# Hello Crate

To get started let’s have a quick look on how Crate can be accessed via the bare HTTP-Endpoints. This tutorial uses the Curl command-line utility to do the requests.

To check if Crate is running, we can do a GET on the root, which displays basic system information:

    sh$ curl -sS 'localhost:9200/?pretty=1'
    {
      "ok" : true,
      "status" : 200,
      "name" : "...",
      "version" : {
        "number" : "0.90.5",
        "build_hash" : "${buildNumber}",
        "build_timestamp" : "NA",
        "build_snapshot" : false,
        "lucene_version" : "4.4"
      },
      "tagline" : "You Know, for Search"
    }

Note

The `pretty` query parameter used above tells Crate to pretty print results. This works for every endpoint.

In this guide we want to create a database for quotes. Let’s create the index and the `quote` type, which will contain information about the author of the quote and the quote itself:

    sh$ curl -sSX PUT 'localhost:9200/quotes?pretty' -d @- <<EOF
    ... {
    ... "mappings" : {
    ...  "default": {
    ...   "properties": {
    ...     "author": {
    ...       "type": "string",
    ...       "index": "not_analyzed"
    ...     },
    ...     "content": {
    ...      "type": "string"
    ... }}}}}
    ... EOF
    {
      "ok" : true,
      "acknowledged" : true
    }

Now we can add the first quote to the database:

    sh$ curl -sSX POST 'localhost:9200/_sql?pretty=1&refresh=true' -d @- <<EOF
    ... {
    ... "stmt": "insert into quotes values('Me', 'Hello Crate!')"
    ... }
    ... EOF
    {
      "cols" : [ ],
      "rows" : [ ]
    }

Refresh in order to make the result immediatly visible in subsequent queries:

    sh$ curl -sSX POST 'localhost:9200/quotes/_refresh?pretty=1'
    {
      "ok" : true,
      "_shards" : {
        "total" : 10,
        "successful" : 5,
        "failed" : 0
      }
    }

We can now view what we have just inserted like this:

    sh$ curl -sSX POST 'localhost:9200/_sql?pretty=1' -d @- <<EOF
    ... {
    ... "stmt": "select author, content from quotes order by author"
    ... }
    ... EOF
    {
      "cols" : [ "author", "content" ],
      "rows" : [ [ "Me", "Hello Crate!" ] ]
    }

Let’s add another quote:

    sh$ curl -sSX POST 'localhost:9200/_sql?pretty=1&refresh=true' -d @- <<EOF
    ... {
    ... "stmt": "insert into quotes values('Ford', 'Don''t panic... don''t panic...')"
    ... }
    ... EOF
    {
      "cols" : [ ],
      "rows" : [ ]
    }

Refresh again:

    sh$ curl -sSX POST 'localhost:9200/quotes/_refresh?pretty=1'
    {
      "ok" : true,
      "_shards" : {
        "total" : 10,
        "successful" : 5,
        "failed" : 0
      }
    }

Looking up only Ford’s quotes:

    sh$ curl -sSX POST 'localhost:9200/_sql?pretty=1' -d @- <<EOF
    ... {
    ... "stmt": "select content from quotes where author='Ford'"
    ... }
    ... EOF
    {
      "cols" : [ "content" ],
      "rows" : [ [ "Don't panic... don't panic..." ] ]
    }