/Authentication/login

IMPACT DEMO API

https://einvoiceapiuat.impact.gr

POST

1.3.1 Authentication

Unauthenticated communication with EINVOICING API is forbidden. There are 3 authentication methods. The first one is via APIKey validation, the second is with Bearer Token and the third is the SSO.

APIKEY VALIDATION

To send or receive documents to / from the API, you will need to include an authentication token to the request. Authentication tokens are sent via the request’s header (APIKey:{VALUE}). Authentication tokens are produced by the EINVOICING Department.

Request

Header Params

Body Params application/json

Example

{
    "vat": "string",
    "key": "string"
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'https://einvoiceapiuat.impact.gr/Authentication/login' \
--header 'apiKey;' \
--header 'Content-Type: application/json' \
--data-raw '{
    "vat": "string",
    "key": "string"
}'

Responses

🟢200OK

application/json

Body

Example

{
    "accessToken": "string",
    "refreshToken": {
        "token": "string",
        "expires": "2019-08-24T14:15:22Z"
    }
}

🟠400Bad Request

Modified at 2025-06-12 10:02:14

API Key Authentication

Bearer Token Authentication

/Authentication/login

1.3.1 Authentication#

Request

Request Code Samples

Responses

1.3.1 Authentication