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| Responsible Owner: FHIR Infrastructure Work Group | Standards Status : Informative |
Raw JSON ( canonical form + also see JSON Format Specification )
Operation Definition
{
"resourceType" : "OperationDefinition",
"id" : "StructureMap-transform",
"text" : {
"status" : "extensions",
"div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p>URL: [base]/StructureMap/$transform</p><p>URL: [base]/StructureMap/[id]/$transform</p><p>Parameters</p><table class=\"grid\"><tr><td><b>Use</b></td><td><b>Name</b></td><td><b>Scope</b></td><td><b>Cardinality</b></td><td><b>Type</b></td><td><b>Binding</b></td><td><b>Documentation</b></td></tr><tr><td>IN</td><td>source</td><td>type</td><td>0..1</td><td><a href=\"datatypes.html#uri\">uri</a></td><td/><td><div><p>The structure map to apply. This is only needed if the operation is invoked at the resource level and no structureMap has been provided. If the $transform operation is invoked on a particular structure map, this will be ignored by the server</p>\n</div></td></tr><tr><td>IN</td><td>sourceMap</td><td/><td>0..1</td><td><a href=\"structuremap.html\">StructureMap</a></td><td/><td><div><p>The structure map to apply. This is only needed when the operation is invoked at the resource level and no URI has been provided.</p>\n</div></td></tr><tr><td>IN</td><td>supportingMap</td><td/><td>0..*</td><td><a href=\"structuremap.html\">StructureMap</a></td><td/><td><div><p>StructureMap resources that support the source map. If a source URL is provided, the map can be provided in this parameter (or it can be provided as sourceMap).</p>\n</div></td></tr><tr><td>IN</td><td>srcMap</td><td/><td>0..*</td><td><a href=\"datatypes.html#string\">string</a></td><td/><td><div><p>The same as structureMap, but the resource is provided in the mapping language rather than as a structureMap.</p>\n</div></td></tr><tr><td>IN</td><td>content</td><td/><td>1..1</td><td><a href=\"resource.html\">Resource</a></td><td/><td><div><p>The logical content to transform</p>\n</div></td></tr><tr><td>OUT</td><td>return</td><td/><td>1..1</td><td><a href=\"resource.html\">Resource</a></td><td/><td><div><p>The result of the transform</p>\n</div></td></tr></table><div><p>The input and return are specified as 'Resources'. In most usage of the $transform operation, either the input or return content is not a valid FHIR resource. In these cases, the return type is actually a <a href=\"binary.html\">Binary</a> resource. For this operation, the Binary resources may be encoded directly, using a mime-type, as shown in the example. Note: this specification does not yet address the means by which the servers may know the correct mime types for the various content involved</p>\n</div></div>"
"status" : "generated",
"div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: OperationDefinition StructureMap-transform</b></p><a name=\"StructureMap-transform\"> </a><a name=\"hcStructureMap-transform\"> </a><p>URL: [base]/StructureMap/$transform</p><p>URL: [base]/StructureMap/[id]/$transform</p><h3>Parameters</h3><table class=\"grid\"><tr><td><b>Use</b></td><td><b>Name</b></td><td><b>Scope</b></td><td><b>Cardinality</b></td><td><b>Type</b></td><td><b>Binding</b></td><td><b>Documentation</b></td></tr><tr><td>IN</td><td>source</td><td>type</td><td>0..1</td><td><a href=\"datatypes.html#uri\">uri</a></td><td/><td><div><p>The structure map to apply. This is only needed if the operation is invoked at the resource level and no structureMap has been provided. If the $transform operation is invoked on a particular structure map, this will be ignored by the server</p>\n</div></td></tr><tr><td>IN</td><td>sourceMap</td><td/><td>0..1</td><td><a href=\"structuremap.html\">StructureMap</a></td><td/><td><div><p>The structure map to apply. This is only needed when the operation is invoked at the resource level and no URI has been provided.</p>\n</div></td></tr><tr><td>IN</td><td>supportingMap</td><td/><td>0..*</td><td><a href=\"structuremap.html\">StructureMap</a></td><td/><td><div><p>StructureMap resources that support the source map. If a source URL is provided, the map can be provided in this parameter (or it can be provided as sourceMap).</p>\n</div></td></tr><tr><td>IN</td><td>srcMap</td><td/><td>0..*</td><td><a href=\"datatypes.html#string\">string</a></td><td/><td><div><p>The same as structureMap, but the resource is provided in the mapping language rather than as a structureMap.</p>\n</div></td></tr><tr><td>IN</td><td>content</td><td/><td>1..1</td><td><a href=\"resource.html\">Resource</a></td><td/><td><div><p>The logical content to transform</p>\n</div></td></tr><tr><td>OUT</td><td>return</td><td/><td>1..1</td><td><a href=\"resource.html\">Resource</a></td><td/><td><div><p>The result of the transform</p>\n</div></td></tr></table><div><p>The input and return are specified as 'Resources'. In most usage of the $transform operation, either the input or return content is not a valid FHIR resource. In these cases, the return type is actually a <a href=\"binary.html\">Binary</a> resource. For this operation, the Binary resources may be encoded directly, using a mime-type, as shown in the example. Note: this specification does not yet address the means by which the servers may know the correct mime types for the various content involved</p>\n</div></div>"
},
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger" : 2
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode" : "trial-use"
"valueCode" : "normative"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode" : "fhir"
}],
"url" : "http://hl7.org/fhir/OperationDefinition/StructureMap-transform",
"version" : "5.0.0",
"version" : "6.0.0-ballot3",
"name" : "Transform",
"title" : "Model Instance Transformation",
"status" : "draft",
"status" : "active",
"kind" : "operation",
"experimental" : false,
"date" : "2023-03-26T15:21:02+11:00",
"publisher" : "HL7 (FHIR Project)",
"date" : "2025-11-10T15:17:08+00:00",
"publisher" : "HL7 International / FHIR Infrastructure",
"contact" : [{
"telecom" : [{
"system" : "url",
"value" : "http://hl7.org/fhir"
},
{
"system" : "email",
"value" : "fhir@lists.hl7.org"
}]
},
{
"telecom" : [{
"system" : "url",
"value" : "http://www.hl7.org/Special/committees/fiwg"
}]
}],
"description" : "The transform operation takes input content, applies a structure map transform, and then returns the output.",
"jurisdiction" : [{
"coding" : [{
"system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
"code" : "001",
"display" : "World"
}]
}],
"affectsState" : false,
"code" : "transform",
"comment" : "The input and return are specified as 'Resources'. In most usage of the $transform operation, either the input or return content is not a valid FHIR resource. In these cases, the return type is actually a [Binary](binary.html) resource. For this operation, the Binary resources may be encoded directly, using a mime-type, as shown in the example. Note: this specification does not yet address the means by which the servers may know the correct mime types for the various content involved",
"resource" : ["StructureMap"],
"system" : false,
"type" : true,
"instance" : true,
"parameter" : [{
"name" : "source",
"use" : "in",
"scope" : ["type"],
"min" : 0,
"max" : "1",
"documentation" : "The structure map to apply. This is only needed if the operation is invoked at the resource level and no structureMap has been provided. If the $transform operation is invoked on a particular structure map, this will be ignored by the server",
"type" : "uri"
},
{
"name" : "sourceMap",
"use" : "in",
"min" : 0,
"max" : "1",
"documentation" : "The structure map to apply. This is only needed when the operation is invoked at the resource level and no URI has been provided.",
"type" : "StructureMap"
},
{
"name" : "supportingMap",
"use" : "in",
"min" : 0,
"max" : "*",
"documentation" : "StructureMap resources that support the source map. If a source URL is provided, the map can be provided in this parameter (or it can be provided as sourceMap).",
"type" : "StructureMap"
},
{
"name" : "srcMap",
"use" : "in",
"min" : 0,
"max" : "*",
"documentation" : "The same as structureMap, but the resource is provided in the mapping language rather than as a structureMap.",
"type" : "string"
},
{
"name" : "content",
"use" : "in",
"min" : 1,
"max" : "1",
"documentation" : "The logical content to transform",
"type" : "Resource"
},
{
"name" : "return",
"use" : "out",
"min" : 1,
"max" : "1",
"documentation" : "The result of the transform",
"type" : "Resource"
}]
}
Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.
FHIR
®©
HL7.org
2011+.
FHIR
R5
hl7.fhir.core#5.0.0
R6
hl7.fhir.core#6.0.0-ballot3
generated
on
Sun,
Mar
26,
2023
15:26+1100.
Mon,
Nov
10,
2025
15:23+0000.
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