SQL Server / Creatio API / $select parameter
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-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
DECLARE @hr int
DECLARE @iTmp0 int
-- Important: Do not use nvarchar(max). See the warning about using nvarchar(max).
DECLARE @sTmp0 nvarchar(4000)
-- This example assumes the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.
DECLARE @http int
-- Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0
EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT
IF @hr <> 0
BEGIN
PRINT 'Failed to create ActiveX component'
RETURN
END
DECLARE @success int
DECLARE @queryParams int
-- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @queryParams OUT
EXEC sp_OAMethod @queryParams, 'UpdateString', @success OUT, '$select', 'Field1,Field2'
EXEC sp_OAMethod @http, 'SetRequestHeader', NULL, 'ForceUseSession', 'true'
EXEC sp_OAMethod @http, 'SetRequestHeader', NULL, 'BPMCSRF', '{{BPMCSRF}}'
DECLARE @resp int
EXEC sp_OAMethod @http, 'QuickRequestParams', @resp OUT, 'GET', 'https://myserver.com/0/odata/Collection1', @queryParams
EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
IF @iTmp0 = 0
BEGIN
EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
PRINT @sTmp0
EXEC @hr = sp_OADestroy @http
EXEC @hr = sp_OADestroy @queryParams
RETURN
END
DECLARE @sbResponseBody int
-- Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbResponseBody OUT
EXEC sp_OAMethod @resp, 'GetBodySb', @success OUT, @sbResponseBody
DECLARE @jResp int
-- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jResp OUT
EXEC sp_OAMethod @jResp, 'LoadSb', @success OUT, @sbResponseBody
EXEC sp_OASetProperty @jResp, 'EmitCompact', 0
PRINT 'Response Body:'
EXEC sp_OAMethod @jResp, 'Emit', @sTmp0 OUT
PRINT @sTmp0
DECLARE @respStatusCode int
EXEC sp_OAGetProperty @resp, 'StatusCode', @respStatusCode OUT
PRINT 'Response Status Code = ' + @respStatusCode
IF @respStatusCode >= 400
BEGIN
PRINT 'Response Header:'
EXEC sp_OAGetProperty @resp, 'Header', @sTmp0 OUT
PRINT @sTmp0
PRINT 'Failed.'
EXEC @hr = sp_OADestroy @resp
EXEC @hr = sp_OADestroy @http
EXEC @hr = sp_OADestroy @queryParams
EXEC @hr = sp_OADestroy @sbResponseBody
EXEC @hr = sp_OADestroy @jResp
RETURN
END
EXEC @hr = sp_OADestroy @resp
-- Sample JSON response:
-- (Sample code for parsing the JSON response is shown below)
-- {
-- "@odata.context": "https://myserver.com/0/odata/$metadata#Employee(Name,FullJobTitle)",
-- "value": [
-- {
-- "Name": "William Walker",
-- "FullJobTitle": "Developer"
-- },
-- {
-- "Name": "Timothy Sawyer",
-- "FullJobTitle": "Developer"
-- },
-- {
-- "Name": "Symon Clarke",
-- "FullJobTitle": "Marketing manager"
-- },
-- {
-- "Name": "Mary King",
-- "FullJobTitle": "Customer manager"
-- },
-- {
-- "Name": "Sarah M. Richards",
-- "FullJobTitle": "Head of accounting department"
-- },
-- {
-- "Name": "Valerie E. Murphy",
-- "FullJobTitle": "Head of marketing department"
-- },
-- {
-- "Name": "Jason Robinson",
-- "FullJobTitle": "Specialist"
-- },
-- {
-- "Name": "Megan Lewis",
-- "FullJobTitle": "Customer manager"
-- },
-- {
-- "Name": "Peter Moore",
-- "FullJobTitle": "Head of development department"
-- },
-- {
-- "Name": "Caleb Jones",
-- "FullJobTitle": "CEO"
-- },
-- {
-- "Name": "John Best",
-- "FullJobTitle": "Head of sales department"
-- },
-- {
-- "Name": "Tiffany J. Martin",
-- "FullJobTitle": "IT Support Engineer"
-- },
-- {
-- "Name": "Tracy Wilkinson",
-- "FullJobTitle": "Marketing manager"
-- }
-- ]
-- }
-- Sample code for parsing the JSON response...
-- Use this online tool to generate parsing code from sample JSON: Generate JSON Parsing Code
DECLARE @Name nvarchar(4000)
DECLARE @FullJobTitle nvarchar(4000)
DECLARE @odata_context nvarchar(4000)
EXEC sp_OAMethod @jResp, 'StringOf', @odata_context OUT, '"@odata.context"'
DECLARE @i int
SELECT @i = 0
DECLARE @count_i int
EXEC sp_OAMethod @jResp, 'SizeOfArray', @count_i OUT, 'value'
WHILE @i < @count_i
BEGIN
EXEC sp_OASetProperty @jResp, 'I', @i
EXEC sp_OAMethod @jResp, 'StringOf', @Name OUT, 'value[i].Name'
EXEC sp_OAMethod @jResp, 'StringOf', @FullJobTitle OUT, 'value[i].FullJobTitle'
SELECT @i = @i + 1
END
EXEC @hr = sp_OADestroy @http
EXEC @hr = sp_OADestroy @queryParams
EXEC @hr = sp_OADestroy @sbResponseBody
EXEC @hr = sp_OADestroy @jResp
END
GO
Curl Command
curl -G -d "$select=Field1,Field2"
-H "ForceUseSession: true"
-H "BPMCSRF: {{BPMCSRF}}"
https://myserver.com/0/odata/Collection1
Postman Collection Item JSON
{
"name": "$select parameter",
"request": {
"method": "GET",
"header": [
{
"key": "ForceUseSession",
"type": "text",
"value": "true"
},
{
"key": "BPMCSRF",
"type": "text",
"value": "{{BPMCSRF}}"
}
],
"url": {
"raw": "{{BaseURI}}/0/odata/{{CollectionName1}}?$select={{FieldName1}},{{FieldName2}}",
"host": [
"{{BaseURI}}"
],
"path": [
"0",
"odata",
"{{CollectionName1}}"
],
"query": [
{
"key": "$select",
"value": "{{FieldName1}},{{FieldName2}}"
}
]
},
"description": "Request for getting specific fields from an object collection instances via the [$select](http://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part2-url-conventions.html#sec_SystemQueryOptionselect) parameter."
},
"response": [
{
"name": "[200] Gets object collection instances with selected fields",
"originalRequest": {
"method": "GET",
"header": [
{
"key": "Accept",
"type": "text",
"value": "application/json"
},
{
"key": "Content-Type",
"type": "text",
"value": "application/json; charset=utf-8"
},
{
"key": "ForceUseSession",
"type": "text",
"value": "true"
},
{
"key": "BPMCSRF",
"type": "text",
"value": "{{BPMCSRF}}"
}
],
"url": {
"raw": "https://myserver.com/0/odata/Employee?$select=Name,FullJobTitle",
"protocol": "https",
"host": [
"myserver",
"com"
],
"path": [
"0",
"odata",
"Employee"
],
"query": [
{
"key": "$select",
"value": "Name,FullJobTitle"
}
]
}
},
"status": "OK",
"code": 200,
"_postman_previewlanguage": "json",
"header": [
{
"key": "Cache-Control",
"value": "no-cache"
},
{
"key": "Pragma",
"value": "no-cache"
},
{
"key": "Content-Type",
"value": "application/json; odata.metadata=minimal"
},
{
"key": "Expires",
"value": "-1"
},
{
"key": "Server",
"value": "Microsoft-IIS/10.0"
},
{
"key": "OData-Version",
"value": "4.0"
},
{
"key": "X-AspNet-Version",
"value": "4.0.30319"
},
{
"key": "X-Powered-By",
"value": "ASP.NET"
},
{
"key": "X-Frame-Options",
"value": "SAMEORIGIN"
},
{
"key": "X-Content-Type-Options",
"value": "nosniff"
},
{
"key": "Date",
"value": "Wed, 26 Feb 2020 14:51:34 GMT"
},
{
"key": "Content-Length",
"value": "884"
}
],
"cookie": [
],
"body": "{\n \"@odata.context\": \"https://myserver.com/0/odata/$metadata#Employee(Name,FullJobTitle)\",\n \"value\": [\n {\n \"Name\": \"William Walker\",\n \"FullJobTitle\": \"Developer\"\n },\n {\n \"Name\": \"Timothy Sawyer\",\n \"FullJobTitle\": \"Developer\"\n },\n {\n \"Name\": \"Symon Clarke\",\n \"FullJobTitle\": \"Marketing manager\"\n },\n {\n \"Name\": \"Mary King\",\n \"FullJobTitle\": \"Customer manager\"\n },\n {\n \"Name\": \"Sarah M. Richards\",\n \"FullJobTitle\": \"Head of accounting department\"\n },\n {\n \"Name\": \"Valerie E. Murphy\",\n \"FullJobTitle\": \"Head of marketing department\"\n },\n {\n \"Name\": \"Jason Robinson\",\n \"FullJobTitle\": \"Specialist\"\n },\n {\n \"Name\": \"Megan Lewis\",\n \"FullJobTitle\": \"Customer manager\"\n },\n {\n \"Name\": \"Peter Moore\",\n \"FullJobTitle\": \"Head of development department\"\n },\n {\n \"Name\": \"Caleb Jones\",\n \"FullJobTitle\": \"CEO\"\n },\n {\n \"Name\": \"John Best\",\n \"FullJobTitle\": \"Head of sales department\"\n },\n {\n \"Name\": \"Tiffany J. Martin\",\n \"FullJobTitle\": \"IT Support Engineer\"\n },\n {\n \"Name\": \"Tracy Wilkinson\",\n \"FullJobTitle\": \"Marketing manager\"\n }\n ]\n}"
}
]
}
