Query API

This page describes the API for querying the data from Apica Ascent Observability stack

Getting data is a two step process

Create a Query Request

POST /v1/query will respond with a QueryId. Use that to access data

$ curl --location --request POST 'http://cluster-1.logiq.ai/v1/query' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--data-raw '{
    "applicationNames": [
        "tomcat"
    ],
    "filters": {
        "Message": {
            "values": [
                "user-369"
            ]
        }
    },
    "namespace": "production",
    "pageSize": 100,
    "startTime": "2020-05-10T17:55:20+05:30"
}'

{
    "queryId": "4c977d08-4acf-52b5-a99d-d8c0eb41fe4b-lgq"
}

Use GET /v1/data/{queryId}/next and GET /v1/data/{queryId}/previous to retrieve data.

$ curl 'https://cluster-1.logiq.ai/v1/data/4c977d08-4acf-52b5-a99d-d8c0eb41fe4b-lgq/next'
[...data]
$ curl 'https://cluster-1.logiq.ai/v1/data/4c977d08-4acf-52b5-a99d-d8c0eb41fe4b-lgq/previous'
[...data]

Query API Documentation

Version: 1.0

/v1/query

POST

Parameters

Name	Located in	Description	Required	Schema
body	body		Yes	queryQueryProperties

Responses

Code	Description	Schema
200	A successful response.	queryGetQueryResponse

/v1/data/{queryId}/next

GET

Parameters

Name	Located in	Description	Required	Schema
queryId	path		Yes	string

Responses

Code	Description	Schema
200	A successful response.	queryGetDataResponse
400	Invalid Request.
403	Token Expired.
404	Returned when the resource does not exist.

/v1/data/{queryId}/previous

GET

Parameters

Name	Located in	Description	Required	Schema
queryId	path		Yes	string
_internal	query		No	boolean (boolean)

Responses

Code	Description	Schema
200	A successful response.	queryGetDataResponse
400	Invalid Request.
403	Token Expired.
404	Returned when the resource does not exist.

protobufAny

A

if (any.UnpackTo(&foo)) {
  ...
}

Example 2: Pack and unpack a message in Java.

Foo foo = ...;
Any any = Any.pack(foo);
...
if (any.is(Foo.class)) {
  foo = any.unpack(Foo.class);
}

Example 3: Pack and unpack a message in Python.

foo = Foo(...)
any = Any()
any.Pack(foo)
...
if any.Is(Foo.DESCRIPTOR):
  any.Unpack(foo)
  ...

Example 4: Pack and unpack a message in Go

 foo := &pb.Foo{...}
 any, err := ptypes.MarshalAny(foo)
 ...
 foo := &pb.Foo{}
 if err := ptypes.UnmarshalAny(any, foo); err != nil {
   ...
 }

The pack methods provided by protobuf library will by default use 'type.googleapis.com/full.type.name' as the type URL and the unpack methods only use the fully qualified type name after the last '/' in the type URL, for example "foo.bar.com/x/y.z" will yield type name "y.z".

JSON

The JSON representation of an Any value uses the regular representation of the deserialized, embedded message, with an additional field @type which contains the type URL. Example:

package google.profile;
message Person {
  string first_name = 1;
  string last_name = 2;
}

{
  "@type": "type.googleapis.com/google.profile.Person",
  "firstName": <string>,
  "lastName": <string>
}

If the embedded message type is well-known and has a custom JSON representation, that representation will be embedded adding a field value which holds the custom JSON in addition to the @type field. Example (for message [google.protobuf.Duration][]):

{
  "@type": "type.googleapis.com/google.protobuf.Duration",
  "value": "1.212s"
}

queryFilterValues

Name	Type	Description	Required
values	[ string ]		No

queryGetDataResponse

Name	Type	Description	Required
data	[ querySysLogMessage ]		No
Status	string		No
remaining	integer		No

queryGetQueryResponse

Name	Type	Description	Required
queryId	string		No
info	[ queryQueryInfo ]		No
errors	[ queryQueryErrors ]		No
meta	object		No

queryOrderBy

Name	Type	Description	Required
queryOrderBy	string

queryQueryErrors

Name	Type	Description	Required
Key	string		No
message	string		No

queryQueryInfo

Name	Type	Description	Required
Key	string		No
message	string		No

queryQueryProperties

Name	Type	Description	Required
applicationNames	[ string ]		No
filters	object		No
namespace	string		No
pageSize	long		No
startTime	string		No
endTime	string		No
keyWord	string		No

querySysLogMessage

Name	Type	Description	Required
ID	string		No
AppName	string		No
Facility	string		No
FacilityString	string		No
Hostname	string		No
Message	string		No
MsgID	string		No
PartitionID	string		No
Priority	string		No
ProcID	string		No
Sender	string		No
Severity	string		No
SeverityString	string		No
StructuredData	string		No
Tag	string		No
Timestamp	string		No
Namespace	string		No

runtimeError

Name	Type	Description	Required
error	string		No
code	integer		No
message	string		No