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Add PartStudio Feature using Onshape Java client --> Error processing json
eduard_martov
Member Posts: 5 ✭
Hello Community,
I try to write an app to generate a model by adding FeatureScript-Features to a PartStudio.
I am able to add a feature to a PartStudio using the method at Glassworks. However I get an exception (com.onshape.api.exceptions.OnshapeException: Error processing json) trying to do the same via Java client.
I minimised the program to the essential part to be easily tested.
Any help identifying the cause of the problem is appreciated.
BR: Eduard
Best Answer
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eduard_martov
Member Posts: 5 ✭
So, it looks like the problem is the outdated logic for building URI in the Java client (class BaseClient, method buildURI). In the line 701 "/api" should be replaced by "/api/v12".
I suppose, Java client is not supported, isn't it?
0
Answers
So, it looks like the problem is the outdated logic for building URI in the Java client (class BaseClient, method buildURI). In the line 701 "/api" should be replaced by "/api/v12".
I suppose, Java client is not supported, isn't it?
/api/ or /api/v12 both work.
Specifying the specific version can give you a different input/output format.
What body/json are you sending to the API? That is most likely the problem. Getting the body right with adding features can be tricky, especially depending on the feature.
Custom FeatureScript and Onshape Integrated Applications
Hi Caden, thank you for your response!
Here is the content of my log in both cases:
Fail
Success
Request
Jul 24, 2025 5:40:58 PM org.glassfish.jersey.logging.LoggingInterceptor log
INFO: 1 * Sending client request on thread main
1 > POST https://cad.onshape.com/api/partstudios/d/98735c7f8c1ac21f8d942291/w/dab35e734e010433bf2bc7e5/e/432c59f2fec966f4e76cffe9/features
1 > Accept: application/vnd.onshape.v1+json,application/json
1 > Accept-Encoding: gzip
1 > Authorization: On 3J3VMPpWAquCrdX5Zst6QAsL:HmacSHA256:mpu1TrK2Wq4hmyYPve6zQ87cZEh68QWRfBSBrxTkXRk=
1 > Content-Type: application/json
1 > Date: Thu, 24 Jul 2025 15:40:56 GMT
1 > On-Nonce: 90gepkwpy472dv1zrfjwlmvy4
{"feature":{"btType":"BTMFeature-134","namespace":"ebbaf3d48f5f119e6cc4bc003::m2a99f6dea331231071704f73","featureType":"StepModule","name":"Step Module","parameters":[{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"25 mm","nodeId":"rX/EhwuhJ11tiFvp","parameterId":"d"},{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"100 mm","nodeId":"AF8KX0LloRo1bek2p1yyDiex","parameterId":"l"},{"btType":"BTMParameterBoolean-144","value":true,"nodeId":"+jv75zh1sJThjznr","parameterId":"keyway"},{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"0 mm","nodeId":"zkISxynBTId0d2Lkji9uu9V+","parameterId":"chamferRight"},{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"1 mm","nodeId":"uWD8o/Rg8MsHozhTJkppXq17","parameterId":"chamferLeft"},{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"0 mm","nodeId":"zS+j4Pk1x2Yj2aWkDXge6LA0","parameterId":"offset"}]},"serializationVersion":"1.2.11","sourceMicroversion":"a0c6cda7b0cd24a906629703","rejectMicroversionSkew":false}
Jul 24, 2025 5:48:50 PM org.glassfish.jersey.logging.LoggingInterceptor log
INFO: 1 * Sending client request on thread main
1 > POST https://cad.onshape.com/api/v12/partstudios/d/98735c7f8c1ac21f8d942291/w/dab35e734e010433bf2bc7e5/e/432c59f2fec966f4e76cffe9/features
1 > Accept: application/vnd.onshape.v1+json,application/json
1 > Accept-Encoding: gzip
1 > Authorization: On 3J3VMPpWAquCrdX5Zst6QAsL:HmacSHA256:sPXg3wgkbn/XX+GqXirydHS3bbpRUzYK6EE5aqZEsRs=
1 > Content-Type: application/json
1 > Date: Thu, 24 Jul 2025 15:48:48 GMT
1 > On-Nonce: jler9vxjder1r1z4jt9xpkygm
{"feature":{"btType":"BTMFeature-134","namespace":"ebbaf3d48f5f119e6cc4bc003::m2a99f6dea331231071704f73","featureType":"StepModule","name":"Step Module","parameters":[{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"25 mm","nodeId":"rX/EhwuhJ11tiFvp","parameterId":"d"},{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"100 mm","nodeId":"AF8KX0LloRo1bek2p1yyDiex","parameterId":"l"},{"btType":"BTMParameterBoolean-144","value":true,"nodeId":"+jv75zh1sJThjznr","parameterId":"keyway"},{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"0 mm","nodeId":"zkISxynBTId0d2Lkji9uu9V+","parameterId":"chamferRight"},{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"1 mm","nodeId":"uWD8o/Rg8MsHozhTJkppXq17","parameterId":"chamferLeft"},{"btType":"BTMParameterQuantity-147","isInteger":false,"value":0,"units":"","expression":"0 mm","nodeId":"zS+j4Pk1x2Yj2aWkDXge6LA0","parameterId":"offset"}]},"serializationVersion":"1.2.11","sourceMicroversion":"a0c6cda7b0cd24a906629703","rejectMicroversionSkew":false}
Response
Jul 24, 2025 5:40:58 PM org.glassfish.jersey.logging.LoggingInterceptor log
INFO: 1 * Client response received on thread main
1 < 400
1 < Connection: keep-alive
1 < Content-Length: 95
1 < Content-Security-Policy: frame-ancestors 'self' *.onshape.com *.dev.onshape.com *.creo.ptc.com https://onshapesandbox4.thoughtindustries.com https://localhost.dev.onshape.com:8000; font-src 'self' data: https://*; img-src 'self' data: blob: https://*; style-src 'self' 'unsafe-inline' data: https://*; object-src 'self'; base-uri 'self'; worker-src 'self' blob:; script-src 'self' 'unsafe-inline' 'unsafe-eval'; script-src-elem 'self' 'unsafe-inline' https://code.jquery.com/jquery-3.5.1.min.js https://looker-custom-viz-a.lookercdn.com/master/v1_common.js https://*.awswaf.com https://ajax.googleapis.com https://cdn.mouseflow.com https://cdnjs.cloudflare.com https://www.datadoghq-browser-agent.com https://img04.en25.com https://js.stripe.com https://www.googletagmanager.com https://js.driftt.com https://cdn.taboola.com https://trc.taboola.com https://www.recaptcha.net https://www.gstatic.com https://www.google.com/jsapi https://widget.usersnap.com https://resources.usersnap.com https://www.google-analytics.com https://fast.wistia.net https://fast.wistia.com https://www.youtube.com https://static-a.lookercdn.com https://static-b.lookercdn.com https://cdn.trackjs.com https://maps.googleapis.com; script-src-attr 'self' 'unsafe-inline'; report-uri https://cad.onshape.com/api/csp
1 < Content-Type: application/json
1 < Date: Thu, 24 Jul 2025 15:40:58 GMT
1 < on-version: 1.201.59946.273cf652a478
1 < Strict-Transport-Security: max-age=31536000; includeSubDomains
1 < traceparent: 00-00000000000000007c318e0e5b03a672-7c318e0e5b03a672-00,00-0000000000000000eb7ef6ea587ef5d8-eb7ef6ea587ef5d8-00
1 < x-api-version: v1
1 < X-Content-Type-Options: nosniff
1 < X-Rate-Limit-Remaining: 500
1 < x-request-id: 6674867ff29226e1e503d9e83678f237
1 < X-XSS-Protection: 1; mode=block
{
"moreInfoUrl" : "",
"message" : "Error processing json",
"status" : 400,
"code" : 0
}
Jul 24, 2025 5:48:52 PM org.glassfish.jersey.logging.LoggingInterceptor log
INFO: 1 * Client response received on thread main
1 < 200
1 < Connection: keep-alive
1 < Content-Encoding: gzip
1 < Content-Security-Policy: frame-ancestors 'self' *.onshape.com *.dev.onshape.com *.creo.ptc.com https://onshapesandbox4.thoughtindustries.com https://localhost.dev.onshape.com:8000; font-src 'self' data: https://*; img-src 'self' data: blob: https://*; style-src 'self' 'unsafe-inline' data: https://*; object-src 'self'; base-uri 'self'; worker-src 'self' blob:; script-src 'self' 'unsafe-inline' 'unsafe-eval'; script-src-elem 'self' 'unsafe-inline' https://code.jquery.com/jquery-3.5.1.min.js https://looker-custom-viz-a.lookercdn.com/master/v1_common.js https://*.awswaf.com https://ajax.googleapis.com https://cdn.mouseflow.com https://cdnjs.cloudflare.com https://www.datadoghq-browser-agent.com https://img04.en25.com https://js.stripe.com https://www.googletagmanager.com https://js.driftt.com https://cdn.taboola.com https://trc.taboola.com https://www.recaptcha.net https://www.gstatic.com https://www.google.com/jsapi https://widget.usersnap.com https://resources.usersnap.com https://www.google-analytics.com https://fast.wistia.net https://fast.wistia.com https://www.youtube.com https://static-a.lookercdn.com https://static-b.lookercdn.com https://cdn.trackjs.com https://maps.googleapis.com; script-src-attr 'self' 'unsafe-inline'; report-uri https://cad.onshape.com/api/csp
1 < Content-Security-Policy-Report-Only: frame-src 'self' https://*.dev.graebert.com https://*.onshape.io https://td.doubleclick.net https://js.stripe.com https://www.recaptcha.net https://*.onshape.com https://fast.wistia.net https://fast.wistia.com https://www.youtube.com https://js.driftt.com https://www.googletagmanager.com; report-uri https://cad.onshape.com/api/csp
1 < Content-Type: application/json;charset=utf-8
1 < Date: Thu, 24 Jul 2025 15:48:52 GMT
1 < On-Version: 1.201.59946.273cf652a478
1 < Set-Cookie: _u=webservice-fd4c9d5c; Path=/; Secure; HttpOnly;
1 < Strict-Transport-Security: max-age=31536000; includeSubDomains
1 < traceparent: 00-000000000000000074607056ee5cc921-74607056ee5cc921-00
1 < Transfer-Encoding: chunked
1 < Vary: Accept-Encoding
1 < X-Api-Version: v12
1 < X-Content-Type-Options: nosniff
1 < X-Frame-Options: SAMEORIGIN
1 < X-Rate-Limit-Remaining: 500
1 < X-Request-ID: d2b6a3db3437b336dc93f7fee599386f
1 < X-XSS-Protection: 1; mode=block
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