Proxy Change Post request to Get request

Support Installation and Deployment
1

Post request to Tyk, and Tyk proxy request to an upstream server. However my upstream server
received Get request.

Here is the proxy setting from API definition:
“proxy”: {
“target_url”: “https://xxx.xxx.xxx/auth/”,
“service_discovery”: {
“endpoint_returns_list”: false,
“cache_timeout”: 0,
“parent_data_path”: “”,
“query_endpoint”: “”,
“use_discovery_service”: false,
“_sd_show_port_path”: false,
“target_path”: “”,
“use_target_list”: false,
“use_nested_query”: false,
“data_path”: “”,
“port_data_path”: “”
},
“check_host_against_uptime_tests”: false,
“transport”: {
“ssl_ciphers”: [],
“ssl_min_version”: 0,
“proxy_url”: “”
},
“target_list”: [],
“preserve_host_header”: false,
“strip_listen_path”: true,
“enable_load_balancing”: false,
“listen_path”: “/auth/”,
“disable_strip_slash”: false
},

However, if I change “target_url” to “https://xxx.xxx.xxx/”, “strip_listen_path” to false, “listen_path” to “/auth/”, my upstream server was able to receive Post request as expected.

I posted to my Tyk on-premises server via http://tyk.test.server/auth/ and with JSON request body.

PS:

  • NO method transform plugin is used.
  • Using Tyk dashboard v1.7.6 and Tyk gateway v2.7.7.
  • Authentication is set to Open(Keyless).

Does anyone have similar issues or know how to solve this? Thank you guys.

2

Hi,

I am not able to reproduce the issue.
Can you share your entire API definition file?
Can you also send logs of gateway when endpoint is requested?

Thanks
Komal

3

Hello Komal,
Here is my API definition:
{
“api_model”: {},
“api_definition”: {
“api_id”: “ece00e724a884cd3782554741322e33c”,
“jwt_issued_at_validation_skew”: 0,
“upstream_certificates”: {},
“use_keyless”: true,
“enable_coprocess_auth”: false,
“custom_middleware”: {
“pre”: [],
“post”: [],
“post_key_auth”: [],
“auth_check”: {
“name”: “”,
“path”: “”,
“require_session”: false
},
“response”: [],
“driver”: “”,
“id_extractor”: {
“extract_from”: “”,
“extract_with”: “”,
“extractor_config”: {}
}
},
“disable_quota”: false,
“custom_middleware_bundle”: “”,
“cache_options”: {
“cache_timeout”: 60,
“enable_cache”: true,
“cache_all_safe_requests”: false,
“cache_response_codes”: [],
“enable_upstream_cache_control”: false,
“cache_control_ttl_header”: “”
},
“enable_ip_blacklisting”: false,
“tag_headers”: [],
“pinned_public_keys”: {},
“expire_analytics_after”: 0,
“domain”: “”,
“openid_options”: {
“providers”: [],
“segregate_by_client”: false
},
“active”: true,
“jwt_expires_at_validation_skew”: 0,
“config_data”: {},
“notifications”: {
“shared_secret”: “”,
“oauth_on_keychange_url”: “”
},
“auth”: {
“auth_header_name”: “Authorization”,
“signature”: {
“algorithm”: “”,
“header”: “”,
“secret”: “”,
“allowed_clock_skew”: 0,
“error_code”: 0,
“error_message”: “”
},
“validate_signature”: false,
“use_certificate”: false
},
“check_host_against_uptime_tests”: false,
“auth_provider”: {
“name”: “”,
“storage_engine”: “”,
“meta”: {}
},
“blacklisted_ips”: [],
“hmac_allowed_clock_skew”: -1,
“dont_set_quota_on_create”: false,
“uptime_tests”: {
“check_list”: [],
“config”: {
“expire_utime_after”: 0,
“service_discovery”: {
“use_discovery_service”: false,
“query_endpoint”: “”,
“use_nested_query”: false,
“parent_data_path”: “”,
“data_path”: “”,
“cache_timeout”: 60
},
“recheck_wait”: 0
}
},
“enable_jwt”: false,
“do_not_track”: false,
“name”: “auth”,
“slug”: “test”,
“oauth_meta”: {
“allowed_access_types”: [],
“allowed_authorize_types”: [],
“auth_login_redirect”: “”
},
“CORS”: {
“enable”: false,
“max_age”: 24,
“allow_credentials”: false,
“exposed_headers”: [],
“allowed_headers”: [],
“options_passthrough”: false,
“debug”: false,
“allowed_origins”: [],
“allowed_methods”: []
},
“event_handlers”: {
“events”: {}
},
“proxy”: {
“target_url”: “https://xxx.xxx.xxx/auth/”,
“service_discovery”: {
“endpoint_returns_list”: false,
“cache_timeout”: 0,
“parent_data_path”: “”,
“query_endpoint”: “”,
“use_discovery_service”: false,
“_sd_show_port_path”: false,
“target_path”: “”,
“use_target_list”: false,
“use_nested_query”: false,
“data_path”: “”,
“port_data_path”: “”
},
“check_host_against_uptime_tests”: false,
“transport”: {
“ssl_ciphers”: [],
“ssl_min_version”: 0,
“proxy_url”: “”
},
“target_list”: [],
“preserve_host_header”: false,
“strip_listen_path”: true,
“enable_load_balancing”: false,
“listen_path”: “/auth/”,
“disable_strip_slash”: false
},
“client_certificates”: [],
“use_basic_auth”: false,
“version_data”: {
“not_versioned”: true,
“default_version”: “”,
“versions”: {
“Default”: {
“name”: “Default”,
“expires”: “”,
“paths”: {
“ignored”: [],
“white_list”: [],
“black_list”: []
},
“use_extended_paths”: true,
“extended_paths”: {
“ignored”: [],
“white_list”: [],
“black_list”: [],
“transform”: [],
“transform_response”: [],
“transform_jq”: [],
“transform_jq_response”: [],
“transform_headers”: [],
“transform_response_headers”: [],
“hard_timeouts”: [],
“circuit_breakers”: [],
“url_rewrites”: [],
“virtual”: [],
“size_limits”: [],
“method_transforms”: [],
“track_endpoints”: [],
“do_not_track_endpoints”: [],
“validate_json”: []
},
“global_headers”: {},
“global_headers_remove”: [],
“global_size_limit”: 0,
“override_target”: “”
}
}
},
“use_standard_auth”: false,
“session_lifetime”: 0,
“hmac_allowed_algorithms”: [],
“disable_rate_limit”: false,
“definition”: {
“location”: “header”,
“key”: “x-api-version”,
“strip_path”: false
},
“use_oauth2”: false,
“jwt_not_before_validation_skew”: 0,
“allowed_ips”: [],
“org_id”: “5ca6a6125b7e08116816c7e4”,
“enable_ip_whitelisting”: false,
“global_rate_limit”: {
“rate”: 0,
“per”: 0
},
“enable_context_vars”: false,
“tags”: [],
“basic_auth”: {
“disable_caching”: false,
“cache_ttl”: 0,
“extract_from_body”: false,
“body_user_regexp”: “”,
“body_password_regexp”: “”
},
“session_provider”: {
“name”: “”,
“storage_engine”: “”,
“meta”: {}
},
“strip_auth_data”: false,
“id”: “5cb66ed15b7e08733b8334d0”,
“certificates”: [],
“enable_signature_checking”: false,
“use_openid”: false,
“jwt_skip_kid”: false,
“enable_batch_request_support”: false,
“response_processors”: [],
“use_mutual_tls_auth”: false
},
“hook_references”: [],
“is_site”: false,
“sort_by”: 0
}

Regarding the gateway log, I did not see any log generated when my POST requests poxy through Tyk.
Is there a verbose mode that I can turn on to get more log to investigate?

Thank you Komal

4

Did you ever find the answer to this? Im having the same issue currently.

5

Hi Kasper
I just tested the api above for httpbin and it worked for me (replaced “auth” with “anything”):

  "target_url": "http://httpbin.org/anything", 
  "listen_path": "/anything/",
  "strip_listen_path": true,

Here is the output:

====== Request ======
POST / HTTP/1.1

{"hi":"bye"}
====== Response ======
HTTP/1.1 200 OK
Content-Length: 417
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: *
Content-Type: application/json
Date: Fri, 22 Jan 2021 15:35:54 GMT
Server: gunicorn/19.9.0
X-Ratelimit-Limit: 0
X-Ratelimit-Remaining: 0
X-Ratelimit-Reset: 0

{
  "args": {}, 
  "data": "{\"hi\":\"bye\"}", 
  "files": {}, 
  "form": {}, 
  "headers": {
    "Accept-Encoding": "gzip", 
    "Content-Length": "12", 
    "Host": "httpbin.org", 
    "User-Agent": "Tyk/v3.0.1", 
    "X-Amzn-Trace-Id": "Root=1-600af0da-0ed6426c5d925b3834fe135a"
  }, 
  "json": {
    "hi": "bye"
  }, 
  "method": "POST", 
  "origin": ", 90.240.199.172", 
  "url": "http://httpbin.org/anything"
}

Can you please send us more details to demonstrate the issue? Also which version are you using?
Thanks
Yaara

1 Like
6

Hello Yaara
Unfortunately im just a consumer and not a developer on our companys Tyk setup, so I’m lacking some
insights into whats going on in the backend, but I’ve had a chat with our devs who suggested it could be due to bad syntax in my used URLs or double slashes, though I haven’t been able to identify any such cases.

For the information I DO have access to:

To me the Prod/Dev setup looks identical, so im thinking I need to request access or help to debug the Tyk Prod backend or it’s logs. But first, can you confirm I havent made any obvious mistake, before I escalate this issue internally?

7
8

Hi Kasper,
Sorry, I haven’t seen a notification of your reply. Can you please post the results again since I the links are no longer available.
THanks

9

BTW, to turn on debug you can set

“enable_detailed_recording”: true,

in the api definition.

Which release are we talking about?
and last thing - can you please send me the response you get in both envs?
curl -X POST https://tyk-gateway.localhost:8081/post-to-get/anything/1 -I