slouch.api — com.balloneij/slouch 0.0.0

Database clj protocol

doc clj

(doc db ddoc-view k)

(doc db ddoc-view k opts)

Like view, but returns the document of the first row matching key k, or nil if no matches exist. Throws if the design document or view does not exist.

Equivalent to:

(-> (view db ddoc-view (merge opts {:key k :limit 1 :include-docs? true})) :rows first :doc)

See view documentation for info on query options.

view clj

(view db ddoc-view)

(view db ddoc-view opts)

Queries a view. Returns a map containing :offset, :rows, and :total-rows. Throws if the design doc or view does not exist.

ddoc-view specifies the design document and view name. It can take one of two forms: keyword - :design-doc/view-name - For example, :users/by-id or (keyword "users" "by-id"). vector - ["design-doc" "view-name"] - For example, ["users" "by-id"].

opts change the query: :conflicts? - Include conflicts information in response. Ignored if include-docs isn’t true. Default is false. :descending? - Return the documents in descending order by key. Default is false. :end-key - Stop returning records when the specified key is reached. :end-key-doc-id - Stop returning records when the specified document ID is reached. Ignored if end-key is not set. :group? - Group the results using the reduce function to a group or single row. Implies reduce is true and the maximum group-level. Default is false. :group-level - Specify the group level to be used. Implies group is true. :include-docs? - Include the associated document with each row. Default is false. :inclusive-end? - Specifies whether the specified end key should be included in the result. Default is true. :key - Return only documents that match the specified key. :keys - Return only documents where the key matches one of the keys specified in the array. :limit - Limit the number of the returned documents to the specified number. :reduce? - Use the reduction function. Default is true when a reduce function is defined. :skip - Skip this number of records before starting to return the results. Default is 0. :sorted? - Sort returned rows. Setting this to false offers a performance boost. The total-rows and offset fields are not available when this is set to false. Default is true. :stable? - Whether or not the view results should be returned from a stable set of shards. Default is false. :start-key - Return records starting with the specified key. :start-key-doc-id - Return records starting with the specified document ID. Ignored if startkey is not set. :update - Whether or not the view in question should be updated prior to responding to the user. Supported values: true, false, :lazy. Default is true. :update-seq? - Whether to include in the response an update-seq value indicating the sequence id of the database the view reflects. Default is false.

row clj

(row db ddoc-view k)

(row db ddoc-view k opts)

Like view, but returns the first row matching key k, or nil if no matches exist. Throws if the design document or view does not exist.

Equivalent to: (first (:rows (view db ddoc-view opts)))

See view documentation for info on query options.

remove clj

(remove db id)

(remove db id rev)

Removes a document. Returns true if the document was deleted or no longer exists. Returns false if the provided rev is old.

insert clj

(insert db value)

(insert db id value)

Inserts a document. Returns the inserted document. Throws if the provided id already exists.

get clj

(get db id)

Gets a document if it exists, else returns nil.

docs clj

(docs db ddoc-view)

(docs db ddoc-view opts)

Like view, but only returns documents from the maching rows. Throws if the design document or view does not exist.

Equivalent to: (->> (view db ddoc-view (merge opts {:include-docs? true})) :rows (map :doc))

See view documentation for info on query options.

rows clj

(rows db ddoc-view)

(rows db ddoc-view opts)

Like view, but only returns rows. Throws if the design document or view does not exist.

Equivalent to: (:rows (view db ddoc-view opts))

See view documentation for info on query options.

get-or-insert clj

(get-or-insert db id value-fn)

Gets a document if it exists, else computes a value using value-fn and inserts a new one. Returns the existing or inserted document.

database clj

(database {:as config
           :keys [url name username password insecure? pool-threads pool-timeout
                  connection-timeout socket-timeout session-auth-threshold
                  session-timing-error feed-refresh-interval cache-doc-ttl]
           :or {session-auth-threshold 60
                feed-refresh-interval 10000
                insecure? false
                pool-timeout 60
                pool-threads 8
                socket-timeout 5000
                connection-timeout 5000
                cache-doc-ttl 15
                session-timing-error 30}})

Configuration :url - URL to CouchDB instance :name - Name of the database :username - CouchDB username :password - CouchDB password :insecure? - Connect to CouchDB regardless of an unsafe HTTPS connection default: false :pool-threads - Max number of threads used to connect to CouchDB default: 8 :pool-timeout - Seconds to keep connections open before automatically closing them. default: 60 :connection-timeout - Milliseconds to wait before aborting a new connection attempt, or 0, meaning no timeout default: 5000 :socket-timeout - Milliseconds of data silence to wait before abandoning an established connection, or 0, meaning no timeout default: 5000 :session-auth-threshold - Seconds of session time remaining before reauthenticating default: 60 :session-timing-error - Seconds remaining before considering a session expired. At a minimum, consider setting this value greater than socket-timeout + connection-timeout default: 30 :feed-refresh-interval - Milliseconds to keep a continuous connection open on /db/_changes to watch for updates to documents stored in cache. A lower interval means cache documents are added/removed to the watch more quickly to the watch list, at the expense of reopening connections more frequently. default: 10000 :cache-doc-ttl - Minutes to keep documents stored in memory default: 15

document clj

(document db id)

Document clj protocol

exists? clj

(exists? doc)

Returns true if the document exists.

id clj

(id doc)

Returns the document id.

rev clj

(rev doc)

Returns the document revision or nil if the document no longer exists.

value clj

(value doc)

Similar to (deref doc), but removes CouchDB metadata keys like :_rev and :_id

with-database clj macro

(with-database binding & body)

Same as (with-open [sym (database config)])