# Params attributes are being ignored when submitted to workflow/launch API end point

**URL:** <https://community.seqera.io/t/params-attributes-are-being-ignored-when-submitted-to-workflow-launch-api-end-point/2186>\
**Category:** Ask for help\
**Created:** [June 12, 2025, 11:50pm UTC](https://community.seqera.io/t/params-attributes-are-being-ignored-when-submitted-to-workflow-launch-api-end-point/2186 "2025-06-12T23:50:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![J\_Ireland](https://dub1.discourse-cdn.com/flex013/user_avatar/community.seqera.io/j_ireland/32/1846_2.png) [@J\_Ireland](https://community.seqera.io/u/J_Ireland)\
**Post date:** [June 12, 2025, 11:50pm UTC](https://community.seqera.io/t/params-attributes-are-being-ignored-when-submitted-to-workflow-launch-api-end-point/2186/1 "2025-06-12T23:50:05Z")

</div>

Greetings,

I had a working example of submitting a pipeline job using the Seqera API (`https://api.cloud.seqera.io/workflow/launch?workspaceId=XXXX`). It was last run successfully on 2025-05-17. In the JSON payload, I used the params attribute to pass parameters as shown below:

```auto
payload = {
    "launch": {
        "computeEnvId": "XXXXXXXXX",
        "runName": "test_2",
        "pipeline": "https://github.com/XXXX/myapp-test",
        "workDir": "s3://myapp-nextflow-scratch/workspace/",
        "revision": "main",
        "params": {
            "sleeptime": 5,
            "nlines": 10,
            "input": "s3://myapp-job-data/test_job_1/inputs/fog_wikipedia_summary.txt",
            "outputdir": "s3://myapp-job-data/test_job_1/outputs/"
        }
    }
}

```

When trying to run this same example today, it appears that the `params` are being ignored and I get an error that `Both --input and --outputdir parameters must be provided`. If I reformat the params as a paramsText string, the workflow runs fine.

Am I going nuts, or is the `params` attribute no longer supported? This issue seems very similar to [this issue](https://community.seqera.io/t/nextflow-run-does-not-pick-up-parameters-submitted-via-seqera-platform/915) from last year.

Thanks,  
James