---
title: "Maps the identifiers contained in the provided url over the different species and projects the result to Homo Sapiens"
method: POST
path: "/mapping/url/projection"
tags: ["mapping"]
---

# Maps the identifiers contained in the provided url over the different species and projects the result to Homo Sapiens

`POST /mapping/url/projection`

## Request

- Base URL: `https://release.reactome.org/AnalysisService`
- URL: `https://release.reactome.org/AnalysisService/mapping/url/projection`
- Auth: none declared
- TypeScript: <https://skmtc.dev/reactome/apis/pathway-analysis-service/docs/mapping/url/projection/post.ts> (a function with typed inputs; its response is checked against the schema)

The projection is calculated by the orthologous slot in the Reactome database.

## Query parameters

- `interactors` boolean
- `importableOnly` boolean

## Request body `text/plain`

- string

## Other responses

- `400`: Bad request
- `413`: The file size is larger than the maximum configured size (50MB)
- `415`: Unsupported Media Type (only 'text/plain')
- `422`: The provided URL is not processable

---

[API](https://skmtc.dev/reactome/apis/pathway-analysis-service.md) - [All operations](https://skmtc.dev/reactome/apis/pathway-analysis-service/llms.txt) - [OpenAPI document](https://skmtc.dev/reactome/apis/pathway-analysis-service/revisions/935cc02cac0f?raw)