173 lines
3.5 KiB
Markdown
173 lines
3.5 KiB
Markdown
# Response metadata format
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In this page, we elaborate on the metadata response format, as well as response headers and errors.
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## Main response
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The OpenAIRE Search API supports the following types of response formats:
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* XML
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* JSON
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* CSV
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* TSV
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In the next paragraphs, we elaborate on the respective metadata formats.
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### XML/JSON
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The default format of delivered records is oaf (OpenAIRE Format - current version 1.0):
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* XML schema: https://www.openaire.eu/schema/1.0/oaf-1.0.xsd
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* Documentation: https://www.openaire.eu/schema/1.0/doc/oaf-1.0.html
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For the list of changes [click here](https://www.openaire.eu/openaire-xml-schema-change-announcement).
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Note that latest versions of the XML schema and documentation are also available at the following permanent links:
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* XML schema: https://www.openaire.eu/schema/latest/oaf.xsd
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* Documentation: https://www.openaire.eu/schema/latest/doc/oaf.html
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Older versions:
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* oaf v0.3 [XML schema](https://www.openaire.eu/schema/0.3/oaf-0.3.xsd) and [documentation](https://www.openaire.eu/schema/0.3/doc/oaf-0.3.html)
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* oaf v0.2 [XML schema](https://www.openaire.eu/schema/0.2/oaf-0.2.xsd) and [documentation](https://www.openaire.eu/schema/0.2/doc/oaf-0.2.html)
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* oaf v0.1 [XML schema](https://www.openaire.eu/schema/0.1/oaf-0.1.xsd) and [documentation](https://www.openaire.eu/schema/0.1/doc/oaf-0.1.html)
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### CSV/TSV
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The API returns in comma-separated files (CSV) or tab-separated files (TSV) the following fields:
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* Title
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* AUthors
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* Publicatioy year
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* DOI
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* Download from
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* Publication type
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* Journal
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* Funder
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* Project name (GA Number)
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* Access
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## Headers
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| Name | Description |
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| --- | --- |
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| x-ratelimit-limit | The maximum number of requests allowed for the client in one time window. |
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| x-ratelimit-used | The number of requests already made by the client in the current time window. |
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The OpenAIRE APIs use a sliding time window of one hour.
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## Errors
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### General
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404 - Not found
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```json
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{
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"error": "Not found",
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"description": "Invald request path."
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}
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```
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429 - Rate limit abuse
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```json
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{
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"error": "Too many requests",
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"description": "Request rate exceeded. Slow down."
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}
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```
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### Only for authenticated requests
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400 - Missing grant type
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```json
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{
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"error": "invalid_request",
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"error_description": "Missing grant type"
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}
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```
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400 - Wrong grant type
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```json
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{
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"error": "unsupported_grant_type",
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"error_description": "Unsupported grant type: ..."
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}
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```
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400 - Missing Refresh Token
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```json
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{
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"status" : "error",
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"code" : "400",
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"message" : "Bad Request",
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"description" : "Missing refreshToken parameter"
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}
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```
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401 - Missing username or/and password
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```json
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{
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"error": "unauthorized",
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"error_description": "Client id must not be empty!"
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}
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```
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401 - Wrong username or/and password
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```json
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{
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"error": "unauthorized",
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"error_description": "Bad credentials"
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}
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```
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401 - Invalid Refresh Token (for authenticated requests)
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```json
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{
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"status" : "error",
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"code" : "401",
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"message" : "Unauthorised",
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"description" : "Invalid refreshToken token"
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}
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```
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401 - Invalid client assertion
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```json
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{
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"error":"invalid_client",
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"error_description":"Bad client credentials"
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}
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```
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401 - Client assertion for missing service
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```json
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{
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"error":"invalid_client",
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"error_description":"Could not find client {SERVICE_ID}"
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}
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```
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401 - Expired signed jwt
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```json
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{
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"error":"unauthorized",
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"error_description":"Assertion Token in expired: {EXPIRATION_TIME}"
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}
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```
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403 - Invalid Access Token
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```json
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{
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"error": "Token invalid",
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"description": "Authorization header value invalid."
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}
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```
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