ABIS APIs

This document defines the APIs specifications for various operations that ABIS can perform to integrate with MOSIP.

API specification version: 0.9

Published Date: February 05, 2021

Revision Note

Publish Date

Revision

May 07, 2020

This is the first formal publication of the interface as a version-ed specification. Earlier draft are superseded by this document. The interface is revamped to make it friendlier to programmers and also has a new method for conversion.

June 09, 2020

A note related to targetFPIR was added

June 26, 2020

New (code - 6, 8, 9, 10, 11, 12) for ABIS have been added.

August 04, 2020

Analytics section has been added to the overall response for Identify and the have been updated.

November 19, 2020

Note on encryption of biometric data share using referenceURL has been added.

February 05, 2021

Note on and was added for Insert Request

March 23, 2021

New (code - 17) for ABIS has been added.

May 3, 2021

The logic for encryption has been updated for ABIS data share URL

September 8, 2021

All possible error codes for Data Share URL has been added.

Introduction

An ABIS system that integrates with MOSIP should support the following operations.

Insert
Identify
Delete
Ping
Pending Jobs
Reference Count

All ABIS operations are via. a message queue and are asynchronous. The data sent in ABIS can be byte array or text based on a configure in registration processor.

Parameters

Common Parameters

Common parameters used for all ABIS operations:

Name

Description

Restrictions

Type

requestID

ID that is associated with each request sent to ABIS

ABIS should not use this ID in any other context outside the request

UUID

referenceID

ID of a single registration record. Registration record is maintained in MOSIP. This ID is the mapping between MOSIP and ABIS

None

UUID

referenceURL

URL to the biometrics data stored in MOSIP. This URL will have read only access

None

HTTPS URL

biometricType

Type of biometric data sent in the request

FMR/FIR/IIR

String

returnValue

Code for response

String

failureReason

Code for failure reason

String

Standard Return Codes

Code

Status

Success

Failed

Failure Reasons

Code

Reason

internal error - Unknown

aborted

unexpected error

unable to serve the request - invalid request structure

missing referenceId (in request body)

missing requestId (in request body)

unable to fetch biometric details (using referenceURL)

missing reference URL (in request body)

missing requesttime (in request body)

referenceId already exists (in ABIS)

CBEFF has no data

referenceId not found (in ABIS)

invalid version

invalid id

invalid requesttime format

invalid CBEFF format

data share URL has expired

ABIS Operations

The following operations are supported by MOSIP:

Insert
Identify
Delete
Ping
Pending Jobs
Reference Count

Insert

ABIS must get biometric data from referenceURL, process it and store it locally within the ABIS reference database. More details about the refernceURL is mentioned in our referenceURL section.
referenceId must not be active prior to this operation i.e., it must not have been used before this operation.
De-duplication must not be performed in this operation.
MOSIP will provide biometric data in CBEFF format to ABIS as a response of referenceURL and the data will be encrypted and encoded as mentioned below.

Request and Response Structre for Insert

Insert Request

{
  "id": "mosip.abis.insert",
  "version": "1.1",
  "requestId": "91234567-89AB-CDEF-0123-456789ABCDEF",
  "requesttime": "2020-03-29T07:01:24.692Z",
  "referenceId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "referenceURL": "https://{base_url}/v1/datashare/get/mpolicy-default-abis/mpartner-default-abis/mpartner-default-abismpolicy-default-abis20210205062412BlQo0rJB"
}

Success Response

{
  "id": "mosip.abis.insert",
  "requestId": "91234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "1"
}

Failure Response

{
  "id": "mosip.abis.insert",
  "requestId": "91234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "2",
  "failureReason": "7"
}

Reference URL

The reference URL is MOSIP's datashare URL which is generated based on a policy defined by MOISP's adopter.

The referenceURL is authenticated and authorized; ABIS needs to send a JWT token inside the request header COOKIE
The referenceURL will be active for a certain time as decided by the MOSIP adopter
The data sent in the referenceURL will be encrypted

Authentication Token

As mentioned above in order to access the request URL the ABIS system needs to send a JWT token inside the request header COOKIE. In order to get the token ABIS needs to call MOSIP's AuthN & AuthZ API with Client ID & Secret Key by passing the credentials (clientid, secretkey and appid) which would be provided by the System Integrator (SI).

Below is the sample API details for getting the authentication token. More details about the API is available in our AuthN & AuthZ document.

Sample Request URL

POST https://{base_url}/v1/authmanager/authenticate/clientidsecretkey

Sample Request Body

{
  "id": "string",
  "metadata": {},
  "request": {
    "appId": "regproc",
    "clientId": "mosip-regproc-client",
    "secretKey": "abc123"
  },
  "requesttime": "2018-12-10T06:12:52.994Z",
  "version": "string"
}

Sample Response

Response Cookie:

Set-Cookie 
authorization: eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICJyanpjdUZPTmpBLWZRRDZYVVpYeFlldk5UZWtYcnZKVXN1RG5TeHJjZ0tZIn0.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.ntez3ZkbDsjWi467JVj9d3kfktbUc7e6zQhHv0bVJfmiQA0N1QGyXAiZdqZrHj3cgFo0Lft54jgEtCGZZAma8nAw9IDICet9TA2A_u5hZ3oAq6HwYMS1pWb43jx5K9RRr_Yc-hdNnma754KzHhJgU1A7e_y0m88MT_oohHpRQ16jItEfC0AUQUvOAsxPwn-mmhu4uFFEq9e05ftBDIEBr24t-8feWN92uCJVMrSYHHjFL2ayg03I4Zkw1IupfLa-HACIlIToUmAk00aPxLtyWMFpOHVcLKBS2i9gEeqCEiUzklwuEp0B4aCqk5_M-Ng2X6VcGsCUJ8ACWRG4lCQQYA

{
  "id": "string",
  "version": "string",
  "responsetime": "2021-02-05T06:31:36.885Z",
  "metadata": null,
  "response": {
    "status": "Success",
    "message": "Clientid and Token combination had been validated successfully"
  },
  "errors": null
}

DataShare URL

Below is the sample API detail for reference URL.

Sample Request URL

GET https://{base_url}/v1/datashare/get/mpolicy-default-abis/mpartner-default-abis/mpartner-default-abismpolicy-default-abis20210205062412BlQo0rJB

Sample Encrypted Response

The sample encrypted datashare is available here: encrypted-datashare.txt

The P12 file for the above encrypted CBEFF file is available here: cbeff.p12.

The other details for the p12 file are:

certificate.keystore=PKCS12
certificate.alias=cbeff
certificate.password=password

The structure of the encrypted data downloaded from referenceURL in MOSIP 1.1.5.5 or prior versions

The data downloaded would be base64 encoded. Hence, after decoding the data will be in the below format. It will be divided in two Parts after splitting using #KEY_SPLITTER#.

Encrypted Key Data

KEY_SPLITTER

Encrypted Actual Data

Block 1

#KEY_SPLITTER#

Block 2

Block 1:

Block 1, i.e. the encrypted key data is again split into two parts,

The first part is the Certificate Thumbprint i.e. the key identifier which is the first 32 bytes in Block 1.
The second part is the Encrypted Random AES Key which is encrypted with RSA OAEP - SHA256-MFG1. This cosistutes the remaining 256 bytes of Block 1.

Block 2:

Block 2, i.e. the encrypted actual data is again split into two parts,

The 1st part is the Encrypted data, encrypted using AES GCM PKCS5Padding.
The 2nd part is IV/Nonce i.e. the last 32 bytes appended after encrypted data.

The structure of the encrypted data downloaded from referenceURL in MOSIP 1.2.0 or later versions

The data downloaded would be URL safe base64 encoded. Hence, after decoding the data will be in the below format. It will be divided in two Parts after splitting using #KEY_SPLITTER#.

Encrypted Key Data

KEY_SPLITTER

Encrypted Actual Data

Block 1

#KEY_SPLITTER#

Block 2

Block 1:

Block 1, i.e. the encrypted key data is again split into three parts,

The 1st part is VER_BYTES (version bytes). The Current version constant is set as VER_R2 and this is present in the first 6 bytes of Block 1.
The 2nd part is the Certificate Thumbprint i.e. the key identifier which is present in the next 32 bytes after VER_BYTES.
The 3rd part is the Encrypted Random AES Key, encrypted with the RSA OAEP - SHA256-MFG1. This cosistutes the remaining 256 bytes of Block 1.

Block 2:

Block 2, i.e. the encrypted actual data is again split into two parts,

The 1st part is the random 32 bytes which will be used as AAD in AES encryption(first 32 bytes). From this 32 bytes AAD data, the first 12 bytes is IV/Nonce.
The 2nd part is the encrypted data which is encrypted using AES GCM PKCS5Padding.

Sample Response after Decryption

<?xml version="1.0" encoding="UTF-8"?>
<BIR xmlns="http://standards.iso.org/iso-iec/19785/-3/ed-2/">
    <BIRInfo>
        <Integrity>false</Integrity>
    </BIRInfo>
    <!-- right index finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.209Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Right IndexFinger</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- right middle finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Right MiddleFinger</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- right ring finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Right RingFinger</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- right little finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Right LittleFinger</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- left index finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Left IndexFinger</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- left middle finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Left MiddleFinger</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- left ring finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Left RingFinger</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- left little finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Left LittleFinger</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- right thumb finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Right Thumb</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- left thumb finger -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>7</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Finger</Type>
            <Subtype>Left Thumb</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- face -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>8</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Face</Type>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- right iris -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>9</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Iris</Type>
            <Subtype>Right</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
    <!-- left iris -->
    <BIR>
        <Version>
            <Major>1</Major>
            <Minor>1</Minor>
        </Version>
        <CBEFFVersion>
            <Major>1</Major>
            <Minor>1</Minor>
        </CBEFFVersion>
        <BIRInfo>
            <Integrity>false</Integrity>
        </BIRInfo>
        <BDBInfo>
            <Format>
                <Organization>Mosip</Organization>
                <Type>9</Type>
            </Format>
            <CreationDate>2019-06-27T13:40:06.211Z</CreationDate>
            <Type>Iris</Type>
            <Subtype>Left</Subtype>
            <Level>Raw</Level>
            <Purpose>Enroll</Purpose>
            <Quality>
                <Algorithm>
                    <Organization>HMAC</Organization>
                    <Type>SHA-256</Type>
                </Algorithm>
                <Score>100</Score>
            </Quality>
        </BDBInfo>
        <BDB>RklSAD...</BDB>
    </BIR>
</BIR>

Sample Response in case of Authentication Failure

{
  "id": null,
  "version": null,
  "responsetime": "2021-02-05T06:29:48.257Z",
  "metadata": null,
  "response": null,
  "errors": [
    {
      "errorCode": "KER-ATH-401",
      "message": "Authentication Failed"
    }
  ]
}

All Possible Error codes and Messages from Datashare URL

Error Code

Error Message

DAT-SER-003

File does not exists or File is empty

DAT-SER-006

Data share not found

DAT-SER-006

Data share usage expired

KER-ATH-401

Authentication Failed

KER-ATH-403

Forbidden

Please note that, for all the functional failures MOSIP sends response code as 200.

Identify

All Insert requests added to the queue earlier must be serviced by ABIS when performing an Identify request.
Identify request provides a 1:N comparison. The given input is compared either against the gallery passed or if the gallery is not specified the entire database.
The input for comparison can be provided by referenceID or referenceURL.
- If the referenceID is given it is used as the preferred option. The given referenceID must be existing in the ABIS database else ABIS will throw and error.
- If the referenceID is omitted or NULL and the referenceURL is passed the ABIS retrieves the biometrics provided in the referenceURL and compares the same against either a gallery or its database.
- If in case, both referenceID and referenceURL are missing ABIS throws an error.

We are not using the referenceURL in Identify request for our current implementation. Hence, it will be an empty string for Identify request. MOSIP adopters can have customized work-flows where the referenceURL can be used.

Identify request should give all candidates which are considered as a match based on ABIS thresholds.
This request should not match against referenceID that is not in the reference database.
The response now has a section for analytics that contains key value pairs. Values can be JSON objects also. The contents of the analytics section will be agreed upon by the MOSIP adopter with the ABIS provider. Scores are also moved to this section and are not mandatory response parameters any more.
Ordering or ranking of results is not explicitly specified and can be agreed upon between the MOSIP adopter and the ABIS provider.
The flags section of the request can be used to customize or control ABIS behavior by sending specific key value pairs.
"targetFPIR" or "maxResults" are examples of such flags that can alter the ABIS behavior. These are optional attributes for MOSIP during an identify request. MOSIP expects the adopters to define these parameters based on the accuracy expectations and the work-flow requirements. These can be set at the ABIS configuration level and need not be part of the individual request at all.

To give an example, please find the following calculation for targetFPIR - which is the error rate at which identification requests are expected to return non-empty candidate list.

round (-10 * log10 (target false positive identification rate))

With this calculation:

Target False Positive Identification Rate

targetFPIR

1 in 1,000

1 in 10,000

1 in 100,000

Identify Request

{
  "id": "mosip.abis.identify",
  "version": "1.1",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "requesttime": "2020-03-29T07:01:24.692Z",
  "referenceId": "987654321-89AB-CDEF-0123-456789ABCDEF",
  "referenceURL": "",//will be an empty string, if not used
  "flags": { //optional
    //maxResults is an example and not a prescribed flag
	"maxResults": "10", 
	//targetFPIR is an example and not a prescribed flag
	"targetFPIR": "30",
    //there can be more following this	
	"flag1": "value1",
	"flag2": "value2" 
  },
  "gallery": {
    "referenceIds": [
      {
        "referenceId": "2abe7b7d-b58a-4466-a006-c79297281123"
      }, 
      {
        "referenceId": "7acce7b7d-b58a-4466-a006-c79297281456"
      }, 
      {
        "referenceId": "3bce7b7d-b58a-4466-a006-c79297281678"
      }, 
      {
        "referenceId": "5cce7b7d-b58a-4466-a006-c79297281098"
      }, 
      {
        "referenceId": "2cce7b7d-b58a-4466-a006-c79297281321"
      } 
    ]
  }
}

Success Response

{
  "id": "mosip.abis.identify",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "1",
  "candidateList": {
    "count": "1",
    "candidates": [
      {
        "referenceId": "7acce7b7d-b58a-4466-a006-c79297281456",
        "analytics": {
		  //internalScore is an example and not prescribed
		  "internalScore": "112", 
		  //confidence is an example and not prescribed
          "confidence": "90",
		  //there can be more following this	
		  "key1": "value1",
		  "key2": "value2"
        },
		// modality wise analytics
        "modalities": [ 
          {
            "biometricType": "FIR",
            "analytics": {
			  "confidence": "90",
              "internalScore": "112",
			  "key1": "value1",
			  "key2": "value2"
            }
          },
		  {
            "biometricType": "IIR",
            "analytics": {
			  "confidence": "90",
              "internalScore": "112",
			  "key1": "value1",
			  "key2": "value2"
            }
          },
		  {
            "biometricType": "FID",
            "analytics": {
			  "confidence": "90",
              "internalScore": "112",
			  "key1": "value1",
			  "key2": "value2"
            }
          }
        ]
      }
    ]
    "analytics": {
      //This is a optional section
      //Data in this section can be agreed upon between the MOSIP adopter and the ABIS Provider
	}
  }
}

Failure Response

{
  "id": "mosip.id.identify",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "2",
  "failureReason": "7"
}

Delete

Removes only the entry referred by the referenceId.
This operation can be used to remove duplicates found by Identify.

Delete Request

{
  "id": "mosip.abis.delete",
  "version": "1.1",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "requesttime": "2020-03-29T07:01:24.692Z",
  "referenceId": "7acce7b7d-b58a-4466-a006-c79297281456"
}

Success response

{
  "id": "mosip.abis.delete",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "1"
}

Failure response

{
  "id": "mosip.abis.delete",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "2",
  "failureReason": "1"
}

Ping

A Ping request should respond with a response on the liveness of the ABIS system.

Ping Request

{
  "id": "mosip.abis.ping",
  "version": "1.1",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "requesttime": "2020-03-29T07:01:24.692Z",
}

Success response

{
  "id": "mosip.abis.ping",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "1"
}

Failure response

{
  "id": "mosip.abis.ping",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "2",
  "failureReason": "1"
}

Pending Jobs

ABIS responds with the count of requests that are still pending.

Pending Jobs Request

{
  "id": "mosip.abis.pendingJobs",
  "version": "1.1",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "requesttime": "2020-03-29T07:01:24.692Z",
}

Success Response

{
  "id": "mosip.abis.pendingJobs",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "jobscount": "10",
  "returnValue": "1"
}

Failure response

{
  "id": "mosip.abis.pendingJobs",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "2",
  "failureReason": "1"
}

Reference Count

ABIS will send a count of records in the reference database

Reference Count Request

{
  "id": "mosip.abis.referenceCount",
  "version": "1.1",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "requesttime": "2020-03-29T07:01:24.692Z",
}

Success Response

{
  "id": "mosip.abis.referenceCount",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "count": "10",
  "returnValue": "1"
}

Failure response

{
  "id": "mosip.abis.referenceCount",
  "requestId": "01234567-89AB-CDEF-0123-456789ABCDEF",
  "responsetime": "2020-03-29T07:01:24.692Z",
  "returnValue": "2",
  "failureReason": "1"
}

References

Biometric Specification to know about biometric specification in MOSIP
CBEFF XML to how MOSIP stores biometric data
Authentication and Authorization API to get the JWT token
MOSIP's de-duplication process for deatils about De-Duplication process in MOSIP