# cbc-subdoc(1) - Interactively Inspect Document Using Subdocument API

## SYNOPSIS

`cbc-subdoc` [_OPTIONS_]

## DESCRIPTION

`cbc-subdoc` runs an interactive shell with commands from subdocument API.

<a name="options"></a>
## OPTIONS

Options may be read either from the command line, or from a configuration file
(see cbcrc(4)):

The following options control workload generation:

* `-U`, `--spec`=_SPEC_:
  A string describing the cluster to connect to. The string is in a URI-like syntax,
  and may also contain other options. See the [EXAMPLES](#examples) section for information.
  Typically such a URI will look like `couchbase://host1,host2,host3/bucket`.

  The default for this option is `couchbase://localhost/default`

* `-u`, `--username`=_USERNAME_:
  Specify the _username_ for the connection.

* `-P`, `--password`=_SASLPASS_:

* `-P -`, `--password=-`:
  Specify the SASL password for the bucket. This is only needed if the bucket is
  protected with a password. Note that this is _not_ the administrative password
  used to log into the web interface.

  Specifying the `-` as the password indicates that the program should prompt for the
  password. You may also specify the password on the commandline, directly,
  but is insecure as command line arguments are visible via commands such as `ps`.

* `-T`, `--timings`:
  Dump command timings at the end of execution. This will display a histogram
  showing the latencies for the commands executed.

* `--certpath`=_PATH_:
  The path to the server's SSL certificate. This is typically required for SSL
  connectivity unless the certificate has already been added to the openssl
  installation on the system (only applicable with `couchbases://` scheme)

* `--keypath`=_PATH_:
  The path to the client SSL private key. This is typically required for SSL
  client certificate authentication. The certificate itself have to go first
  in chain specified by `certpath` (only applicable with `couchbases://` scheme)

* `-v`, `--verbose`:
  Specify more information to standard error about what the client is doing. You may
  specify this option multiple times for increased output detail.

* `--dump`:
  Dump verbose internal state after operations are done.

* `-D`, `--cparam`=OPTION=VALUE:
  Provide additional client options. Acceptable options can also be placed
  in the connection string, however this option is provided as a convenience.
  This option may be specified multiple times, each time specifying a key=value
  pair (for example, `-Doperation_timeout=10 -Dconfig_cache=/foo/bar/baz`).
  See [ADDITIONAL OPTIONS](#additional-options) for more information


<a name="additional-options"></a>
## ADDITIONAL OPTIONS

The following options may be included in the connection string (via the `-U`
option) as URI-style query params (e.g.
`couchbase://host/bucket?option1=value1&option2=value2`) or as individual
key=value pairs passed to the `-D` switch (e.g. `-Doption1=value1
-Doption2=value`). The `-D` will internally build the connection string,
and is provided as a convenience for options to be easily passed on the
command-line

* `operation_timeout=SECONDS`:
  Specify the operation timeout in seconds. This is the time the client will
  wait for an operation to complete before timing it out. The default is `2.5`
* `config_cache=PATH`:
  Enables the client to make use of a file based configuration cache rather
  than connecting for the bootstrap operation. If the file does not exist, the
  client will first connect to the cluster and then cache the bootstrap information
  in the file.
* `ssl=no_verify`:
  Temporarily disable certificate verification for SSL (only applicable with
  `couchbases://` scheme). This should only be used for quickly debugging SSL
  functionality.
* `sasl_mech_force=MECHANISM`:
  Force a specific _SASL_ mechanism to be used when performing the initial
  connection. This should only need to be modified for debugging purposes.
  The currently supported mechanisms are `PLAIN` and `CRAM-MD5`
* `bootstrap_on=<both,http,cccp>`:
  Specify the bootstrap protocol the client should use when attempting to connect
  to the cluster. Options are: `cccp`: Bootstrap using the Memcached protocol
  (supported on clusters 2.5 and greater); `http`: Bootstrap using the HTTP REST
  protocol (supported on any cluster version); and `both`: First attempt bootstrap
  over the Memcached protocol, and use the HTTP protocol if Memcached bootstrap fails.
  The default is `both`

<a name="commands"></a>
## COMMANDS

### help

Show list of accessible commands with short help.

### LOOKUP COMMANDS

The following options are supported for lookup commands:

* `-?`, `--help`:
   Display built-in help

* `-p`, `--path` _PATH_:
   JSON path in the document. Read more about paths in the [documentation][n1ql-paths].

* `-x`, `--xattr` _PATH_:
   JSON path in the extended attributes.

* `-d`, `--deleted`
   Access XATTR attributes of deleted documents.

### get

`get` [OPTIONS...] KEY...

Retrieve path from the item on the server.

This command requires that at least one key passed to it. If no paths are specified,
it will fetch full document.

### exists

`exists` [OPTIONS...] KEY...

Check if path exists in the item on the server.

This command requires that at least one key and one path are passed to it. Command has
alias `exist`.

### size

`size` [OPTIONS...] KEY...

Count the number of elements in an array or dictionary. The command has alias `get-count`.

This command requires that at least one key and one path passed to it.

### MUTATION COMMANDS

The mutation commands below support the following options:

* `-x`, `--xattr` _PATH=VALUE_:
   Store XATTR path (exentnded attributes).

* `-p`, `--path` _PATH=VALUE_:
   JSON path in the document. Read more about paths in the [documentation][n1ql-paths].

* `-e`, `--expiry` _TIME_:
   Expiration time in seconds. Relative (up to 30 days) or absolute (as Unix timestamp).

* `-i`, `--intermediates`:
   Create intermediate paths [Default=FALSE].

* `-u`, `--upsert`:
   Create document if it does not exist [Default=FALSE].

### replace

`replace` [OPTIONS...] KEY...

Replace the value at the specified path.

### dict-add

`dict-add` [OPTIONS...] KEY...

Add the value at the given path, if the given path does not exist.

### dict-upsert

`dict-upsert` [OPTIONS...] KEY...

Unconditionally set the value at the path.

### array-add-first

`array-add-first` [OPTIONS...] KEY...

Prepend the value(s) to the array. All array operations may accept multiple objects.
See examples below.

### array-add-last

`array-add-last` [OPTIONS...] KEY...

Append the value(s) to the array.

### array-add-unique

`array-add-unique` [OPTIONS...] KEY...

Add the value to the array indicated by the path, if the value is not already in the array.

### array-insert

`array-insert` [OPTIONS...] KEY...

Add the value at the given array index. Path must include index, e.g. `my.list[4]`

### counter

Increment or decrement an existing numeric path. The value must be 64-bit integer.

### set

`set` [OPTIONS...] KEY VALUE

Store document on the server.

This command requires exactly two argument, key and value. Command has alias `upsert`.
If no XATTR specified, the command will add its version to the path `_cbc.version`.

* `-x`, `--xattr` _PATH=VALUE_:
   Store XATTR path (exentnded attributes)

* `-e`, `--expiry` _TIME_:
   Expiration time in seconds. Relative (up to 30 days) or absolute (as Unix timestamp)

### remove

`remove` [OPTIONS...] KEY...

Remove path in the item on the server.

This command requires at least one key. If no paths specified, it will remove whole document.

* `-p`, `--path` _PATH_:
   JSON path in the document. Read more about paths in the [documentation][n1ql-paths].

* `-x`, `--xattr` _PATH_:
   JSON path in the extended attributes.

<a name="examples"></a>
## EXAMPLES

Connect to the server and wait for commands:

    cbc subdoc -u Administrator -P password -U couchbase://192.168.33.101/a_bucket
    subdoc>

Create new document `foo` with empty JSON document:

    subdoc> upsert foo {}
    foo                  CAS=0x14d766f19a720000

Fetch document with virtual XATTR, containing its metadata:

    subdoc> get -x $document foo
    foo                  CAS=0x14d766f19a720000
    0. Size=194, RC=0x00 Success (Not an error)
    {"CAS":"0x14d766f19a720000","vbucket_uuid":"0x0000ef56295d9206",
    "seqno":"0x0000000000000021","exptime":0,"value_bytes":2,
    "datatype":["json","xattr"],"deleted":false,"last_modified":"1501782188"}
    1. Size=2, RC=0x00 Success (Not an error)
    {}

Increment counter with path `site.hits` twice and set document expiration to 5 seconds.
Note that it sends `-i` option to create `site` JSON object automatically:

    subdoc> counter -e 5 -i -p site.hits=1 foo
    foo                  CAS=0x14d76764f3b60000
    0. Size=1, RC=0x00 Success (Not an error)
    1
    subdoc> counter -e 5 -p site.hits=1 foo
    foo                  CAS=0x14d76765ea2b0000
    0. Size=1, RC=0x00 Success (Not an error)
    2
    subdoc> get foo
    foo                  CAS=0x14d76765ea2b0000
    0. Size=19, RC=0x00 Success (Not an error)
    {"site":{"hits":2}}

    ... wait for 5 seconds ...

    subdoc> get foo
    foo                  The key does not exist on the server (0xd)

Add into array at path `ratings` value `5`. Note, that switch `-u` will ask server
to create the document if it does not exist:

    subdoc> array-add-first -u -p ratings=5 foo
    foo                  CAS=0x14d76814fbb00000
    0. Size=0, RC=0x00 Success (Not an error)
    subdoc> get foo
    foo                  CAS=0x14d76814fbb00000
    0. Size=15, RC=0x00 Success (Not an error)
    {"ratings":[5]}

Add several objects at once into `ratings` array:

    subdoc> array-add-last -p ratings=4,6,7 foo
    foo                  CAS=0x14d7687097c50000
    0. Size=0, RC=0x00 Success (Not an error)
    subdoc> get foo
    foo                  CAS=0x14d7687097c50000
    0. Size=21, RC=0x00 Success (Not an error)
    {"ratings":[5,4,6,7]}

Remove rating with index 2 in array (third number):

    subdoc> remove -p ratings[2] foo
    foo                  CAS=0x14d76885efd90000
    0. Size=0, RC=0x00 Success (Not an error)
    subdoc> get foo
    foo                  CAS=0x14d76885efd90000
    0. Size=19, RC=0x00 Success (Not an error)
    {"ratings":[5,4,7]}

Insert new rating instead of removed one:

    subdoc> array-insert -p ratings[2]=10 foo
    foo                  CAS=0x14d768a6daee0000
    0. Size=0, RC=0x00 Success (Not an error)
    subdoc> get foo
    foo                  CAS=0x14d768a6daee0000
    0. Size=22, RC=0x00 Success (Not an error)
    {"ratings":[5,4,10,7]}

Fetch number of the items in the `ratings` array:

    subdoc> size -p ratings foo
    foo                  CAS=0x14d768a6daee0000
    0. Size=1, RC=0x00 Success (Not an error)
    4

Create document with spaces (surround the value with single quotes,
and escape inner single quotes with backslash `\`):

    subdoc> upsert bar '{"text": "hello world"}'
    bar                  CAS=0x14d768bc25270000
    subdoc> get bar
    bar                  CAS=0x14d768bc25270000
    0. Size=23, RC=0x00 Success (Not an error)
    {"text": "hello world"}

## TODO

Port tool to Windows platform. Currently linenoise only supports UNIX-like
systems, but there are unofficial patches for Windows.

## INTERFACE STABILITY

This command's options should be considered uncommitted and are subject to change.

## SEE ALSO

cbc(1), cbcrc(4),
https://developer.couchbase.com/documentation/server/current/developer-guide/sub-doc-api.html

## HISTORY

The `cbc-subdoc` tool was first introduced in libcouchbase 2.7.7.

[n1ql-paths]: https://developer.couchbase.com/documentation/server/current/n1ql/n1ql-intro/queriesandresults.html#story-h2-2
