Help Center/ ROMA Connect/ API Reference/ Service Integration APIs/ Querying Metrics/ Querying Statistics on Application Request Metrics

Updated on 2025-10-22 GMT+08:00

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Querying Statistics on Application Request Metrics

Function

This API is used to query the request metrics for all integration applications or for one application within a specified period.

This function is restricted for use. If you have any questions, contact technical support.

Constraints

If the invoking times out or the error message "request statistics error" is returned, switch to another mode or shorten the statistics collection duration.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions. For details about the required permissions, see Permissions Policies and Supported Actions.

URI

GET /v2/{project_id}/apic/instances/{instance_id}/statistics/roma-app

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the project ID, see Appendix > Obtaining a Project ID in the ROMA Connect API Reference.
instance_id	Yes	String	Instance ID.

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
mode	No	String	Query mode. The default value is INSTANCE. ALL: Queries all applications in an instance. The master account permission is required. APP: Queries a specified application. INSTANCE: Queries an instance. Note: If mode is set to APP or ALL, the fields cycle, api_id, group_id, roma_app_id, provider, register_time and status are not returned in the response. If cycle is set to HOUR or DAY, req_time is not returned in the response. If both consumer_app_id and roma_app_id are not set, the master account permission is required.
consumer_app_id	No	String	Application ID. This parameter is mandatory when mode is set to APP.
roma_app_id	No	String	Integration application ID. This parameter is mandatory when mode is set to INSTANCE.
cycle	No	String	Statistical period. minute hour day If cycle is set to minute, data of the last 30 days can be queried. If cycle is set to hour, data of the last 180 days can be queried. If cycle is set to day, data of the last 360 days can be queried.
start_time	No	String	Start time, for example, 2020-06-18 10:00:01.
end_time	No	String	End time, for example, 2020-06-18 23:00:00.
duration	No	String	The measurement duration is in the format of "integer+unit (m or h)". m indicates minute, and h indicates hour. The combination of hour and minute is supported. For example, 1h or 2h45m. If both start_time and end_time are specified, the query time range is [start_time, end_time]. If start_time does not exist, but end_time and duration exist and are valid, the query time range is [end_time – duration, end_time]. If start_time and end_time do not exist, duration exists and is valid, and end_time is now, the query time range is [end_time – duration, end_time]. If end_time does not exist, start_time and duration exist and are valid, and end_time is now, the query time range is [end_time – duration, end_time]. If start_time, end_time, and duration do not exist, the error message "missing time range parameters" is displayed.

Request Parameters

**Table 3** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token, which can be obtained by calling the IAM API (value of X-Subject-Token in the response header).

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
code	String	Response code.
start_time	Long	Timestamp (UTC) of the statistics start time.
end_time	Long	End time (UTC).
list	Array of StatisticsRomaApp objects	List of KPIs in different periods in the integration application dimension.

**Table 5** StatisticsRomaApp
Parameter	Type	Description
max_latency	Integer	Maximum latency.
avg_latency	Float	Average latency.
req_count	Integer	Total number of requests.
req_count2xx	Integer	Total number of 2xx response codes.
req_count4xx	Integer	Total number of 4xx response codes.
req_count5xx	Integer	Total number of 5xx response codes.
req_count_error	Integer	Number of errors.
max_inner_latency	Integer	Maximum gateway latency.
avg_inner_latency	Float	Average gateway latency.
max_backend_latency	Integer	Maximum backend latency.
avg_backend_latency	Float	Average backend latency.
output_throughput	Long	Downstream throughput (bytes).
input_throughput	Long	Upstream throughput (bytes).
current_minute	Long	Current timestamp in UTC format.
req_time	String	Request time.
cycle	String	Period for query.
roma_app_id	String	Integration application ID.
provider	String	Project ID.
register_time	String	Registration time.
status	Integer	Status: 1: scheduling, data not reported to Cloud Eye yet 2: data successfully reported to Cloud Eye Reserved field, not supported yet.

Status code: 400

**Table 6** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 401

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 403

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 404

**Table 9** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 500

**Table 10** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Example Requests

None

Example Responses

Status code: 200

{
  "code" : "APIG.0000",
  "start_time" : 1599112186,
  "end_time" : 1599616186,
  "list" : [ {
    "current_minute" : 1599552000,
    "max_latency" : 0,
    "avg_latency" : 0,
    "max_inner_latency" : 0,
    "avg_inner_latency" : 0,
    "max_backend_latency" : 0,
    "avg_backend_latency" : 0,
    "req_count" : 5,
    "req_count2xx" : 0,
    "req_count4xx" : 0,
    "req_count5xx" : 5,
    "req_count_error" : 5,
    "output_throughput" : 1695,
    "input_throughput" : 2990,
    "req_time" : ""
  } ]
}

Status code: 400

Bad Request

{
  "error_code" : "APIG.2012",
  "error_msg" : "Invalid parameter value,parameterName:api_id. Please refer to the support documentation"
}

Status code: 401

Unauthorized

{
  "error_code" : "APIG.1002",
  "error_msg" : "Incorrect token or token resolution failed"
}

Status code: 403

Forbidden

{
  "error_code" : "APIG.1005",
  "error_msg" : "No permissions to request this method"
}

Status code: 404

Not Found

{
  "error_code" : "APIG.3002",
  "error_msg" : "API 39bce6d25a3f470e8cf7b2c97174f7d9 does not exist"
}

Status code: 500

Internal Server Error

{
  "error_code" : "APIG.9999",
  "error_msg" : "System error"
}

Status Codes

Status Code	Description
200	OK
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
500	Internal Server Error

Error Codes

See Error Codes.

Parent topic: Querying Metrics

Previous topic: Querying Top N Metrics of Difference Application Requests

Next topic: Querying Top N Metrics of All Integration Applications

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