D-Net
/
openaire-graph-docs
6
1
Fork 5
Code Issues 5 Pull Requests 2 Packages Projects Releases 67 Wiki Activity

Merge pull request '10084: added cursor pagination. & date range in yyyy format' (#81) from 10084/cursor_pagination_date_format into main 

Reviewed-on: #81
This commit is contained in:
Claudio Atzori 2024-10-11 15:07:42 +02:00
parent 46a07f5288 dbb8809caf
commit f8acdfaa2e
3 changed files with 131 additions and 86 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
docs/apis/graph-api/searching-entities/filtering-search-results.md
View File

@ -36,7 +36,7 @@ The following query parameters are available for research products:
| **Parameter** | **Description** | | **Parameter** | **Description** |
|-------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| |-------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| **search** | Search in the content of the research product. | | **search** | Search in the content of the research product. |
| **mainTitle** | Search in the research product's main title. | | **mainTitle** | Search in the research product's main title. |
| **description** | Search in the research product's description. | | **description** | Search in the research product's description. |
@ -44,18 +44,18 @@ The following query parameters are available for research products:
| **pid** | The persistent identifier of the research product. | | **pid** | The persistent identifier of the research product. |
| **originalId** | The identifier of the record at the original sources. | | **originalId** | The identifier of the record at the original sources. |
| **type** | The type of the research product. One of `publication`, `dataset`, `software`, or `other` | | **type** | The type of the research product. One of `publication`, `dataset`, `software`, or `other` |
| **fromPublicationDate** | Gets the research products whose publication date is greater than or equal to the given date. A date formatted as `YYYY-MM-DD` | | **fromPublicationDate** | Gets the research products whose publication date is greater than or equal to the given date. A date formatted as `ΥΥΥΥ` or `YYYY-MM-DD` |
| **toPublicationDate** | Gets the research products whose publication date is less than or equal to the given date. A date formatted as `YYYY-MM-DD` | | **toPublicationDate** | Gets the research products whose publication date is less than or equal to the given date. A date formatted as `YYYY` or `YYYY-MM-DD` |
| **subjects** | List of subjects associated to the research product. | | **subjects** | List of subjects associated to the research product. |
| **countryCode** | The country code for the country associated with the research product. | | **countryCode** | The country code for the country associated with the research product. |
| **authorFullName** | The full name of the authors involved in producing this research product. | | **authorFullName** | The full name of the authors involved in producing this research product. |
| **authorOrcid** | The ORCiD of the authors involved in producing this research product. | | **authorOrcid** | The ORCiD of the authors involved in producing this research product. |
| **publisher** | The name of the entity that holds, archives, publishes prints, distributes, releases, issues, or produces the resource. | **publisher** | The name of the entity that holds, archives, publishes prints, distributes, releases, issues, or produces the resource. |
| **bestOpenAccessRightLabel** | The best open access rights among the research product's instances. One of `OPEN SOURCE`, `OPEN`, `EMBARGO`, `RESTRICTED`, `CLOSED`, `UNKNOWN` | | **bestOpenAccessRightLabel** | The best open access rights among the research product's instances. One of `OPEN SOURCE`, `OPEN`, `EMBARGO`, `RESTRICTED`, `CLOSED`, `UNKNOWN` |
| **influenceClass** | Citation-based indicator that reflects the overall impact of a research product. Please, choose a class among `C1`, `C2`, `C3`, `C4`, or `C5` for top 0.01%, top 0.1%, top 1%, top 10%, and average in terms of influence respectively. | | **influenceClass** | Citation-based indicator that reflects the overall impact of a research product. Please, choose a class among `C1`, `C2`, `C3`, `C4`, or `C5` for top 0.01%, top 0.1%, top 1%, top 10%, and average in terms of influence respectively. |
| **impulseClass** | Citation-based indicator that reflects the initial momentum of a research product directly after its publication. Please, choose a class among `C1`, `C2`, `C3`, `C4`, or `C5` for top 0.01%, top 0.1%, top 1%, top 10%, and average in terms of impulse respectively | **impulseClass** | Citation-based indicator that reflects the initial momentum of a research product directly after its publication. Please, choose a class among `C1`, `C2`, `C3`, `C4`, or `C5` for top 0.01%, top 0.1%, top 1%, top 10%, and average in terms of impulse respectively |
| **popularityClass** | Citation-based indicator that reflects current impact or attention of a research product. Please, choose a class among `C1`, `C2`, `C3`, `C4`, or `C5` for top 0.01%, top 0.1%, top 1%, top 10%, and average in terms of popularity respectively. | **popularityClass** | Citation-based indicator that reflects current impact or attention of a research product. Please, choose a class among `C1`, `C2`, `C3`, `C4`, or `C5` for top 0.01%, top 0.1%, top 1%, top 10%, and average in terms of popularity respectively. |
| **citationCountClass** | Citation-based indicator that reflects the overall impact of a research product by summing all its citations. Please, choose a class among `C1`, `C2`, `C3`, `C4`, or `C5` for top 0.01%, top 0.1%, top 1%, top 10%, and average in terms of citation count respectively. | **citationCountClass** | Citation-based indicator that reflects the overall impact of a research product by summing all its citations. Please, choose a class among `C1`, `C2`, `C3`, `C4`, or `C5` for top 0.01%, top 0.1%, top 1%, top 10%, and average in terms of citation count respectively. |
| **instanceType** `[Only for publications]` | Retrieve publications of the given instance type. Check [here](http://api.openaire.eu/vocabularies/dnet:publication_resource) for all possible instance type values. | | **instanceType** `[Only for publications]` | Retrieve publications of the given instance type. Check [here](http://api.openaire.eu/vocabularies/dnet:publication_resource) for all possible instance type values. |
| **sdg** `[Only for publications]` | Retrieves publications classified with the respective Sustainable Development Goal number. Integer in the range [1, 17] | | **sdg** `[Only for publications]` | Retrieves publications classified with the respective Sustainable Development Goal number. Integer in the range [1, 17] |
| **fos** `[Only for publications]` | Retrieves publications classified with a given Field of Science (FOS). A FOS classification identifier (see [here](https://explore.openaire.eu/assets/common-assets/vocabulary/fos.json) for details). | | **fos** `[Only for publications]` | Retrieves publications classified with a given Field of Science (FOS). A FOS classification identifier (see [here](https://explore.openaire.eu/assets/common-assets/vocabulary/fos.json) for details). |
@ -76,6 +76,7 @@ The following query parameters are available for research products:
| **debugQuery** | Retrieve debug information for the search query. (Boolean) | | **debugQuery** | Retrieve debug information for the search query. (Boolean) |
| **page** | Page number of the results. (Integer) | | **page** | Page number of the results. (Integer) |
| **pageSize** | Number of results per page. Integer in the range [1, 100] | | **pageSize** | Number of results per page. Integer in the range [1, 100] |
| **cursor** | Cursor-based pagination. Initial value: `cursor=*` |
| **sortBy** | The field to set the sorting order of the results. Should be provided in the format `fieldname sortDirection`, where the `sortDirection` can be either `ASC` for ascending order or `DESC` for descending order and `fielaname` is one of `relevance`, `publicationDate`, `dateOfCollection`, `influence`, `popularity`, `citationCount`, `impulse`. Multiple sorting parameters should be comma-separated. | | **sortBy** | The field to set the sorting order of the results. Should be provided in the format `fieldname sortDirection`, where the `sortDirection` can be either `ASC` for ascending order or `DESC` for descending order and `fielaname` is one of `relevance`, `publicationDate`, `dateOfCollection`, `influence`, `popularity`, `citationCount`, `impulse`. Multiple sorting parameters should be comma-separated. |
@ -84,7 +85,7 @@ The following query parameters are available for research products:
The following query parameters are available for organizations: The following query parameters are available for organizations:
| **Parameter** | **Description** | | **Parameter** | **Description** |
|----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------| |----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|**search** | Search in the content of the organization. | |**search** | Search in the content of the organization. |
|**legalName** | The legal name of the organization. | |**legalName** | The legal name of the organization. |
|**legalShortName** | The legal name of the organization in short form. | |**legalShortName** | The legal name of the organization in short form. |
@ -96,6 +97,7 @@ The following query parameters are available for organizations:
|**debugQuery** | Retrieve debug information for the search query. | |**debugQuery** | Retrieve debug information for the search query. |
|**page** | Page number of the results. | |**page** | Page number of the results. |
|**pageSize** | Number of results per page. | |**pageSize** | Number of results per page. |
| **cursor** | Cursor-based pagination. Initial value: `cursor=*` |
|**sortBy** | The field to set the sorting order of the results. Should be provided in the format `fieldname sortDirection`, where the `sortDirection` can be either `ASC` for ascending order or `DESC` for descending order - organizations can only be sorted by `relevance`. | |**sortBy** | The field to set the sorting order of the results. Should be provided in the format `fieldname sortDirection`, where the `sortDirection` can be either `ASC` for ascending order or `DESC` for descending order - organizations can only be sorted by `relevance`. |
@ -120,6 +122,7 @@ The following query parameters are available for data sources:
|**debugQuery** |Retrieve debug information for the search query. | |**debugQuery** |Retrieve debug information for the search query. |
|**page** |Page number of the results. | |**page** |Page number of the results. |
|**pageSize** |Number of results per page. | |**pageSize** |Number of results per page. |
| **cursor** | Cursor-based pagination. Initial value: `cursor=*` |
|**sortBy** |The field to set the sorting order of the results. Should be provided in the format `fieldname sortDirection`, where the `sortDirection` can be either `ASC` for ascending order or `DESC` for descending order - data sources can only be sorted by `relevance`.| |**sortBy** |The field to set the sorting order of the results. Should be provided in the format `fieldname sortDirection`, where the `sortDirection` can be either `ASC` for ascending order or `DESC` for descending order - data sources can only be sorted by `relevance`.|
@ -128,7 +131,7 @@ The following query parameters are available for data sources:
The following query parameters are available for projects: The following query parameters are available for projects:
| **Parameter** | **Description** | | **Parameter** | **Description** |
|----------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| |----------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|**search** | Search in the content of the projects. | |**search** | Search in the content of the projects. |
|**title** | Search in the project's title. | |**title** | Search in the project's title. |
|**keywords** | The project's keywords. | |**keywords** | The project's keywords. |
@ -138,10 +141,10 @@ The following query parameters are available for projects:
|**callIdentifier** | The identifier of the research call. | |**callIdentifier** | The identifier of the research call. |
|**fundingShortName** | The short name of the funder. | |**fundingShortName** | The short name of the funder. |
|**fundingStreamId** | The identifier of the funding stream. | |**fundingStreamId** | The identifier of the funding stream. |
|**fromStartDate** |Gets the projects with start date greater than or equal to the given date. Please provide a date formatted as `YYYY-MM-DD`. | |**fromStartDate** | Gets the projects with start date greater than or equal to the given date. Please provide a date formatted as `YYYY` or `YYYY-MM-DD`. |
|**toStartDate** |Gets the projects with start date less than or equal to the given date. Please provide a date formatted as `YYYY-MM-DD`. | |**toStartDate** | Gets the projects with start date less than or equal to the given date. Please provide a date formatted as `YYYY` or `YYYY-MM-DD`. |
|**fromEndDate** |Gets the projects with end date greater than or equal to the given date. Please provide a date formatted as `YYYY-MM-DD`. | |**fromEndDate** | Gets the projects with end date greater than or equal to the given date. Please provide a date formatted as `YYYY` or `YYYY-MM-DD`. |
|**toEndDate** |Gets the projects with end date less than or equal to the given date. Please provide a date formatted as `YYYY-MM-DD`. | |**toEndDate** | Gets the projects with end date less than or equal to the given date. Please provide a date formatted as `YYYY` or `YYYY-MM-DD`. |
|**relOrganizationName** | The name or short name of the related organization. | |**relOrganizationName** | The name or short name of the related organization. |
|**relOrganizationId** | The organization identifier of the related organization. | |**relOrganizationId** | The organization identifier of the related organization. |
|**relCommunityId** | Retrieve projects connected to the community (with OpenAIRE id). | |**relCommunityId** | Retrieve projects connected to the community (with OpenAIRE id). |
@ -150,6 +153,7 @@ The following query parameters are available for projects:
|**debugQuery** | Retrieve debug information for the search query. | |**debugQuery** | Retrieve debug information for the search query. |
|**page** | Page number of the results. | |**page** | Page number of the results. |
|**pageSize** | Number of results per page. | |**pageSize** | Number of results per page. |
| **cursor** | Cursor-based pagination. Initial value: `cursor=*` |
|**sortBy** | The field to set the sorting order of the results. Should be provided in the format `fieldname sortDirection`, where the `sortDirection` can be either `ASC` for ascending order or `DESC` for descending order and `fielaname` is one of `relevance`, `startDate`, `endDate`. Multiple sorting parameters should be comma-separated. | |**sortBy** | The field to set the sorting order of the results. Should be provided in the format `fieldname sortDirection`, where the `sortDirection` can be either `ASC` for ascending order or `DESC` for descending order and `fielaname` is one of `relevance`, `startDate`, `endDate`. Multiple sorting parameters should be comma-separated. |

4
docs/apis/graph-api/searching-entities/searching-entities.md
View File

@ -31,14 +31,14 @@ The response of the aforementioned endpoints is an object of the following type:
... ...
] ]
} }
``` ```
It contains a `header` object with the following fields: It contains a `header` object with the following fields:
- `numFound`: the total number of entities found - `numFound`: the total number of entities found
- `maxScore`: the maximum relevance score of the search results - `maxScore`: the maximum relevance score of the search results
- `queryTime`: the time in milliseconds that the search took - `queryTime`: the time in milliseconds that the search took
- `page`: the current page of the search results - `page`: the current page of the search results (when using basic pagination)
- `pageSize`: the number of entities per page - `pageSize`: the number of entities per page
- `nextCursor`: the next page cursor (when using cursor-based pagination, see: [paging](./sorting-and-paging.md#paging)
Finally, the `results` field contains an array of entities of the corresponding type (i.e., [Research product](../../../data-model/entities/research-product.md), [Organization](../../../data-model/entities/organization.md), [Data Source](../../../data-model/entities/data-source.md), or [Project](../../../data-model/entities/project.md)). Finally, the `results` field contains an array of entities of the corresponding type (i.e., [Research product](../../../data-model/entities/research-product.md), [Organization](../../../data-model/entities/organization.md), [Data Source](../../../data-model/entities/data-source.md), or [Project](../../../data-model/entities/project.md)).

45
docs/apis/graph-api/searching-entities/sorting-and-paging.md
View File

@ -33,14 +33,55 @@ Example:
## Paging ## Paging
The OpenAIRE Graph API supports paging through the use of `page` and `pageSize` parameters, enabling you to specify which part of the result set to retrieve and how many results per page. The OpenAIRE Graph API supports basic and cursor-based pagination. In basic pagination, `page` and `pageSize` parameters are used, enabling you to specify which part of the result set to retrieve and how many results per page.
### Offset-based paging
Offset-based paging should be used to retrieve a small dataset only (up to 10000 records).
* `page`: Specifies the page number of the results you want to retrieve. Page numbering starts from 1. * `page`: Specifies the page number of the results you want to retrieve. Page numbering starts from 1.
* `pageSize`: Defines the number of results to be returned per page. This helps limit the amount of data returned in a single request, making it easier to process. * `pageSize`: Defines the number of results to be returned per page. This helps limit the amount of data returned in a single request, making it easier to process.
Example: Example:
- Get the top 10 most influential research products that contain the phrase "knowledge graphs": - Get the top 10 most influential research products that contain the phrase "knowledge graphs":
[https://api-beta.openaire.eu/graph/researchProducts?search="knowledge graphs"&page=1&pageSize=10&sortBy=influence DESC](https://api-beta.openaire.eu/graph/researchProducts?search=%22knowledge%20graphs%22&page=1&pageSize=10&sortBy=influence%20DESC) [https://api-beta.openaire.eu/graph/researchProducts?search="knowledge graphs"&page=1&pageSize=10&sortBy=influence DESC](https://api-beta.openaire.eu/graph/researchProducts?search=%22knowledge%20graphs%22&page=1&pageSize=10&sortBy=influence%20DESC)
response:
```json
{
header: {
numFound: 36818386,
maxScore: 1,
queryTime: 21,
page: 1,
pageSize: 10
},
results: [
...
]
}
```
### Cursor-based paging
Cursor should be used when it is required to retrieve a big dataset (more than 10000 records).
* `cursor`: Cursor-based pagination. Initial value: `cursor=*`.
Example:
- [https://api-beta.openaire.eu/graph/researchProducts?search="knowledge graphs"&pageSize=10&cursor=*&sortBy=influence DESC](https://api-beta.openaire.eu/graph/researchProducts?search=%22knowledge%20graphs%22&pageSize=10&cursor=*&sortBy=influence%20DESC)
response:
```json
{
header: {
numFound: 36818386,
maxScore: 1,
queryTime: 21,
pageSize: 10,
nextCursor: "AoI/D2M2NGU1YjVkNTQ4Nzo6NjlmZTBmNjljYzM4YTY1MjI5YjM3ZDRmZmIyMTU1NDAIP4AAAA=="
},
results: [
...
]
}
```
Use `nextCursor` value, to get the next page of results.