mirror of https://github.com/status-im/consul.git
153 lines
3.7 KiB
Plaintext
153 lines
3.7 KiB
Plaintext
---
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layout: "docs"
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page_title: "Commands: KV Get"
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sidebar_current: "docs-commands-kv-get"
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---
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# Consul KV Get
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Command: `consul kv get`
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The `kv get` command is used to retrieve the value from Consul's key-value
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store at the given key name. If no key exists with that name, an error is
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returned. If a key exists with that name but has no data, nothing is returned.
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If the name or prefix is omitted, it defaults to "" which is the root of the
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key-value store.
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## Usage
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Usage: `consul kv get [options] [KEY_OR_PREFIX]`
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#### API Options
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<%= partial "docs/commands/http_api_options" %>
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#### KV Get Options
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* `-base64` - Base 64 encode the value. The default value is false.
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* `-detailed` - Provide additional metadata about the key in addition to the
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value such as the ModifyIndex and any flags that may have been set on the key.
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The default value is false.
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* `-keys` - List keys which start with the given prefix, but not their values.
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This is especially useful if you only need the key names themselves. This
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option is commonly combined with the -separator option. The default value is
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false.
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* `-recurse` - Recursively look at all keys prefixed with the given path. The
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default value is false.
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* `-separator=<string>` - String to use as a separator between keys. The default
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value is "/", but this option is only taken into account when paired with the
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-keys flag.
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## Examples
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To retrieve the value for the key named "redis/config/connections" in the
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key-value store:
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```
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$ consul kv get redis/config/connections
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5
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```
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This will return the original, raw value stored in Consul. To view detailed
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information about the key, specify the "-detailed" flag. This will output all
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known metadata about the key including ModifyIndex and any user-supplied
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flags:
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```
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$ consul kv get -detailed redis/config/connections
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CreateIndex 336
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Flags 0
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Key redis/config/connections
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LockIndex 0
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ModifyIndex 336
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Session -
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Value 5
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```
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If the key with the given name does not exist, an error is returned:
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```
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$ consul kv get not-a-real-key
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Error! No key exists at: not-a-real-key
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```
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To treat the path as a prefix and list all keys which start with the given
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prefix, specify the "-recurse" flag:
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```
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$ consul kv get -recurse redis/
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redis/config/connections:5
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redis/config/cpu:128
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redis/config/memory:512
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```
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Or list detailed information about all pairs under a prefix:
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```
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$ consul kv get -recurse -detailed redis
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CreateIndex 336
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Flags 0
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Key redis/config/connections
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LockIndex 0
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ModifyIndex 336
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Session -
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Value 5
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CreateIndex 472
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Flags 0
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Key redis/config/cpu
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LockIndex 0
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ModifyIndex 472
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Session -
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Value 128
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CreateIndex 471
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Flags 0
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Key redis/config/memory
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LockIndex 0
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ModifyIndex 471
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Session -
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Value 512
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```
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To just list the keys which start with the specified prefix, use the "-keys"
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option instead. This is more performant and results in a smaller payload:
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```
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$ consul kv get -keys redis/config/
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redis/config/connections
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redis/config/cpu
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redis/config/memory
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```
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By default, the `-keys` operation uses a separator of "/", meaning it will not
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recurse beyond that separator. You can choose a different separator by setting
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`-separator="<string>"`.
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```
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$ consul kv get -keys -separator="s" redis
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redis/c
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```
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Alternatively, you can disable the separator altogether by setting it to the
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empty string:
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```
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$ consul kv get -keys -separator="" redis
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redis/config/connections
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redis/config/cpu
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redis/config/memory
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```
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To list all keys at the root, simply omit the prefix parameter:
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```
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$ consul kv get -keys
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memcached/
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redis/
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```
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