|
<a href="../../nats_server/username_password.html">
|
|
|
|
|
|
Username/Password
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.1.2.3" data-path="../../nats_server/tls_mutual_auth.html">
|
|
|
|
<a href="../../nats_server/tls_mutual_auth.html">
|
|
|
|
|
|
TLS Authentication
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.1.2.4" data-path="../../nats_server/nkey_auth.html">
|
|
|
|
<a href="../../nats_server/nkey_auth.html">
|
|
|
|
|
|
NKeys
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.1.2.5" data-path="../../nats_server/jwt_auth.html">
|
|
|
|
<a href="../../nats_server/jwt_auth.html">
|
|
|
|
|
|
Accounts
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.1.2.6" data-path="../../nats_server/auth_timeout.html">
|
|
|
|
<a href="../../nats_server/auth_timeout.html">
|
|
|
|
|
|
Authentication Timeout
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.1.3" data-path="../../nats_server/authorization.html">
|
|
|
|
<a href="../../nats_server/authorization.html">
|
|
|
|
|
|
Authorization
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.2" data-path="../../nats_server/clustering.html">
|
|
|
|
<a href="../../nats_server/clustering.html">
|
|
|
|
|
|
Clustering
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.5.2.1" data-path="../../nats_server/cluster_config.html">
|
|
|
|
<a href="../../nats_server/cluster_config.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.2.2" data-path="../../nats_server/cluster_tls.html">
|
|
|
|
<a href="../../nats_server/cluster_tls.html">
|
|
|
|
|
|
TLS Authentication
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.3" data-path="../../gateways/">
|
|
|
|
<a href="../../gateways/">
|
|
|
|
|
|
Gateways
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.5.3.1" data-path="../../gateways/gateway.html">
|
|
|
|
<a href="../../gateways/gateway.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.4" data-path="../../leafnodes/">
|
|
|
|
<a href="../../leafnodes/">
|
|
|
|
|
|
Leaf Nodes
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.5.4.1" data-path="../../leafnodes/leafnode_conf.html">
|
|
|
|
<a href="../../leafnodes/leafnode_conf.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.5" data-path="../../nats_server/logging.html">
|
|
|
|
<a href="../../nats_server/logging.html">
|
|
|
|
|
|
Logging
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5.6" data-path="../../nats_server/monitoring.html">
|
|
|
|
<a href="../../nats_server/monitoring.html">
|
|
|
|
|
|
Monitoring
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.6" data-path="../../nats_admin/">
|
|
|
|
<a href="../../nats_admin/">
|
|
|
|
|
|
Managing A NATS Server
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.6.1" data-path="../../nats_admin/upgrading_cluster.html">
|
|
|
|
<a href="../../nats_admin/upgrading_cluster.html">
|
|
|
|
|
|
Upgrading a Cluster
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.6.2" data-path="../../nats_admin/slow_consumers.html">
|
|
|
|
<a href="../../nats_admin/slow_consumers.html">
|
|
|
|
|
|
Slow Consumers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.6.3" data-path="../../nats_admin/signals.html">
|
|
|
|
<a href="../../nats_admin/signals.html">
|
|
|
|
|
|
Signals
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.6.4" data-path="../../sys_accounts/">
|
|
|
|
<a href="../../sys_accounts/">
|
|
|
|
|
|
System Accounts
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.6.4.1" data-path="../../sys_accounts/sys_accounts.html">
|
|
|
|
<a href="../../sys_accounts/sys_accounts.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.7" data-path="../../nats_docker/">
|
|
|
|
<a href="../../nats_docker/">
|
|
|
|
|
|
NATS and Docker
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="2.7.1" data-path="../../nats_docker/tutorial.html">
|
|
|
|
<a href="../../nats_docker/tutorial.html">
|
|
|
|
|
|
Tutorial
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.7.2" data-path="../../nats_docker/docker_swarm.html">
|
|
|
|
<a href="../../nats_docker/docker_swarm.html">
|
|
|
|
|
|
Docker Swarm
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">NATS Streaming Server</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="3.1" data-path="../../nats_streaming/nats-streaming-intro.html">
|
|
|
|
<a href="../../nats_streaming/nats-streaming-intro.html">
|
|
|
|
|
|
Basics
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.2" data-path="../../nats_streaming/nats-streaming-install.html">
|
|
|
|
<a href="../../nats_streaming/nats-streaming-install.html">
|
|
|
|
|
|
Installing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="3.2.1" data-path="../../nats_streaming/nats-streaming-tls.html">
|
|
|
|
<a href="../../nats_streaming/nats-streaming-tls.html">
|
|
|
|
|
|
Securing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.3" data-path="../../nats_streaming/nats-streaming-protocol.html">
|
|
|
|
<a href="../../nats_streaming/nats-streaming-protocol.html">
|
|
|
|
|
|
Protocol
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.4" data-path="../../nats_streaming/nats-streaming-swarm.html">
|
|
|
|
<a href="../../nats_streaming/nats-streaming-swarm.html">
|
|
|
|
|
|
Docker Swarm
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">NATS Tools</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="4.1" data-path="../../nats_tools/mkpasswd.html">
|
|
|
|
<a href="../../nats_tools/mkpasswd.html">
|
|
|
|
|
|
mkpasswd
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.2" data-path="../../nats_tools/nk.html">
|
|
|
|
<a href="../../nats_tools/nk.html">
|
|
|
|
|
|
nk
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.3" data-path="../../nats_tools/nsc/">
|
|
|
|
<a href="../../nats_tools/nsc/">
|
|
|
|
|
|
nsc
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.3.1" data-path="../../nats_tools/nsc/nsc.html">
|
|
|
|
<a href="../../nats_tools/nsc/nsc.html">
|
|
|
|
|
|
Basics
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.3.2" data-path="../../nats_tools/nsc/streams.html">
|
|
|
|
<a href="../../nats_tools/nsc/streams.html">
|
|
|
|
|
|
Streams
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.3.3" data-path="../../nats_tools/nsc/services.html">
|
|
|
|
<a href="../../nats_tools/nsc/services.html">
|
|
|
|
|
|
Services
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.3.4" data-path="../../nats_tools/nsc/signing_keys.html">
|
|
|
|
<a href="../../nats_tools/nsc/signing_keys.html">
|
|
|
|
|
|
Signing Keys
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.4" data-path="../../nats_tools/nas/">
|
|
|
|
<a href="../../nats_tools/nas/">
|
|
|
|
|
|
nats-account-server
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.4.1" data-path="../../nats_tools/nas/nas_conf.html">
|
|
|
|
<a href="../../nats_tools/nas/nas_conf.html">
|
|
|
|
|
|
Basics
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.4.2" data-path="../../nats_tools/nas/inspecting_jwts.html">
|
|
|
|
<a href="../../nats_tools/nas/inspecting_jwts.html">
|
|
|
|
|
|
Inspecting JWTs
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.4.3" data-path="../../nats_tools/nas/mem_resolver.html">
|
|
|
|
<a href="../../nats_tools/nas/mem_resolver.html">
|
|
|
|
|
|
Memory Resolver
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5" data-path="../../nats_tools/nats_top/">
|
|
|
|
<a href="../../nats_tools/nats_top/">
|
|
|
|
|
|
nats-top
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.5.1" data-path="../../nats_tools/nats_top/tutorial.html">
|
|
|
|
<a href="../../nats_tools/nats_top/tutorial.html">
|
|
|
|
|
|
Tutorial
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.6" data-path="../../nats_tools/natsbench.html">
|
|
|
|
<a href="../../nats_tools/natsbench.html">
|
|
|
|
|
|
nats-bench
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">Developing With NATS</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="5.1" data-path="../">
|
|
|
|
<a href="../">
|
|
|
|
|
|
Introduction
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.2" data-path="../concepts/intro.html">
|
|
|
|
<a href="../concepts/intro.html">
|
|
|
|
|
|
Concepts
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.2.1" data-path="../concepts/subjects.html">
|
|
|
|
<a href="../concepts/subjects.html">
|
|
|
|
|
|
Subject-Based Messaging
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.2.2" data-path="../concepts/pubsub.html">
|
|
|
|
<a href="../concepts/pubsub.html">
|
|
|
|
|
|
Publish-Subscribe
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.2.3" data-path="../concepts/reqreply.html">
|
|
|
|
<a href="../concepts/reqreply.html">
|
|
|
|
|
|
Request-Reply
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.2.4" data-path="../concepts/queue.html">
|
|
|
|
<a href="../concepts/queue.html">
|
|
|
|
|
|
Queue Groups
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.2.5" data-path="../concepts/acks.html">
|
|
|
|
<a href="../concepts/acks.html">
|
|
|
|
|
|
Acknowledgements
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.2.6" data-path="../concepts/seq_num.html">
|
|
|
|
<a href="../concepts/seq_num.html">
|
|
|
|
|
|
Sequence Numbers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3" data-path="../connecting/intro.html">
|
|
|
|
<a href="../connecting/intro.html">
|
|
|
|
|
|
Connecting
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.3.1" data-path="../connecting/default_server.html">
|
|
|
|
<a href="../connecting/default_server.html">
|
|
|
|
|
|
Connecting to the Default Server
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.2" data-path="../connecting/specific_server.html">
|
|
|
|
<a href="../connecting/specific_server.html">
|
|
|
|
|
|
Connecting to a Specific Server
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.3" data-path="../connecting/cluster.html">
|
|
|
|
<a href="../connecting/cluster.html">
|
|
|
|
|
|
Connecting to a Cluster
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.4" data-path="../connecting/connect_timeout.html">
|
|
|
|
<a href="../connecting/connect_timeout.html">
|
|
|
|
|
|
Setting a Connect Timeout
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.5" data-path="../connecting/pingpong.html">
|
|
|
|
<a href="../connecting/pingpong.html">
|
|
|
|
|
|
Ping/Pong Protocol
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.6" data-path="../connecting/protocol.html">
|
|
|
|
<a href="../connecting/protocol.html">
|
|
|
|
|
|
Controlling the Client/Server Protocol
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.7" data-path="../connecting/noecho.html">
|
|
|
|
<a href="../connecting/noecho.html">
|
|
|
|
|
|
Turning Off Echo'd Messages
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.4" data-path="../reconnect/intro.html">
|
|
|
|
<a href="../reconnect/intro.html">
|
|
|
|
|
|
Automatic Reconnections
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.4.1" data-path="../reconnect/disable.html">
|
|
|
|
<a href="../reconnect/disable.html">
|
|
|
|
|
|
Disabling Reconnect
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.4.2" data-path="../reconnect/max.html">
|
|
|
|
<a href="../reconnect/max.html">
|
|
|
|
|
|
Set the Number of Reconnect Attempts
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.4.3" data-path="../reconnect/wait.html">
|
|
|
|
<a href="../reconnect/wait.html">
|
|
|
|
|
|
Pausing Between Reconnect Attempts
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.4.4" data-path="../reconnect/random.html">
|
|
|
|
<a href="../reconnect/random.html">
|
|
|
|
|
|
Avoiding the Thundering Herd
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.4.5" data-path="../reconnect/events.html">
|
|
|
|
<a href="../reconnect/events.html">
|
|
|
|
|
|
Listening for Reconnect Events
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.4.6" data-path="../reconnect/buffer.html">
|
|
|
|
<a href="../reconnect/buffer.html">
|
|
|
|
|
|
Buffering Messages During Reconnect Attempts
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.5" data-path="../security/intro.html">
|
|
|
|
<a href="../security/intro.html">
|
|
|
|
|
|
Securing Connections
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.5.1" data-path="../security/userpass.html">
|
|
|
|
<a href="../security/userpass.html">
|
|
|
|
|
|
Authenticating with a User and Password
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.5.2" data-path="../security/token.html">
|
|
|
|
<a href="../security/token.html">
|
|
|
|
|
|
Authenticating with a Token
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.5.3" data-path="../security/nkey.html">
|
|
|
|
<a href="../security/nkey.html">
|
|
|
|
|
|
Authenticating with an NKey
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.5.4" data-path="../security/creds.html">
|
|
|
|
<a href="../security/creds.html">
|
|
|
|
|
|
Authenticating with a Credentials File
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.5.5" data-path="../security/tls.html">
|
|
|
|
<a href="../security/tls.html">
|
|
|
|
|
|
Encrypting Connections with TLS
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.6" data-path="../receiving/intro.html">
|
|
|
|
<a href="../receiving/intro.html">
|
|
|
|
|
|
Receiving Messages
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.6.1" data-path="../receiving/sync.html">
|
|
|
|
<a href="../receiving/sync.html">
|
|
|
|
|
|
Synchronous Subscriptions
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.6.2" data-path="../receiving/async.html">
|
|
|
|
<a href="../receiving/async.html">
|
|
|
|
|
|
Asynchronous Subscriptions
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.6.3" data-path="../receiving/unsubscribing.html">
|
|
|
|
<a href="../receiving/unsubscribing.html">
|
|
|
|
|
|
Unsubscribing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.6.4" data-path="../receiving/unsub_after.html">
|
|
|
|
<a href="../receiving/unsub_after.html">
|
|
|
|
|
|
Unsubscribing After N Messages
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.6.5" data-path="../receiving/reply.html">
|
|
|
|
<a href="../receiving/reply.html">
|
|
|
|
|
|
Replying to a Message
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.6.6" data-path="../receiving/wildcards.html">
|
|
|
|
<a href="../receiving/wildcards.html">
|
|
|
|
|
|
Wildcard Subscriptions
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.6.7" data-path="../receiving/queues.html">
|
|
|
|
<a href="../receiving/queues.html">
|
|
|
|
|
|
Queue Subscriptions
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.6.8" data-path="../receiving/drain.html">
|
|
|
|
<a href="../receiving/drain.html">
|
|
|
|
|
|
Draining Messages Before Disconnect
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.6.9" data-path="../receiving/structure.html">
|
|
|
|
<a href="../receiving/structure.html">
|
|
|
|
|
|
Structured Data
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.7" data-path="../sending/intro.html">
|
|
|
|
<a href="../sending/intro.html">
|
|
|
|
|
|
Sending Messages
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.7.1" data-path="../sending/replyto.html">
|
|
|
|
<a href="../sending/replyto.html">
|
|
|
|
|
|
Including a Reply Subject
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.7.2" data-path="../sending/request_reply.html">
|
|
|
|
<a href="../sending/request_reply.html">
|
|
|
|
|
|
Request-Reply Semantics
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.7.3" data-path="../sending/caches.html">
|
|
|
|
<a href="../sending/caches.html">
|
|
|
|
|
|
Caches, Flush and Ping
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.7.4" data-path="../sending/structure.html">
|
|
|
|
<a href="../sending/structure.html">
|
|
|
|
|
|
Sending Structured Data
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.8" data-path="../events/intro.html">
|
|
|
|
<a href="../events/intro.html">
|
|
|
|
|
|
Monitoring the Connection
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.8.1" data-path="../events/events.html">
|
|
|
|
<a href="../events/events.html">
|
|
|
|
|
|
Listen for Connection Events
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.8.2" data-path="../events/slow.html">
|
|
|
|
<a href="../events/slow.html">
|
|
|
|
|
|
Slow Consumers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.9" data-path="../tutorials/intro.html">
|
|
|
|
<a href="../tutorials/intro.html">
|
|
|
|
|
|
Tutorials
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.9.1" data-path="../tutorials/pubsub.html">
|
|
|
|
<a href="../tutorials/pubsub.html">
|
|
|
|
|
|
Explore NATS Pub/Sub
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.9.2" data-path="../tutorials/reqreply.html">
|
|
|
|
<a href="../tutorials/reqreply.html">
|
|
|
|
|
|
Explore NATS Request/Reply
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.9.3" data-path="../tutorials/queues.html">
|
|
|
|
<a href="../tutorials/queues.html">
|
|
|
|
|
|
Explore NATS Queueing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.9.4" data-path="../tutorials/custom_dialer.html">
|
|
|
|
<a href="../tutorials/custom_dialer.html">
|
|
|
|
|
|
Advanced Connect and Custom Dialer in Go
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">Developing With NATS Streaming</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="6.1" data-path="./">
|
|
|
|
<a href="./">
|
|
|
|
|
|
Introduction
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="6.2" data-path="connecting.html">
|
|
|
|
<a href="connecting.html">
|
|
|
|
|
|
Connecting to NATS Streaming
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="6.3" data-path="publishing.html">
|
|
|
|
<a href="publishing.html">
|
|
|
|
|
|
Publishing to a Channel
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter active" data-level="6.4" data-path="receiving.html">
|
|
|
|
<a href="receiving.html">
|
|
|
|
|
|
Receiving Messages from a Channel
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="6.5" data-path="durables.html">
|
|
|
|
<a href="durables.html">
|
|
|
|
|
|
Durable Subscriptions
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="6.6" data-path="queues.html">
|
|
|
|
<a href="queues.html">
|
|
|
|
|
|
Queue Subscriptions
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="6.7" data-path="acks.html">
|
|
|
|
<a href="acks.html">
|
|
|
|
|
|
Acknowledgements
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">NATS Protocol</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="7.1" data-path="../../nats_protocol/nats-protocol-demo.html">
|
|
|
|
<a href="../../nats_protocol/nats-protocol-demo.html">
|
|
|
|
|
|
Protocol Demo
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="7.2" data-path="../../nats_protocol/nats-protocol.html">
|
|
|
|
<a href="../../nats_protocol/nats-protocol.html">
|
|
|
|
|
|
Client Protocol
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="7.2.1" data-path="../../nats_protocol/nats-client-dev.html">
|
|
|
|
<a href="../../nats_protocol/nats-client-dev.html">
|
|
|
|
|
|
Developing a Client
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="7.3" data-path="../../nats_protocol/nats-server-protocol.html">
|
|
|
|
<a href="../../nats_protocol/nats-server-protocol.html">
|
|
|
|
|
|
NATS Cluster Protocol
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="divider"></li>
|
|
|
|
<li>
|
|
<a href="https://www.gitbook.com" target="blank" class="gitbook-link">
|
|
Published with GitBook
|
|
</a>
|
|
</li>
|
|
</ul>
|
|
|
|
|
|
</nav>
|
|
|
|
|
|
</div>
|
|
|
|
<div class="book-body">
|
|
|
|
<div class="body-inner">
|
|
|
|
|
|
|
|
<div class="book-header" role="navigation">
|
|
|
|
|
|
<!-- Title -->
|
|
<h1>
|
|
<i class="fa fa-circle-o-notch fa-spin"></i>
|
|
<a href="../.." >Receiving Messages from a Channel</a>
|
|
</h1>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
<div class="page-wrapper" tabindex="-1" role="main">
|
|
<div class="page-inner">
|
|
|
|
<div id="book-search-results">
|
|
<div class="search-noresults">
|
|
|
|
<section class="normal markdown-section">
|
|
|
|
<h1 id="receiving-messages-from-a-channel">Receiving Messages from a Channel</h1>
|
|
<p>Clients subscribe to channels by name. Wildcards are not supported. Receiving messages is similar to core NATS. Messages in streaming use protocol buffers and will have a bit more structure than NATS opaque messages. Client messages are still presented and accepted as raw/opaque binary data. The use of protocol buffers is transparent.</p>
|
|
<p>Subscriptions come in several forms:</p>
|
|
<ul>
|
|
<li>Regular</li>
|
|
<li>Durable</li>
|
|
<li>Queue</li>
|
|
<li>Queue/Durable</li>
|
|
</ul>
|
|
<p>Subscriptions set their starting position on creation using position or time. For example, in Go you can start at:</p>
|
|
<ul>
|
|
<li>The last message received</li>
|
|
</ul>
|
|
<pre class="language-"><code class="lang-go">sub<span class="token punctuation">,</span> err <span class="token operator">:=</span> sc<span class="token punctuation">.</span><span class="token function">Subscribe</span><span class="token punctuation">(</span><span class="token string">"foo"</span><span class="token punctuation">,</span>
|
|
<span class="token keyword">func</span><span class="token punctuation">(</span>m <span class="token operator">*</span>stan<span class="token punctuation">.</span>Msg<span class="token punctuation">)</span> <span class="token punctuation">{</span><span class="token operator">...</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
|
|
stan<span class="token punctuation">.</span><span class="token function">StartWithLastReceived</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
|
|
</code></pre>
|
|
<ul>
|
|
<li>The beginning of the channel</li>
|
|
</ul>
|
|
<pre class="language-"><code class="lang-go">sub<span class="token punctuation">,</span> err <span class="token operator">:=</span> sc<span class="token punctuation">.</span><span class="token function">Subscribe</span><span class="token punctuation">(</span><span class="token string">"foo"</span><span class="token punctuation">,</span>
|
|
<span class="token keyword">func</span><span class="token punctuation">(</span>m <span class="token operator">*</span>stan<span class="token punctuation">.</span>Msg<span class="token punctuation">)</span> <span class="token punctuation">{</span><span class="token operator">...</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
|
|
stan<span class="token punctuation">.</span><span class="token function">DeliverAllAvailable</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
|
|
</code></pre>
|
|
<ul>
|
|
<li>A specific message, indexing starts at 1</li>
|
|
</ul>
|
|
<pre class="language-"><code class="lang-go">sub<span class="token punctuation">,</span> err <span class="token operator">:=</span> sc<span class="token punctuation">.</span><span class="token function">Subscribe</span><span class="token punctuation">(</span><span class="token string">"foo"</span><span class="token punctuation">,</span>
|
|
<span class="token keyword">func</span><span class="token punctuation">(</span>m <span class="token operator">*</span>stan<span class="token punctuation">.</span>Msg<span class="token punctuation">)</span> <span class="token punctuation">{</span><span class="token operator">...</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
|
|
stan<span class="token punctuation">.</span><span class="token function">StartAtSequence</span><span class="token punctuation">(</span><span class="token number">22</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
|
|
</code></pre>
|
|
<ul>
|
|
<li>A specific time the message arrived in the channel</li>
|
|
</ul>
|
|
<pre class="language-"><code class="lang-go"><span class="token keyword">var</span> startTime time<span class="token punctuation">.</span>Time
|
|
<span class="token operator">...</span>
|
|
sub<span class="token punctuation">,</span> err <span class="token operator">:=</span> sc<span class="token punctuation">.</span><span class="token function">Subscribe</span><span class="token punctuation">(</span><span class="token string">"foo"</span><span class="token punctuation">,</span>
|
|
<span class="token keyword">func</span><span class="token punctuation">(</span>m <span class="token operator">*</span>stan<span class="token punctuation">.</span>Msg<span class="token punctuation">)</span> <span class="token punctuation">{</span><span class="token operator">...</span><span class="token punctuation">}</span><span class="token punctuation">,</span>
|
|
stan<span class="token punctuation">.</span><span class="token function">StartAtTime</span><span class="token punctuation">(</span>startTime<span class="token punctuation">)</span><span class="token punctuation">)</span>
|
|
</code></pre>
|
|
|
|
|
|
</section>
|
|
|
|
</div>
|
|
<div class="search-results">
|
|
<div class="has-results">
|
|
|
|
<h1 class="search-results-title"><span class='search-results-count'></span> results matching "<span class='search-query'></span>"</h1>
|
|
<ul class="search-results-list"></ul>
|
|
|
|
</div>
|
|
<div class="no-results">
|
|
|
|
<h1 class="search-results-title">No results matching "<span class='search-query'></span>"</h1>
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
</div>
|
|
</div>
|
|
|
|
</div>
|
|
|
|
|
|
|
|
<a href="publishing.html" class="navigation navigation-prev " aria-label="Previous page: Publishing to a Channel">
|
|
<i class="fa fa-angle-left"></i>
|
|
</a>
|
|
|
|
|
|
<a href="durables.html" class="navigation navigation-next " aria-label="Next page: Durable Subscriptions">
|
|
<i class="fa fa-angle-right"></i>
|
|
</a>
|
|
|
|
|
|
|
|
</div>
|
|
|
|
<script>
|
|
var gitbook = gitbook || [];
|
|
gitbook.push(function() {
|
|
gitbook.page.hasChanged({"page":{"title":"Receiving Messages from a Channel","level":"6.4","depth":1,"next":{"title":"Durable Subscriptions","level":"6.5","depth":1,"path":"developer/streaming/durables.md","ref":"developer/streaming/durables.md","articles":[]},"previous":{"title":"Publishing to a Channel","level":"6.3","depth":1,"path":"developer/streaming/publishing.md","ref":"developer/streaming/publishing.md","articles":[]},"dir":"ltr"},"config":{"plugins":["prism","-highlight","include-html","toggle-chapters"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"prism":{"lang":{"ascii":"markup","text":"markup"}},"include-html":{},"toggle-chapters":{},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"fontsettings":{"theme":"white","family":"sans","size":2},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false}},"theme":"default","author":"The NATS Maintainers","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"NATS","gitbook":"*","description":"Administrative, developer and conceptual documentation for the NATS messaging system."},"file":{"path":"developer/streaming/receiving.md","mtime":"2019-05-17T18:16:03.094Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2019-05-20T21:03:51.799Z"},"basePath":"../..","book":{"language":""}});
|
|
});
|
|
</script>
|
|
</div>
|
|
|
|
<!-- Viz Support -->
|
|
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/viz.js/2.1.2/viz.js"> </script>
|
|
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/viz.js/2.1.2/lite.render.js"> </script>
|
|
|
|
<!-- Site code -->
|
|
<script>
|
|
function flash(elem, text, speed) {
|
|
if (!elem) {
|
|
return;
|
|
}
|
|
var s = elem.style;
|
|
elem.textContent = text;
|
|
s.display = 'block';
|
|
s.opacity = 1;
|
|
(function fade() {
|
|
(s.opacity -= .1) < .1 ? s.display = "none" : setTimeout(fade, speed)
|
|
})();
|
|
}
|
|
|
|
function copyToClipboard(text, el) {
|
|
var copyTest = document.queryCommandSupported('copy');
|
|
var elOriginalText = el.getAttribute('data-original-title');
|
|
|
|
if (copyTest === true) {
|
|
var copyTextArea = document.createElement("textarea");
|
|
copyTextArea.value = text;
|
|
document.body.appendChild(copyTextArea);
|
|
copyTextArea.select();
|
|
try {
|
|
var successful = document.execCommand('copy');
|
|
var msg = successful ? 'Copied!' : 'Whoops, not copied!';
|
|
var parent = el.parentNode.parentNode;
|
|
var msgElem = parent.querySelector(".copy-msg");
|
|
flash(msgElem, msg, 100);
|
|
} catch (err) {
|
|
console.log('Oops, unable to copy', err);
|
|
}
|
|
document.body.removeChild(copyTextArea);
|
|
el.setAttribute('data-original-title', elOriginalText);
|
|
} else {
|
|
// Fallback if browser doesn't support .execCommand('copy')
|
|
window.prompt("Copy to clipboard: Ctrl+C or Command+C, Enter", text);
|
|
}
|
|
}
|
|
|
|
function processGraphVizSections(elements) {
|
|
var elements = document.querySelectorAll("[data-viz]");
|
|
var viz = new Viz();
|
|
Array.prototype.forEach.call(elements, function (x) {
|
|
var engine = x.getAttribute("data-viz");
|
|
var image = viz.renderImageElement(x.innerText, {
|
|
format: "png",
|
|
engine: engine
|
|
}).then(function (element) {
|
|
x.parentNode.insertBefore(element, x);
|
|
});
|
|
});
|
|
|
|
|
|
};
|
|
|
|
function updateLanguageParameter(value) {
|
|
const param = "lang";
|
|
|
|
if (window.location.href.indexOf("?") >= 0) {
|
|
const regExp = new RegExp(param + "(.+?)(&|$)", "g");
|
|
const newUrl = window.location.href.replace(regExp, param + "=" + encodeURIComponent(value) + "$2");
|
|
window.history.pushState("", "", newUrl);
|
|
} else {
|
|
const newUrl = window.location.href + "?" + param + "=" + encodeURIComponent(value);
|
|
window.history.pushState("", "", newUrl);
|
|
}
|
|
}
|
|
|
|
function getLanguageParameter() {
|
|
var match = RegExp('[?&]lang=([^&]*)').exec(window.location.search);
|
|
return match && decodeURIComponent(match[1].replace(/\+/g, ' '));
|
|
}
|
|
|
|
function docReady() {
|
|
window.gitbook.events.bind("page.change", function () {
|
|
pageChanged();
|
|
});
|
|
}
|
|
|
|
function pageChanged() {
|
|
document.querySelectorAll('.js-copy').forEach(elem => {
|
|
elem.addEventListener("click", function () {
|
|
var el = this;
|
|
var parent = this.parentNode.parentNode;
|
|
var code = parent.querySelector('code');
|
|
var text = code.textContent || code.innerText;
|
|
copyToClipboard(text, el);
|
|
})
|
|
});
|
|
|
|
document.querySelectorAll('.api-lang').forEach(elem => {
|
|
elem.addEventListener("click", function () {
|
|
var curLang = sessionStorage.getItem('nats-api-language');
|
|
var lang = this.getAttribute('data-language');
|
|
|
|
// Stop the infinite loop
|
|
if (curLang == lang) {
|
|
return;
|
|
}
|
|
|
|
sessionStorage.setItem('nats-api-language', lang); // So we only do this 1x
|
|
|
|
updateLanguageParameter(lang)
|
|
|
|
document.querySelectorAll('.api-lang[data-language=' + lang + ']').forEach(elem => {
|
|
elem.click();
|
|
});
|
|
})
|
|
});
|
|
|
|
if (sessionStorage) {
|
|
var curLang = sessionStorage.getItem('nats-api-language');
|
|
var queryLang = getLanguageParameter();
|
|
var lang = curLang;
|
|
|
|
if (queryLang) { // query takes precedent
|
|
lang = queryLang
|
|
}
|
|
|
|
if (lang) {
|
|
document.querySelectorAll('.api-lang[data-language=' + lang + ']').forEach(elem => {
|
|
elem.click();
|
|
});
|
|
}
|
|
}
|
|
|
|
setTimeout(function () {
|
|
processGraphVizSections();
|
|
}, 1);
|
|
}
|
|
|
|
|
|
if (document.readyState != 'loading') docReady();
|
|
else if (document.addEventListener) document.addEventListener('DOMContentLoaded', docReady);
|
|
else document.attachEvent('onreadystatechange', function () {
|
|
if (document.readyState == 'complete') docReady();
|
|
});
|
|
</script>
|
|
|
|
<!-- Github Buttons -->
|
|
<script async defer src="https://buttons.github.io/buttons.js"></script>
|
|
|
|
<!-- Styles -->
|
|
<style>
|
|
div.graphviz {
|
|
background: transparent;
|
|
border: 0;
|
|
padding-top: 15px;
|
|
padding-right: 15px;
|
|
padding-bottom: 25px;
|
|
padding-left: 15px;
|
|
text-align: center;
|
|
}
|
|
|
|
code[data-viz] {
|
|
display: none;
|
|
}
|
|
|
|
.tab-wrap {
|
|
transition: 0.3s box-shadow ease;
|
|
border-radius: 6px;
|
|
max-width: 100%;
|
|
display: flex;
|
|
flex-wrap: wrap;
|
|
position: relative;
|
|
list-style: none;
|
|
background-color: #fff;
|
|
margin: 20px 0;
|
|
/* box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);*/
|
|
}
|
|
|
|
.tab-wrap:hover {
|
|
box-shadow: 0 12px 23px rgba(0, 0, 0, 0.23), 0 10px 10px rgba(0, 0, 0, 0.19);
|
|
}
|
|
|
|
.tab {
|
|
display: none;
|
|
}
|
|
|
|
/* Using scss these would be generated, we have to manually create enough for all tabs, start with 8 */
|
|
.tab:checked:nth-of-type(1)~.tab__content:nth-of-type(1) {
|
|
opacity: 1;
|
|
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
|
|
position: relative;
|
|
top: 0;
|
|
z-index: 100;
|
|
-webkit-transform: translateY(0px);
|
|
transform: translateY(0px);
|
|
text-shadow: 0 0 0;
|
|
}
|
|
|
|
.tab:checked:nth-of-type(2)~.tab__content:nth-of-type(2) {
|
|
opacity: 1;
|
|
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
|
|
position: relative;
|
|
top: 0;
|
|
z-index: 100;
|
|
-webkit-transform: translateY(0px);
|
|
transform: translateY(0px);
|
|
text-shadow: 0 0 0;
|
|
}
|
|
|
|
.tab:checked:nth-of-type(3)~.tab__content:nth-of-type(3) {
|
|
opacity: 1;
|
|
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
|
|
position: relative;
|
|
top: 0;
|
|
z-index: 100;
|
|
-webkit-transform: translateY(0px);
|
|
transform: translateY(0px);
|
|
text-shadow: 0 0 0;
|
|
}
|
|
|
|
.tab:checked:nth-of-type(4)~.tab__content:nth-of-type(4) {
|
|
opacity: 1;
|
|
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
|
|
position: relative;
|
|
top: 0;
|
|
z-index: 100;
|
|
-webkit-transform: translateY(0px);
|
|
transform: translateY(0px);
|
|
text-shadow: 0 0 0;
|
|
}
|
|
|
|
.tab:checked:nth-of-type(5)~.tab__content:nth-of-type(5) {
|
|
opacity: 1;
|
|
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
|
|
position: relative;
|
|
top: 0;
|
|
z-index: 100;
|
|
-webkit-transform: translateY(0px);
|
|
transform: translateY(0px);
|
|
text-shadow: 0 0 0;
|
|
}
|
|
|
|
.tab:checked:nth-of-type(6)~.tab__content:nth-of-type(6) {
|
|
opacity: 1;
|
|
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
|
|
position: relative;
|
|
top: 0;
|
|
z-index: 100;
|
|
-webkit-transform: translateY(0px);
|
|
transform: translateY(0px);
|
|
text-shadow: 0 0 0;
|
|
}
|
|
|
|
.tab:checked:nth-of-type(7)~.tab__content:nth-of-type(7) {
|
|
opacity: 1;
|
|
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
|
|
position: relative;
|
|
top: 0;
|
|
z-index: 100;
|
|
-webkit-transform: translateY(0px);
|
|
transform: translateY(0px);
|
|
text-shadow: 0 0 0;
|
|
}
|
|
|
|
.tab:checked:nth-of-type(8)~.tab__content:nth-of-type(8) {
|
|
opacity: 1;
|
|
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease;
|
|
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
|
|
position: relative;
|
|
top: 0;
|
|
z-index: 100;
|
|
-webkit-transform: translateY(0px);
|
|
transform: translateY(0px);
|
|
text-shadow: 0 0 0;
|
|
}
|
|
|
|
.tab:first-of-type:not(:last-of-type)+label {
|
|
border-top-right-radius: 0;
|
|
border-bottom-right-radius: 0;
|
|
}
|
|
|
|
.tab:not(:first-of-type):not(:last-of-type)+label {
|
|
border-radius: 0;
|
|
}
|
|
|
|
.tab:last-of-type:not(:first-of-type)+label {
|
|
border-top-left-radius: 0;
|
|
border-bottom-left-radius: 0;
|
|
}
|
|
|
|
.tab:checked+label {
|
|
background-color: #fff;
|
|
box-shadow: 0 -1px 0 #fff inset;
|
|
cursor: default;
|
|
font-weight: bold;
|
|
border: 1px solid #ddd;
|
|
border-bottom-color: transparent;
|
|
}
|
|
|
|
.tab:checked+label:hover {
|
|
box-shadow: 0 -1px 0 #fff inset;
|
|
background-color: #fff;
|
|
}
|
|
|
|
.tab+label {
|
|
box-shadow: 0 -1px 0 #eee inset;
|
|
border-radius: 6px 6px 0 0;
|
|
cursor: pointer;
|
|
display: block;
|
|
text-decoration: none;
|
|
color: #27aae1;
|
|
flex-grow: 3;
|
|
text-align: center;
|
|
-webkit-user-select: none;
|
|
-moz-user-select: none;
|
|
-ms-user-select: none;
|
|
user-select: none;
|
|
text-align: center;
|
|
transition: 0.3s background-color ease, 0.3s box-shadow ease;
|
|
height: 50px;
|
|
box-sizing: border-box;
|
|
padding: 15px;
|
|
}
|
|
|
|
.tab+label:hover {
|
|
background-color: #f9f9f9;
|
|
box-shadow: 0 1px 0 #f4f4f4 inset;
|
|
}
|
|
|
|
.tab__content {
|
|
padding: 2px 2px;
|
|
background-color: transparent;
|
|
position: absolute;
|
|
width: 100%;
|
|
z-index: -1;
|
|
opacity: 0;
|
|
left: 0;
|
|
-webkit-transform: translateY(-3px);
|
|
transform: translateY(-3px);
|
|
border-radius: 6px;
|
|
}
|
|
|
|
.tab__content pre {
|
|
margin-bottom: 0px !important;
|
|
}
|
|
|
|
.toolbar-icons {
|
|
display: inline-block;
|
|
position: relative;
|
|
padding-left: 4px;
|
|
}
|
|
|
|
a.toolbar-icons {
|
|
text-decoration: none;
|
|
}
|
|
|
|
.toolbar-icons .mdi {
|
|
color: #4183c4;
|
|
}
|
|
|
|
.copy-msg {
|
|
color: #4183c4;
|
|
}
|
|
|
|
.pull-right {
|
|
float: right !important;
|
|
}
|
|
|
|
.pull-left {
|
|
float: left !important;
|
|
}
|
|
</style>
|
|
|
|
|
|
<script src="../../gitbook/gitbook.js"></script>
|
|
<script src="../../gitbook/theme.js"></script>
|
|
|
|
|
|
<script src="../../gitbook/gitbook-plugin-toggle-chapters/toggle.js"></script>
|
|
|
|
|
|
|
|
<script src="../../gitbook/gitbook-plugin-search/search-engine.js"></script>
|
|
|
|
|
|
|
|
<script src="../../gitbook/gitbook-plugin-search/search.js"></script>
|
|
|
|
|
|
|
|
<script src="../../gitbook/gitbook-plugin-lunr/lunr.min.js"></script>
|
|
|
|
|
|
|
|
<script src="../../gitbook/gitbook-plugin-lunr/search-lunr.js"></script>
|
|
|
|
|
|
|
|
<script src="../../gitbook/gitbook-plugin-sharing/buttons.js"></script>
|
|
|
|
|
|
|
|
<script src="../../gitbook/gitbook-plugin-fontsettings/fontsettings.js"></script>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|
|
|