Association Rest API Endpoint to Get One Association Record

As developer I want an association details API endpoint such that when I send a GET request to the URL I can get full details of a single association data in JSON Format

This will be a replacement to the old endpoint https://www.ebi.ac.uk/gwas/rest/api/studies

{
   "associationId":14347,
   "riskFrequency":"NR",
   "pvalueDescription":"(progression)",
   "pvalueMantissa":7,
   "pvalueExponent":-8,
   "multiSnpHaplotype":false,
   "snpInteraction":false,
   "snpType":"novel",
   "standardError":null,
   "range":null,
   "description":null,
   "orPerCopyNum":null,
   "betaNum":null,
   "betaUnit":null,
   "betaDirection":null,
   "lastMappingDate":"2023-09-15T12:31:10.000+0000",
   "lastUpdateDate":"2023-09-15T12:31:10.000+0000",
   “efoTrait”: "Dupuytren Contracture",
   "pValue":7e-8,
   "_links":{
    "self":{
        "href":"{base_url}/v1/associations/14347"
    },
    "locus":{
        "href":"{base_url}/v1/associations/14347/loci"
    },
    "search":{
        "href":"{base_url}/v1/associations?fullPvalueSet"
    }

Must Have Additional Payload Attributes - These are displayed on the catalog UI:

discovery_ancestry (country of recruitment): "4390 European (U.K.)"
Traits: ["mental or behavioural disorder", "attempted suicide"]
Platform [SNPs passing QC]: "Affymetrix [1922309] (imputed)"
Replication ancestry (country of recruitment): "1649 NR (NR), 2698 European (Germany)"
Full Summary Statistics: "NA"
Terms/Licence: "https://www.ebi.ac.uk/about/terms-of-use/"
backgroundEfoTraits: ["",""]

Management Rules

Rule 1: Endpoint - /v1/associations/{associationId}
Rule 2: HTTP Request Method - GET
Rule 3: Endpoint should accept association id
Rule 4: Endpoint should return full attributes of the association
Rule 5: Endpoint should be accessible to all

Acceptance Criteria

Given a correct association Id
When a user sends a GET request to the endpoint
A single corresponding association data is returned in JSON Format
Given a wrong association id
When a GET request is sent to the endpoint
Properly described Resource not found exception error should be returned as JSON payload

Additional details here

EBISPOT / goci-rest

Association Rest API Endpoint to Get One Association Record #57