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delphiDll / Salesforce Platform APIs / Update named credential

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var
http: HCkHttp;
success: Boolean;
json: HCkJsonObject;
sbRequestBody: HCkStringBuilder;
resp: HCkHttpResponse;

begin
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

http := CkHttp_Create();

// Use this online tool to generate code from sample JSON: Generate Code to Create JSON

// The following JSON is sent in the request body.

// {
//   "FullName": "MyNamedCredential",
//   "Metadata": {
//     "label": "My Named Credential",
//     "endpoint": "arn:aws:AWS_REGION:AWS_ACCOUNT_ID",
//     "principalType": "Anonymous",
//     "protocol": "NoAuthentication"
//   }
// }

json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'FullName','MyNamedCredential');
CkJsonObject_UpdateString(json,'Metadata.label','My Named Credential');
CkJsonObject_UpdateString(json,'Metadata.endpoint','arn:aws:AWS_REGION:AWS_ACCOUNT_ID');
CkJsonObject_UpdateString(json,'Metadata.principalType','Anonymous');
CkJsonObject_UpdateString(json,'Metadata.protocol','NoAuthentication');

// Adds the "Authorization: Bearer <access_token>" header.
CkHttp_putAuthToken(http,'<access_token>');

sbRequestBody := CkStringBuilder_Create();
CkJsonObject_EmitSb(json,sbRequestBody);

resp := CkHttp_PTextSb(http,'PATCH','https://domain.com/services/data/v{{version}}/tooling/sobjects/NamedCredential/:NAMED_CREDENTIAL_ID',sbRequestBody,'utf-8','application/json',False,False);
if (CkHttp_getLastMethodSuccess(http) = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

Memo1.Lines.Add(IntToStr(CkHttpResponse_getStatusCode(resp)));
Memo1.Lines.Add(CkHttpResponse__bodyStr(resp));
CkHttpResponse_Dispose(resp);

CkHttp_Dispose(http);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbRequestBody);

Curl Command

curl -X PATCH
	-H "Authorization: Bearer <access_token>"
	-d '{
    "FullName": "MyNamedCredential",
    "Metadata": {
        "label": "My Named Credential",
        "endpoint" : "arn:aws:AWS_REGION:AWS_ACCOUNT_ID",
        "principalType" : "Anonymous",
        "protocol": "NoAuthentication" 
    }
}'
https://domain.com/services/data/v{{version}}/tooling/sobjects/NamedCredential/:NAMED_CREDENTIAL_ID

Postman Collection Item JSON

{
  "name": "Update named credential",
  "request": {
    "method": "PATCH",
    "header": [
    ],
    "body": {
      "mode": "raw",
      "raw": "{\n    \"FullName\": \"MyNamedCredential\",\n    \"Metadata\": {\n        \"label\": \"My Named Credential\",\n        \"endpoint\" : \"arn:aws:AWS_REGION:AWS_ACCOUNT_ID\",\n        \"principalType\" : \"Anonymous\",\n        \"protocol\": \"NoAuthentication\" \n    }\n}",
      "options": {
        "raw": {
          "language": "json"
        }
      }
    },
    "url": {
      "raw": "{{_endpoint}}/services/data/v{{version}}/tooling/sobjects/NamedCredential/:NAMED_CREDENTIAL_ID",
      "host": [
        "{{_endpoint}}"
      ],
      "path": [
        "services",
        "data",
        "v{{version}}",
        "tooling",
        "sobjects",
        "NamedCredential",
        ":NAMED_CREDENTIAL_ID"
      ],
      "variable": [
        {
          "key": "NAMED_CREDENTIAL_ID",
          "value": null
        }
      ]
    }
  },
  "response": [
  ]
}