arangodb/Documentation/DocuBlocks/Rest/Graph/general_graph_create_http_examples.md

@startDocuBlock general_graph_create_http_examples @brief Create a new graph in the graph module.

@RESTHEADER{POST /_api/gharial, Create a graph}

@RESTDESCRIPTION The creation of a graph requires the name of the graph and a definition of its edges. See also edge definitions.

@RESTQUERYPARAMETERS

@RESTQUERYPARAM{waitForSync,boolean,optional} define if the request should wait until everything is synced to disc. Will change the success response code.

@RESTBODYPARAM{name,string,required,string} Name of the graph.

@RESTBODYPARAM{edgeDefinitions,array,optional,graph_edge_definition} An array of definitions for the relations of the graph. Each has the following type:

@RESTBODYPARAM{isSmart,boolean,optional,boolean} Define if the created graph should be smart. This only has effect in Enterprise Edition.

@RESTBODYPARAM{options,object,optional,post_api_gharial_create_opts} a JSON object to define options for creating collections within this graph. It can contain the following attributes:

@RESTSTRUCT{smartGraphAttribute,post_api_gharial_create_opts,string,optional,} Only has effect in Enterprise Edition and it is required if isSmart is true. The attribute name that is used to smartly shard the vertices of a graph. Every vertex in this SmartGraph has to have this attribute. Cannot be modified later.

@RESTSTRUCT{numberOfShards,post_api_gharial_create_opts,integer,required,} The number of shards that is used for every collection within this graph. Cannot be modified later.

@RESTSTRUCT{replicationFactor,post_api_gharial_create_opts,integer,required,} The replication factor used when initially creating collections for this graph.

@RESTSTRUCT{minReplicationFactor,post_api_gharial_create_opts,integer,optional,} The minimal replication factor used for every new collection in the graph. If one shard has less than minReplicationFactor copies, we cannot write to this shard, but to all others.

@RESTRETURNCODES

@RESTRETURNCODE{201} Is returned if the graph could be created and waitForSync is enabled for the _graphs collection, or given in the request. The response body contains the graph configuration that has been stored.

@RESTREPLYBODY{error,boolean,required,} Flag if there was an error (true) or not (false). It is false in this response.

@RESTREPLYBODY{code,integer,required,} The response code.

@RESTREPLYBODY{graph,object,required,graph_representation} The information about the newly created graph.

@RESTRETURNCODE{202} Is returned if the graph could be created and waitForSync is disabled for the _graphs collection and not given in the request. The response body contains the graph configuration that has been stored.

@RESTREPLYBODY{error,boolean,required,} Flag if there was an error (true) or not (false). It is false in this response.

@RESTREPLYBODY{code,integer,required,} The response code.

@RESTREPLYBODY{graph,object,required,graph_representation} The information about the newly created graph.

@RESTRETURNCODE{400} Returned if the request is in a wrong format.

@RESTREPLYBODY{error,boolean,required,} Flag if there was an error (true) or not (false). It is true in this response.

@RESTREPLYBODY{code,integer,required,} The response code.

@RESTREPLYBODY{errorNum,integer,required,} ArangoDB error number for the error that occurred.

@RESTREPLYBODY{errorMessage,string,required,} A message created for this error.

@RESTRETURNCODE{403} Returned if your user has insufficient rights. In order to create a graph you at least need to have the following privileges:

1. Administrate access on the Database.
2. Read Only access on every collection used within this graph.

@RESTREPLYBODY{error,boolean,required,} Flag if there was an error (true) or not (false). It is true in this response.

@RESTREPLYBODY{code,integer,required,} The response code.

@RESTREPLYBODY{errorNum,integer,required,} ArangoDB error number for the error that occurred.

@RESTREPLYBODY{errorMessage,string,required,} A message created for this error.

@RESTRETURNCODE{409} Returned if there is a conflict storing the graph. This can occur either if a graph with this name is already stored, or if there is one edge definition with a the same edge collection but a different signature used in any other graph.

@RESTREPLYBODY{error,boolean,required,} Flag if there was an error (true) or not (false). It is true in this response.

@RESTREPLYBODY{code,integer,required,} The response code.

@RESTREPLYBODY{errorNum,integer,required,} ArangoDB error number for the error that occurred.

@RESTREPLYBODY{errorMessage,string,required,} A message created for this error.

@EXAMPLES

@EXAMPLE_ARANGOSH_RUN{HttpGharialCreate} var graph = require("@arangodb/general-graph"); | if (graph._exists("myGraph")) { | graph._drop("myGraph", true); } var url = "/_api/gharial"; body = { name: "myGraph", edgeDefinitions: [{ collection: "edges", from: [ "startVertices" ], to: [ "endVertices" ] }] };

var response = logCurlRequest('POST', url, body);

assert(response.code === 202);

logJsonResponse(response);

graph._drop("myGraph", true); @END_EXAMPLE_ARANGOSH_RUN

@EXAMPLE_ARANGOSH_RUN{HttpGharialCreate2} var graph = require("@arangodb/general-graph"); | if (graph._exists("myGraph")) { | graph._drop("myGraph", true); } var url = "/_api/gharial"; body = { name: "myGraph", edgeDefinitions: [{ collection: "edges", from: [ "startVertices" ], to: [ "endVertices" ] }], isSmart: true, options: { replicationFactor: 2, numberOfShards: 9, smartGraphAttribute: "region" } };

var response = logCurlRequest('POST', url, body);

assert(response.code === 202);

logJsonResponse(response);

graph._drop("myGraph", true); @END_EXAMPLE_ARANGOSH_RUN

@endDocuBlock