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Service
Method
JsonDataInvokeH
Description
Invokes a REST service by post a key/value pair and returns a dataset containing the fields of the Json structure and info returned by the REST service (Headers, Body, StatusCode, StatusDescription)
Input |
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Name |
Description |
Type |
Optional |
baseUrl |
The base url of the REST service (ex.: “https://api.twitter.com/1.1/”). Required, unless specified in the “BaseUrl” configuration field. |
String |
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resource |
The resource (ex.: “statuses/show.json”). Required, unless specified in the “Resource” configuration field. |
String |
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parameters |
Resource parameters, separated by the & character (ex.: “?id=210462857140252672&trim_user=true”). Methods ParametersToString, Detokenize or SimpleDetokenize can be used to get this string. |
String |
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method |
The request method to use to contact the REST resource (“GET”, “POST”, “DELETE”, …). Defaults to the “Method” configuration field, if specified, otherwise to “GET”. |
String |
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contentType |
The media type of the request (ex.: “application/x-www-form-urlencoded”, “text/plain”; see http://en.wikipedia.org/wiki/MIME_type). Defaults to the “ContentType” configuration field, if specified. |
String |
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data |
A Key/Value pair collection of parameters to post (ex.: "id", "210462857140252672", "trim_user", "true"). |
Dataset |
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host |
The Host header value to use in the HTTP request independent from the request URI; it consists of a hostname and an optional port number (ex.: “www.contoso.com:8080″). Defaults to the “Host” configuration field, if specified, otherwise it is derived from baseUrl. |
String |
|
userAgent |
The user-agent header value (ex.: “.NET Framework Test Client”). Defaults to the “UserAgent” configuration field, if specified. |
String |
|
timeout |
The number of milliseconds to wait before the request times out. Defaults to the “Timeout” configuration field, if specified, otherwise to 100000 (100 seconds). |
Int |
|
maximumAutomaticRedirections |
The maximum number of redirection responses that the request follows; -1 indicates automatic redirections are not allowed. Defaults to the “MaximumAutomaticRedirections” configuration field, if specified, otherwise to 50. |
Int |
|
maximumResponseHeadersLength |
The maximum allowed length of the response headers, in kilobytes (1024 bytes); a value of -1 means no limit is imposed on the response headers received. Defaults to the “MaximumResponseHeadersLength” configuration field, if specified, otherwise to 64. |
Int |
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headers |
Additional headers for the HTTP request; for example, it can contain the “Authorization” header for the “OAuth” authentication (see http://tools.ietf.org/html/rfc5849#section-3.5.1 and http://hueniverse.com/oauth/guide/authentication/). It can also contain the standard headers "Method", "ContentType", "Host", "UserAgent", "Timeout", MaximumAutomaticRedirections", "MaximumResponseHeadersLength" and "Accept", but if there are corresponding parameters with non-null values, they prevail. |
Dataset |
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credentialsType |
Type of the authentication credentials associated with the request: 1 = None (credentials not required or otherwise specified, maybe through the "Authorization" header) 2 = NetworkCredentials ("userName" and "password" must be specified) 3 = DefaultNetworkCredentials (the network credentials of the current security context) 4 = DefaultCredentials (the system credentials of the application) 5 = BasicAuthentication ("UserName" and "Password" must be specified) Defaults to the "CredentialsType" configuration field, if specified, otherwise to 1 (None). |
Int |
|
userName |
User name (required if “CredentialsType” = 2 or 5). Defaults to the “UserName” configuration field, if specified. |
String |
|
password |
Password (required if “CredentialsType” = 2 or 5). Defaults to the “Password” configuration field, if specified. |
String |
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fields |
A list containing the names of the first-level fields to return in dataset; a null or empty list implies that all fields are returned. |
List of string |
|
jsonFieldNames |
A list containing the names of fields (regardless of the level) that have to be mapped to the corresponding fields specified in the dictionaryFieldNames list; a null or empty list implies that the field names in the Json structure will be used as keys in the returned dataset. |
List of string |
|
dictionaryFieldNames |
A list containing the names of the dictionary keys corresponding to the field names specified in the jsonFieldNames list; a null or empty list implies that the field names in the Json structure will be used as keys in the returned dataset. |
List of string |
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valuesIfNull |
A Key/Value pair collection containing values to assign to the specified fields if their returned value is null. Example: if valuesIfNull contains “first_name”, “” “trim_user”, false the returned Dataset will have any field named “first_name” (at any level) valued with “” instead of null and any field named “trim_user” (at any level) valued with false instead of null. |
Dataset |
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Output |
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Name |
Description |
Type |
Optional |
returnValue |
A dataset containing the following fields: •Headers (Dataset): a collection of key/value pairs of the returned headers; •Body (Dataset): a collection of key/value pairs of the returned json body; •StatusCode (string): the http status code returned by the REST service (see "HTTP status codes"); •StatusDescription (string): the http status description returned by the REST service. |
Dataset |
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Remarks
If only the complete url is available (not its baseUrl and resource parts), it can be passed in anyone of the two parameters (baseUrl or resource) leaving the other empty.
The jsonFieldNames and dictionaryFieldNames lists must have the same number of elements. As an example, if jsonFieldNames[0] = "pageid" and dictionaryFieldNames[0] = "PageNumber", the "pageid" field in the Json structure will be returned as the "PageNumber" field in the dataset; fields not present in the jsonFieldNames list will retain their names in the returned dataset.