| projectID | false | either projectID or projectName is required | Project ID from which data should be retrieved | 1 |
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| projectName | false | | Project Name from which data should be retrieved | ECM Matthew |
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| key | true | N/A | key path for the data; multiple keys can be retrieved by separating key paths by '|' | collation/regularized/Rev.1.1|collation/setvariants/Rev.1.1 |
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| subKey | false | | optional, a subKey to differentiate this data at the key path, if multiple values are stored for this key | draft |
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| userName | false | | optional, scope this data for individual user | jsmith |
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| versionHash | false | | retrieve a previous version of this data | |
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| history | false | false | retrieve version history for the data instead of the actual data | true |
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| allUsers | false | false | used with {history}. if true, retrieve also latest versions for all users | true |
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| sessionHash | false | the open session for the current user | optional, use a specific session hash token | |
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| format | false | specified at session open | response output format (json|xml|csv|gchart) | json |
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