Class: IdentifierService

IdentifierService()

new IdentifierService()

Service for DataONE identifier generation and reservation.
Since:
  • 2.39.0
Source:

Extends

Methods

clearCache() → {Promise.<void>}

Clear the cache for the current user scope.
Inherited From:
Source:
Returns:
Promise resolving when the cache is cleared
Type
Promise.<void>

download(path, optionsopt) → {Promise.<*>}

Download data from a path with optional caching.
Parameters:
Name Type Attributes Description
path string Path relative to baseUrl
options object <optional>
Options passed to DataONEHttpClient#request (except `path`), plus cache controls.
Properties
Name Type Attributes Description
auth boolean <optional>
Whether to resolve a token automatically
useCache boolean <optional>
Whether to cache responses, default true.
cacheKey string <optional>
Cache key override
cacheTtlMs number | null <optional>
Cache TTL override
Inherited From:
Source:
Returns:
Promise resolving to response data
Type
Promise.<*>

generateIdentifier(paramsopt, optionsopt) → {Promise.<DataONEHttpResponse>}

Generate a new DataONE identifier.
Parameters:
Name Type Attributes Description
params object <optional>
Generation parameters.
Properties
Name Type Attributes Description
scheme string <optional>
Identifier scheme.
options object <optional>
Request options.
Source:
Returns:
Parsed XML response with identifier.
Type
Promise.<DataONEHttpResponse>

getCached(key) → {Promise.<*>}

Get a cached value scoped by the current user.
Parameters:
Name Type Description
key string Cache key
Inherited From:
Source:
Returns:
Promise resolving to the cached value
Type
Promise.<*>

getStore() → {PersistentStorage}

Get a PersistentStorage instance automatically scoped by the logged in user, using the configuration options provided to the constructor.
Inherited From:
Source:
Returns:
Storage instance
Type
PersistentStorage

getToken() → {Promise.<string>}

Resolve an auth token from MetacatUI when available.
Inherited From:
Source:
Returns:
Promise resolving to an auth token
Type
Promise.<string>

getUserName() → {Promise.<(string|null)>}

Resolve the current username from the MetacatUI app user model.
Inherited From:
Source:
Returns:
Promise resolving to the username, or null if unavailable.
Type
Promise.<(string|null)>

isCached(key) → {Promise.<boolean>}

Check whether a value exists in the cache for the current user scope.
Parameters:
Name Type Description
key string Cache key
Inherited From:
Source:
Returns:
Promise resolving to whether the value is cached.
Type
Promise.<boolean>

removeCached(key) → {Promise.<void>}

Remove a cached value for the current user scope.
Parameters:
Name Type Description
key string Cache key
Inherited From:
Source:
Returns:
Promise resolving when removal completes
Type
Promise.<void>

request(optionsopt) → {Promise.<DataONEHttpResponse>}

Send a request via the DataONEHttpClient.
Parameters:
Name Type Attributes Description
options object <optional>
Request options passed to DataONEHttpClient#request, plus auth controls.
Properties
Name Type Attributes Description
path string Path relative to baseUrl
auth boolean <optional>
Whether to resolve a token automatically
Inherited From:
Source:
Returns:
Promise resolving to the response.
Type
Promise.<DataONEHttpResponse>

requestWithClient(client, optionsopt) → {Promise.<DataONEHttpResponse>}

Send a request through a specific DataONEHttpClient instance.
Parameters:
Name Type Attributes Description
client DataONEHttpClient Client instance to use
options object <optional>
Request options
Inherited From:
Source:
Throws:
When client is invalid or the request fails
Type
Error
Returns:
Promise resolving to the response.
Type
Promise.<DataONEHttpResponse>

reserveIdentifier(pid, optionsopt) → {Promise.<DataONEHttpResponse>}

Reserve an existing identifier.
Parameters:
Name Type Attributes Description
pid string Identifier to reserve.
options object <optional>
Request options.
Source:
Returns:
Parsed XML response with identifier.
Type
Promise.<DataONEHttpResponse>

resolveToken(authopt) → {Promise.<(string|null)>}

Determine the token to use, if any, for a request.
Parameters:
Name Type Attributes Description
auth boolean <optional>
Whether to use authentication for this request If set to false, no token will be used. If true, getToken() will be called. When undefined, defaultAuth is used.
Inherited From:
Source:
Returns:
Promise resolving to the token, or null if no auth.
Type
Promise.<(string|null)>

scopeKey() → {Promise.<string>}

If user is logged in, get a key based on their username; otherwise, return a "public" scope key.
Inherited From:
Source:
Returns:
Promise resolving to the scope key
Type
Promise.<string>

sendIdentifierRequest(path, body, context, optionsopt) → {Promise.<DataONEHttpResponse>}

Execute an identifier endpoint request and normalize the XML response.
Parameters:
Name Type Attributes Description
path string Identifier endpoint path.
body FormData Request payload.
context string Error/parse context.
options object <optional>
Request options.
Source:
Returns:
Parsed identifier response.
Type
Promise.<DataONEHttpResponse>

sendParsedIdentifierRequest(params) → {Promise.<DataONEHttpResponse>}

Send a request whose body is a DataONE identifier response and parse the returned XML. Shared by services that POST/PUT and read back an identifier (e.g. IdentifierService, ObjectService).
Parameters:
Name Type Description
params object Request params
Properties
Name Type Attributes Description
client DataONEHttpClient <optional>
Client to use. Defaults to the service's primary client when omitted.
requestOptions object Options from DataONEService.buildRequestOptions.
context string Error/parse context label
Inherited From:
Source:
Throws:
When the request or identifier parsing fails
Type
Error
Returns:
Response with parsed identifier data.
Type
Promise.<DataONEHttpResponse>

setCached(key, value, optionsopt) → {Promise.<*>}

Store a value in the cache for the current user scope.
Parameters:
Name Type Attributes Description
key string Cache key
value * Value to store
options object <optional>
Cache scope options
Properties
Name Type Attributes Description
ttlMs number | null <optional>
Override cache TTL in ms
Inherited From:
Source:
Returns:
Promise resolving to the stored value
Type
Promise.<*>

shouldUseCache() → {Promise.<boolean>}

Determine whether caching is allowed for the current user scope.
Inherited From:
Source:
Returns:
Promise resolving to whether caching is allowed.
Type
Promise.<boolean>

upload(path, optionsopt) → {Promise.<DataONEHttpResponse>}

Upload data to a path.
Parameters:
Name Type Attributes Description
path string Path relative to baseUrl
options object <optional>
Options passed to DataONEHttpClient#request (except `path`), plus cache controls.
Properties
Name Type Attributes Description
auth boolean <optional>
Whether to resolve a token automatically
cacheKey string <optional>
Cache key override
Inherited From:
Source:
Returns:
Promise resolving to the response.
Type
Promise.<DataONEHttpResponse>

buildGenerateFormData(paramsopt) → {FormData}

Build FormData for the DataONE generateIdentifier request.
Parameters:
Name Type Attributes Description
params object <optional>
GenerateIdentifier params.
Properties
Name Type Attributes Description
scheme string <optional>
Identifier scheme.
fragment string <optional>
Optional identifier fragment.
Source:
Throws:
When params is not an object or has unsupported keys
Type
Error
Returns:
FormData payload.
Type
FormData

buildReserveFormData(pid) → {FormData}

Build FormData for the DataONE reserveIdentifier request.
Parameters:
Name Type Description
pid string Identifier to reserve.
Source:
Returns:
FormData payload.
Type
FormData

isTransientIdentifierError(error) → {boolean}

Whether identifier generation failed for a transient network reason. Callers may use this to decide whether local UUID fallback is acceptable.
Parameters:
Name Type Description
error Error Identifier-service error.
Source:
Returns:
Whether local UUID fallback is allowed.
Type
boolean

resolveBaseUrl(baseUrlopt) → {string}

Resolve the CN DataONE API base URL for identifier operations. If no baseUrl is provided, it is composed from the configured CN base URL and service path in AppModel.
Parameters:
Name Type Attributes Description
baseUrl string <optional>
Candidate base URL.
Source:
Returns:
Normalized base URL, or an empty string when unresolved.
Type
string

IdentifierService(optionsopt)

new IdentifierService(optionsopt)

Parameters:
Name Type Attributes Description
options object <optional>
Service options. See DataONEService.optionsFromDescriptor for the shared option shape.
Properties
Name Type Attributes Description
baseUrl string <optional>
CN DataONE API base URL (for example, `https://cn.dataone.org/cn/v2`).
Source:

Methods

clearCache() → {Promise.<void>}

Clear the cache for the current user scope.
Inherited From:
Source:
Returns:
Promise resolving when the cache is cleared
Type
Promise.<void>

download(path, optionsopt) → {Promise.<*>}

Download data from a path with optional caching.
Parameters:
Name Type Attributes Description
path string Path relative to baseUrl
options object <optional>
Options passed to DataONEHttpClient#request (except `path`), plus cache controls.
Properties
Name Type Attributes Description
auth boolean <optional>
Whether to resolve a token automatically
useCache boolean <optional>
Whether to cache responses, default true.
cacheKey string <optional>
Cache key override
cacheTtlMs number | null <optional>
Cache TTL override
Inherited From:
Source:
Returns:
Promise resolving to response data
Type
Promise.<*>

generateIdentifier(paramsopt, optionsopt) → {Promise.<DataONEHttpResponse>}

Generate a new DataONE identifier.
Parameters:
Name Type Attributes Description
params object <optional>
Generation parameters.
Properties
Name Type Attributes Description
scheme string <optional>
Identifier scheme.
options object <optional>
Request options.
Source:
Returns:
Parsed XML response with identifier.
Type
Promise.<DataONEHttpResponse>

getCached(key) → {Promise.<*>}

Get a cached value scoped by the current user.
Parameters:
Name Type Description
key string Cache key
Inherited From:
Source:
Returns:
Promise resolving to the cached value
Type
Promise.<*>

getStore() → {PersistentStorage}

Get a PersistentStorage instance automatically scoped by the logged in user, using the configuration options provided to the constructor.
Inherited From:
Source:
Returns:
Storage instance
Type
PersistentStorage

getToken() → {Promise.<string>}

Resolve an auth token from MetacatUI when available.
Inherited From:
Source:
Returns:
Promise resolving to an auth token
Type
Promise.<string>

getUserName() → {Promise.<(string|null)>}

Resolve the current username from the MetacatUI app user model.
Inherited From:
Source:
Returns:
Promise resolving to the username, or null if unavailable.
Type
Promise.<(string|null)>

isCached(key) → {Promise.<boolean>}

Check whether a value exists in the cache for the current user scope.
Parameters:
Name Type Description
key string Cache key
Inherited From:
Source:
Returns:
Promise resolving to whether the value is cached.
Type
Promise.<boolean>

removeCached(key) → {Promise.<void>}

Remove a cached value for the current user scope.
Parameters:
Name Type Description
key string Cache key
Inherited From:
Source:
Returns:
Promise resolving when removal completes
Type
Promise.<void>

request(optionsopt) → {Promise.<DataONEHttpResponse>}

Send a request via the DataONEHttpClient.
Parameters:
Name Type Attributes Description
options object <optional>
Request options passed to DataONEHttpClient#request, plus auth controls.
Properties
Name Type Attributes Description
path string Path relative to baseUrl
auth boolean <optional>
Whether to resolve a token automatically
Inherited From:
Source:
Returns:
Promise resolving to the response.
Type
Promise.<DataONEHttpResponse>

requestWithClient(client, optionsopt) → {Promise.<DataONEHttpResponse>}

Send a request through a specific DataONEHttpClient instance.
Parameters:
Name Type Attributes Description
client DataONEHttpClient Client instance to use
options object <optional>
Request options
Inherited From:
Source:
Throws:
When client is invalid or the request fails
Type
Error
Returns:
Promise resolving to the response.
Type
Promise.<DataONEHttpResponse>

reserveIdentifier(pid, optionsopt) → {Promise.<DataONEHttpResponse>}

Reserve an existing identifier.
Parameters:
Name Type Attributes Description
pid string Identifier to reserve.
options object <optional>
Request options.
Source:
Returns:
Parsed XML response with identifier.
Type
Promise.<DataONEHttpResponse>

resolveToken(authopt) → {Promise.<(string|null)>}

Determine the token to use, if any, for a request.
Parameters:
Name Type Attributes Description
auth boolean <optional>
Whether to use authentication for this request If set to false, no token will be used. If true, getToken() will be called. When undefined, defaultAuth is used.
Inherited From:
Source:
Returns:
Promise resolving to the token, or null if no auth.
Type
Promise.<(string|null)>

scopeKey() → {Promise.<string>}

If user is logged in, get a key based on their username; otherwise, return a "public" scope key.
Inherited From:
Source:
Returns:
Promise resolving to the scope key
Type
Promise.<string>

sendIdentifierRequest(path, body, context, optionsopt) → {Promise.<DataONEHttpResponse>}

Execute an identifier endpoint request and normalize the XML response.
Parameters:
Name Type Attributes Description
path string Identifier endpoint path.
body FormData Request payload.
context string Error/parse context.
options object <optional>
Request options.
Source:
Returns:
Parsed identifier response.
Type
Promise.<DataONEHttpResponse>

sendParsedIdentifierRequest(params) → {Promise.<DataONEHttpResponse>}

Send a request whose body is a DataONE identifier response and parse the returned XML. Shared by services that POST/PUT and read back an identifier (e.g. IdentifierService, ObjectService).
Parameters:
Name Type Description
params object Request params
Properties
Name Type Attributes Description
client DataONEHttpClient <optional>
Client to use. Defaults to the service's primary client when omitted.
requestOptions object Options from DataONEService.buildRequestOptions.
context string Error/parse context label
Inherited From:
Source:
Throws:
When the request or identifier parsing fails
Type
Error
Returns:
Response with parsed identifier data.
Type
Promise.<DataONEHttpResponse>

setCached(key, value, optionsopt) → {Promise.<*>}

Store a value in the cache for the current user scope.
Parameters:
Name Type Attributes Description
key string Cache key
value * Value to store
options object <optional>
Cache scope options
Properties
Name Type Attributes Description
ttlMs number | null <optional>
Override cache TTL in ms
Inherited From:
Source:
Returns:
Promise resolving to the stored value
Type
Promise.<*>

shouldUseCache() → {Promise.<boolean>}

Determine whether caching is allowed for the current user scope.
Inherited From:
Source:
Returns:
Promise resolving to whether caching is allowed.
Type
Promise.<boolean>

upload(path, optionsopt) → {Promise.<DataONEHttpResponse>}

Upload data to a path.
Parameters:
Name Type Attributes Description
path string Path relative to baseUrl
options object <optional>
Options passed to DataONEHttpClient#request (except `path`), plus cache controls.
Properties
Name Type Attributes Description
auth boolean <optional>
Whether to resolve a token automatically
cacheKey string <optional>
Cache key override
Inherited From:
Source:
Returns:
Promise resolving to the response.
Type
Promise.<DataONEHttpResponse>

buildGenerateFormData(paramsopt) → {FormData}

Build FormData for the DataONE generateIdentifier request.
Parameters:
Name Type Attributes Description
params object <optional>
GenerateIdentifier params.
Properties
Name Type Attributes Description
scheme string <optional>
Identifier scheme.
fragment string <optional>
Optional identifier fragment.
Source:
Throws:
When params is not an object or has unsupported keys
Type
Error
Returns:
FormData payload.
Type
FormData

buildReserveFormData(pid) → {FormData}

Build FormData for the DataONE reserveIdentifier request.
Parameters:
Name Type Description
pid string Identifier to reserve.
Source:
Returns:
FormData payload.
Type
FormData

isTransientIdentifierError(error) → {boolean}

Whether identifier generation failed for a transient network reason. Callers may use this to decide whether local UUID fallback is acceptable.
Parameters:
Name Type Description
error Error Identifier-service error.
Source:
Returns:
Whether local UUID fallback is allowed.
Type
boolean

resolveBaseUrl(baseUrlopt) → {string}

Resolve the CN DataONE API base URL for identifier operations. If no baseUrl is provided, it is composed from the configured CN base URL and service path in AppModel.
Parameters:
Name Type Attributes Description
baseUrl string <optional>
Candidate base URL.
Source:
Returns:
Normalized base URL, or an empty string when unresolved.
Type
string