Datafari API
Valid from Datafari 6.0
The documentation below is valid from Datafari 6.0 onwards. Some parts are still under development.
Introduction
The Datafari API is trying to respect the principles of RESTFUL applications as much as possible and use json as the mean to exchange data. This means that everything returned by the API will be JSON, and any payload in POST and PUT requests made to the API will be in JSON too.
On GET and DELETE requests, some parameter may be passed through url parmeters (either as part of the URL or in the search parameter String - anything that is after the “?”)
Prefix
Every endpoint in this API are prefixed by /rest/VX.Y/ where X and Y are the major and minor versions of this API.
Do also remember to add the relevant path to your Datafari web app (https://datafaridomain/Datafari/rest/VX.Y/endpoint)
Response Structure
All responses are formatted using the following template:
{
"status": "OK|ERROR",
"content": {}
}In the following, any object presented as the response is showing the format of the content key in the above template.
For errors, the content follows the following structure:
{
"code": {int},
"reason": {String},
"extra": {Object}
}code: an integer using the HTTP response code nomenclature
reason: a String in English giving some details if relevant to help solve the problem or give context
extra: a JSON object providing some extra information from the endpoint if relevant, can be null or empty
Do keep in mind that on some occasions the server might respond with an HTTP error code without any JSON payload, you must handle this case in your applications.
Endpoints
V2.0
METHOD | URL | DESCRIPTION | QUERY BODY | RESPONSE | PROTECTED | EDITION |
|---|---|---|---|---|---|---|
GET | search/{handler}?{query} | More details about this API further down in this documentation ! |
| SPECIFIC RESPONSE FORMAT. See below for more explanations. |
| CE |
GET | results/export?query={query}&facetQuery[]={facetQuery}&facetField[]={facetField}&fq[]={fq}&sort={sort}&fl={fl}&nbResults={nbResults}&type=excel | More details about this API further down in this documentation ! |
| A stream of the created export file. See below for more explanations. |
| CE |
GET | users/current/history | Retrieve the current user history (past queries information). |
| {
"history":[
{
"action":"SEARCH",
"query_id": ...,
"time_stamp":...,
"user_id":...,
"parameters":{
"query":"training",
"num_hit":0
}
},
{
"action":"SEARCH",
"query_id": ...,
"time_stamp":...,
"user_id":...,
"parameters":{
"query":"exactContent%3Aenergy OR innovation future",
"num_hit":0
}
},
{
...
}]
}History is an array of object containing the last queries information from the current user. User must be authenticated to have an history, will return an error if not authenticated. |
| CE |
GET | users/current/history?query={query} | Retrieve the current user history (past queries information). Results will be filtered by query in the API. |
| Example : users/current/history?query=exactContent%3Aenergy OR innovation future History is an array of object containing the last queries information from the current user. User must be authenticated to have an history, will return an error if not authenticated. The field stored in parameters.query of the returned entries should contain the user query. |
| CE |
GET /rest/v2.0/search/*
This is the endpoint to perform a search request. This endpoint expects a search handler to be provided as well as all the elements of a solr query as URL parameters. A simple example for a search query would be:
Note that {DATAFARI_BASE_URL} is by default of the following shape: [DATAFARI_DOMAIN_NAME]/Datafari
This endpoints allows the use of only a few selected search handlers for security reasons. The handlers that can be called are different depending on the value of the special “action” URL parameter.
action= | handlers allowed |
|---|---|
search OR unset | /select /stats /statsQuery /noaggregator
|
suggest | /suggest /proposals Configuration specific handlers for advanced autocomplete functionalities (entity recognition, …) |
Warning! /stats and /statsQuery handlers are deprecated since Datafari 6.0, and should be removed in Datafari 6.1.
The main handlers to keep in mind are /select and /suggest.
It is also possible to add more allowed handlers. To do it, add them into $DATAFARI_HOME/tomcat/conf/datafari.properties into : userAllowedHandlers property.
Example :
userAllowedHandlers=/newselect
The /select handler is used to perform search queries while the /suggest handler is used to get suggestions for autocomplete.
If you wonder how to format your queries (either for search or query), please refer to the Solr documentation as well as the rest of Datafari’s documentation for the fields available.
The /proposals handler works just like /suggest. However, instead of providing autocomplete suggestions, it processes a search based on the query. This one is meant to be used for autoproposals. The service only returns those fields:
title
preview_content
url
Response format
The response format of this endpoint does not follow the standard response format of this API.
The payload of the response is the response from solr (please refer to the Solr documentation to see what those response look like or experiment with the endpoint).
If solr encountered an error, the endpoint will most of the time respond with 200 status, the error being in the solr response itself.
If an error occurred while Datafari is querying Solr, the response may be a 500 or 5xx http response with possibly no JSON (and maybe an html page as a response body).
For each document in the response, they have two fields for the url:
doc.url: the original url of the documentdoc.click_url: The url to use for the href link to send the user to the document (and will track user clicks to get statistics in the search engine)
GET /rest/v2.0/results/export?*
This is the endpoint to perform an export of the result of a provided query. Here are the parameters to provide:
query: the main query to perform. ex:
query=*:*facetQuery: An array containing all the facet queries. ex:
facetQuery[]={!key=From%20100KB%20To%2010MB}original_file_size:[102400 TO 10485760]&facetQuery[]={!key=More%20Than%2010MB}original_file_size:[10485760 TO *]facetField: An array containing all the facet fields. ex:
facetField[]=extension&facetField[]=language&facetField[]=sourcefq: An array containing all the active filter queries. ex:
fq[]={!tag=query}original_file_size:[102400 TO 10485760]&fq[]={!tag=author}(author:"agence de l'eau artois picardie")sort: The sort method to apply to results, can be either "score desc", or "score asc". ex:
sort=score descfl: The list of fields that must be returned in the results. The fields must be separated by a coma. ex:
fl=title,last_modified,urlnbResults: The number of results that the export file must contain. ex:
nbResults=500
Be careful with this parameter, because the higher is the number, the more the query will take time and the export file will be bigtype: The type of the export file to generate. Currently (December 2022) the only supported type is “excel”:
type=excel
Here is an example of a GET request to the export API:
The response of this endpoint is a bytes input stream of the generated export file. In a standard web browser like chrome, it will trigger a download process
V1.0
Bellow is a set of API endpoints that are implemented or in the roadmap. Endpoints that are not implemented are clearly identified by the “NOT IMPLEMENTED” string in the response column. Those endpoints return a 501 HTTP Response code when queried (which is the code for the NOT_IMPLEMENTED http error). For implemented endpoints, query body and format for the content object of the response in case of success are provided.
METHOD | URL | DESCRIPTION | QUERY BODY | RESPONSE | PROTECTED |
|---|---|---|---|---|---|
GET | users/current | Get the information about the currently connected user |
| see https://datafari.atlassian.net/wiki/spaces/DATAFARI/pages/2625634305 for more information about the uiConfig object. | Authenticated User |
PUT | users/current | Update user information, only the language and uiConfig can be modified. | see https://datafari.atlassian.net/wiki/spaces/DATAFARI/pages/2625634305 for more information about the uiConfig object. Both arguments are optional, if none is provided, nothing is done |
| Authenticated User |
GET | users/current/uiconfig | Get only the uiConfig for the current user |
| see https://datafari.atlassian.net/wiki/spaces/DATAFARI/pages/2625634305 for more information about the uiConfig object. | Authenticated User |
PUT | users/current/uiconfig | Update only the uiConfig for the current user | see for more information about the uiConfig object.
| echos the query | Authenticated User |
GET | status/features/favorites | Provide the status of the favorite feature |
|
| |
GET | users/current/alerts | Provide the list of alerts for the current user |
| Authenticated User | |
POST | users/current/alerts | Create a new alert for the current user | Echos the parameters with the created id | Authenticated User | |
PUT | users/current/alerts/{id} | Updates alert {id} for the current user | Response should be an echo of the query with an updated ID | Authenticated User | |
DELETE | users/current/alerts/{id} | Delete alert {id} from the current user alerts |
| The deleted alert object is returned. | Authenticated User |
GET | users/current/savedsearches | Retrieve the set of saved searches for the current user |
|
| |
POST | users/current/savedsearches | Creates a new saved search for the current user | Echos the parameters |
| |
PUT | users/current/savedsearches/{savedSearchname} | Updates the saved search with name savedSearchname for the current user | The name property of the object must be the same as the name provided in the URL | Echos the saved data |
|
DELETE | users/current/savedseaches/{savedSearchname} | Delete the saved search with name savedSearchname for the current user. |
| Echos the deleted saved search data |
|
GET | users/current/favorites | Retrieve the list of favorites for the current user |
|
| |
POST | users/current/favorites | Adds a new favorite for the current user | Echos the information of the saved favorite |
| |
DELETE | users/current/favorites | Delete the favorite with the id provided in the body for the current user. | Echos the information of the deleted favorite |
| |
GET | goldenqueries | Retrieve the list of saved golden queries |
| NOT IMPLEMENTED | SearchExpert |
GET | goldenqueries/{id} | Retrieve the information of a particular golden query |
| NOT IMPLEMENTED | SearchExpert |
POST | goldenqueries | Creates a new golden query |
| NOT IMPLEMENTED | SearchExpert |
PUT | goldenqueries/{id} | Updates the golden query with the provided id |
| NOT IMPLEMENTED | SearchExpert |
DELETE | goldenqueries/{id} | Deletes the golden query with the provided id |
| NOT IMPLEMENTED | SearchExpert |
GET | fields/info | Get the list of information about solr fields that can be used. |
|
| |
GET | fields/exact | Get the list of exact search fields (for advanced search) |
|
| |
GET | fields/autocomplete | Get the list of fields for which an autocomplete is available (for advanced search) |
|
| |
GET | fields/label | Get the list of mappings between fields name and labels (for display purposes) |
|
| |
GET | fields/fixedvalues | Get the list of fields that can only take fixed values and their list of possible values (for advanced search) |
| When an entry in the array is not an object with a value and label key but only a string, it is used both as the value and label |
|
GET | help/{locale} | Get the help text in the provided locale with a fallback to a default text if the required locale is not available. |
|
| |
GET | privacy/{locale} | Get the privacy text in the provided locale with a fallback to a default text if the required locale is not available. |
|
| |
GET | licence | Get information about the licence currently in use. To display warning message when relevant. |
| Users information is shown to administrator users only ending = close to reach the limit of the licence |
|
GET | aggregator | Get the list of sources available in the aggregator when it is active. |
| An array of available aggregated sources for the current user, each element of the array is an object with the following properties:
Returns and empty array if the aggregator feature is not active. |
|
GET | sources/external | Get the list of external source available |
| NOT IMPLEMENTED |
|
GET | URL?url=blablabla | Redirects to the required document, used to send the user to the source document when he clicks on the result. |
| NOT IMPLEMENTED |
|
GET | search/{handler}?{query} | Perform a search or suggest query. |
| SPECIFIC RESPONSE FORMAT |
|
GET | results/export | Get the csv version of the results for export |
| NOT IMPLEMENTED |
|
GET | results/download?file=path | download the provided file from the results |
| NOT IMPLEMENTED |
|
GET | auth?callback=url |
| User must be redirected to this URL, Datafari will redirect to the callback URL after the auth process is complete. | User redirected to the callback URL |
|
Keep in mind that for now, this API is meant to cover standard users actions only. Admin actions are out of the scope for the time being.
Details
Special cases
Auth
For use authentication, the browser must be redirected to the auth endpoint. Once Datafari has finished the authentication process, the user is redirected to the callback URL provided as a URL parameter.
The URL to redirect the user to is:
Provide any URL you need the user to be send back to as the value for the callback parameter.
GET /rest/v1.0/search/*
This is the endpoint to perform a search request. This endpoint expects a search handler to be provided as well as all the elements of a solr query as URL parameters. A simple example for a search query would be:
This endpoints allows the use of only a few selected search handlers for security reasons. The handlers that can be called are different depending on the value of the special “action” URL parameter.
action= | handlers allowed |
|---|---|
search OR unset | /select /stats /statsQuery / |
suggest | /suggest Configuration specific handlers for advanced autocomplete functionalities (entity recognition, …) |
The main handlers to keep in mind are /select and /suggest.
The /select handlers is used to perform search queries while the suggest handler is used to get suggestions for autocomplete.
For how to format you queries (either for search or query), please refer to the Solr documentation as well as the rest of Datafari’s documentation for the fields available.
Response format
The response format of this endpoint does not follow the standard response format of this API. The payload of the response is the response from solr unfiltered (please refer to the Solr documentation to see what those response look like or experiment with the endpoint).
If solr encountered an error, the endpoint will most of the time respond with 200 status, the error being in the solr response itself.
If an error occurred while Datafari is querying Solr, the response may be a 500 or 5xx http response with possibly no JSON (and maybe an html page as a response body).
Standard endpoints
GET /rest/v1.0/users/current
This endpoints returns the information about the currently connected user in the following form:
Exemple request / response
Request:
Response: