Postman Echo is a service you can use to test your REST clients and make sample API calls. It provides endpoints for GET, POST, PUT, PATCH various auth mechanisms and other utility endpoints.

The documentation for the endpoints as well as example responses can be found at https://postman-echo.com Mocking with examples

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Setting file settings.properties

Collection is available here: Postman_Echo.postman_collection.json

Test run collection result is available here: Postman_Echo.postman_test_run.json

All local tests passed to postman-echo.com:

• Passed 69 - Basic Auth, Requests: GET,POST,PATCH,HEAD,DELETE, Time Utils etc...
• Failed 15 - Auth Digest/ Hawk / Verify Signature not working anymore, Cookie, Stream and all text/html Content-Type
• Skipped 0

curl --location 'https://postman-echo.com/get?foo1=bar1&foo2=bar2'

curl 'http://localhost:8082/nexus-backend/api/get?foo1=bar1&foo2=bar2'

curl -X POST 'https://postman-echo.com/post?hand=wave'

curl -X POST 'http://localhost:8082/nexus-backend/api/post?hand=wave'

curl -X POST 'http://localhost:8082/nexus-backend/api/post?foo1=bar1&ffo2=bar2'

curl -v --location 'https://postman-echo.com/post' --data-urlencode 'foo1=bar1' --data-urlencode 'foo2=bar2'

curl --location 'http://localhost:8082/nexus-backend/api/post' -H 'Content-Type: application/json' -d '{"foo1": "bar1", "foo2": "bar2"}'

curl -X POST 'http://localhost:8082/nexus-backend/api/post' -H 'Content-Type: application/json' -d '{"foo1": "bar1", "foo2": "bar2"}'

curl -X POST 'http://localhost:8082/nexus-backend/api/post' -H 'Content-Type: application/x-www-form-urlencoded' -d 'foo1=bar1&foo2=bar2'

curl -X POST 'http://localhost:8082/nexus-backend/api/post' --header 'Content-Type: application/x-www-form-urlencoded' --data-urlencode 'foo1=bar1' --data-urlencode 'foo2=bar2'

curl --location 'https://postman-echo.com/post' --header 'Content-Type: text/plain' --data 'Duis posuere augue vel cursus pharetra'

curl --location 'http://localhost:8082/nexus-backend/api/post' --header 'Content-Type: text/plain' --data 'Duis posuere augue vel cursus pharetra.'

curl https://postman-echo.com/digest-auth

curl http://localhost:8082/nexus-backend/api/digest-auth

{"code":"500","level":"ERROR","source":"ERROR-NEXUS-REST-BACKEND","text":"An internal error occurred on the backend. URI: /digest-auth Reason id '401 UNAUTHORIZED'"}

curl --location 'https://postman-echo.com/basic-auth' --header 'Authorization: Basic cG9zdG1hbjpwYXNzd29yZA=='

curl 'http://localhost:8082/nexus-backend/api/basic-auth' -H 'Authorization: Basic cG9zdG1hbjpwYXNzd29yZA==

curl --location --request PUT 'https://postman-echo.com/put' --header 'Content-Type: text/plain' --data 'Etiam mi lacus, cursus vitae felis'

curl --location --request PUT 'http://localhost:8082/nexus-backend/api/put' --header 'Content-Type: text/plain' --data 'Etiam mi lacus, cursus vitae felis'

curl --location --request PATCH 'https://postman-echo.com/patch' --header 'Content-Type: text/plain' --data 'Curabitur auctor, elit nec'

curl --location --request PATCH 'http://localhost:8082/nexus-backend/api/patch' --header 'Content-Type: text/plain' --data 'Curabitur auctor, elit nec'

curl --location --request DELETE 'https://postman-echo.com/delete' --header 'Content-Type: text/plain' --data 'Donec fermentum, nisi sed cursus'

curl --location --request DELETE 'http://localhost:8082/nexus-backend/api/delete' --header 'Content-Type: text/plain' --data 'Donec fermentum, nisi sed cursus'

curl --location 'https://postman-echo.com/headers' -header 'my-sample-header: Lorem ipsum dolor sit amet'

curl 'http://localhost:8082/nexus-backend/api/headers' -H 'my-sample-header: Lorem ipsum dolor sit amet'

curl https://postman-echo.com/gzip --output gzip.echo.txt

curl http://localhost:8082/nexus-backend/api/gzip --output gzip.echo.txt

{"gzipped":true,"headers":{"host":"localhost","x-request-start":"t=1721076856.560","x-forwarded-proto":"https","x-forwarded-port":"443","x-amzn-trace-id":"Root=1-66958c78-235d73c85e60e17479a7e127","origin":"http://localhost:8082/nexus-backend/api/gzip","user-agent":"curl/7.66.0","accept":"*/*","accept-encoding":"gzip,deflate"},"method":"GET"}

curl https://postman-echo.com/deflate --output test-deflate.txt

curl http://localhost:8082/nexus-backend/api/deflate --output test-deflate.txt

{"deflated":true,"headers":{"host":"localhost","x-request-start":"t=1721077334.286","x-forwarded-proto":"https","x-forwarded-port":"443","x-amzn-trace-id":"Root=1-66958e56-102ca75c0702fd3d71b5dbf2","origin":"http://localhost:8082/nexus-backend/api/deflate","user-agent":"curl/7.66.0","accept":"*/*","accept-encoding":"gzip,deflate"},"method":"GET"}

Performance Nexus-Backend under Spring 5, Jdk13, Tomcat 9 during one minute.

Download Postman-Echo-performance-report-2025.pdf

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